./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/sync01.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_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/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_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/sync01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/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_44ad0e1a-5e30-483f-8ca3-e229651973e8/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 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:26:27,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:26:27,236 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:26:27,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:26:27,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:26:27,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:26:27,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:26:27,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:26:27,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:26:27,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:26:27,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:26:27,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:26:27,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:26:27,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:26:27,304 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:26:27,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:26:27,305 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:26:27,306 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:26:27,306 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:26:27,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:26:27,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:26:27,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:26:27,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:27,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:26:27,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:26:27,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:26:27,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:26:27,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:27,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:26:27,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:26:27,309 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:26:27,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:26:27,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:26:27,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:26:27,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:26:27,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:26:27,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:26:27,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:26:27,310 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_44ad0e1a-5e30-483f-8ca3-e229651973e8/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 -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 [2024-11-27 20:26:27,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:26:27,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:26:27,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:26:27,758 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:26:27,759 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:26:27,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread/sync01.i [2024-11-27 20:26:30,960 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/data/1d9848544/2757e1467faa4dbeba29df3b4c5c6108/FLAG6c2d4709f [2024-11-27 20:26:31,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:26:31,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/sv-benchmarks/c/pthread/sync01.i [2024-11-27 20:26:31,373 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/data/1d9848544/2757e1467faa4dbeba29df3b4c5c6108/FLAG6c2d4709f [2024-11-27 20:26:31,391 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/data/1d9848544/2757e1467faa4dbeba29df3b4c5c6108 [2024-11-27 20:26:31,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:26:31,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:26:31,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:26:31,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:26:31,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:26:31,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f1348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31, skipping insertion in model container [2024-11-27 20:26:31,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:26:31,917 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_44ad0e1a-5e30-483f-8ca3-e229651973e8/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2024-11-27 20:26:31,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:26:31,964 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:26:32,059 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_44ad0e1a-5e30-483f-8ca3-e229651973e8/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2024-11-27 20:26:32,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:26:32,156 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:26:32,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32 WrapperNode [2024-11-27 20:26:32,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:26:32,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:26:32,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:26:32,160 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:26:32,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,220 INFO L138 Inliner]: procedures = 268, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 252 [2024-11-27 20:26:32,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:26:32,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:26:32,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:26:32,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:26:32,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,258 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]. [2024-11-27 20:26:32,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,271 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:26:32,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:26:32,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:26:32,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:26:32,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (1/1) ... [2024-11-27 20:26:32,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:32,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:32,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:26:32,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:26:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 20:26:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 20:26:32,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 20:26:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 20:26:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 20:26:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 20:26:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:26:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:26:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:26:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:26:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:26:32,385 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:26:32,622 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:26:32,625 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:26:33,171 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:26:33,172 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:26:35,409 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:26:35,409 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:26:35,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:35 BoogieIcfgContainer [2024-11-27 20:26:35,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:26:35,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:26:35,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:26:35,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:26:35,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:26:31" (1/3) ... [2024-11-27 20:26:35,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b6734f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:26:35, skipping insertion in model container [2024-11-27 20:26:35,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:32" (2/3) ... [2024-11-27 20:26:35,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b6734f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:26:35, skipping insertion in model container [2024-11-27 20:26:35,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:35" (3/3) ... [2024-11-27 20:26:35,424 INFO L128 eAbstractionObserver]: Analyzing ICFG sync01.i [2024-11-27 20:26:35,444 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:26:35,447 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sync01.i that has 3 procedures, 30 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-27 20:26:35,448 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:26:35,529 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 20:26:35,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 78 flow [2024-11-27 20:26:35,647 INFO L124 PetriNetUnfolderBase]: 3/30 cut-off events. [2024-11-27 20:26:35,650 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:26:35,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 3/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-11-27 20:26:35,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 78 flow [2024-11-27 20:26:35,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 27 transitions, 66 flow [2024-11-27 20:26:35,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:26:35,702 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;@292be631, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:26:35,702 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-27 20:26:35,736 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:26:35,737 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-11-27 20:26:35,737 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:26:35,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:26:35,738 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:35,739 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 20:26:35,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:35,748 INFO L85 PathProgramCache]: Analyzing trace with hash -755469591, now seen corresponding path program 1 times [2024-11-27 20:26:35,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:35,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264559001] [2024-11-27 20:26:35,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:35,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:26:37,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:37,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264559001] [2024-11-27 20:26:37,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264559001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:26:37,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:26:37,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:26:37,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070593180] [2024-11-27 20:26:37,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:26:37,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:26:37,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:37,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:26:37,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:26:37,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2024-11-27 20:26:37,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-11-27 20:26:37,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:26:37,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2024-11-27 20:26:37,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:26:37,334 INFO L124 PetriNetUnfolderBase]: 89/175 cut-off events. [2024-11-27 20:26:37,334 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-27 20:26:37,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 175 events. 89/175 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 570 event pairs, 32 based on Foata normal form. 10/177 useless extension candidates. Maximal degree in co-relation 324. Up to 113 conditions per place. [2024-11-27 20:26:37,339 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 20 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2024-11-27 20:26:37,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 112 flow [2024-11-27 20:26:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:26:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:26:37,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-11-27 20:26:37,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-27 20:26:37,361 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 66 flow. Second operand 3 states and 48 transitions. [2024-11-27 20:26:37,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 112 flow [2024-11-27 20:26:37,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 104 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 20:26:37,374 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 60 flow [2024-11-27 20:26:37,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2024-11-27 20:26:37,384 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2024-11-27 20:26:37,384 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 60 flow [2024-11-27 20:26:37,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-11-27 20:26:37,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:26:37,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:37,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:26:37,386 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 20:26:37,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:37,387 INFO L85 PathProgramCache]: Analyzing trace with hash -645966087, now seen corresponding path program 2 times [2024-11-27 20:26:37,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:37,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791608794] [2024-11-27 20:26:37,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:26:37,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:37,841 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:26:37,841 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:26:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:26:38,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:38,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791608794] [2024-11-27 20:26:38,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791608794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:26:38,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:26:38,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:26:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703590724] [2024-11-27 20:26:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:26:38,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:26:38,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:38,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:26:38,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:26:38,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-27 20:26:38,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-27 20:26:38,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:26:38,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-27 20:26:38,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:26:38,537 INFO L124 PetriNetUnfolderBase]: 61/143 cut-off events. [2024-11-27 20:26:38,539 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-27 20:26:38,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 143 events. 61/143 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 429 event pairs, 12 based on Foata normal form. 19/160 useless extension candidates. Maximal degree in co-relation 129. Up to 61 conditions per place. [2024-11-27 20:26:38,541 INFO L140 encePairwiseOnDemand]: 22/32 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-11-27 20:26:38,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 35 transitions, 147 flow [2024-11-27 20:26:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:26:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:26:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2024-11-27 20:26:38,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4114583333333333 [2024-11-27 20:26:38,545 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 60 flow. Second operand 6 states and 79 transitions. [2024-11-27 20:26:38,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 35 transitions, 147 flow [2024-11-27 20:26:38,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:26:38,547 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2024-11-27 20:26:38,547 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2024-11-27 20:26:38,548 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2024-11-27 20:26:38,548 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2024-11-27 20:26:38,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-27 20:26:38,552 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-27 20:26:38,552 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-27 20:26:38,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-27 20:26:38,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:26:38,553 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2024-11-27 20:26:38,558 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 20:26:38,562 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:26:38,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:26:38 BasicIcfg [2024-11-27 20:26:38,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:26:38,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:26:38,576 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:26:38,576 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:26:38,577 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:35" (3/4) ... [2024-11-27 20:26:38,580 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:26:38,586 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-27 20:26:38,590 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-27 20:26:38,600 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 248 nodes and edges [2024-11-27 20:26:38,600 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-27 20:26:38,601 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 20:26:38,601 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 20:26:38,723 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:26:38,724 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:26:38,724 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:26:38,725 INFO L158 Benchmark]: Toolchain (without parser) took 7329.15ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 116.8MB in the beginning and 307.6MB in the end (delta: -190.9MB). Peak memory consumption was 90.7MB. Max. memory is 16.1GB. [2024-11-27 20:26:38,726 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:26:38,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 761.83ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 86.8MB in the end (delta: 29.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 20:26:38,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.53ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 84.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:26:38,727 INFO L158 Benchmark]: Boogie Preprocessor took 64.35ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 81.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:26:38,727 INFO L158 Benchmark]: RCFGBuilder took 3124.66ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 81.1MB in the beginning and 334.5MB in the end (delta: -253.4MB). Peak memory consumption was 240.6MB. Max. memory is 16.1GB. [2024-11-27 20:26:38,728 INFO L158 Benchmark]: TraceAbstraction took 3161.17ms. Allocated memory is still 427.8MB. Free memory was 334.5MB in the beginning and 316.0MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-27 20:26:38,728 INFO L158 Benchmark]: Witness Printer took 148.74ms. Allocated memory is still 427.8MB. Free memory was 316.0MB in the beginning and 307.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:26:38,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 761.83ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 86.8MB in the end (delta: 29.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.53ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 84.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.35ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 81.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 3124.66ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 81.1MB in the beginning and 334.5MB in the end (delta: -253.4MB). Peak memory consumption was 240.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3161.17ms. Allocated memory is still 427.8MB. Free memory was 334.5MB in the beginning and 316.0MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Witness Printer took 148.74ms. Allocated memory is still 427.8MB. Free memory was 316.0MB in the beginning and 307.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 966]: 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 5 procedures, 50 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 4 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2024-11-27 20:26:38,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad0e1a-5e30-483f-8ca3-e229651973e8/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