./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/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_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/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_41628707-eba5-403e-afba-9268badf9279/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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:01:09,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:01:09,738 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:01:09,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:01:09,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:01:09,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:01:09,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:01:09,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:01:09,787 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:01:09,787 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:01:09,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:01:09,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:01:09,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:01:09,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:01:09,789 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:01:09,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:01:09,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:01:09,789 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:01:09,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:01:09,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:01:09,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:01:09,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:01:09,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:01:09,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:01:09,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:01:09,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:01:09,790 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:01:09,790 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:01:09,790 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:01:09,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:01:09,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:01:09,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:01:09,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:01:09,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:01:09,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:01:09,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:01:09,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:01:09,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:01:09,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:01:09,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:01:09,793 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:01:09,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:01:09,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:01:09,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:01:09,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:01:09,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:01:09,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:01:09,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:01:09,795 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_41628707-eba5-403e-afba-9268badf9279/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 -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2024-11-28 03:01:10,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:01:10,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:01:10,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:01:10,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:01:10,120 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:01:10,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-28 03:01:13,118 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/data/b4262118c/0d41edd30cc8453f9ed3e302387a2b32/FLAG82000f85a [2024-11-28 03:01:13,572 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:01:13,573 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-28 03:01:13,598 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/data/b4262118c/0d41edd30cc8453f9ed3e302387a2b32/FLAG82000f85a [2024-11-28 03:01:13,685 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/data/b4262118c/0d41edd30cc8453f9ed3e302387a2b32 [2024-11-28 03:01:13,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:01:13,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:01:13,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:01:13,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:01:13,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:01:13,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:13" (1/1) ... [2024-11-28 03:01:13,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2762875b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:13, skipping insertion in model container [2024-11-28 03:01:13,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:13" (1/1) ... [2024-11-28 03:01:13,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:01:14,421 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_41628707-eba5-403e-afba-9268badf9279/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2024-11-28 03:01:14,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:01:14,496 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:01:14,617 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_41628707-eba5-403e-afba-9268badf9279/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2024-11-28 03:01:14,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:01:14,772 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:01:14,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14 WrapperNode [2024-11-28 03:01:14,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:01:14,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:01:14,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:01:14,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:01:14,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,875 INFO L138 Inliner]: procedures = 429, calls = 134, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 462 [2024-11-28 03:01:14,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:01:14,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:01:14,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:01:14,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:01:14,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,911 INFO L175 MemorySlicer]: Split 78 memory accesses to 6 slices as follows [2, 5, 58, 5, 6, 2]. 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, 3, 17, 3, 2, 1]. [2024-11-28 03:01:14,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,939 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:01:14,957 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:01:14,957 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:01:14,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:01:14,962 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (1/1) ... [2024-11-28 03:01:14,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:01:14,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:15,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:01:15,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41628707-eba5-403e-afba-9268badf9279/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:01:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2024-11-28 03:01:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2024-11-28 03:01:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:01:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:01:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:01:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:01:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:01:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 03:01:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2024-11-28 03:01:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:01:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:01:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:01:15,048 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 03:01:15,334 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:01:15,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:01:16,217 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:01:16,217 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:01:16,998 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:01:16,999 INFO L312 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-28 03:01:17,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:16 BoogieIcfgContainer [2024-11-28 03:01:17,000 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:01:17,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:01:17,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:01:17,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:01:17,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:13" (1/3) ... [2024-11-28 03:01:17,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7919de32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:17, skipping insertion in model container [2024-11-28 03:01:17,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:14" (2/3) ... [2024-11-28 03:01:17,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7919de32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:17, skipping insertion in model container [2024-11-28 03:01:17,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:16" (3/3) ... [2024-11-28 03:01:17,016 INFO L128 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2024-11-28 03:01:17,040 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:01:17,044 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bounded_buffer.i that has 3 procedures, 81 locations, 1 initial locations, 13 loop locations, and 3 error locations. [2024-11-28 03:01:17,044 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:01:17,204 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 03:01:17,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 114 transitions, 248 flow [2024-11-28 03:01:17,461 INFO L124 PetriNetUnfolderBase]: 76/264 cut-off events. [2024-11-28 03:01:17,463 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-28 03:01:17,476 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 1203 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. [2024-11-28 03:01:17,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 114 transitions, 248 flow [2024-11-28 03:01:17,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 114 transitions, 248 flow [2024-11-28 03:01:17,495 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:01:17,516 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;@502e2d7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:01:17,516 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 03:01:17,553 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:01:17,553 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-28 03:01:17,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:01:17,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:01:17,554 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-28 03:01:17,555 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-28 03:01:17,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:17,563 INFO L85 PathProgramCache]: Analyzing trace with hash 397209913, now seen corresponding path program 1 times [2024-11-28 03:01:17,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:17,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269811159] [2024-11-28 03:01:17,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:17,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:01:17,982 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:01:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:01:18,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:01:18,131 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:01:18,133 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-28 03:01:18,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 8 remaining) [2024-11-28 03:01:18,137 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-11-28 03:01:18,137 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-28 03:01:18,137 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 8 remaining) [2024-11-28 03:01:18,137 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 8 remaining) [2024-11-28 03:01:18,139 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-11-28 03:01:18,139 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 8 remaining) [2024-11-28 03:01:18,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:01:18,141 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 03:01:18,148 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:01:18,149 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:01:18,332 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-28 03:01:18,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 186 transitions, 416 flow [2024-11-28 03:01:18,647 INFO L124 PetriNetUnfolderBase]: 293/919 cut-off events. [2024-11-28 03:01:18,647 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-28 03:01:18,661 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 5492 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. [2024-11-28 03:01:18,661 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 186 transitions, 416 flow [2024-11-28 03:01:18,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 186 transitions, 416 flow [2024-11-28 03:01:18,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:01:18,682 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;@502e2d7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:01:18,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-28 03:01:18,705 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:01:18,705 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-11-28 03:01:18,705 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:01:18,706 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:01:18,706 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:18,706 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)] === [2024-11-28 03:01:18,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:18,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1317967973, now seen corresponding path program 1 times [2024-11-28 03:01:18,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:18,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612424102] [2024-11-28 03:01:18,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:18,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:21,011 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 03:01:21,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:21,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612424102] [2024-11-28 03:01:21,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612424102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:01:21,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:01:21,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:01:21,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164277006] [2024-11-28 03:01:21,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:01:21,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:01:21,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:21,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:01:21,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:01:21,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 186 [2024-11-28 03:01:21,164 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) [2024-11-28 03:01:21,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:01:21,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 186 [2024-11-28 03:01:21,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand