./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longer-2.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-28 02:07:26,990 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-28 02:07:27,112 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-28 02:07:27,118 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-28 02:07:27,118 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-28 02:07:27,146 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-28 02:07:27,146 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-28 02:07:27,147 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-28 02:07:27,147 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-28 02:07:27,147 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-28 02:07:27,148 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-28 02:07:27,148 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-28 02:07:27,148 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-28 02:07:27,148 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-28 02:07:27,149 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-28 02:07:27,149 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-28 02:07:27,149 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-28 02:07:27,149 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-28 02:07:27,149 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-28 02:07:27,150 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-28 02:07:27,150 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-28 02:07:27,150 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-28 02:07:27,150 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-28 02:07:27,150 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-28 02:07:27,150 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-28 02:07:27,150 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-28 02:07:27,151 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-28 02:07:27,151 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-28 02:07:27,151 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-28 02:07:27,151 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 02:07:27,151 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 02:07:27,151 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 02:07:27,152 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 02:07:27,152 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-28 02:07:27,152 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 02:07:27,152 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 02:07:27,152 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 02:07:27,152 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 02:07:27,153 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-28 02:07:27,153 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-28 02:07:27,153 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-28 02:07:27,153 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-28 02:07:27,153 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-28 02:07:27,153 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-28 02:07:27,153 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-28 02:07:27,153 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-28 02:07:27,153 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-28 02:07:27,154 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-28 02:07:27,154 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_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688
[2024-11-28 02:07:27,528 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-28 02:07:27,538 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-28 02:07:27,541 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-28 02:07:27,543 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-28 02:07:27,543 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-28 02:07:27,545 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread/stack_longer-2.i
[2024-11-28 02:07:30,770 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/data/f52e46a74/ee672a6244cb48c8a5feaca8651b46de/FLAG3b8f03b99
[2024-11-28 02:07:31,306 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-28 02:07:31,307 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/sv-benchmarks/c/pthread/stack_longer-2.i
[2024-11-28 02:07:31,338 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/data/f52e46a74/ee672a6244cb48c8a5feaca8651b46de/FLAG3b8f03b99
[2024-11-28 02:07:31,368 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/data/f52e46a74/ee672a6244cb48c8a5feaca8651b46de
[2024-11-28 02:07:31,371 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-28 02:07:31,375 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-28 02:07:31,378 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-28 02:07:31,378 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-28 02:07:31,388 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-28 02:07:31,389 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:31" (1/1) ...
[2024-11-28 02:07:31,391 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51bee056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:31, skipping insertion in model container
[2024-11-28 02:07:31,393 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:31" (1/1) ...
[2024-11-28 02:07:31,451 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-28 02:07:32,059 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/sv-benchmarks/c/pthread/stack_longer-2.i[41529,41542]
[2024-11-28 02:07:32,109 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 02:07:32,154 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-28 02:07:32,211 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_55e0e574-0009-4c07-8c7f-1427b82d972d/sv-benchmarks/c/pthread/stack_longer-2.i[41529,41542]
[2024-11-28 02:07:32,222 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 02:07:32,359 INFO  L204         MainTranslator]: Completed translation
[2024-11-28 02:07:32,360 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32 WrapperNode
[2024-11-28 02:07:32,360 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-28 02:07:32,363 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-28 02:07:32,363 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-28 02:07:32,363 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-28 02:07:32,376 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,414 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,476 INFO  L138                Inliner]: procedures = 277, calls = 430, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 543
[2024-11-28 02:07:32,477 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-28 02:07:32,477 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-28 02:07:32,477 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-28 02:07:32,477 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-28 02:07:32,491 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,491 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,502 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,540 INFO  L175           MemorySlicer]: Split 409 memory accesses to 3 slices as follows [2, 5, 402]. 98 percent of accesses are in the largest equivalence class. The 407 initializations are split as follows [2, 5, 400]. The 1 writes are split as follows [0, 0, 1].
[2024-11-28 02:07:32,540 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,541 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,578 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,584 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,593 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,596 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,602 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,611 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-28 02:07:32,611 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-28 02:07:32,615 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-28 02:07:32,615 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-28 02:07:32,616 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (1/1) ...
[2024-11-28 02:07:32,627 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 02:07:32,661 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:07:32,679 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-28 02:07:32,683 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-28 02:07:32,713 INFO  L130     BoogieDeclarations]: Found specification of procedure t1
[2024-11-28 02:07:32,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure t1
[2024-11-28 02:07:32,714 INFO  L130     BoogieDeclarations]: Found specification of procedure t2
[2024-11-28 02:07:32,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure t2
[2024-11-28 02:07:32,714 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-28 02:07:32,715 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-28 02:07:32,715 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-28 02:07:32,715 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-28 02:07:32,715 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-28 02:07:32,715 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-28 02:07:32,715 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-28 02:07:32,716 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-28 02:07:32,716 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-28 02:07:32,716 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-28 02:07:32,716 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-28 02:07:32,716 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-28 02:07:32,717 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-28 02:07:32,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-28 02:07:32,719 WARN  L203             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-28 02:07:32,914 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-28 02:07:32,915 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-28 02:07:34,149 INFO  L279             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-28 02:07:34,150 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-28 02:07:40,784 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-28 02:07:40,784 INFO  L312             CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-28 02:07:40,785 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:40 BoogieIcfgContainer
[2024-11-28 02:07:40,785 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-28 02:07:40,789 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-28 02:07:40,789 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-28 02:07:40,799 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-28 02:07:40,799 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:31" (1/3) ...
[2024-11-28 02:07:40,800 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a89263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:40, skipping insertion in model container
[2024-11-28 02:07:40,800 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:32" (2/3) ...
[2024-11-28 02:07:40,801 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a89263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:40, skipping insertion in model container
[2024-11-28 02:07:40,802 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:40" (3/3) ...
[2024-11-28 02:07:40,804 INFO  L128   eAbstractionObserver]: Analyzing ICFG stack_longer-2.i
[2024-11-28 02:07:40,826 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-28 02:07:40,830 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG stack_longer-2.i that has 3 procedures, 30 locations, 1 initial locations, 2 loop locations, and 2 error locations.
[2024-11-28 02:07:40,830 INFO  L491   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-28 02:07:40,946 INFO  L143    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-28 02:07:41,002 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 36 places, 34 transitions, 82 flow
[2024-11-28 02:07:41,080 INFO  L124   PetriNetUnfolderBase]: 5/32 cut-off events.
[2024-11-28 02:07:41,084 INFO  L125   PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-28 02:07:41,088 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 5/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 29. Up to 3 conditions per place. 
[2024-11-28 02:07:41,090 INFO  L82        GeneralOperation]: Start removeDead. Operand has 36 places, 34 transitions, 82 flow
[2024-11-28 02:07:41,099 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 32 places, 30 transitions, 69 flow
[2024-11-28 02:07:41,114 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 02:07:41,135 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;@2a92ac77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 02:07:41,135 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2024-11-28 02:07:41,174 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-28 02:07:41,174 INFO  L124   PetriNetUnfolderBase]: 1/18 cut-off events.
[2024-11-28 02:07:41,174 INFO  L125   PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-28 02:07:41,175 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:07:41,175 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:07:41,176 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:07:41,186 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:07:41,188 INFO  L85        PathProgramCache]: Analyzing trace with hash 1553598884, now seen corresponding path program 1 times
[2024-11-28 02:07:41,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:07:41,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466896581]
[2024-11-28 02:07:41,199 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:41,199 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:07:41,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:42,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:42,380 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:07:42,382 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466896581]
[2024-11-28 02:07:42,383 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466896581] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 02:07:42,384 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 02:07:42,384 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-28 02:07:42,386 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173830853]
[2024-11-28 02:07:42,389 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:07:42,398 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 02:07:42,404 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:07:42,438 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 02:07:42,438 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 02:07:42,447 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34
[2024-11-28 02:07:42,450 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 69 flow. Second operand  has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:42,450 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:07:42,451 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34
[2024-11-28 02:07:42,453 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:07:42,901 INFO  L124   PetriNetUnfolderBase]: 307/576 cut-off events.
[2024-11-28 02:07:42,901 INFO  L125   PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES.
[2024-11-28 02:07:42,904 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 576 events. 307/576 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2546 event pairs, 53 based on Foata normal form. 43/582 useless extension candidates. Maximal degree in co-relation 1055. Up to 358 conditions per place. 
[2024-11-28 02:07:42,910 INFO  L140   encePairwiseOnDemand]: 27/34 looper letters, 41 selfloop transitions, 3 changer transitions 2/52 dead transitions.
[2024-11-28 02:07:42,911 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 52 transitions, 214 flow
[2024-11-28 02:07:42,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 02:07:42,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-28 02:07:42,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions.
[2024-11-28 02:07:42,934 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.6102941176470589
[2024-11-28 02:07:42,936 INFO  L175             Difference]: Start difference. First operand has 32 places, 30 transitions, 69 flow. Second operand 4 states and 83 transitions.
[2024-11-28 02:07:42,939 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 52 transitions, 214 flow
[2024-11-28 02:07:42,948 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 52 transitions, 205 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-28 02:07:42,954 INFO  L231             Difference]: Finished difference. Result has 34 places, 30 transitions, 82 flow
[2024-11-28 02:07:42,958 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=34, PETRI_TRANSITIONS=30}
[2024-11-28 02:07:42,964 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places.
[2024-11-28 02:07:42,965 INFO  L471      AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 82 flow
[2024-11-28 02:07:42,965 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:42,965 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:07:42,965 INFO  L206   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:07:42,965 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-28 02:07:42,966 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:07:42,966 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:07:42,967 INFO  L85        PathProgramCache]: Analyzing trace with hash -233524225, now seen corresponding path program 1 times
[2024-11-28 02:07:42,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:07:42,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935597199]
[2024-11-28 02:07:42,967 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:42,967 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:07:43,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:43,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:43,823 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:07:43,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935597199]
[2024-11-28 02:07:43,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935597199] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:07:43,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812296965]
[2024-11-28 02:07:43,823 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:43,823 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:07:43,824 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:07:43,829 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:07:43,831 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-28 02:07:44,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:44,158 INFO  L256         TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-28 02:07:44,164 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:07:44,241 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:07:44,358 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:44,358 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:07:44,461 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:44,462 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [812296965] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 02:07:44,462 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 02:07:44,462 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2024-11-28 02:07:44,463 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480308692]
[2024-11-28 02:07:44,463 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 02:07:44,464 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-28 02:07:44,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:07:44,465 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-28 02:07:44,465 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2024-11-28 02:07:44,469 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:07:44,469 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 82 flow. Second operand  has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:44,469 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:07:44,469 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:07:44,470 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:07:45,421 INFO  L124   PetriNetUnfolderBase]: 1257/2340 cut-off events.
[2024-11-28 02:07:45,421 INFO  L125   PetriNetUnfolderBase]: For 301/303 co-relation queries the response was YES.
[2024-11-28 02:07:45,432 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 4928 conditions, 2340 events. 1257/2340 cut-off events. For 301/303 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 12430 event pairs, 153 based on Foata normal form. 49/2288 useless extension candidates. Maximal degree in co-relation 4364. Up to 365 conditions per place. 
[2024-11-28 02:07:45,449 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 163 selfloop transitions, 32 changer transitions 4/204 dead transitions.
[2024-11-28 02:07:45,449 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 204 transitions, 900 flow
[2024-11-28 02:07:45,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-28 02:07:45,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2024-11-28 02:07:45,453 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 313 transitions.
[2024-11-28 02:07:45,454 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.6137254901960785
[2024-11-28 02:07:45,454 INFO  L175             Difference]: Start difference. First operand has 34 places, 30 transitions, 82 flow. Second operand 15 states and 313 transitions.
[2024-11-28 02:07:45,454 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 204 transitions, 900 flow
[2024-11-28 02:07:45,459 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 204 transitions, 896 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-28 02:07:45,465 INFO  L231             Difference]: Finished difference. Result has 54 places, 66 transitions, 329 flow
[2024-11-28 02:07:45,466 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=329, PETRI_PLACES=54, PETRI_TRANSITIONS=66}
[2024-11-28 02:07:45,467 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 22 predicate places.
[2024-11-28 02:07:45,467 INFO  L471      AbstractCegarLoop]: Abstraction has has 54 places, 66 transitions, 329 flow
[2024-11-28 02:07:45,467 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:45,467 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:07:45,468 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:07:45,483 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-28 02:07:45,669 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:07:45,670 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:07:45,670 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:07:45,671 INFO  L85        PathProgramCache]: Analyzing trace with hash 780917001, now seen corresponding path program 1 times
[2024-11-28 02:07:45,671 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:07:45,671 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32538953]
[2024-11-28 02:07:45,671 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:45,671 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:07:45,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:45,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:45,992 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:07:45,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32538953]
[2024-11-28 02:07:45,992 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32538953] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 02:07:45,992 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 02:07:45,993 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-28 02:07:45,993 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830483695]
[2024-11-28 02:07:45,993 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:07:45,993 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 02:07:45,993 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:07:45,994 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 02:07:45,994 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 02:07:45,994 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34
[2024-11-28 02:07:45,994 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 66 transitions, 329 flow. Second operand  has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:45,994 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:07:45,994 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34
[2024-11-28 02:07:45,994 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:07:46,307 INFO  L124   PetriNetUnfolderBase]: 669/1355 cut-off events.
[2024-11-28 02:07:46,308 INFO  L125   PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES.
[2024-11-28 02:07:46,316 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3066 conditions, 1355 events. 669/1355 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6858 event pairs, 231 based on Foata normal form. 66/1406 useless extension candidates. Maximal degree in co-relation 2918. Up to 634 conditions per place. 
[2024-11-28 02:07:46,323 INFO  L140   encePairwiseOnDemand]: 30/34 looper letters, 43 selfloop transitions, 4 changer transitions 0/59 dead transitions.
[2024-11-28 02:07:46,323 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 59 transitions, 339 flow
[2024-11-28 02:07:46,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-28 02:07:46,324 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-28 02:07:46,325 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions.
[2024-11-28 02:07:46,326 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5686274509803921
[2024-11-28 02:07:46,327 INFO  L175             Difference]: Start difference. First operand has 54 places, 66 transitions, 329 flow. Second operand 3 states and 58 transitions.
[2024-11-28 02:07:46,327 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 59 transitions, 339 flow
[2024-11-28 02:07:46,343 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 307 flow, removed 16 selfloop flow, removed 3 redundant places.
[2024-11-28 02:07:46,345 INFO  L231             Difference]: Finished difference. Result has 50 places, 49 transitions, 198 flow
[2024-11-28 02:07:46,345 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=50, PETRI_TRANSITIONS=49}
[2024-11-28 02:07:46,347 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places.
[2024-11-28 02:07:46,347 INFO  L471      AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 198 flow
[2024-11-28 02:07:46,348 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:46,348 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:07:46,348 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:07:46,348 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-28 02:07:46,348 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:07:46,349 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:07:46,349 INFO  L85        PathProgramCache]: Analyzing trace with hash 1022875712, now seen corresponding path program 1 times
[2024-11-28 02:07:46,349 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:07:46,349 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883514118]
[2024-11-28 02:07:46,349 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:46,349 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:07:46,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:48,263 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:48,264 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:07:48,264 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883514118]
[2024-11-28 02:07:48,264 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883514118] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 02:07:48,265 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 02:07:48,265 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 02:07:48,266 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447266475]
[2024-11-28 02:07:48,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:07:48,266 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 02:07:48,266 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:07:48,267 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 02:07:48,268 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-28 02:07:48,277 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34
[2024-11-28 02:07:48,277 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 198 flow. Second operand  has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:48,279 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:07:48,279 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34
[2024-11-28 02:07:48,279 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:07:48,745 INFO  L124   PetriNetUnfolderBase]: 840/1700 cut-off events.
[2024-11-28 02:07:48,745 INFO  L125   PetriNetUnfolderBase]: For 579/579 co-relation queries the response was YES.
[2024-11-28 02:07:48,751 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3884 conditions, 1700 events. 840/1700 cut-off events. For 579/579 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 8907 event pairs, 260 based on Foata normal form. 0/1681 useless extension candidates. Maximal degree in co-relation 3504. Up to 971 conditions per place. 
[2024-11-28 02:07:48,760 INFO  L140   encePairwiseOnDemand]: 29/34 looper letters, 61 selfloop transitions, 7 changer transitions 4/84 dead transitions.
[2024-11-28 02:07:48,761 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 84 transitions, 451 flow
[2024-11-28 02:07:48,761 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 02:07:48,761 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-28 02:07:48,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions.
[2024-11-28 02:07:48,762 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5705882352941176
[2024-11-28 02:07:48,762 INFO  L175             Difference]: Start difference. First operand has 50 places, 49 transitions, 198 flow. Second operand 5 states and 97 transitions.
[2024-11-28 02:07:48,762 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 84 transitions, 451 flow
[2024-11-28 02:07:48,771 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 84 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-28 02:07:48,773 INFO  L231             Difference]: Finished difference. Result has 56 places, 54 transitions, 254 flow
[2024-11-28 02:07:48,774 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=56, PETRI_TRANSITIONS=54}
[2024-11-28 02:07:48,775 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 24 predicate places.
[2024-11-28 02:07:48,776 INFO  L471      AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 254 flow
[2024-11-28 02:07:48,776 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:48,776 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:07:48,777 INFO  L206   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:07:48,777 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-28 02:07:48,777 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:07:48,778 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:07:48,778 INFO  L85        PathProgramCache]: Analyzing trace with hash -1714487563, now seen corresponding path program 1 times
[2024-11-28 02:07:48,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:07:48,779 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647275783]
[2024-11-28 02:07:48,779 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:48,779 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:07:48,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:50,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:50,222 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:07:50,222 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647275783]
[2024-11-28 02:07:50,223 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647275783] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:07:50,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438184132]
[2024-11-28 02:07:50,223 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:50,223 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:07:50,223 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:07:50,225 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:07:50,230 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-28 02:07:50,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:50,544 INFO  L256         TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-28 02:07:50,550 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:07:50,609 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:07:50,728 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1
[2024-11-28 02:07:50,874 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 32
[2024-11-28 02:07:50,956 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:50,956 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:07:51,446 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1
[2024-11-28 02:07:51,519 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:51,519 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438184132] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 02:07:51,519 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 02:07:51,519 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13
[2024-11-28 02:07:51,520 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993844236]
[2024-11-28 02:07:51,520 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 02:07:51,520 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-28 02:07:51,520 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:07:51,521 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-28 02:07:51,521 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2024-11-28 02:07:51,525 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:07:51,526 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 254 flow. Second operand  has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 14 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:51,526 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:07:51,526 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:07:51,526 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:07:53,301 INFO  L124   PetriNetUnfolderBase]: 1747/3464 cut-off events.
[2024-11-28 02:07:53,302 INFO  L125   PetriNetUnfolderBase]: For 1581/1581 co-relation queries the response was YES.
[2024-11-28 02:07:53,317 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 7901 conditions, 3464 events. 1747/3464 cut-off events. For 1581/1581 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 18914 event pairs, 341 based on Foata normal form. 14/3413 useless extension candidates. Maximal degree in co-relation 6810. Up to 566 conditions per place. 
[2024-11-28 02:07:53,333 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 201 selfloop transitions, 52 changer transitions 18/276 dead transitions.
[2024-11-28 02:07:53,333 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 276 transitions, 1488 flow
[2024-11-28 02:07:53,333 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2024-11-28 02:07:53,334 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2024-11-28 02:07:53,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 413 transitions.
[2024-11-28 02:07:53,337 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5521390374331551
[2024-11-28 02:07:53,337 INFO  L175             Difference]: Start difference. First operand has 56 places, 54 transitions, 254 flow. Second operand 22 states and 413 transitions.
[2024-11-28 02:07:53,337 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 276 transitions, 1488 flow
[2024-11-28 02:07:53,353 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 276 transitions, 1480 flow, removed 3 selfloop flow, removed 1 redundant places.
[2024-11-28 02:07:53,360 INFO  L231             Difference]: Finished difference. Result has 81 places, 89 transitions, 542 flow
[2024-11-28 02:07:53,360 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=542, PETRI_PLACES=81, PETRI_TRANSITIONS=89}
[2024-11-28 02:07:53,361 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 49 predicate places.
[2024-11-28 02:07:53,361 INFO  L471      AbstractCegarLoop]: Abstraction has has 81 places, 89 transitions, 542 flow
[2024-11-28 02:07:53,361 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 14 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:53,361 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:07:53,361 INFO  L206   CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:07:53,374 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-28 02:07:53,562 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:07:53,562 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:07:53,563 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:07:53,563 INFO  L85        PathProgramCache]: Analyzing trace with hash 943848070, now seen corresponding path program 1 times
[2024-11-28 02:07:53,563 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:07:53,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905719991]
[2024-11-28 02:07:53,563 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:53,563 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:07:53,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:54,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:54,100 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:07:54,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905719991]
[2024-11-28 02:07:54,100 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905719991] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:07:54,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500006905]
[2024-11-28 02:07:54,100 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:54,100 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:07:54,101 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:07:54,103 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:07:54,106 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-28 02:07:54,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:54,492 INFO  L256         TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-28 02:07:54,499 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:07:54,536 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:07:54,619 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:07:54,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:54,898 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:07:54,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-28 02:07:54,969 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [500006905] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:07:54,969 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-28 02:07:54,969 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 12
[2024-11-28 02:07:54,970 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48116184]
[2024-11-28 02:07:54,970 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:07:54,970 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 02:07:54,970 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:07:54,971 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 02:07:54,971 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132
[2024-11-28 02:07:54,973 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:07:54,974 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 89 transitions, 542 flow. Second operand  has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:54,974 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:07:54,974 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:07:54,974 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:07:55,954 INFO  L124   PetriNetUnfolderBase]: 2062/4114 cut-off events.
[2024-11-28 02:07:55,954 INFO  L125   PetriNetUnfolderBase]: For 3655/3655 co-relation queries the response was YES.
[2024-11-28 02:07:55,980 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 9905 conditions, 4114 events. 2062/4114 cut-off events. For 3655/3655 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 23875 event pairs, 425 based on Foata normal form. 24/4108 useless extension candidates. Maximal degree in co-relation 9267. Up to 1663 conditions per place. 
[2024-11-28 02:07:56,000 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 81 selfloop transitions, 50 changer transitions 2/138 dead transitions.
[2024-11-28 02:07:56,000 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 138 transitions, 993 flow
[2024-11-28 02:07:56,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-28 02:07:56,001 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-28 02:07:56,001 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions.
[2024-11-28 02:07:56,002 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5490196078431373
[2024-11-28 02:07:56,002 INFO  L175             Difference]: Start difference. First operand has 81 places, 89 transitions, 542 flow. Second operand 6 states and 112 transitions.
[2024-11-28 02:07:56,002 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 138 transitions, 993 flow
[2024-11-28 02:07:56,030 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 138 transitions, 969 flow, removed 12 selfloop flow, removed 0 redundant places.
[2024-11-28 02:07:56,034 INFO  L231             Difference]: Finished difference. Result has 88 places, 101 transitions, 751 flow
[2024-11-28 02:07:56,034 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=751, PETRI_PLACES=88, PETRI_TRANSITIONS=101}
[2024-11-28 02:07:56,035 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 56 predicate places.
[2024-11-28 02:07:56,035 INFO  L471      AbstractCegarLoop]: Abstraction has has 88 places, 101 transitions, 751 flow
[2024-11-28 02:07:56,035 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:56,035 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:07:56,035 INFO  L206   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:07:56,047 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-28 02:07:56,239 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:07:56,240 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:07:56,241 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:07:56,241 INFO  L85        PathProgramCache]: Analyzing trace with hash -654218080, now seen corresponding path program 1 times
[2024-11-28 02:07:56,241 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:07:56,241 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954218136]
[2024-11-28 02:07:56,241 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:56,241 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:07:56,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:58,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:58,021 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:07:58,021 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954218136]
[2024-11-28 02:07:58,021 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954218136] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:07:58,021 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136121011]
[2024-11-28 02:07:58,021 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:07:58,021 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:07:58,021 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:07:58,026 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:07:58,028 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-28 02:07:58,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:07:58,342 INFO  L256         TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-28 02:07:58,353 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:07:58,413 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-11-28 02:07:58,564 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 19
[2024-11-28 02:07:58,858 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 32
[2024-11-28 02:07:58,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:58,915 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:07:59,817 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-28 02:07:59,818 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 14
[2024-11-28 02:07:59,874 INFO  L349             Elim1Store]: treesize reduction 17, result has 37.0 percent of original size
[2024-11-28 02:07:59,874 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 65
[2024-11-28 02:07:59,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:07:59,990 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [136121011] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 02:07:59,990 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 02:07:59,990 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16
[2024-11-28 02:07:59,991 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726680198]
[2024-11-28 02:07:59,991 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 02:07:59,992 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-28 02:07:59,992 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:07:59,993 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-28 02:07:59,993 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272
[2024-11-28 02:07:59,998 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:07:59,998 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 101 transitions, 751 flow. Second operand  has 17 states, 17 states have (on average 11.058823529411764) internal successors, (188), 17 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:07:59,999 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:07:59,999 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:07:59,999 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:08:03,420 INFO  L124   PetriNetUnfolderBase]: 4046/8044 cut-off events.
[2024-11-28 02:08:03,420 INFO  L125   PetriNetUnfolderBase]: For 11279/11279 co-relation queries the response was YES.
[2024-11-28 02:08:03,470 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 20343 conditions, 8044 events. 4046/8044 cut-off events. For 11279/11279 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 49044 event pairs, 950 based on Foata normal form. 56/8070 useless extension candidates. Maximal degree in co-relation 19195. Up to 1343 conditions per place. 
[2024-11-28 02:08:03,510 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 226 selfloop transitions, 123 changer transitions 36/390 dead transitions.
[2024-11-28 02:08:03,510 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 390 transitions, 2865 flow
[2024-11-28 02:08:03,511 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-28 02:08:03,511 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2024-11-28 02:08:03,513 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 450 transitions.
[2024-11-28 02:08:03,513 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5294117647058824
[2024-11-28 02:08:03,513 INFO  L175             Difference]: Start difference. First operand has 88 places, 101 transitions, 751 flow. Second operand 25 states and 450 transitions.
[2024-11-28 02:08:03,513 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 390 transitions, 2865 flow
[2024-11-28 02:08:03,576 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 390 transitions, 2777 flow, removed 32 selfloop flow, removed 1 redundant places.
[2024-11-28 02:08:03,583 INFO  L231             Difference]: Finished difference. Result has 122 places, 169 transitions, 1719 flow
[2024-11-28 02:08:03,584 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1719, PETRI_PLACES=122, PETRI_TRANSITIONS=169}
[2024-11-28 02:08:03,584 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 90 predicate places.
[2024-11-28 02:08:03,585 INFO  L471      AbstractCegarLoop]: Abstraction has has 122 places, 169 transitions, 1719 flow
[2024-11-28 02:08:03,585 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 11.058823529411764) internal successors, (188), 17 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:08:03,587 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:08:03,587 INFO  L206   CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1]
[2024-11-28 02:08:03,599 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-28 02:08:03,787 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:08:03,788 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:08:03,788 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:08:03,789 INFO  L85        PathProgramCache]: Analyzing trace with hash -636300912, now seen corresponding path program 2 times
[2024-11-28 02:08:03,789 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:08:03,789 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693030310]
[2024-11-28 02:08:03,789 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-28 02:08:03,790 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:08:03,868 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-28 02:08:03,872 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-28 02:08:04,459 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:08:04,460 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:08:04,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693030310]
[2024-11-28 02:08:04,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693030310] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:08:04,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253643132]
[2024-11-28 02:08:04,460 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-28 02:08:04,460 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:08:04,460 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:08:04,462 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:08:04,466 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-28 02:08:04,747 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-28 02:08:04,748 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-28 02:08:04,752 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-28 02:08:04,758 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:08:04,790 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:04,877 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:04,946 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:05,011 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:05,106 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:08:05,106 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:08:05,283 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:08:05,283 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [253643132] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 02:08:05,283 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 02:08:05,284 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 22
[2024-11-28 02:08:05,284 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196095828]
[2024-11-28 02:08:05,284 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 02:08:05,284 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-28 02:08:05,285 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:08:05,285 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-28 02:08:05,285 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=329, Unknown=0, NotChecked=0, Total=506
[2024-11-28 02:08:05,289 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:08:05,289 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 169 transitions, 1719 flow. Second operand  has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 23 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:08:05,289 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:08:05,289 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:08:05,289 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:08:10,446 INFO  L124   PetriNetUnfolderBase]: 10636/20779 cut-off events.
[2024-11-28 02:08:10,446 INFO  L125   PetriNetUnfolderBase]: For 53576/53576 co-relation queries the response was YES.
[2024-11-28 02:08:10,539 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 58360 conditions, 20779 events. 10636/20779 cut-off events. For 53576/53576 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 150649 event pairs, 1949 based on Foata normal form. 326/21103 useless extension candidates. Maximal degree in co-relation 56400. Up to 3450 conditions per place. 
[2024-11-28 02:08:10,597 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 565 selfloop transitions, 369 changer transitions 20/959 dead transitions.
[2024-11-28 02:08:10,597 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 959 transitions, 8466 flow
[2024-11-28 02:08:10,598 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. 
[2024-11-28 02:08:10,598 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 60 states.
[2024-11-28 02:08:10,601 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 1074 transitions.
[2024-11-28 02:08:10,603 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5264705882352941
[2024-11-28 02:08:10,603 INFO  L175             Difference]: Start difference. First operand has 122 places, 169 transitions, 1719 flow. Second operand 60 states and 1074 transitions.
[2024-11-28 02:08:10,603 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 959 transitions, 8466 flow
[2024-11-28 02:08:10,977 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 959 transitions, 8312 flow, removed 75 selfloop flow, removed 1 redundant places.
[2024-11-28 02:08:10,989 INFO  L231             Difference]: Finished difference. Result has 196 places, 444 transitions, 5607 flow
[2024-11-28 02:08:10,990 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1677, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=5607, PETRI_PLACES=196, PETRI_TRANSITIONS=444}
[2024-11-28 02:08:10,991 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 164 predicate places.
[2024-11-28 02:08:10,992 INFO  L471      AbstractCegarLoop]: Abstraction has has 196 places, 444 transitions, 5607 flow
[2024-11-28 02:08:10,993 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 23 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:08:10,993 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:08:10,993 INFO  L206   CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:08:11,004 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-28 02:08:11,193 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:08:11,194 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:08:11,194 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:08:11,194 INFO  L85        PathProgramCache]: Analyzing trace with hash 520803504, now seen corresponding path program 2 times
[2024-11-28 02:08:11,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:08:11,194 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291178871]
[2024-11-28 02:08:11,194 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-28 02:08:11,195 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:08:11,291 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-28 02:08:11,291 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-28 02:08:13,275 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:08:13,275 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:08:13,275 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291178871]
[2024-11-28 02:08:13,276 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291178871] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:08:13,276 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370944788]
[2024-11-28 02:08:13,276 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-28 02:08:13,276 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:08:13,276 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:08:13,278 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:08:13,281 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-28 02:08:13,645 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-28 02:08:13,645 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-28 02:08:13,653 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-28 02:08:13,661 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:08:13,719 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-28 02:08:13,817 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14
[2024-11-28 02:08:13,929 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14
[2024-11-28 02:08:14,255 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 32
[2024-11-28 02:08:14,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:08:14,316 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:08:15,230 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:08:15,230 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [370944788] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 02:08:15,230 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 02:08:15,230 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 27
[2024-11-28 02:08:15,230 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236600038]
[2024-11-28 02:08:15,230 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 02:08:15,231 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-28 02:08:15,232 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:08:15,232 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-28 02:08:15,232 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702
[2024-11-28 02:08:15,235 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:08:15,236 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 444 transitions, 5607 flow. Second operand  has 27 states, 27 states have (on average 10.666666666666666) internal successors, (288), 27 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:08:15,236 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:08:15,236 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:08:15,236 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:08:24,887 INFO  L124   PetriNetUnfolderBase]: 20937/40607 cut-off events.
[2024-11-28 02:08:24,887 INFO  L125   PetriNetUnfolderBase]: For 180855/180855 co-relation queries the response was YES.
[2024-11-28 02:08:25,148 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 124388 conditions, 40607 events. 20937/40607 cut-off events. For 180855/180855 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 312525 event pairs, 3498 based on Foata normal form. 441/41046 useless extension candidates. Maximal degree in co-relation 122219. Up to 6855 conditions per place. 
[2024-11-28 02:08:25,261 INFO  L140   encePairwiseOnDemand]: 26/34 looper letters, 427 selfloop transitions, 702 changer transitions 26/1160 dead transitions.
[2024-11-28 02:08:25,261 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 1160 transitions, 14859 flow
[2024-11-28 02:08:25,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2024-11-28 02:08:25,262 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 34 states.
[2024-11-28 02:08:25,266 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 585 transitions.
[2024-11-28 02:08:25,267 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5060553633217993
[2024-11-28 02:08:25,268 INFO  L175             Difference]: Start difference. First operand has 196 places, 444 transitions, 5607 flow. Second operand 34 states and 585 transitions.
[2024-11-28 02:08:25,268 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 1160 transitions, 14859 flow
[2024-11-28 02:08:26,836 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 1160 transitions, 13391 flow, removed 734 selfloop flow, removed 0 redundant places.
[2024-11-28 02:08:26,851 INFO  L231             Difference]: Finished difference. Result has 250 places, 838 transitions, 11810 flow
[2024-11-28 02:08:26,851 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=5031, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=329, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=11810, PETRI_PLACES=250, PETRI_TRANSITIONS=838}
[2024-11-28 02:08:26,852 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 218 predicate places.
[2024-11-28 02:08:26,852 INFO  L471      AbstractCegarLoop]: Abstraction has has 250 places, 838 transitions, 11810 flow
[2024-11-28 02:08:26,852 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 27 states, 27 states have (on average 10.666666666666666) internal successors, (288), 27 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:08:26,852 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:08:26,853 INFO  L206   CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:08:26,860 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-28 02:08:27,053 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:08:27,053 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:08:27,054 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:08:27,054 INFO  L85        PathProgramCache]: Analyzing trace with hash 910679246, now seen corresponding path program 1 times
[2024-11-28 02:08:27,054 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:08:27,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464061992]
[2024-11-28 02:08:27,054 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:08:27,054 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:08:27,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:08:28,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 67 backedges. 7 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-28 02:08:28,096 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:08:28,096 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464061992]
[2024-11-28 02:08:28,096 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464061992] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:08:28,096 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171194227]
[2024-11-28 02:08:28,096 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:08:28,096 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:08:28,096 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:08:28,099 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:08:28,102 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-28 02:08:28,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:08:28,439 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-28 02:08:28,449 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:08:28,484 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:28,539 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:28,608 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:28,668 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:28,734 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:08:29,098 INFO  L134       CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:08:29,099 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:08:29,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 67 backedges. 34 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-28 02:08:29,196 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [171194227] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 02:08:29,196 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 02:08:29,196 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 6] total 22
[2024-11-28 02:08:29,196 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418700620]
[2024-11-28 02:08:29,196 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 02:08:29,197 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-11-28 02:08:29,197 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:08:29,197 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-11-28 02:08:29,198 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462
[2024-11-28 02:08:29,202 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:08:29,203 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 838 transitions, 11810 flow. Second operand  has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:08:29,203 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:08:29,203 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:08:29,203 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:08:48,085 INFO  L124   PetriNetUnfolderBase]: 36093/70184 cut-off events.
[2024-11-28 02:08:48,085 INFO  L125   PetriNetUnfolderBase]: For 481912/481912 co-relation queries the response was YES.
[2024-11-28 02:08:48,695 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 227066 conditions, 70184 events. 36093/70184 cut-off events. For 481912/481912 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 582321 event pairs, 4376 based on Foata normal form. 501/70671 useless extension candidates. Maximal degree in co-relation 224926. Up to 11772 conditions per place. 
[2024-11-28 02:08:48,880 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 704 selfloop transitions, 1363 changer transitions 30/2102 dead transitions.
[2024-11-28 02:08:48,880 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 2102 transitions, 27822 flow
[2024-11-28 02:08:48,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. 
[2024-11-28 02:08:48,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 65 states.
[2024-11-28 02:08:48,883 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 1142 transitions.
[2024-11-28 02:08:48,884 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5167420814479639
[2024-11-28 02:08:48,884 INFO  L175             Difference]: Start difference. First operand has 250 places, 838 transitions, 11810 flow. Second operand 65 states and 1142 transitions.
[2024-11-28 02:08:48,884 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 2102 transitions, 27822 flow
[2024-11-28 02:08:58,337 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 2102 transitions, 27464 flow, removed 172 selfloop flow, removed 2 redundant places.
[2024-11-28 02:08:58,358 INFO  L231             Difference]: Finished difference. Result has 324 places, 1513 transitions, 24044 flow
[2024-11-28 02:08:58,359 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=11635, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=838, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=728, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=65, PETRI_FLOW=24044, PETRI_PLACES=324, PETRI_TRANSITIONS=1513}
[2024-11-28 02:08:58,359 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 292 predicate places.
[2024-11-28 02:08:58,359 INFO  L471      AbstractCegarLoop]: Abstraction has has 324 places, 1513 transitions, 24044 flow
[2024-11-28 02:08:58,360 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:08:58,360 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:08:58,360 INFO  L206   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:08:58,369 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-28 02:08:58,560 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-28 02:08:58,560 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:08:58,561 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:08:58,561 INFO  L85        PathProgramCache]: Analyzing trace with hash 1277630704, now seen corresponding path program 3 times
[2024-11-28 02:08:58,561 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:08:58,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372401807]
[2024-11-28 02:08:58,561 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-28 02:08:58,562 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:08:58,903 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-28 02:08:58,903 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-28 02:09:02,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 66 backedges. 33 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:09:02,621 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:09:02,621 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372401807]
[2024-11-28 02:09:02,621 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372401807] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:09:02,622 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610062651]
[2024-11-28 02:09:02,622 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-28 02:09:02,622 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:09:02,622 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:09:02,625 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:09:02,628 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-28 02:09:03,355 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-28 02:09:03,356 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-28 02:09:03,362 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 35 conjuncts are in the unsatisfiable core
[2024-11-28 02:09:03,370 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:09:03,418 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-28 02:09:03,544 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14
[2024-11-28 02:09:03,663 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14
[2024-11-28 02:09:03,799 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14
[2024-11-28 02:09:04,569 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-28 02:09:04,570 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 38
[2024-11-28 02:09:04,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:09:04,620 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:09:05,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:09:05,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610062651] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 02:09:05,823 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 02:09:05,823 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 31
[2024-11-28 02:09:05,823 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042493665]
[2024-11-28 02:09:05,823 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 02:09:05,824 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 31 states
[2024-11-28 02:09:05,824 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:09:05,825 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants.
[2024-11-28 02:09:05,825 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930
[2024-11-28 02:09:05,829 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:09:05,829 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 1513 transitions, 24044 flow. Second operand  has 31 states, 31 states have (on average 10.774193548387096) internal successors, (334), 31 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:09:05,830 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:09:05,830 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:09:05,830 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 02:09:50,321 INFO  L124   PetriNetUnfolderBase]: 64220/124145 cut-off events.
[2024-11-28 02:09:50,321 INFO  L125   PetriNetUnfolderBase]: For 913611/913611 co-relation queries the response was YES.
[2024-11-28 02:09:51,751 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 420333 conditions, 124145 events. 64220/124145 cut-off events. For 913611/913611 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 1121117 event pairs, 10530 based on Foata normal form. 1029/125172 useless extension candidates. Maximal degree in co-relation 418041. Up to 20982 conditions per place. 
[2024-11-28 02:09:52,286 INFO  L140   encePairwiseOnDemand]: 26/34 looper letters, 869 selfloop transitions, 2365 changer transitions 42/3281 dead transitions.
[2024-11-28 02:09:52,286 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 3281 transitions, 53515 flow
[2024-11-28 02:09:52,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. 
[2024-11-28 02:09:52,287 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 55 states.
[2024-11-28 02:09:52,288 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 940 transitions.
[2024-11-28 02:09:52,289 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.5026737967914439
[2024-11-28 02:09:52,289 INFO  L175             Difference]: Start difference. First operand has 324 places, 1513 transitions, 24044 flow. Second operand 55 states and 940 transitions.
[2024-11-28 02:09:52,289 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 3281 transitions, 53515 flow
[2024-11-28 02:10:26,809 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 3281 transitions, 52779 flow, removed 361 selfloop flow, removed 2 redundant places.
[2024-11-28 02:10:26,848 INFO  L231             Difference]: Finished difference. Result has 404 places, 2665 transitions, 49348 flow
[2024-11-28 02:10:26,849 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=23661, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=49348, PETRI_PLACES=404, PETRI_TRANSITIONS=2665}
[2024-11-28 02:10:26,850 INFO  L279   CegarLoopForPetriNet]: 32 programPoint places, 372 predicate places.
[2024-11-28 02:10:26,850 INFO  L471      AbstractCegarLoop]: Abstraction has has 404 places, 2665 transitions, 49348 flow
[2024-11-28 02:10:26,850 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 31 states, 31 states have (on average 10.774193548387096) internal successors, (334), 31 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:10:26,850 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2024-11-28 02:10:26,850 INFO  L206   CegarLoopForPetriNet]: trace histogram [8, 8, 8, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 02:10:26,860 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-28 02:10:27,054 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-28 02:10:27,054 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2024-11-28 02:10:27,055 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:10:27,055 INFO  L85        PathProgramCache]: Analyzing trace with hash -1205529298, now seen corresponding path program 2 times
[2024-11-28 02:10:27,055 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:10:27,055 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342292045]
[2024-11-28 02:10:27,055 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-28 02:10:27,055 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:10:27,117 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-28 02:10:27,117 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-28 02:10:28,076 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 6 proven. 94 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-28 02:10:28,076 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:10:28,076 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342292045]
[2024-11-28 02:10:28,076 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342292045] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 02:10:28,076 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979660044]
[2024-11-28 02:10:28,076 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-28 02:10:28,076 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 02:10:28,076 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:10:28,078 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 02:10:28,079 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55e0e574-0009-4c07-8c7f-1427b82d972d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-28 02:10:28,373 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-28 02:10:28,373 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-28 02:10:28,377 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-28 02:10:28,382 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 02:10:28,395 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-28 02:10:28,809 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23
[2024-11-28 02:10:28,813 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5
[2024-11-28 02:10:28,963 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked.
[2024-11-28 02:10:28,963 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 02:10:29,105 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2024-11-28 02:10:29,106 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979660044] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 02:10:29,106 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 02:10:29,106 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 23
[2024-11-28 02:10:29,106 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375658866]
[2024-11-28 02:10:29,106 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 02:10:29,106 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-28 02:10:29,107 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:10:29,107 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-28 02:10:29,107 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506
[2024-11-28 02:10:29,109 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-28 02:10:29,110 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 2665 transitions, 49348 flow. Second operand  has 23 states, 23 states have (on average 11.26086956521739) internal successors, (259), 23 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 02:10:29,110 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 02:10:29,110 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-28 02:10:29,110 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand