./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:10:36,767 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:10:36,862 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 23:10:36,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:10:36,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:10:36,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:10:36,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:10:36,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:10:36,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:10:36,896 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:10:36,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:10:36,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:10:36,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:10:36,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:10:36,898 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:10:36,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:10:36,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:10:36,898 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:10:36,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:10:36,898 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:10:36,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:10:36,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:10:36,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:10:36,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:10:36,899 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:10:36,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:10:36,899 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:10:36,899 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:10:36,899 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:10:36,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:10:36,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:10:36,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:10:36,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:10:36,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:10:36,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:10:36,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:10:36,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:10:36,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:10:36,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:10:36,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:10:36,902 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:10:36,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:10:36,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 23:10:36,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:10:36,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:10:36,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:10:36,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:10:36,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:10:36,903 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_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03
[2024-11-23 23:10:37,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:10:37,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:10:37,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:10:37,232 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:10:37,233 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:10:37,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread/stateful01-1.i
[2024-11-23 23:10:40,418 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/data/0fc62bdea/688a1c884db74b75a4c1a600865431a5/FLAGdc04788f8
[2024-11-23 23:10:40,750 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:10:40,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/sv-benchmarks/c/pthread/stateful01-1.i
[2024-11-23 23:10:40,768 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/data/0fc62bdea/688a1c884db74b75a4c1a600865431a5/FLAGdc04788f8
[2024-11-23 23:10:40,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/data/0fc62bdea/688a1c884db74b75a4c1a600865431a5
[2024-11-23 23:10:40,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:10:40,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:10:40,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:10:40,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:10:40,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:10:40,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:10:40" (1/1) ...
[2024-11-23 23:10:40,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b46a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:40, skipping insertion in model container
[2024-11-23 23:10:40,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:10:40" (1/1) ...
[2024-11-23 23:10:40,861 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:10:41,334 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_22eba86e-e064-4e1c-99e6-224a71f8aa49/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839]
[2024-11-23 23:10:41,338 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:10:41,357 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:10:41,422 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_22eba86e-e064-4e1c-99e6-224a71f8aa49/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839]
[2024-11-23 23:10:41,423 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:10:41,484 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:10:41,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41 WrapperNode
[2024-11-23 23:10:41,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:10:41,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:10:41,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:10:41,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:10:41,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,587 INFO L138 Inliner]: procedures = 168, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50
[2024-11-23 23:10:41,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:10:41,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:10:41,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:10:41,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:10:41,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,629 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0].
[2024-11-23 23:10:41,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,638 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:10:41,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:10:41,647 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:10:41,647 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:10:41,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (1/1) ...
[2024-11-23 23:10:41,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:10:41,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:10:41,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:10:41,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:10:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-23 23:10:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-23 23:10:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-23 23:10:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-23 23:10:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-23 23:10:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:10:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:10:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-23 23:10:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-23 23:10:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-23 23:10:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:10:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:10:41,728 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-23 23:10:41,883 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:10:41,885 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:10:42,182 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-23 23:10:42,182 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:10:42,387 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:10:42,387 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-23 23:10:42,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:10:42 BoogieIcfgContainer
[2024-11-23 23:10:42,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:10:42,390 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:10:42,391 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:10:42,396 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:10:42,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:10:40" (1/3) ...
[2024-11-23 23:10:42,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e9517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:10:42, skipping insertion in model container
[2024-11-23 23:10:42,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:41" (2/3) ...
[2024-11-23 23:10:42,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e9517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:10:42, skipping insertion in model container
[2024-11-23 23:10:42,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:10:42" (3/3) ...
[2024-11-23 23:10:42,399 INFO L128 eAbstractionObserver]: Analyzing ICFG stateful01-1.i
[2024-11-23 23:10:42,416 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:10:42,418 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stateful01-1.i that has 3 procedures, 32 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2024-11-23 23:10:42,418 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-23 23:10:42,498 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-23 23:10:42,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 78 flow
[2024-11-23 23:10:42,584 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events.
[2024-11-23 23:10:42,588 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-23 23:10:42,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 1/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place.
[2024-11-23 23:10:42,593 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 32 transitions, 78 flow
[2024-11-23 23:10:42,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 27 transitions, 66 flow
[2024-11-23 23:10:42,609 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:10:42,632 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;@5e51b3c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:10:42,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2024-11-23 23:10:42,652 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-23 23:10:42,652 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events.
[2024-11-23 23:10:42,652 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-23 23:10:42,652 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:10:42,653 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, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:10:42,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-23 23:10:42,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:10:42,661 INFO L85 PathProgramCache]: Analyzing trace with hash -231772410, now seen corresponding path program 1 times
[2024-11-23 23:10:42,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:10:42,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418445342]
[2024-11-23 23:10:42,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:10:42,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:10:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:10:42,868 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 23:10:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:10:42,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-23 23:10:42,965 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-23 23:10:42,966 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2024-11-23 23:10:42,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining)
[2024-11-23 23:10:42,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining)
[2024-11-23 23:10:42,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 23:10:42,970 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-11-23 23:10:43,034 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-23 23:10:43,035 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 23:10:43,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:10:43 BasicIcfg
[2024-11-23 23:10:43,043 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 23:10:43,045 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 23:10:43,045 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 23:10:43,045 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 23:10:43,046 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:10:42" (3/4) ...
[2024-11-23 23:10:43,047 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-23 23:10:43,123 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 2.
[2024-11-23 23:10:43,174 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-23 23:10:43,175 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-23 23:10:43,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 23:10:43,177 INFO L158 Benchmark]: Toolchain (without parser) took 2377.90ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 58.0MB in the end (delta: 33.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB.
[2024-11-23 23:10:43,177 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:10:43,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.83ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 70.9MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 23:10:43,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.20ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:10:43,179 INFO L158 Benchmark]: Boogie Preprocessor took 58.53ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 67.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:10:43,179 INFO L158 Benchmark]: RCFGBuilder took 740.83ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 42.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-23 23:10:43,180 INFO L158 Benchmark]: TraceAbstraction took 653.15ms. Allocated memory is still 117.4MB. Free memory was 41.8MB in the beginning and 65.9MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:10:43,180 INFO L158 Benchmark]: Witness Printer took 130.47ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 58.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 23:10:43,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.72ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 687.83ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 70.9MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 98.20ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 58.53ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 67.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 740.83ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 42.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 653.15ms. Allocated memory is still 117.4MB. Free memory was 41.8MB in the beginning and 65.9MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 130.47ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 58.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 727]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L692] 0 pthread_mutex_t ma, mb;
[L693] 0 int data1, data2;
[L716] 0 pthread_t t1, t2;
[L719] 0 data1 = 10
[L720] 0 data2 = 10
[L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0)
VAL [\old(arg)={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1=0]
[L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0)
VAL [\old(arg)={0:0}, \old(arg)={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1=0, t2=1]
[L697] 1 data1++
VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}]
[L700] 1 data2++
VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}]
[L702] 1 return 0;
[L723] FCALL, JOIN 1 pthread_join(t1, 0)
VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1=0, t2=1]
[L707] 2 data1+=5
VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}]
[L710] 2 data2-=6
VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}]
[L712] 2 return 0;
[L724] FCALL, JOIN 2 pthread_join(t2, 0)
VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=0, t2=1]
[L725] COND TRUE 0 data1==16 && data2==5
VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=0, t2=1]
[L727] 0 reach_error()
VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=0, t2=1]
- UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message)
Unable to prove that petrification did provide enough thread instances (tool internal message)
Reason: Not analyzed.
- UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message)
Unable to prove that petrification did provide enough thread instances (tool internal message)
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 54 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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
RESULT: Ultimate proved your program to be incorrect!
[2024-11-23 23:10:43,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22eba86e-e064-4e1c-99e6-224a71f8aa49/bin/uautomizer-verify-LYvppIcaGC/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE