./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_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_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/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_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/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_56229699-15e6-40af-b47f-eb31ca31a494/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 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:43:36,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:43:36,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:43:36,542 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:43:36,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:43:36,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:43:36,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:43:36,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:43:36,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:43:36,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:43:36,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:43:36,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:43:36,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:43:36,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:43:36,602 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:43:36,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:43:36,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:43:36,603 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:43:36,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:43:36,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:43:36,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:43:36,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:43:36,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:43:36,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:43:36,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:43:36,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:43:36,604 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:43:36,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:43:36,604 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:43:36,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:43:36,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:43:36,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:43:36,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:43:36,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:43:36,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:43:36,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:43:36,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:43:36,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:43:36,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:43:36,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:43:36,606 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:43:36,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:43:36,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:43:36,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:43:36,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:43:36,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:43:36,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:43:36,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:43:36,607 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_56229699-15e6-40af-b47f-eb31ca31a494/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 -> 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 [2024-11-24 00:43:37,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:43:37,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:43:37,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:43:37,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:43:37,065 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:43:37,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-11-24 00:43:40,653 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/data/c979642e1/813c1844c9c7474fb998444f176a8694/FLAGf7373f16a [2024-11-24 00:43:41,190 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:43:41,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-11-24 00:43:41,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/data/c979642e1/813c1844c9c7474fb998444f176a8694/FLAGf7373f16a [2024-11-24 00:43:41,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/data/c979642e1/813c1844c9c7474fb998444f176a8694 [2024-11-24 00:43:41,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:43:41,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:43:41,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:43:41,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:43:41,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:43:41,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:43:41" (1/1) ... [2024-11-24 00:43:41,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c117c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:41, skipping insertion in model container [2024-11-24 00:43:41,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:43:41" (1/1) ... [2024-11-24 00:43:41,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:43:41,581 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_56229699-15e6-40af-b47f-eb31ca31a494/sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2024-11-24 00:43:41,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:43:41,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:43:41,936 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_56229699-15e6-40af-b47f-eb31ca31a494/sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2024-11-24 00:43:41,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:43:42,056 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:43:42,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42 WrapperNode [2024-11-24 00:43:42,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:43:42,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:43:42,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:43:42,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:43:42,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,112 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-11-24 00:43:42,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:43:42,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:43:42,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:43:42,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:43:42,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,149 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-24 00:43:42,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,167 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:43:42,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:43:42,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:43:42,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:43:42,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (1/1) ... [2024-11-24 00:43:42,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:43:42,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:43:42,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:43:42,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:43:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:43:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:43:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 00:43:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 00:43:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:43:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:43:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:43:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:43:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:43:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:43:42,280 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:43:42,476 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:43:42,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:43:42,765 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:43:42,766 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:43:42,976 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:43:42,976 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:43:42,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:43:42 BoogieIcfgContainer [2024-11-24 00:43:42,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:43:42,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:43:42,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:43:42,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:43:42,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:43:41" (1/3) ... [2024-11-24 00:43:42,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5782bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:43:42, skipping insertion in model container [2024-11-24 00:43:42,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:42" (2/3) ... [2024-11-24 00:43:42,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5782bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:43:42, skipping insertion in model container [2024-11-24 00:43:42,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:43:42" (3/3) ... [2024-11-24 00:43:42,990 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2024-11-24 00:43:43,011 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:43:43,015 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_30-traces-oplus-vs-meet_true.i that has 2 procedures, 36 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-24 00:43:43,016 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:43:43,088 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 00:43:43,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 37 transitions, 81 flow [2024-11-24 00:43:43,217 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-11-24 00:43:43,221 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:43:43,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 36 events. 2/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-24 00:43:43,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 37 transitions, 81 flow [2024-11-24 00:43:43,231 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 57 flow [2024-11-24 00:43:43,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:43,276 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;@eda8ba8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:43,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-24 00:43:43,285 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:43,285 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-11-24 00:43:43,285 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:43,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:43,286 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-24 00:43:43,289 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-24 00:43:43,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:43,296 INFO L85 PathProgramCache]: Analyzing trace with hash 233947, now seen corresponding path program 1 times [2024-11-24 00:43:43,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:43,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613509812] [2024-11-24 00:43:43,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:43,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:43,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:43,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:43,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613509812] [2024-11-24 00:43:43,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613509812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:43,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:43,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:43,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102402102] [2024-11-24 00:43:43,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:43,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:43,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:43,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:43,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:43,716 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2024-11-24 00:43:43,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-24 00:43:43,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:43,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2024-11-24 00:43:43,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:43,881 INFO L124 PetriNetUnfolderBase]: 45/129 cut-off events. [2024-11-24 00:43:43,884 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:43,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 129 events. 45/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 396 event pairs, 45 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 229. Up to 107 conditions per place. [2024-11-24 00:43:43,887 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 16 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2024-11-24 00:43:43,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 87 flow [2024-11-24 00:43:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2024-11-24 00:43:43,908 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44144144144144143 [2024-11-24 00:43:43,910 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 57 flow. Second operand 3 states and 49 transitions. [2024-11-24 00:43:43,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 87 flow [2024-11-24 00:43:43,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:43,921 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 54 flow [2024-11-24 00:43:43,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2024-11-24 00:43:43,933 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -1 predicate places. [2024-11-24 00:43:43,933 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 54 flow [2024-11-24 00:43:43,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-24 00:43:43,935 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:43,935 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:43,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:43:43,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-24 00:43:43,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:43,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1778076176, now seen corresponding path program 1 times [2024-11-24 00:43:43,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:43,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297957036] [2024-11-24 00:43:43,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:43,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:44,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:44,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297957036] [2024-11-24 00:43:44,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297957036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:44,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:44,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:44,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743059485] [2024-11-24 00:43:44,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:44,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:43:44,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:44,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:43:44,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:43:44,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2024-11-24 00:43:44,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-24 00:43:44,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:44,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2024-11-24 00:43:44,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:44,519 INFO L124 PetriNetUnfolderBase]: 40/131 cut-off events. [2024-11-24 00:43:44,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:44,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 131 events. 40/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 445 event pairs, 18 based on Foata normal form. 14/143 useless extension candidates. Maximal degree in co-relation 238. Up to 59 conditions per place. [2024-11-24 00:43:44,524 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 19 selfloop transitions, 5 changer transitions 14/44 dead transitions. [2024-11-24 00:43:44,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 44 transitions, 170 flow [2024-11-24 00:43:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:43:44,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 00:43:44,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 111 transitions. [2024-11-24 00:43:44,531 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-24 00:43:44,531 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 54 flow. Second operand 7 states and 111 transitions. [2024-11-24 00:43:44,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 44 transitions, 170 flow [2024-11-24 00:43:44,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:44,535 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 68 flow [2024-11-24 00:43:44,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=68, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2024-11-24 00:43:44,536 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2024-11-24 00:43:44,536 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 68 flow [2024-11-24 00:43:44,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-24 00:43:44,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:44,538 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:44,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:43:44,539 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-24 00:43:44,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:44,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1951381058, now seen corresponding path program 1 times [2024-11-24 00:43:44,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:44,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67169966] [2024-11-24 00:43:44,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:44,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:44,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:44,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67169966] [2024-11-24 00:43:44,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67169966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:44,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:44,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:43:44,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444774378] [2024-11-24 00:43:44,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:44,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:44,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:44,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:44,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:44,810 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-11-24 00:43:44,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-11-24 00:43:44,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:44,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-11-24 00:43:44,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:44,893 INFO L124 PetriNetUnfolderBase]: 7/37 cut-off events. [2024-11-24 00:43:44,894 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 00:43:44,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 37 events. 7/37 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 2 based on Foata normal form. 8/42 useless extension candidates. Maximal degree in co-relation 71. Up to 18 conditions per place. [2024-11-24 00:43:44,895 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 9 selfloop transitions, 3 changer transitions 2/21 dead transitions. [2024-11-24 00:43:44,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 88 flow [2024-11-24 00:43:44,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:44,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-24 00:43:44,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5315315315315315 [2024-11-24 00:43:44,897 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 68 flow. Second operand 3 states and 59 transitions. [2024-11-24 00:43:44,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 88 flow [2024-11-24 00:43:44,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 76 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-24 00:43:44,899 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 48 flow [2024-11-24 00:43:44,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2024-11-24 00:43:44,900 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -4 predicate places. [2024-11-24 00:43:44,900 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 48 flow [2024-11-24 00:43:44,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-11-24 00:43:44,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:44,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:44,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:43:44,901 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-24 00:43:44,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:44,902 INFO L85 PathProgramCache]: Analyzing trace with hash -691413459, now seen corresponding path program 1 times [2024-11-24 00:43:44,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:44,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470816640] [2024-11-24 00:43:44,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:44,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:45,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:45,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470816640] [2024-11-24 00:43:45,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470816640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:45,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:45,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:45,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202208325] [2024-11-24 00:43:45,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:45,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:43:45,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:45,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:43:45,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:43:45,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-11-24 00:43:45,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 48 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2024-11-24 00:43:45,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:45,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-11-24 00:43:45,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:45,191 INFO L124 PetriNetUnfolderBase]: 5/30 cut-off events. [2024-11-24 00:43:45,191 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-24 00:43:45,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 30 events. 5/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 53. Up to 16 conditions per place. [2024-11-24 00:43:45,192 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2024-11-24 00:43:45,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 70 flow [2024-11-24 00:43:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-11-24 00:43:45,193 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47297297297297297 [2024-11-24 00:43:45,194 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 48 flow. Second operand 4 states and 70 transitions. [2024-11-24 00:43:45,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 70 flow [2024-11-24 00:43:45,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:45,195 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2024-11-24 00:43:45,195 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=19, 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=22, PETRI_TRANSITIONS=0} [2024-11-24 00:43:45,195 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -8 predicate places. [2024-11-24 00:43:45,196 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2024-11-24 00:43:45,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2024-11-24 00:43:45,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-24 00:43:45,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-11-24 00:43:45,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-24 00:43:45,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:43:45,200 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:45,205 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-24 00:43:45,205 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:43:45,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:43:45 BasicIcfg [2024-11-24 00:43:45,212 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:43:45,212 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:43:45,213 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:43:45,213 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:43:45,214 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:43:42" (3/4) ... [2024-11-24 00:43:45,216 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:43:45,221 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-24 00:43:45,225 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-24 00:43:45,225 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-24 00:43:45,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-24 00:43:45,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:43:45,297 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:43:45,297 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:43:45,297 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:43:45,298 INFO L158 Benchmark]: Toolchain (without parser) took 4046.71ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 40.8MB in the end (delta: 42.6MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-11-24 00:43:45,298 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 167.8MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:43:45,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 802.17ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 63.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:43:45,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.32ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 62.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:43:45,299 INFO L158 Benchmark]: Boogie Preprocessor took 69.00ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 60.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:43:45,300 INFO L158 Benchmark]: RCFGBuilder took 794.41ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 36.2MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:43:45,302 INFO L158 Benchmark]: TraceAbstraction took 2232.06ms. Allocated memory is still 117.4MB. Free memory was 35.9MB in the beginning and 45.0MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:43:45,302 INFO L158 Benchmark]: Witness Printer took 84.87ms. Allocated memory is still 117.4MB. Free memory was 45.0MB in the beginning and 40.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:43:45,304 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 167.8MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 802.17ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 63.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.32ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 62.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.00ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 60.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 794.41ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 36.2MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2232.06ms. Allocated memory is still 117.4MB. Free memory was 35.9MB in the beginning and 45.0MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.87ms. Allocated memory is still 117.4MB. Free memory was 45.0MB in the beginning and 40.8MB in the end (delta: 4.2MB). 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 - 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, 51 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: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 1 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=2, 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, 0.9s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-24 00:43:45,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56229699-15e6-40af-b47f-eb31ca31a494/bin/uautomizer-verify-LYvppIcaGC/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