./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe020_power.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_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/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_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe020_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/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_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/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 cd91eb07499c204f7750c4a87fd11eb7780a100da5928fd001cd5e1a53feff12
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:06:19,461 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:06:19,553 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 00:06:19,563 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:06:19,564 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:06:19,603 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:06:19,604 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:06:19,604 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:06:19,604 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:06:19,604 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-24 00:06:19,604 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:06:19,604 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:06:19,605 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:06:19,606 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-24 00:06:19,607 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-24 00:06:19,607 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:06:19,607 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-24 00:06:19,607 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-24 00:06:19,608 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:06:19,609 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-24 00:06:19,609 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:06:19,609 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-24 00:06:19,609 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:06:19,609 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-24 00:06:19,609 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:06:19,610 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:06:19,610 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-24 00:06:19,610 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:06:19,610 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-24 00:06:19,610 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:06:19,610 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:06:19,610 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:06:19,610 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-24 00:06:19,610 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 00:06:19,610 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-24 00:06:19,611 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:06:19,611 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:06:19,611 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:06:19,611 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:06:19,611 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:06:19,611 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_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/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 -> cd91eb07499c204f7750c4a87fd11eb7780a100da5928fd001cd5e1a53feff12
[2024-11-24 00:06:19,933 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:06:19,945 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:06:19,947 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:06:19,948 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-24 00:06:19,949 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-24 00:06:19,950 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-wmm/safe020_power.i
[2024-11-24 00:06:23,106 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/data/6ad881e4e/0b95bc96c05f4edfa647b23779926457/FLAG21338dd46
[2024-11-24 00:06:23,486 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-24 00:06:23,487 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/sv-benchmarks/c/pthread-wmm/safe020_power.i
[2024-11-24 00:06:23,509 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/data/6ad881e4e/0b95bc96c05f4edfa647b23779926457/FLAG21338dd46
[2024-11-24 00:06:23,532 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/data/6ad881e4e/0b95bc96c05f4edfa647b23779926457
[2024-11-24 00:06:23,536 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:06:23,538 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:06:23,540 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:06:23,541 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:06:23,545 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:06:23,546 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:23" (1/1) ...
[2024-11-24 00:06:23,547 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b50b7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23, skipping insertion in model container
[2024-11-24 00:06:23,549 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:23" (1/1) ...
[2024-11-24 00:06:23,599 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:06:23,770 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_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/sv-benchmarks/c/pthread-wmm/safe020_power.i[990,1003]
[2024-11-24 00:06:24,004 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:06:24,015 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-24 00:06:24,027 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_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/sv-benchmarks/c/pthread-wmm/safe020_power.i[990,1003]
[2024-11-24 00:06:24,103 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:06:24,152 INFO  L204         MainTranslator]: Completed translation
[2024-11-24 00:06:24,153 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24 WrapperNode
[2024-11-24 00:06:24,154 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:06:24,155 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:06:24,155 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:06:24,155 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:06:24,163 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,181 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,204 INFO  L138                Inliner]: procedures = 175, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165
[2024-11-24 00:06:24,204 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:06:24,205 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:06:24,205 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:06:24,205 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:06:24,217 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,218 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,222 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,241 INFO  L175           MemorySlicer]: Split 24 memory accesses to 2 slices as follows [2, 22]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 7 writes are split as follows [0, 7].
[2024-11-24 00:06:24,241 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,241 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,251 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,253 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,256 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,258 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,260 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,264 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:06:24,265 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:06:24,266 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:06:24,266 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:06:24,267 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (1/1) ...
[2024-11-24 00:06:24,273 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:06:24,298 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:06:24,313 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:06:24,317 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:06:24,343 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 00:06:24,345 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-24 00:06:24,345 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-24 00:06:24,345 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-24 00:06:24,346 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-24 00:06:24,346 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:06:24,346 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2024-11-24 00:06:24,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2024-11-24 00:06:24,346 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2024-11-24 00:06:24,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2024-11-24 00:06:24,346 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2024-11-24 00:06:24,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2024-11-24 00:06:24,347 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:06:24,348 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-24 00:06:24,349 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-24 00:06:24,349 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:06:24,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:06:24,351 WARN  L203             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-24 00:06:24,559 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-24 00:06:24,561 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:06:25,214 INFO  L279             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-24 00:06:25,214 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-24 00:06:25,774 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:06:25,774 INFO  L312             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-24 00:06:25,774 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:25 BoogieIcfgContainer
[2024-11-24 00:06:25,774 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:06:25,777 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:06:25,778 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:06:25,782 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:06:25,782 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:06:23" (1/3) ...
[2024-11-24 00:06:25,783 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4c0519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:25, skipping insertion in model container
[2024-11-24 00:06:25,783 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:24" (2/3) ...
[2024-11-24 00:06:25,784 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4c0519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:25, skipping insertion in model container
[2024-11-24 00:06:25,785 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:25" (3/3) ...
[2024-11-24 00:06:25,786 INFO  L128   eAbstractionObserver]: Analyzing ICFG safe020_power.i
[2024-11-24 00:06:25,804 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:06:25,806 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG safe020_power.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-11-24 00:06:25,806 INFO  L491   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-24 00:06:25,917 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-24 00:06:25,959 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 90 flow
[2024-11-24 00:06:25,994 INFO  L124   PetriNetUnfolderBase]: 1/36 cut-off events.
[2024-11-24 00:06:25,996 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-24 00:06:26,000 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. 
[2024-11-24 00:06:26,000 INFO  L82        GeneralOperation]: Start removeDead. Operand has 48 places, 39 transitions, 90 flow
[2024-11-24 00:06:26,005 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 45 places, 36 transitions, 81 flow
[2024-11-24 00:06:26,020 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:06:26,039 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;@123cd562, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:06:26,039 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2024-11-24 00:06:26,050 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-24 00:06:26,050 INFO  L124   PetriNetUnfolderBase]: 0/10 cut-off events.
[2024-11-24 00:06:26,050 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-24 00:06:26,050 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:06:26,051 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-24 00:06:26,052 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2024-11-24 00:06:26,058 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:26,058 INFO  L85        PathProgramCache]: Analyzing trace with hash 472595952, now seen corresponding path program 1 times
[2024-11-24 00:06:26,067 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:06:26,067 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124225310]
[2024-11-24 00:06:26,067 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:26,068 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:06:26,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:26,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:06:26,703 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:06:26,703 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124225310]
[2024-11-24 00:06:26,704 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124225310] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:06:26,704 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:06:26,704 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-24 00:06:26,709 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938253477]
[2024-11-24 00:06:26,710 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:06:26,717 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:06:26,721 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:06:26,748 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:06:26,748 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:06:26,750 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39
[2024-11-24 00:06:26,753 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 81 flow. Second operand  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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)
[2024-11-24 00:06:26,753 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:06:26,753 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39
[2024-11-24 00:06:26,754 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:06:27,466 INFO  L124   PetriNetUnfolderBase]: 719/1241 cut-off events.
[2024-11-24 00:06:27,466 INFO  L125   PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES.
[2024-11-24 00:06:27,472 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2364 conditions, 1241 events. 719/1241 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7743 event pairs, 116 based on Foata normal form. 48/1267 useless extension candidates. Maximal degree in co-relation 2353. Up to 874 conditions per place. 
[2024-11-24 00:06:27,486 INFO  L140   encePairwiseOnDemand]: 35/39 looper letters, 29 selfloop transitions, 2 changer transitions 2/47 dead transitions.
[2024-11-24 00:06:27,487 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 47 transitions, 172 flow
[2024-11-24 00:06:27,489 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 00:06:27,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:06:27,503 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions.
[2024-11-24 00:06:27,505 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.7435897435897436
[2024-11-24 00:06:27,509 INFO  L175             Difference]: Start difference. First operand has 45 places, 36 transitions, 81 flow. Second operand 3 states and 87 transitions.
[2024-11-24 00:06:27,510 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 47 transitions, 172 flow
[2024-11-24 00:06:27,515 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 47 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-24 00:06:27,521 INFO  L231             Difference]: Finished difference. Result has 43 places, 33 transitions, 76 flow
[2024-11-24 00:06:27,524 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=43, PETRI_TRANSITIONS=33}
[2024-11-24 00:06:27,529 INFO  L279   CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places.
[2024-11-24 00:06:27,529 INFO  L471      AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 76 flow
[2024-11-24 00:06:27,529 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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)
[2024-11-24 00:06:27,529 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:06:27,529 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:06:27,529 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:06:27,530 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2024-11-24 00:06:27,531 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:27,531 INFO  L85        PathProgramCache]: Analyzing trace with hash -1328443949, now seen corresponding path program 1 times
[2024-11-24 00:06:27,531 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:06:27,531 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072665046]
[2024-11-24 00:06:27,531 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:27,532 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:06:27,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:27,978 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:06:27,978 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:06:27,979 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072665046]
[2024-11-24 00:06:27,979 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072665046] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:06:27,979 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:06:27,979 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:06:27,979 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666916887]
[2024-11-24 00:06:27,979 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:06:27,980 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:06:27,981 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:06:27,983 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:06:27,983 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:06:27,995 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39
[2024-11-24 00:06:27,996 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 76 flow. Second operand  has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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)
[2024-11-24 00:06:27,996 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:06:27,996 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39
[2024-11-24 00:06:27,996 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:06:28,794 INFO  L124   PetriNetUnfolderBase]: 1497/2516 cut-off events.
[2024-11-24 00:06:28,794 INFO  L125   PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES.
[2024-11-24 00:06:28,803 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 4964 conditions, 2516 events. 1497/2516 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 15571 event pairs, 186 based on Foata normal form. 100/2523 useless extension candidates. Maximal degree in co-relation 4954. Up to 1316 conditions per place. 
[2024-11-24 00:06:28,814 INFO  L140   encePairwiseOnDemand]: 33/39 looper letters, 42 selfloop transitions, 5 changer transitions 1/58 dead transitions.
[2024-11-24 00:06:28,814 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 230 flow
[2024-11-24 00:06:28,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-24 00:06:28,815 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 00:06:28,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions.
[2024-11-24 00:06:28,817 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.6538461538461539
[2024-11-24 00:06:28,817 INFO  L175             Difference]: Start difference. First operand has 43 places, 33 transitions, 76 flow. Second operand 4 states and 102 transitions.
[2024-11-24 00:06:28,817 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 230 flow
[2024-11-24 00:06:28,818 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-24 00:06:28,822 INFO  L231             Difference]: Finished difference. Result has 45 places, 36 transitions, 106 flow
[2024-11-24 00:06:28,822 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=36}
[2024-11-24 00:06:28,823 INFO  L279   CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places.
[2024-11-24 00:06:28,823 INFO  L471      AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 106 flow
[2024-11-24 00:06:28,823 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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)
[2024-11-24 00:06:28,823 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:06:28,823 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:06:28,823 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 00:06:28,824 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2024-11-24 00:06:28,825 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:28,826 INFO  L85        PathProgramCache]: Analyzing trace with hash -1367798484, now seen corresponding path program 1 times
[2024-11-24 00:06:28,826 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:06:28,826 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717199673]
[2024-11-24 00:06:28,826 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:28,827 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:06:28,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:29,260 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:06:29,260 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:06:29,261 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717199673]
[2024-11-24 00:06:29,261 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717199673] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:06:29,261 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:06:29,261 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:06:29,261 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661575075]
[2024-11-24 00:06:29,261 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:06:29,261 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:06:29,262 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:06:29,262 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:06:29,262 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:06:29,272 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39
[2024-11-24 00:06:29,273 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 106 flow. Second operand  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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)
[2024-11-24 00:06:29,274 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:06:29,274 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39
[2024-11-24 00:06:29,274 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:06:29,931 INFO  L124   PetriNetUnfolderBase]: 960/1625 cut-off events.
[2024-11-24 00:06:29,931 INFO  L125   PetriNetUnfolderBase]: For 427/427 co-relation queries the response was YES.
[2024-11-24 00:06:29,938 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 1625 events. 960/1625 cut-off events. For 427/427 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 8805 event pairs, 98 based on Foata normal form. 82/1656 useless extension candidates. Maximal degree in co-relation 3712. Up to 581 conditions per place. 
[2024-11-24 00:06:29,946 INFO  L140   encePairwiseOnDemand]: 33/39 looper letters, 53 selfloop transitions, 8 changer transitions 1/72 dead transitions.
[2024-11-24 00:06:29,946 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 72 transitions, 323 flow
[2024-11-24 00:06:29,947 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-24 00:06:29,947 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:06:29,948 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions.
[2024-11-24 00:06:29,948 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.6615384615384615
[2024-11-24 00:06:29,948 INFO  L175             Difference]: Start difference. First operand has 45 places, 36 transitions, 106 flow. Second operand 5 states and 129 transitions.
[2024-11-24 00:06:29,948 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 72 transitions, 323 flow
[2024-11-24 00:06:29,950 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 72 transitions, 313 flow, removed 1 selfloop flow, removed 2 redundant places.
[2024-11-24 00:06:29,951 INFO  L231             Difference]: Finished difference. Result has 49 places, 39 transitions, 146 flow
[2024-11-24 00:06:29,951 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=146, PETRI_PLACES=49, PETRI_TRANSITIONS=39}
[2024-11-24 00:06:29,952 INFO  L279   CegarLoopForPetriNet]: 45 programPoint places, 4 predicate places.
[2024-11-24 00:06:29,952 INFO  L471      AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 146 flow
[2024-11-24 00:06:29,953 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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)
[2024-11-24 00:06:29,953 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:06:29,953 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]
[2024-11-24 00:06:29,953 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 00:06:29,953 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2024-11-24 00:06:29,954 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:29,954 INFO  L85        PathProgramCache]: Analyzing trace with hash -1294515723, now seen corresponding path program 1 times
[2024-11-24 00:06:29,954 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:06:29,954 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210904246]
[2024-11-24 00:06:29,954 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:29,955 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:06:30,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:30,622 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:06:30,623 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:06:30,623 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210904246]
[2024-11-24 00:06:30,623 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210904246] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:06:30,623 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:06:30,623 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 00:06:30,624 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742120645]
[2024-11-24 00:06:30,624 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:06:30,624 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-24 00:06:30,624 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:06:30,625 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-24 00:06:30,625 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:06:30,632 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39
[2024-11-24 00:06:30,633 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 146 flow. Second operand  has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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)
[2024-11-24 00:06:30,633 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:06:30,634 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39
[2024-11-24 00:06:30,634 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:06:31,091 INFO  L124   PetriNetUnfolderBase]: 567/934 cut-off events.
[2024-11-24 00:06:31,091 INFO  L125   PetriNetUnfolderBase]: For 762/762 co-relation queries the response was YES.
[2024-11-24 00:06:31,117 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2442 conditions, 934 events. 567/934 cut-off events. For 762/762 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4260 event pairs, 81 based on Foata normal form. 40/955 useless extension candidates. Maximal degree in co-relation 2428. Up to 308 conditions per place. 
[2024-11-24 00:06:31,121 INFO  L140   encePairwiseOnDemand]: 33/39 looper letters, 46 selfloop transitions, 11 changer transitions 1/68 dead transitions.
[2024-11-24 00:06:31,122 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 330 flow
[2024-11-24 00:06:31,123 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-24 00:06:31,123 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-24 00:06:31,125 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions.
[2024-11-24 00:06:31,126 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5897435897435898
[2024-11-24 00:06:31,126 INFO  L175             Difference]: Start difference. First operand has 49 places, 39 transitions, 146 flow. Second operand 6 states and 138 transitions.
[2024-11-24 00:06:31,126 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 330 flow
[2024-11-24 00:06:31,133 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 68 transitions, 305 flow, removed 4 selfloop flow, removed 4 redundant places.
[2024-11-24 00:06:31,134 INFO  L231             Difference]: Finished difference. Result has 52 places, 39 transitions, 160 flow
[2024-11-24 00:06:31,134 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=52, PETRI_TRANSITIONS=39}
[2024-11-24 00:06:31,137 INFO  L279   CegarLoopForPetriNet]: 45 programPoint places, 7 predicate places.
[2024-11-24 00:06:31,137 INFO  L471      AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 160 flow
[2024-11-24 00:06:31,138 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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)
[2024-11-24 00:06:31,138 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:06:31,138 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, 1, 1]
[2024-11-24 00:06:31,139 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 00:06:31,139 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2024-11-24 00:06:31,139 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:31,139 INFO  L85        PathProgramCache]: Analyzing trace with hash 1081154742, now seen corresponding path program 1 times
[2024-11-24 00:06:31,140 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:06:31,140 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426327096]
[2024-11-24 00:06:31,140 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:31,140 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:06:31,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:31,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:06:31,906 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:06:31,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426327096]
[2024-11-24 00:06:31,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426327096] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:06:31,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:06:31,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 00:06:31,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670462114]
[2024-11-24 00:06:31,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:06:31,906 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:06:31,907 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:06:31,907 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:06:31,907 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:06:31,917 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39
[2024-11-24 00:06:31,917 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 160 flow. Second operand  has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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)
[2024-11-24 00:06:31,917 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:06:31,917 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39
[2024-11-24 00:06:31,918 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:06:32,377 INFO  L124   PetriNetUnfolderBase]: 677/1266 cut-off events.
[2024-11-24 00:06:32,377 INFO  L125   PetriNetUnfolderBase]: For 566/583 co-relation queries the response was YES.
[2024-11-24 00:06:32,381 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2898 conditions, 1266 events. 677/1266 cut-off events. For 566/583 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 6972 event pairs, 342 based on Foata normal form. 8/1225 useless extension candidates. Maximal degree in co-relation 2883. Up to 630 conditions per place. 
[2024-11-24 00:06:32,385 INFO  L140   encePairwiseOnDemand]: 34/39 looper letters, 26 selfloop transitions, 2 changer transitions 13/58 dead transitions.
[2024-11-24 00:06:32,385 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 58 transitions, 288 flow
[2024-11-24 00:06:32,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-24 00:06:32,385 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:06:32,387 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions.
[2024-11-24 00:06:32,387 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5743589743589743
[2024-11-24 00:06:32,387 INFO  L175             Difference]: Start difference. First operand has 52 places, 39 transitions, 160 flow. Second operand 5 states and 112 transitions.
[2024-11-24 00:06:32,387 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 58 transitions, 288 flow
[2024-11-24 00:06:32,398 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 224 flow, removed 14 selfloop flow, removed 8 redundant places.
[2024-11-24 00:06:32,399 INFO  L231             Difference]: Finished difference. Result has 51 places, 39 transitions, 116 flow
[2024-11-24 00:06:32,399 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=51, PETRI_TRANSITIONS=39}
[2024-11-24 00:06:32,400 INFO  L279   CegarLoopForPetriNet]: 45 programPoint places, 6 predicate places.
[2024-11-24 00:06:32,400 INFO  L471      AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 116 flow
[2024-11-24 00:06:32,400 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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)
[2024-11-24 00:06:32,400 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:06:32,400 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, 1, 1]
[2024-11-24 00:06:32,400 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 00:06:32,400 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2024-11-24 00:06:32,401 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:32,401 INFO  L85        PathProgramCache]: Analyzing trace with hash 463533906, now seen corresponding path program 2 times
[2024-11-24 00:06:32,401 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:06:32,401 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208461679]
[2024-11-24 00:06:32,401 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:06:32,401 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:06:32,597 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:06:32,597 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:06:37,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:06:37,721 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:06:37,721 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208461679]
[2024-11-24 00:06:37,721 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208461679] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:06:37,721 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:06:37,721 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-24 00:06:37,722 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93034184]
[2024-11-24 00:06:37,722 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:06:37,722 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-24 00:06:37,722 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:06:37,723 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-24 00:06:37,723 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110
[2024-11-24 00:06:37,754 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39
[2024-11-24 00:06:37,754 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 116 flow. Second operand  has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 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)
[2024-11-24 00:06:37,755 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:06:37,755 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39
[2024-11-24 00:06:37,755 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:06:38,978 INFO  L124   PetriNetUnfolderBase]: 497/995 cut-off events.
[2024-11-24 00:06:38,978 INFO  L125   PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES.
[2024-11-24 00:06:38,981 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 995 events. 497/995 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5292 event pairs, 118 based on Foata normal form. 8/948 useless extension candidates. Maximal degree in co-relation 1980. Up to 315 conditions per place. 
[2024-11-24 00:06:38,985 INFO  L140   encePairwiseOnDemand]: 30/39 looper letters, 45 selfloop transitions, 17 changer transitions 11/92 dead transitions.
[2024-11-24 00:06:38,985 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 92 transitions, 378 flow
[2024-11-24 00:06:38,985 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-24 00:06:38,986 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-11-24 00:06:38,986 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 250 transitions.
[2024-11-24 00:06:38,987 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5827505827505828
[2024-11-24 00:06:38,987 INFO  L175             Difference]: Start difference. First operand has 51 places, 39 transitions, 116 flow. Second operand 11 states and 250 transitions.
[2024-11-24 00:06:38,987 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 92 transitions, 378 flow
[2024-11-24 00:06:38,988 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 92 transitions, 362 flow, removed 6 selfloop flow, removed 4 redundant places.
[2024-11-24 00:06:38,990 INFO  L231             Difference]: Finished difference. Result has 62 places, 55 transitions, 217 flow
[2024-11-24 00:06:38,990 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=217, PETRI_PLACES=62, PETRI_TRANSITIONS=55}
[2024-11-24 00:06:38,990 INFO  L279   CegarLoopForPetriNet]: 45 programPoint places, 17 predicate places.
[2024-11-24 00:06:38,991 INFO  L471      AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 217 flow
[2024-11-24 00:06:38,991 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 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)
[2024-11-24 00:06:38,991 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:06:38,991 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, 1, 1]
[2024-11-24 00:06:38,991 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 00:06:38,991 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2024-11-24 00:06:38,992 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:38,992 INFO  L85        PathProgramCache]: Analyzing trace with hash 1285857842, now seen corresponding path program 3 times
[2024-11-24 00:06:38,992 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:06:38,992 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711697723]
[2024-11-24 00:06:38,992 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:06:38,993 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:06:39,143 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2024-11-24 00:06:39,143 INFO  L230   tOrderPrioritization]: Conjunction of SSA is sat
[2024-11-24 00:06:39,143 INFO  L357             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 00:06:39,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 00:06:39,316 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-24 00:06:39,317 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2024-11-24 00:06:39,318 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining)
[2024-11-24 00:06:39,319 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining)
[2024-11-24 00:06:39,320 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining)
[2024-11-24 00:06:39,320 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining)
[2024-11-24 00:06:39,320 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining)
[2024-11-24 00:06:39,320 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining)
[2024-11-24 00:06:39,320 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 00:06:39,321 INFO  L422         BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1]
[2024-11-24 00:06:39,466 INFO  L241   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-24 00:06:39,468 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 00:06:39,477 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:06:39 BasicIcfg
[2024-11-24 00:06:39,478 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 00:06:39,478 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 00:06:39,478 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-24 00:06:39,479 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-24 00:06:39,479 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:25" (3/4) ...
[2024-11-24 00:06:39,480 INFO  L140         WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-24 00:06:39,645 INFO  L129   tionWitnessGenerator]: Generated YAML witness of length 9.
[2024-11-24 00:06:39,712 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 00:06:39,712 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 00:06:39,712 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 00:06:39,714 INFO  L158              Benchmark]: Toolchain (without parser) took 16175.05ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 91.2MB in the beginning and 256.9MB in the end (delta: -165.7MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB.
[2024-11-24 00:06:39,714 INFO  L158              Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:06:39,715 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 613.73ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 65.7MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-24 00:06:39,716 INFO  L158              Benchmark]: Boogie Procedure Inliner took 49.78ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 63.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:06:39,716 INFO  L158              Benchmark]: Boogie Preprocessor took 59.76ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 58.6MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 00:06:39,717 INFO  L158              Benchmark]: RCFGBuilder took 1509.23ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 62.9MB in the end (delta: -4.3MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB.
[2024-11-24 00:06:39,718 INFO  L158              Benchmark]: TraceAbstraction took 13700.42ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 62.3MB in the beginning and 282.1MB in the end (delta: -219.8MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB.
[2024-11-24 00:06:39,718 INFO  L158              Benchmark]: Witness Printer took 234.17ms. Allocated memory is still 385.9MB. Free memory was 282.1MB in the beginning and 256.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-24 00:06:39,720 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 613.73ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 65.7MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 49.78ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 63.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 59.76ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 58.6MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * RCFGBuilder took 1509.23ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 62.9MB in the end (delta: -4.3MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 13700.42ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 62.3MB in the beginning and 282.1MB in the end (delta: -219.8MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB.
 * Witness Printer took 234.17ms. Allocated memory is still 385.9MB. Free memory was 282.1MB in the beginning and 256.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 19]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L710]               0  int __unbuffered_cnt = 0;
[L712]               0  int __unbuffered_p0_EAX = 0;
[L714]               0  int __unbuffered_p2_EAX = 0;
[L715]               0  _Bool __unbuffered_p2_EAX$flush_delayed;
[L716]               0  int __unbuffered_p2_EAX$mem_tmp;
[L717]               0  _Bool __unbuffered_p2_EAX$r_buff0_thd0;
[L718]               0  _Bool __unbuffered_p2_EAX$r_buff0_thd1;
[L719]               0  _Bool __unbuffered_p2_EAX$r_buff0_thd2;
[L720]               0  _Bool __unbuffered_p2_EAX$r_buff0_thd3;
[L721]               0  _Bool __unbuffered_p2_EAX$r_buff1_thd0;
[L722]               0  _Bool __unbuffered_p2_EAX$r_buff1_thd1;
[L723]               0  _Bool __unbuffered_p2_EAX$r_buff1_thd2;
[L724]               0  _Bool __unbuffered_p2_EAX$r_buff1_thd3;
[L725]               0  _Bool __unbuffered_p2_EAX$read_delayed;
[L726]               0  int *__unbuffered_p2_EAX$read_delayed_var;
[L727]               0  int __unbuffered_p2_EAX$w_buff0;
[L728]               0  _Bool __unbuffered_p2_EAX$w_buff0_used;
[L729]               0  int __unbuffered_p2_EAX$w_buff1;
[L730]               0  _Bool __unbuffered_p2_EAX$w_buff1_used;
[L731]               0  _Bool main$tmp_guard0;
[L732]               0  _Bool main$tmp_guard1;
[L734]               0  int x = 0;
[L734]               0  int x = 0;
[L735]               0  _Bool x$flush_delayed;
[L736]               0  int x$mem_tmp;
[L737]               0  _Bool x$r_buff0_thd0;
[L738]               0  _Bool x$r_buff0_thd1;
[L739]               0  _Bool x$r_buff0_thd2;
[L740]               0  _Bool x$r_buff0_thd3;
[L741]               0  _Bool x$r_buff1_thd0;
[L742]               0  _Bool x$r_buff1_thd1;
[L743]               0  _Bool x$r_buff1_thd2;
[L744]               0  _Bool x$r_buff1_thd3;
[L745]               0  _Bool x$read_delayed;
[L746]               0  int *x$read_delayed_var;
[L747]               0  int x$w_buff0;
[L748]               0  _Bool x$w_buff0_used;
[L749]               0  int x$w_buff1;
[L750]               0  _Bool x$w_buff1_used;
[L752]               0  int y = 0;
[L753]               0  _Bool weak$$choice0;
[L754]               0  _Bool weak$$choice1;
[L755]               0  _Bool weak$$choice2;
[L859]               0  pthread_t t2257;
[L860]  FCALL, FORK  0  pthread_create(&t2257, ((void *)0), P0, ((void *)0))
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2257=-3, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0]
[L861]               0  pthread_t t2258;
[L862]  FCALL, FORK  0  pthread_create(&t2258, ((void *)0), P1, ((void *)0))
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2257=-3, t2258=-2, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0]
[L863]               0  pthread_t t2259;
[L864]  FCALL, FORK  0  pthread_create(&t2259, ((void *)0), P2, ((void *)0))
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2257=-3, t2258=-2, t2259=-1, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0]
[L815]               3  weak$$choice0 = __VERIFIER_nondet_bool()
[L816]               3  weak$$choice2 = __VERIFIER_nondet_bool()
[L817]               3  x$flush_delayed = weak$$choice2
[L818]  EXPR         3  \read(x)
[L818]               3  x$mem_tmp = x
[L819]               3  weak$$choice1 = __VERIFIER_nondet_bool()
[L820]  EXPR         3  !x$w_buff0_used ? x : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x : (weak$$choice1 ? x$w_buff0 : x$w_buff1)) : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x$w_buff1 : x$w_buff0) : (weak$$choice0 ? x$w_buff0 : x))))
[L820]  EXPR         3  \read(x)
[L820]  EXPR         3  !x$w_buff0_used ? x : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x : (weak$$choice1 ? x$w_buff0 : x$w_buff1)) : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x$w_buff1 : x$w_buff0) : (weak$$choice0 ? x$w_buff0 : x))))
[L820]               3  x = !x$w_buff0_used ? x : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x : (weak$$choice1 ? x$w_buff0 : x$w_buff1)) : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x$w_buff1 : x$w_buff0) : (weak$$choice0 ? x$w_buff0 : x))))
[L821]               3  x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$w_buff0 : x$w_buff0))))
[L822]               3  x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff1 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$w_buff1 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$w_buff1 : x$w_buff1))))
[L823]               3  x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? weak$$choice0 || !weak$$choice1 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? weak$$choice0 : weak$$choice0))))
[L824]               3  x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? weak$$choice0 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (_Bool)0 : (_Bool)0))))
[L825]               3  x$r_buff0_thd3 = weak$$choice2 ? x$r_buff0_thd3 : (!x$w_buff0_used ? x$r_buff0_thd3 : (x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$r_buff0_thd3 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (_Bool)0 : (_Bool)0))))
[L826]               3  x$r_buff1_thd3 = weak$$choice2 ? x$r_buff1_thd3 : (!x$w_buff0_used ? x$r_buff1_thd3 : (x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x$r_buff1_thd3 : (_Bool)0) : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (_Bool)0 : (_Bool)0))))
[L827]               3  __unbuffered_p2_EAX$read_delayed = (_Bool)1
[L828]               3  __unbuffered_p2_EAX$read_delayed_var = &x
[L829]  EXPR         3  \read(x)
[L829]               3  __unbuffered_p2_EAX = x
[L830]  EXPR         3  x$flush_delayed ? x$mem_tmp : x
[L830]  EXPR         3  x$flush_delayed ? x$mem_tmp : x
[L830]               3  x = x$flush_delayed ? x$mem_tmp : x
[L831]               3  x$flush_delayed = (_Bool)0
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0]
[L834]               3  y = 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=1]
[L759]               1  y = 2
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L764]               1  weak$$choice0 = __VERIFIER_nondet_bool()
[L765]               1  weak$$choice2 = __VERIFIER_nondet_bool()
[L766]               1  x$flush_delayed = weak$$choice2
[L767]  EXPR         1  \read(x)
[L767]               1  x$mem_tmp = x
[L768]  EXPR         1  !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1)
[L768]  EXPR         1  \read(x)
[L768]  EXPR         1  !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1)
[L768]               1  x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1)
[L769]               1  x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0))
[L770]               1  x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1))
[L771]               1  x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used))
[L772]               1  x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L773]               1  x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1))
[L774]               1  x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L775]  EXPR         1  \read(x)
[L775]               1  __unbuffered_p0_EAX = x
[L776]  EXPR         1  x$flush_delayed ? x$mem_tmp : x
[L776]  EXPR         1  \read(x)
[L776]  EXPR         1  x$flush_delayed ? x$mem_tmp : x
[L776]               1  x = x$flush_delayed ? x$mem_tmp : x
[L777]               1  x$flush_delayed = (_Bool)0
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L789]               2  x$w_buff1 = x$w_buff0
[L790]               2  x$w_buff0 = 1
[L791]               2  x$w_buff1_used = x$w_buff0_used
[L792]               2  x$w_buff0_used = (_Bool)1
[L793]  CALL         2  __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used))
[L19]   COND FALSE   2  !(!expression)
[L793]  RET          2  __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used))
[L794]               2  x$r_buff1_thd0 = x$r_buff0_thd0
[L795]               2  x$r_buff1_thd1 = x$r_buff0_thd1
[L796]               2  x$r_buff1_thd2 = x$r_buff0_thd2
[L797]               2  x$r_buff1_thd3 = x$r_buff0_thd3
[L798]               2  x$r_buff0_thd2 = (_Bool)1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L801]  EXPR         2  x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x)
[L801]  EXPR         2  x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x)
[L801]               2  x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x)
[L802]               2  x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used
[L803]               2  x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used
[L804]               2  x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2
[L805]               2  x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L837]  EXPR         3  x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x)
[L837]  EXPR         3  x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x
[L837]  EXPR         3  \read(x)
[L837]  EXPR         3  x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x
[L837]  EXPR         3  x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x)
[L837]               3  x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x)
[L838]               3  x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used
[L839]               3  x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used
[L840]               3  x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3
[L841]               3  x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L808]               2  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L844]               3  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L782]               1  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L866]               0  main$tmp_guard0 = __unbuffered_cnt == 3
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2257=-3, t2258=-2, t2259=-1, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L868]  CALL         0  assume_abort_if_not(main$tmp_guard0)
[L4]    COND FALSE   0  !(!cond)
[L868]  RET          0  assume_abort_if_not(main$tmp_guard0)
[L870]  EXPR         0  x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x)
[L870]  EXPR         0  x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x
[L870]  EXPR         0  \read(x)
[L870]  EXPR         0  x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x
[L870]  EXPR         0  x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x)
[L870]               0  x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x)
[L871]               0  x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used
[L872]               0  x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used
[L873]               0  x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0
[L874]               0  x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2257=-3, t2258=-2, t2259=-1, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L877]               0  weak$$choice1 = __VERIFIER_nondet_bool()
[L878]  EXPR         0  __unbuffered_p2_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX) : __unbuffered_p2_EAX
[L878]  EXPR         0  weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX
[L878]  EXPR         0  \read(*__unbuffered_p2_EAX$read_delayed_var)
[L878]  EXPR         0  weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX
[L878]  EXPR         0  __unbuffered_p2_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX) : __unbuffered_p2_EAX
[L878]               0  __unbuffered_p2_EAX = __unbuffered_p2_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX) : __unbuffered_p2_EAX
[L879]               0  main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1)
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2257=-3, t2258=-2, t2259=-1, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L881]  CALL         0  __VERIFIER_assert(main$tmp_guard1)
[L19]   COND TRUE    0  !expression
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]
[L19]                0  reach_error()
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2]

  - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable
    Unable to prove that a call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 860]: 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: 864]: 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: 862]: 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 7 procedures, 64 locations, 6 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: 13.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 272 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 830 IncrementalHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 4 mSDtfsCounter, 830 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=6, InterpolantAutomatonStates: 34, 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, 1.0s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 1130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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!
[2024-11-24 00:06:39,745 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cb29b9b-96a2-41c1-b633-fccc5e524ac6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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