./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB --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 ab88d5d149a161a7149bad4a02dfeb168f970e6264d498d3725e0f24ecb8e5e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:56:18,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:56:18,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:56:18,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:56:18,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:56:18,854 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:56:18,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:56:18,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:56:18,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:56:18,856 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:56:18,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:56:18,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:56:18,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:56:18,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:56:18,857 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:56:18,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:56:18,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:56:18,857 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:56:18,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:56:18,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:56:18,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:56:18,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:56:18,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:56:18,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:56:18,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:56:18,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:56:18,860 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:56:18,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:56:18,861 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:56:18,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:56:18,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:56:18,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:56:18,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:18,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:56:18,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:56:18,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:56:18,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:56:18,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:18,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:56:18,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:56:18,863 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:56:18,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:56:18,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:56:18,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:56:18,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:56:18,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:56:18,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:56:18,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:56:18,864 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_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ab88d5d149a161a7149bad4a02dfeb168f970e6264d498d3725e0f24ecb8e5e3 [2024-11-28 04:56:19,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:56:19,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:56:19,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:56:19,270 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:56:19,270 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:56:19,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-11-28 04:56:22,891 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/data/9ff474992/3d934bbaf6a84fdf8580686fae401313/FLAGbaf4f0922 [2024-11-28 04:56:23,332 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:56:23,336 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-11-28 04:56:23,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/data/9ff474992/3d934bbaf6a84fdf8580686fae401313/FLAGbaf4f0922 [2024-11-28 04:56:23,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/data/9ff474992/3d934bbaf6a84fdf8580686fae401313 [2024-11-28 04:56:23,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:56:23,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:56:23,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:56:23,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:56:23,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:56:23,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:56:23" (1/1) ... [2024-11-28 04:56:23,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a58b75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:23, skipping insertion in model container [2024-11-28 04:56:23,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:56:23" (1/1) ... [2024-11-28 04:56:23,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:56:23,983 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_1746bec9-1494-4fa8-ada8-8ce4a11f9202/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[30145,30158] [2024-11-28 04:56:23,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:56:24,029 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:56:24,099 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_1746bec9-1494-4fa8-ada8-8ce4a11f9202/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[30145,30158] [2024-11-28 04:56:24,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:56:24,147 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:56:24,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24 WrapperNode [2024-11-28 04:56:24,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:56:24,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:56:24,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:56:24,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:56:24,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,193 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2024-11-28 04:56:24,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:56:24,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:56:24,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:56:24,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:56:24,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,208 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,226 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 11]. The 0 writes are split as follows [0, 0]. [2024-11-28 04:56:24,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,237 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:56:24,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:56:24,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:56:24,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:56:24,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (1/1) ... [2024-11-28 04:56:24,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:24,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:24,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:56:24,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:56:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-11-28 04:56:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-11-28 04:56:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:56:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-11-28 04:56:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-11-28 04:56:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-11-28 04:56:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:56:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:56:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:56:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:56:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-28 04:56:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-28 04:56:24,336 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:56:24,516 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:56:24,518 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:56:24,731 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:56:24,731 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:56:24,899 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:56:24,899 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:56:24,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:56:24 BoogieIcfgContainer [2024-11-28 04:56:24,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:56:24,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:56:24,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:56:24,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:56:24,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:56:23" (1/3) ... [2024-11-28 04:56:24,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8da0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:56:24, skipping insertion in model container [2024-11-28 04:56:24,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:24" (2/3) ... [2024-11-28 04:56:24,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8da0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:56:24, skipping insertion in model container [2024-11-28 04:56:24,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:56:24" (3/3) ... [2024-11-28 04:56:24,912 INFO L128 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2024-11-28 04:56:24,932 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:56:24,934 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG read_write_lock-1.i that has 3 procedures, 30 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:56:24,934 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:56:25,037 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 04:56:25,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 120 flow [2024-11-28 04:56:25,141 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-11-28 04:56:25,144 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 04:56:25,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 42 events. 2/42 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-28 04:56:25,149 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 46 transitions, 120 flow [2024-11-28 04:56:25,153 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 40 transitions, 101 flow [2024-11-28 04:56:25,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:56:25,178 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;@6fb0d85f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:56:25,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 04:56:25,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:56:25,196 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-11-28 04:56:25,196 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:56:25,197 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:56:25,198 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:25,199 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:56:25,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:25,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1231612407, now seen corresponding path program 1 times [2024-11-28 04:56:25,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:25,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949024948] [2024-11-28 04:56:25,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:25,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:25,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:25,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949024948] [2024-11-28 04:56:25,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949024948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:25,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:25,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416010976] [2024-11-28 04:56:25,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:25,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:56:25,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:25,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:56:25,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:56:25,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2024-11-28 04:56:25,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-11-28 04:56:25,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:56:25,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2024-11-28 04:56:25,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:56:28,071 INFO L124 PetriNetUnfolderBase]: 8977/13370 cut-off events. [2024-11-28 04:56:28,071 INFO L125 PetriNetUnfolderBase]: For 1098/1098 co-relation queries the response was YES. [2024-11-28 04:56:28,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26796 conditions, 13370 events. 8977/13370 cut-off events. For 1098/1098 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 85902 event pairs, 4476 based on Foata normal form. 790/13554 useless extension candidates. Maximal degree in co-relation 24273. Up to 7538 conditions per place. [2024-11-28 04:56:28,180 INFO L140 encePairwiseOnDemand]: 39/46 looper letters, 49 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2024-11-28 04:56:28,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 61 transitions, 264 flow [2024-11-28 04:56:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:56:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:56:28,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-11-28 04:56:28,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6739130434782609 [2024-11-28 04:56:28,206 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 101 flow. Second operand 3 states and 93 transitions. [2024-11-28 04:56:28,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 61 transitions, 264 flow [2024-11-28 04:56:28,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 61 transitions, 242 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-28 04:56:28,265 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 114 flow [2024-11-28 04:56:28,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-11-28 04:56:28,276 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-11-28 04:56:28,276 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 114 flow [2024-11-28 04:56:28,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-11-28 04:56:28,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:56:28,277 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:28,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:56:28,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:56:28,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash -765020605, now seen corresponding path program 1 times [2024-11-28 04:56:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:28,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494651633] [2024-11-28 04:56:28,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:28,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:28,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:28,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494651633] [2024-11-28 04:56:28,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494651633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:28,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:28,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:28,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268545748] [2024-11-28 04:56:28,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:28,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:56:28,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:28,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:56:28,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:56:28,657 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-28 04:56:28,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-28 04:56:28,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:56:28,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-28 04:56:28,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:56:28,925 INFO L124 PetriNetUnfolderBase]: 468/977 cut-off events. [2024-11-28 04:56:28,925 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-28 04:56:28,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 977 events. 468/977 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5585 event pairs, 72 based on Foata normal form. 698/1635 useless extension candidates. Maximal degree in co-relation 1287. Up to 686 conditions per place. [2024-11-28 04:56:28,934 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 30 selfloop transitions, 2 changer transitions 2/45 dead transitions. [2024-11-28 04:56:28,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 195 flow [2024-11-28 04:56:28,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:56:28,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:56:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-11-28 04:56:28,939 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2024-11-28 04:56:28,939 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 114 flow. Second operand 3 states and 82 transitions. [2024-11-28 04:56:28,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 195 flow [2024-11-28 04:56:28,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 185 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:56:28,946 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 103 flow [2024-11-28 04:56:28,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2024-11-28 04:56:28,949 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, -9 predicate places. [2024-11-28 04:56:28,949 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 103 flow [2024-11-28 04:56:28,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-28 04:56:28,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:56:28,950 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:28,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:56:28,950 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:56:28,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:28,952 INFO L85 PathProgramCache]: Analyzing trace with hash 954859745, now seen corresponding path program 2 times [2024-11-28 04:56:28,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:28,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804253411] [2024-11-28 04:56:28,953 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:28,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:28,995 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:56:28,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:29,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:29,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804253411] [2024-11-28 04:56:29,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804253411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:29,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:29,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:29,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727513102] [2024-11-28 04:56:29,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:29,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:56:29,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:29,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:56:29,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:56:29,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-28 04:56:29,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-28 04:56:29,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:56:29,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-28 04:56:29,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:56:29,245 INFO L124 PetriNetUnfolderBase]: 44/129 cut-off events. [2024-11-28 04:56:29,246 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-11-28 04:56:29,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 129 events. 44/129 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 468 event pairs, 4 based on Foata normal form. 60/181 useless extension candidates. Maximal degree in co-relation 219. Up to 92 conditions per place. [2024-11-28 04:56:29,248 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 18 selfloop transitions, 2 changer transitions 6/34 dead transitions. [2024-11-28 04:56:29,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 151 flow [2024-11-28 04:56:29,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:56:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:56:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-28 04:56:29,250 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2024-11-28 04:56:29,250 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 103 flow. Second operand 3 states and 72 transitions. [2024-11-28 04:56:29,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 151 flow [2024-11-28 04:56:29,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 141 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-28 04:56:29,252 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 69 flow [2024-11-28 04:56:29,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2024-11-28 04:56:29,253 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, -15 predicate places. [2024-11-28 04:56:29,253 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 69 flow [2024-11-28 04:56:29,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-28 04:56:29,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:56:29,254 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:29,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:56:29,254 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:56:29,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:29,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1071216268, now seen corresponding path program 1 times [2024-11-28 04:56:29,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:29,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138321387] [2024-11-28 04:56:29,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:29,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138321387] [2024-11-28 04:56:29,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138321387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:29,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:29,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:29,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353724904] [2024-11-28 04:56:29,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:29,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:56:29,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:29,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:56:29,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:56:29,346 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2024-11-28 04:56:29,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-28 04:56:29,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:56:29,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2024-11-28 04:56:29,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:56:29,408 INFO L124 PetriNetUnfolderBase]: 31/81 cut-off events. [2024-11-28 04:56:29,409 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-28 04:56:29,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 81 events. 31/81 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 223 event pairs, 15 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 200. Up to 45 conditions per place. [2024-11-28 04:56:29,409 INFO L140 encePairwiseOnDemand]: 44/46 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2024-11-28 04:56:29,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 113 flow [2024-11-28 04:56:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:56:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:56:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-11-28 04:56:29,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.391304347826087 [2024-11-28 04:56:29,412 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 69 flow. Second operand 3 states and 54 transitions. [2024-11-28 04:56:29,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 113 flow [2024-11-28 04:56:29,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 103 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-11-28 04:56:29,413 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2024-11-28 04:56:29,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2024-11-28 04:56:29,414 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, -21 predicate places. [2024-11-28 04:56:29,414 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2024-11-28 04:56:29,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-28 04:56:29,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-11-28 04:56:29,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2024-11-28 04:56:29,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-28 04:56:29,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-28 04:56:29,421 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-28 04:56:29,421 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-28 04:56:29,421 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-28 04:56:29,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:56:29,422 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-28 04:56:29,429 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:56:29,430 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:56:29,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:56:29 BasicIcfg [2024-11-28 04:56:29,436 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:56:29,438 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:56:29,438 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:56:29,439 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:56:29,440 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:56:24" (3/4) ... [2024-11-28 04:56:29,442 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:56:29,447 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2024-11-28 04:56:29,447 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2024-11-28 04:56:29,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-11-28 04:56:29,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 04:56:29,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 04:56:29,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:56:29,547 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:56:29,548 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:56:29,548 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:56:29,549 INFO L158 Benchmark]: Toolchain (without parser) took 6154.81ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 129.7MB in the beginning and 289.7MB in the end (delta: -160.0MB). Peak memory consumption was 172.4MB. Max. memory is 16.1GB. [2024-11-28 04:56:29,549 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:56:29,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.46ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 109.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:56:29,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.56ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 108.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:56:29,550 INFO L158 Benchmark]: Boogie Preprocessor took 55.39ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 106.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:56:29,550 INFO L158 Benchmark]: RCFGBuilder took 650.32ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 82.1MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:56:29,551 INFO L158 Benchmark]: TraceAbstraction took 4533.67ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 81.4MB in the beginning and 292.8MB in the end (delta: -211.4MB). Peak memory consumption was 122.1MB. Max. memory is 16.1GB. [2024-11-28 04:56:29,551 INFO L158 Benchmark]: Witness Printer took 109.94ms. Allocated memory is still 503.3MB. Free memory was 292.8MB in the beginning and 289.7MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:56:29,553 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.46ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 109.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.56ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 108.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.39ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 106.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 650.32ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 82.1MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4533.67ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 81.4MB in the beginning and 292.8MB in the end (delta: -211.4MB). Peak memory consumption was 122.1MB. Max. memory is 16.1GB. * Witness Printer took 109.94ms. Allocated memory is still 503.3MB. Free memory was 292.8MB in the beginning and 289.7MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 685]: 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 7 procedures, 64 locations, 7 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: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 4 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 0.7s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:56:29,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1746bec9-1494-4fa8-ada8-8ce4a11f9202/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE