./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU --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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:08:38,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:08:38,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:08:38,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:08:38,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:08:38,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:08:38,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:08:38,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:08:38,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:08:38,197 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:08:38,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:08:38,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:08:38,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:08:38,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:08:38,202 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:08:38,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:08:38,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:08:38,203 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:08:38,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:08:38,204 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:08:38,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:08:38,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:08:38,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:08:38,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:08:38,210 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:08:38,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:08:38,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:08:38,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:08:38,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:08:38,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:08:38,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:08:38,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:08:38,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:38,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:08:38,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:08:38,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:08:38,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:08:38,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:08:38,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:08:38,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:08:38,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:08:38,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:08:38,216 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2024-10-31 22:08:38,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:08:38,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:08:38,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:08:38,592 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:08:38,592 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:08:38,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i Unable to find full path for "g++" [2024-10-31 22:08:41,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:08:41,522 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:08:41,523 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-10-31 22:08:41,557 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/data/8089f3452/d2f2c2c2549742d0a7f59573d99dfc9f/FLAGaf482f17d [2024-10-31 22:08:41,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/data/8089f3452/d2f2c2c2549742d0a7f59573d99dfc9f [2024-10-31 22:08:41,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:08:41,668 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:08:41,670 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:41,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:08:41,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:08:41,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:41" (1/1) ... [2024-10-31 22:08:41,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768bbaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:41, skipping insertion in model container [2024-10-31 22:08:41,679 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:41" (1/1) ... [2024-10-31 22:08:41,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:08:42,740 WARN L251 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_0e514be4-e704-461b-8b41-5dc320c19f2f/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2024-10-31 22:08:42,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:42,829 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:08:42,955 WARN L251 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_0e514be4-e704-461b-8b41-5dc320c19f2f/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2024-10-31 22:08:42,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:43,152 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:08:43,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43 WrapperNode [2024-10-31 22:08:43,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:43,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:43,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:08:43,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:08:43,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,243 INFO L138 Inliner]: procedures = 429, calls = 134, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 473 [2024-10-31 22:08:43,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:43,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:08:43,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:08:43,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:08:43,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,267 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,305 INFO L175 MemorySlicer]: Split 78 memory accesses to 6 slices as follows [2, 2, 58, 6, 5, 5]. 74 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 26 writes are split as follows [0, 1, 17, 2, 3, 3]. [2024-10-31 22:08:43,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:08:43,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:08:43,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:08:43,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:08:43,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (1/1) ... [2024-10-31 22:08:43,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:43,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:43,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:08:43,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e514be4-e704-461b-8b41-5dc320c19f2f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:08:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2024-10-31 22:08:43,439 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2024-10-31 22:08:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:08:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:08:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:08:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:08:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:08:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-31 22:08:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-31 22:08:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:08:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:08:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:08:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:08:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:08:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:08:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:08:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-31 22:08:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-31 22:08:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:08:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:08:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:08:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:08:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:08:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:08:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:08:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-31 22:08:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-31 22:08:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2024-10-31 22:08:43,446 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2024-10-31 22:08:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:08:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:08:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:08:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:08:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:08:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-31 22:08:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-31 22:08:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:08:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:08:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:08:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:08:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:08:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:08:43,452 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:08:43,736 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:08:43,739 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:08:44,651 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:08:44,651 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:08:45,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:08:45,341 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-10-31 22:08:45,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:45 BoogieIcfgContainer [2024-10-31 22:08:45,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:08:45,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:08:45,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:08:45,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:08:45,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:08:41" (1/3) ... [2024-10-31 22:08:45,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c24da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:45, skipping insertion in model container [2024-10-31 22:08:45,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:43" (2/3) ... [2024-10-31 22:08:45,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c24da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:45, skipping insertion in model container [2024-10-31 22:08:45,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:45" (3/3) ... [2024-10-31 22:08:45,358 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2024-10-31 22:08:45,380 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:08:45,380 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-31 22:08:45,380 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:08:45,490 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:08:45,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 114 transitions, 248 flow [2024-10-31 22:08:45,672 INFO L124 PetriNetUnfolderBase]: 76/264 cut-off events. [2024-10-31 22:08:45,672 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:08:45,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 264 events. 76/264 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1180 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 146. Up to 16 conditions per place. [2024-10-31 22:08:45,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 114 transitions, 248 flow [2024-10-31 22:08:45,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 114 transitions, 248 flow [2024-10-31 22:08:45,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:08:45,711 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;@6011b79b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:08:45,712 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:08:45,731 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:08:45,731 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-31 22:08:45,731 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:08:45,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:45,732 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-31 22:08:45,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-31 22:08:45,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:45,740 INFO L85 PathProgramCache]: Analyzing trace with hash 516346199, now seen corresponding path program 1 times [2024-10-31 22:08:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:45,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733949318] [2024-10-31 22:08:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:45,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:08:46,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:08:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:08:46,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:08:46,263 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:08:46,264 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-10-31 22:08:46,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 8 remaining) [2024-10-31 22:08:46,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-10-31 22:08:46,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-10-31 22:08:46,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 8 remaining) [2024-10-31 22:08:46,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 8 remaining) [2024-10-31 22:08:46,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-10-31 22:08:46,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 8 remaining) [2024-10-31 22:08:46,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:08:46,272 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-31 22:08:46,276 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:08:46,276 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:08:46,458 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-31 22:08:46,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 186 transitions, 416 flow [2024-10-31 22:08:46,730 INFO L124 PetriNetUnfolderBase]: 293/919 cut-off events. [2024-10-31 22:08:46,730 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-31 22:08:46,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 919 events. 293/919 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5540 event pairs, 1 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 533. Up to 64 conditions per place. [2024-10-31 22:08:46,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 186 transitions, 416 flow [2024-10-31 22:08:46,760 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 186 transitions, 416 flow [2024-10-31 22:08:46,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:08:46,763 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;@6011b79b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:08:46,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-31 22:08:46,781 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:08:46,782 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-10-31 22:08:46,782 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:08:46,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:46,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:46,782 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [consumer_routineErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 22:08:46,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:46,783 INFO L85 PathProgramCache]: Analyzing trace with hash -158174170, now seen corresponding path program 1 times [2024-10-31 22:08:46,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:46,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021766667] [2024-10-31 22:08:46,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:46,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:48,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:48,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021766667] [2024-10-31 22:08:48,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021766667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:48,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:48,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:48,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855498406] [2024-10-31 22:08:48,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:48,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:08:48,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:48,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:08:48,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:48,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 186 [2024-10-31 22:08:48,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 186 transitions, 416 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 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) [2024-10-31 22:08:48,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:48,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 186 [2024-10-31 22:08:48,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand