./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_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_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/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_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/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_b9f26bfb-de16-4ec3-a61b-240c2a378d28/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 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:44:43,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:44:43,259 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:44:43,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:44:43,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:44:43,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:44:43,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:44:43,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:44:43,311 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:44:43,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:44:43,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:44:43,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:44:43,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:44:43,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:44:43,312 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:44:43,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:44:43,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:44:43,313 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:44:43,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:44:43,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:44:43,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:44:43,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:44:43,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:44:43,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:44:43,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:44:43,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:44:43,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:44:43,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:44:43,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:44:43,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:44:43,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:44:43,316 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_b9f26bfb-de16-4ec3-a61b-240c2a378d28/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 -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2024-11-23 23:44:43,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:44:43,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:44:43,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:44:43,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:44:43,645 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:44:43,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-11-23 23:44:46,822 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/data/fa7240b8e/fc4dbe7c3b9d4aaab1599d0eddcf98dd/FLAG8d1ad8e39 [2024-11-23 23:44:47,162 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:44:47,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-11-23 23:44:47,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/data/fa7240b8e/fc4dbe7c3b9d4aaab1599d0eddcf98dd/FLAG8d1ad8e39 [2024-11-23 23:44:47,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/data/fa7240b8e/fc4dbe7c3b9d4aaab1599d0eddcf98dd [2024-11-23 23:44:47,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:44:47,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:44:47,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:44:47,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:44:47,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:44:47,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511f9b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47, skipping insertion in model container [2024-11-23 23:44:47,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:44:47,452 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_b9f26bfb-de16-4ec3-a61b-240c2a378d28/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-11-23 23:44:47,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:44:47,645 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:44:47,659 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_b9f26bfb-de16-4ec3-a61b-240c2a378d28/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-11-23 23:44:47,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:44:47,733 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:44:47,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47 WrapperNode [2024-11-23 23:44:47,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:44:47,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:44:47,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:44:47,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:44:47,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,777 INFO L138 Inliner]: procedures = 165, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 96 [2024-11-23 23:44:47,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:44:47,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:44:47,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:44:47,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:44:47,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,812 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-23 23:44:47,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,824 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:44:47,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:44:47,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:44:47,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:44:47,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (1/1) ... [2024-11-23 23:44:47,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:44:47,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:44:47,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:44:47,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:44:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-23 23:44:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-23 23:44:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 23:44:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:44:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:44:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:44:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 23:44:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:44:47,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:44:47,920 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 23:44:48,081 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:44:48,083 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:44:48,349 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 23:44:48,349 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:44:48,504 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:44:48,504 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 23:44:48,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:44:48 BoogieIcfgContainer [2024-11-23 23:44:48,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:44:48,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:44:48,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:44:48,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:44:48,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:44:47" (1/3) ... [2024-11-23 23:44:48,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42baa1e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:44:48, skipping insertion in model container [2024-11-23 23:44:48,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:44:47" (2/3) ... [2024-11-23 23:44:48,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42baa1e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:44:48, skipping insertion in model container [2024-11-23 23:44:48,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:44:48" (3/3) ... [2024-11-23 23:44:48,516 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2024-11-23 23:44:48,533 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:44:48,535 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_69-refine-protected-loop-interval_true.i that has 2 procedures, 29 locations, 1 initial locations, 3 loop locations, and 2 error locations. [2024-11-23 23:44:48,535 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 23:44:48,600 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 23:44:48,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 34 transitions, 72 flow [2024-11-23 23:44:48,671 INFO L124 PetriNetUnfolderBase]: 6/33 cut-off events. [2024-11-23 23:44:48,674 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:44:48,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 33 events. 6/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-23 23:44:48,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 34 transitions, 72 flow [2024-11-23 23:44:48,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 33 transitions, 69 flow [2024-11-23 23:44:48,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:44:48,703 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;@307f13b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:44:48,705 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-23 23:44:48,715 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:44:48,715 INFO L124 PetriNetUnfolderBase]: 4/23 cut-off events. [2024-11-23 23:44:48,716 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:44:48,716 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:48,716 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:48,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-23 23:44:48,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:48,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1248614986, now seen corresponding path program 1 times [2024-11-23 23:44:48,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:48,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968656649] [2024-11-23 23:44:48,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:49,198 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 23:44:49,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:49,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968656649] [2024-11-23 23:44:49,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968656649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:49,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:49,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:49,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040626337] [2024-11-23 23:44:49,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:49,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:44:49,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:49,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:44:49,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:44:49,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34 [2024-11-23 23:44:49,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 23:44:49,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:49,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34 [2024-11-23 23:44:49,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:49,533 INFO L124 PetriNetUnfolderBase]: 135/274 cut-off events. [2024-11-23 23:44:49,533 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:44:49,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 274 events. 135/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 953 event pairs, 43 based on Foata normal form. 6/239 useless extension candidates. Maximal degree in co-relation 517. Up to 144 conditions per place. [2024-11-23 23:44:49,541 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 32 selfloop transitions, 9 changer transitions 2/49 dead transitions. [2024-11-23 23:44:49,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 49 transitions, 187 flow [2024-11-23 23:44:49,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:44:49,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 23:44:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 90 transitions. [2024-11-23 23:44:49,565 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2024-11-23 23:44:49,566 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 69 flow. Second operand 5 states and 90 transitions. [2024-11-23 23:44:49,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 49 transitions, 187 flow [2024-11-23 23:44:49,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:44:49,580 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 116 flow [2024-11-23 23:44:49,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2024-11-23 23:44:49,588 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2024-11-23 23:44:49,589 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 116 flow [2024-11-23 23:44:49,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 23:44:49,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:49,589 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:49,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:44:49,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-23 23:44:49,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:49,590 INFO L85 PathProgramCache]: Analyzing trace with hash -944516246, now seen corresponding path program 1 times [2024-11-23 23:44:49,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:49,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829631287] [2024-11-23 23:44:49,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:49,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:49,878 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 23:44:49,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:49,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829631287] [2024-11-23 23:44:49,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829631287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:49,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:49,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:49,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326605528] [2024-11-23 23:44:49,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:49,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:44:49,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:49,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:44:49,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:44:49,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-23 23:44:49,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 23:44:49,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:49,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-23 23:44:49,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:50,105 INFO L124 PetriNetUnfolderBase]: 107/251 cut-off events. [2024-11-23 23:44:50,105 INFO L125 PetriNetUnfolderBase]: For 173/179 co-relation queries the response was YES. [2024-11-23 23:44:50,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 251 events. 107/251 cut-off events. For 173/179 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 802 event pairs, 22 based on Foata normal form. 12/243 useless extension candidates. Maximal degree in co-relation 620. Up to 89 conditions per place. [2024-11-23 23:44:50,108 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 31 selfloop transitions, 5 changer transitions 1/45 dead transitions. [2024-11-23 23:44:50,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 45 transitions, 226 flow [2024-11-23 23:44:50,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:44:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:44:50,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-11-23 23:44:50,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6029411764705882 [2024-11-23 23:44:50,110 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 116 flow. Second operand 4 states and 82 transitions. [2024-11-23 23:44:50,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 45 transitions, 226 flow [2024-11-23 23:44:50,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 23:44:50,113 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 137 flow [2024-11-23 23:44:50,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2024-11-23 23:44:50,114 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2024-11-23 23:44:50,114 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 137 flow [2024-11-23 23:44:50,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 23:44:50,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:50,115 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:50,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:44:50,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-23 23:44:50,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash 940290199, now seen corresponding path program 1 times [2024-11-23 23:44:50,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:50,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239896539] [2024-11-23 23:44:50,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 23:44:50,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:50,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239896539] [2024-11-23 23:44:50,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239896539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:50,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:50,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:50,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059088075] [2024-11-23 23:44:50,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:50,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:50,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:50,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:50,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:50,304 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-23 23:44:50,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 137 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) [2024-11-23 23:44:50,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:50,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-23 23:44:50,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:50,421 INFO L124 PetriNetUnfolderBase]: 64/171 cut-off events. [2024-11-23 23:44:50,422 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-23 23:44:50,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 171 events. 64/171 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 498 event pairs, 16 based on Foata normal form. 13/168 useless extension candidates. Maximal degree in co-relation 416. Up to 89 conditions per place. [2024-11-23 23:44:50,426 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 21 selfloop transitions, 4 changer transitions 4/36 dead transitions. [2024-11-23 23:44:50,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 196 flow [2024-11-23 23:44:50,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 23:44:50,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-23 23:44:50,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2024-11-23 23:44:50,431 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 137 flow. Second operand 3 states and 62 transitions. [2024-11-23 23:44:50,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 196 flow [2024-11-23 23:44:50,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 182 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-23 23:44:50,437 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 106 flow [2024-11-23 23:44:50,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2024-11-23 23:44:50,438 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2024-11-23 23:44:50,440 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 106 flow [2024-11-23 23:44:50,441 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) [2024-11-23 23:44:50,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:50,441 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:50,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:44:50,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-23 23:44:50,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:50,442 INFO L85 PathProgramCache]: Analyzing trace with hash -281671669, now seen corresponding path program 1 times [2024-11-23 23:44:50,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:50,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600456668] [2024-11-23 23:44:50,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:50,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:50,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:50,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600456668] [2024-11-23 23:44:50,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600456668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:50,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:50,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:44:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091538903] [2024-11-23 23:44:50,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:50,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:44:50,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:50,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:44:50,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:50,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-11-23 23:44:50,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 23:44:50,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:50,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-11-23 23:44:50,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:50,888 INFO L124 PetriNetUnfolderBase]: 80/197 cut-off events. [2024-11-23 23:44:50,888 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-11-23 23:44:50,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 197 events. 80/197 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 579 event pairs, 26 based on Foata normal form. 8/184 useless extension candidates. Maximal degree in co-relation 493. Up to 74 conditions per place. [2024-11-23 23:44:50,891 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-11-23 23:44:50,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 216 flow [2024-11-23 23:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:44:50,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:44:50,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2024-11-23 23:44:50,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3872549019607843 [2024-11-23 23:44:50,897 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 106 flow. Second operand 6 states and 79 transitions. [2024-11-23 23:44:50,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 216 flow [2024-11-23 23:44:50,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 196 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 23:44:50,901 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-11-23 23:44:50,901 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-11-23 23:44:50,901 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2024-11-23 23:44:50,902 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-11-23 23:44:50,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 23:44:50,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-23 23:44:50,906 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-23 23:44:50,906 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-23 23:44:50,907 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-23 23:44:50,907 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-23 23:44:50,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:44:50,908 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-23 23:44:50,916 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 23:44:50,916 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:44:50,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:44:50 BasicIcfg [2024-11-23 23:44:50,922 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:44:50,923 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:44:50,923 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:44:50,923 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:44:50,928 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:44:48" (3/4) ... [2024-11-23 23:44:50,930 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:44:50,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-11-23 23:44:50,939 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2024-11-23 23:44:50,939 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-23 23:44:50,939 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-23 23:44:50,939 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:44:51,022 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:44:51,022 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:44:51,022 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:44:51,026 INFO L158 Benchmark]: Toolchain (without parser) took 3812.91ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 68.7MB in the end (delta: 22.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-23 23:44:51,026 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:44:51,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.89ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 70.7MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:44:51,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.68ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 68.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:44:51,028 INFO L158 Benchmark]: Boogie Preprocessor took 61.49ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:44:51,029 INFO L158 Benchmark]: RCFGBuilder took 664.49ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 41.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 23:44:51,030 INFO L158 Benchmark]: TraceAbstraction took 2415.24ms. Allocated memory is still 117.4MB. Free memory was 41.2MB in the beginning and 72.9MB in the end (delta: -31.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:44:51,030 INFO L158 Benchmark]: Witness Printer took 99.60ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 68.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:44:51,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.89ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 70.7MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.68ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 68.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.49ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 664.49ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 41.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2415.24ms. Allocated memory is still 117.4MB. Free memory was 41.2MB in the beginning and 72.9MB in the end (delta: -31.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 99.60ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 68.7MB 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 - 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, 50 locations, 5 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: 2.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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! [2024-11-23 23:44:51,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f26bfb-de16-4ec3-a61b-240c2a378d28/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