./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:46:59,114 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:46:59,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 00:46:59,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:46:59,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:46:59,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:46:59,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:46:59,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:46:59,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:46:59,285 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:46:59,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:46:59,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:46:59,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:46:59,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:46:59,286 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:46:59,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:46:59,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 00:46:59,286 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:46:59,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 00:46:59,286 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:46:59,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:46:59,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 00:46:59,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:46:59,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 00:46:59,287 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:46:59,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 00:46:59,287 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:46:59,287 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:46:59,287 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:46:59,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:46:59,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:46:59,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:46:59,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:46:59,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:46:59,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:46:59,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:46:59,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:46:59,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:46:59,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:46:59,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:46:59,289 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 00:46:59,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 00:46:59,289 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 00:46:59,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:46:59,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:46:59,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:46:59,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:46:59,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:46:59,290 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_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660
[2024-11-24 00:46:59,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:46:59,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:46:59,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:46:59,660 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:46:59,660 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:46:59,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c
[2024-11-24 00:47:03,386 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/data/ea99c8b0c/aee35dba6a77486599e5ecd242bb5aed/FLAG053b61d2c
[2024-11-24 00:47:03,804 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:47:03,805 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c
[2024-11-24 00:47:03,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/data/ea99c8b0c/aee35dba6a77486599e5ecd242bb5aed/FLAG053b61d2c
[2024-11-24 00:47:03,842 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/data/ea99c8b0c/aee35dba6a77486599e5ecd242bb5aed
[2024-11-24 00:47:03,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:47:03,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:47:03,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:47:03,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:47:03,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:47:03,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:47:03" (1/1) ...
[2024-11-24 00:47:03,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d1cdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:03, skipping insertion in model container
[2024-11-24 00:47:03,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:47:03" (1/1) ...
[2024-11-24 00:47:03,906 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:47:04,332 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_de30c646-852d-41e0-bfd4-e4cf3224121e/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12847,12860]
[2024-11-24 00:47:04,356 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:47:04,375 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:47:04,507 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_de30c646-852d-41e0-bfd4-e4cf3224121e/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12847,12860]
[2024-11-24 00:47:04,512 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:47:04,540 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:47:04,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04 WrapperNode
[2024-11-24 00:47:04,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:47:04,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:47:04,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:47:04,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:47:04,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,594 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,715 INFO L138 Inliner]: procedures = 24, calls = 297, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1547
[2024-11-24 00:47:04,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:47:04,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:47:04,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:47:04,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:47:04,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,752 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,792 INFO L175 MemorySlicer]: Split 186 memory accesses to 2 slices as follows [2, 184]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8].
[2024-11-24 00:47:04,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,838 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:47:04,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:47:04,913 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:47:04,913 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:47:04,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (1/1) ...
[2024-11-24 00:47:04,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:47:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:47:04,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:47:04,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:47:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:47:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-24 00:47:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-24 00:47:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-24 00:47:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-24 00:47:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:47:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-24 00:47:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-24 00:47:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-24 00:47:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-24 00:47:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-24 00:47:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-24 00:47:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:47:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:47:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 00:47:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-24 00:47:05,012 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-24 00:47:05,307 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:47:05,310 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:47:07,865 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-24 00:47:07,865 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:47:10,517 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:47:10,517 INFO L312 CfgBuilder]: Removed 12 assume(true) statements.
[2024-11-24 00:47:10,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:47:10 BoogieIcfgContainer
[2024-11-24 00:47:10,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:47:10,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:47:10,522 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:47:10,528 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:47:10,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:47:03" (1/3) ...
[2024-11-24 00:47:10,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bd8c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:47:10, skipping insertion in model container
[2024-11-24 00:47:10,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:04" (2/3) ...
[2024-11-24 00:47:10,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bd8c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:47:10, skipping insertion in model container
[2024-11-24 00:47:10,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:47:10" (3/3) ...
[2024-11-24 00:47:10,533 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c
[2024-11-24 00:47:10,553 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:47:10,555 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-poker-hand-symm.wvr.c that has 3 procedures, 67 locations, 1 initial locations, 12 loop locations, and 1 error locations.
[2024-11-24 00:47:10,556 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-24 00:47:11,079 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-24 00:47:11,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 94 transitions, 202 flow
[2024-11-24 00:47:11,252 INFO L124 PetriNetUnfolderBase]: 28/92 cut-off events.
[2024-11-24 00:47:11,255 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-24 00:47:11,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 28/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 241 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 71. Up to 7 conditions per place.
[2024-11-24 00:47:11,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 94 transitions, 202 flow
[2024-11-24 00:47:11,269 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 91 transitions, 194 flow
[2024-11-24 00:47:11,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:47:11,311 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;@3e01a104, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:47:11,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2024-11-24 00:47:11,390 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-24 00:47:11,390 INFO L124 PetriNetUnfolderBase]: 28/90 cut-off events.
[2024-11-24 00:47:11,390 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-24 00:47:11,391 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:11,391 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:11,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:11,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1306831955, now seen corresponding path program 1 times
[2024-11-24 00:47:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:11,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834680766]
[2024-11-24 00:47:11,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:11,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:47:12,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:12,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834680766]
[2024-11-24 00:47:12,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834680766] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:12,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:12,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:47:12,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730164726]
[2024-11-24 00:47:12,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:12,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:47:12,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:12,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:47:12,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:47:12,468 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:12,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 91 transitions, 194 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)
[2024-11-24 00:47:12,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:12,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:12,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:14,521 INFO L124 PetriNetUnfolderBase]: 2502/3742 cut-off events.
[2024-11-24 00:47:14,522 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES.
[2024-11-24 00:47:14,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7562 conditions, 3742 events. 2502/3742 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17704 event pairs, 1702 based on Foata normal form. 0/2942 useless extension candidates. Maximal degree in co-relation 7372. Up to 3738 conditions per place.
[2024-11-24 00:47:14,564 INFO L140 encePairwiseOnDemand]: 81/94 looper letters, 82 selfloop transitions, 8 changer transitions 0/91 dead transitions.
[2024-11-24 00:47:14,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 91 transitions, 374 flow
[2024-11-24 00:47:14,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:47:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:47:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions.
[2024-11-24 00:47:14,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37943262411347517
[2024-11-24 00:47:14,591 INFO L175 Difference]: Start difference. First operand has 70 places, 91 transitions, 194 flow. Second operand 3 states and 107 transitions.
[2024-11-24 00:47:14,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 91 transitions, 374 flow
[2024-11-24 00:47:14,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 91 transitions, 366 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-24 00:47:14,610 INFO L231 Difference]: Finished difference. Result has 69 places, 91 transitions, 220 flow
[2024-11-24 00:47:14,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=69, PETRI_TRANSITIONS=91}
[2024-11-24 00:47:14,621 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -1 predicate places.
[2024-11-24 00:47:14,622 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 91 transitions, 220 flow
[2024-11-24 00:47:14,622 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)
[2024-11-24 00:47:14,622 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:14,622 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:14,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:47:14,624 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:14,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash -547896688, now seen corresponding path program 1 times
[2024-11-24 00:47:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:14,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808232637]
[2024-11-24 00:47:14,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-24 00:47:15,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:15,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808232637]
[2024-11-24 00:47:15,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808232637] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:47:15,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798146084]
[2024-11-24 00:47:15,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:15,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:47:15,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:47:15,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 00:47:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:15,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 00:47:15,808 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:47:15,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-24 00:47:15,862 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:47:15,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798146084] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:15,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:47:15,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5
[2024-11-24 00:47:15,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187756415]
[2024-11-24 00:47:15,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:15,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:47:15,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:15,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:47:15,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:47:15,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:15,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 91 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:15,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:15,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:15,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:17,746 INFO L124 PetriNetUnfolderBase]: 2502/3746 cut-off events.
[2024-11-24 00:47:17,746 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES.
[2024-11-24 00:47:17,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7537 conditions, 3746 events. 2502/3746 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17705 event pairs, 1702 based on Foata normal form. 1/2951 useless extension candidates. Maximal degree in co-relation 7484. Up to 3742 conditions per place.
[2024-11-24 00:47:17,771 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 86 selfloop transitions, 8 changer transitions 0/95 dead transitions.
[2024-11-24 00:47:17,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 95 transitions, 416 flow
[2024-11-24 00:47:17,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:47:17,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:47:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions.
[2024-11-24 00:47:17,776 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36524822695035464
[2024-11-24 00:47:17,776 INFO L175 Difference]: Start difference. First operand has 69 places, 91 transitions, 220 flow. Second operand 3 states and 103 transitions.
[2024-11-24 00:47:17,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 95 transitions, 416 flow
[2024-11-24 00:47:17,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 95 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:47:17,781 INFO L231 Difference]: Finished difference. Result has 71 places, 95 transitions, 256 flow
[2024-11-24 00:47:17,781 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=71, PETRI_TRANSITIONS=95}
[2024-11-24 00:47:17,782 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 1 predicate places.
[2024-11-24 00:47:17,782 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 95 transitions, 256 flow
[2024-11-24 00:47:17,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:17,782 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:17,782 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:17,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-24 00:47:17,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:17,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:17,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:17,984 INFO L85 PathProgramCache]: Analyzing trace with hash -118009244, now seen corresponding path program 1 times
[2024-11-24 00:47:17,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:17,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102590556]
[2024-11-24 00:47:17,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:17,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-24 00:47:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:18,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102590556]
[2024-11-24 00:47:18,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102590556] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:47:18,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595979139]
[2024-11-24 00:47:18,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:18,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:18,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:47:18,429 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:47:18,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 00:47:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:18,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:47:19,003 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:47:19,047 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-24 00:47:19,049 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:47:19,108 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-24 00:47:19,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595979139] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:47:19,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:47:19,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8
[2024-11-24 00:47:19,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449063437]
[2024-11-24 00:47:19,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:47:19,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 00:47:19,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:19,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 00:47:19,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-24 00:47:19,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:19,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 95 transitions, 256 flow. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:19,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:19,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:19,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:20,815 INFO L124 PetriNetUnfolderBase]: 2502/3770 cut-off events.
[2024-11-24 00:47:20,816 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES.
[2024-11-24 00:47:20,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7624 conditions, 3770 events. 2502/3770 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17705 event pairs, 1702 based on Foata normal form. 12/2986 useless extension candidates. Maximal degree in co-relation 7504. Up to 3738 conditions per place.
[2024-11-24 00:47:20,836 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 78 selfloop transitions, 40 changer transitions 0/119 dead transitions.
[2024-11-24 00:47:20,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 119 transitions, 588 flow
[2024-11-24 00:47:20,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 00:47:20,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-11-24 00:47:20,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions.
[2024-11-24 00:47:20,839 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.22074468085106383
[2024-11-24 00:47:20,840 INFO L175 Difference]: Start difference. First operand has 71 places, 95 transitions, 256 flow. Second operand 8 states and 166 transitions.
[2024-11-24 00:47:20,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 119 transitions, 588 flow
[2024-11-24 00:47:20,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 119 transitions, 580 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:47:20,844 INFO L231 Difference]: Finished difference. Result has 80 places, 119 transitions, 486 flow
[2024-11-24 00:47:20,844 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=486, PETRI_PLACES=80, PETRI_TRANSITIONS=119}
[2024-11-24 00:47:20,845 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 10 predicate places.
[2024-11-24 00:47:20,846 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 119 transitions, 486 flow
[2024-11-24 00:47:20,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:20,846 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:20,846 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:20,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-24 00:47:21,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:21,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:21,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:21,053 INFO L85 PathProgramCache]: Analyzing trace with hash 826520661, now seen corresponding path program 2 times
[2024-11-24 00:47:21,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:21,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467301105]
[2024-11-24 00:47:21,053 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:47:21,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:21,143 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:47:21,143 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:47:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2024-11-24 00:47:21,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:21,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467301105]
[2024-11-24 00:47:21,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467301105] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:21,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:21,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:47:21,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875712114]
[2024-11-24 00:47:21,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:21,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:47:21,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:21,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:47:21,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:47:21,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:21,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 119 transitions, 486 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:21,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:21,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:21,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:24,138 INFO L124 PetriNetUnfolderBase]: 3916/5914 cut-off events.
[2024-11-24 00:47:24,138 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES.
[2024-11-24 00:47:24,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11991 conditions, 5914 events. 3916/5914 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 30656 event pairs, 1413 based on Foata normal form. 1/4706 useless extension candidates. Maximal degree in co-relation 11819. Up to 3014 conditions per place.
[2024-11-24 00:47:24,178 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 193 selfloop transitions, 22 changer transitions 9/225 dead transitions.
[2024-11-24 00:47:24,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 225 transitions, 1152 flow
[2024-11-24 00:47:24,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:47:24,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:47:24,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 209 transitions.
[2024-11-24 00:47:24,181 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44468085106382976
[2024-11-24 00:47:24,181 INFO L175 Difference]: Start difference. First operand has 80 places, 119 transitions, 486 flow. Second operand 5 states and 209 transitions.
[2024-11-24 00:47:24,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 225 transitions, 1152 flow
[2024-11-24 00:47:24,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 225 transitions, 1070 flow, removed 29 selfloop flow, removed 3 redundant places.
[2024-11-24 00:47:24,192 INFO L231 Difference]: Finished difference. Result has 84 places, 137 transitions, 547 flow
[2024-11-24 00:47:24,193 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=547, PETRI_PLACES=84, PETRI_TRANSITIONS=137}
[2024-11-24 00:47:24,193 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 14 predicate places.
[2024-11-24 00:47:24,194 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 137 transitions, 547 flow
[2024-11-24 00:47:24,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:24,194 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:24,194 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:24,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 00:47:24,195 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:24,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:24,196 INFO L85 PathProgramCache]: Analyzing trace with hash -383215477, now seen corresponding path program 3 times
[2024-11-24 00:47:24,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:24,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551051020]
[2024-11-24 00:47:24,196 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:47:24,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:24,275 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2024-11-24 00:47:24,275 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:47:25,005 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2024-11-24 00:47:25,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:25,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551051020]
[2024-11-24 00:47:25,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551051020] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:25,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:25,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:47:25,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557840851]
[2024-11-24 00:47:25,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:25,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:47:25,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:25,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:47:25,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:47:25,009 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:25,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 137 transitions, 547 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:25,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:25,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:25,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:27,761 INFO L124 PetriNetUnfolderBase]: 4031/6130 cut-off events.
[2024-11-24 00:47:27,761 INFO L125 PetriNetUnfolderBase]: For 866/866 co-relation queries the response was YES.
[2024-11-24 00:47:27,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14724 conditions, 6130 events. 4031/6130 cut-off events. For 866/866 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 32437 event pairs, 1419 based on Foata normal form. 1/4889 useless extension candidates. Maximal degree in co-relation 14691. Up to 3289 conditions per place.
[2024-11-24 00:47:27,793 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 191 selfloop transitions, 22 changer transitions 9/223 dead transitions.
[2024-11-24 00:47:27,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 223 transitions, 1190 flow
[2024-11-24 00:47:27,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:47:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:47:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 207 transitions.
[2024-11-24 00:47:27,796 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44042553191489364
[2024-11-24 00:47:27,796 INFO L175 Difference]: Start difference. First operand has 84 places, 137 transitions, 547 flow. Second operand 5 states and 207 transitions.
[2024-11-24 00:47:27,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 223 transitions, 1190 flow
[2024-11-24 00:47:27,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 223 transitions, 1182 flow, removed 3 selfloop flow, removed 1 redundant places.
[2024-11-24 00:47:27,824 INFO L231 Difference]: Finished difference. Result has 89 places, 137 transitions, 597 flow
[2024-11-24 00:47:27,824 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=597, PETRI_PLACES=89, PETRI_TRANSITIONS=137}
[2024-11-24 00:47:27,825 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 19 predicate places.
[2024-11-24 00:47:27,827 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 137 transitions, 597 flow
[2024-11-24 00:47:27,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:27,827 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:27,830 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:27,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 00:47:27,830 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:27,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:27,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1225367404, now seen corresponding path program 1 times
[2024-11-24 00:47:27,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:27,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522344486]
[2024-11-24 00:47:27,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:27,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-11-24 00:47:28,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:28,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522344486]
[2024-11-24 00:47:28,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522344486] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:47:28,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704136707]
[2024-11-24 00:47:28,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:28,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:28,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:47:28,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:47:28,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 00:47:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:28,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 00:47:28,975 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:47:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-11-24 00:47:29,094 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:47:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-11-24 00:47:29,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704136707] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:47:29,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:47:29,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2024-11-24 00:47:29,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624165621]
[2024-11-24 00:47:29,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:47:29,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-24 00:47:29,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:29,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-24 00:47:29,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156
[2024-11-24 00:47:29,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:29,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 137 transitions, 597 flow. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:29,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:29,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:29,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:31,101 INFO L124 PetriNetUnfolderBase]: 4018/6110 cut-off events.
[2024-11-24 00:47:31,101 INFO L125 PetriNetUnfolderBase]: For 2556/2556 co-relation queries the response was YES.
[2024-11-24 00:47:31,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15579 conditions, 6110 events. 4018/6110 cut-off events. For 2556/2556 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 31887 event pairs, 2847 based on Foata normal form. 1/4869 useless extension candidates. Maximal degree in co-relation 15543. Up to 6072 conditions per place.
[2024-11-24 00:47:31,131 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 96 selfloop transitions, 44 changer transitions 0/141 dead transitions.
[2024-11-24 00:47:31,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 141 transitions, 901 flow
[2024-11-24 00:47:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-24 00:47:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-11-24 00:47:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 159 transitions.
[2024-11-24 00:47:31,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.15377176015473887
[2024-11-24 00:47:31,134 INFO L175 Difference]: Start difference. First operand has 89 places, 137 transitions, 597 flow. Second operand 11 states and 159 transitions.
[2024-11-24 00:47:31,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 141 transitions, 901 flow
[2024-11-24 00:47:31,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 141 transitions, 876 flow, removed 1 selfloop flow, removed 3 redundant places.
[2024-11-24 00:47:31,161 INFO L231 Difference]: Finished difference. Result has 97 places, 141 transitions, 702 flow
[2024-11-24 00:47:31,162 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=702, PETRI_PLACES=97, PETRI_TRANSITIONS=141}
[2024-11-24 00:47:31,162 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 27 predicate places.
[2024-11-24 00:47:31,163 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 141 transitions, 702 flow
[2024-11-24 00:47:31,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:31,163 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:31,163 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:31,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-24 00:47:31,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:31,368 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:31,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:31,369 INFO L85 PathProgramCache]: Analyzing trace with hash -623470080, now seen corresponding path program 2 times
[2024-11-24 00:47:31,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:31,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922382645]
[2024-11-24 00:47:31,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:47:31,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:31,539 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:47:31,540 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:47:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-11-24 00:47:31,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:31,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922382645]
[2024-11-24 00:47:31,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922382645] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:31,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:31,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:47:31,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229331876]
[2024-11-24 00:47:31,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:31,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:47:31,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:31,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:47:31,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:47:31,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:31,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 141 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:31,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:31,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:31,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:33,758 INFO L124 PetriNetUnfolderBase]: 4278/6606 cut-off events.
[2024-11-24 00:47:33,758 INFO L125 PetriNetUnfolderBase]: For 1413/1413 co-relation queries the response was YES.
[2024-11-24 00:47:33,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16602 conditions, 6606 events. 4278/6606 cut-off events. For 1413/1413 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 35987 event pairs, 2723 based on Foata normal form. 70/5360 useless extension candidates. Maximal degree in co-relation 16351. Up to 5593 conditions per place.
[2024-11-24 00:47:33,800 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 177 selfloop transitions, 3 changer transitions 1/182 dead transitions.
[2024-11-24 00:47:33,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 182 transitions, 1175 flow
[2024-11-24 00:47:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:47:33,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:47:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions.
[2024-11-24 00:47:33,806 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48936170212765956
[2024-11-24 00:47:33,807 INFO L175 Difference]: Start difference. First operand has 97 places, 141 transitions, 702 flow. Second operand 3 states and 138 transitions.
[2024-11-24 00:47:33,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 182 transitions, 1175 flow
[2024-11-24 00:47:33,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 182 transitions, 1095 flow, removed 8 selfloop flow, removed 6 redundant places.
[2024-11-24 00:47:33,837 INFO L231 Difference]: Finished difference. Result has 94 places, 141 transitions, 633 flow
[2024-11-24 00:47:33,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=633, PETRI_PLACES=94, PETRI_TRANSITIONS=141}
[2024-11-24 00:47:33,840 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 24 predicate places.
[2024-11-24 00:47:33,840 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 141 transitions, 633 flow
[2024-11-24 00:47:33,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:33,844 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:33,844 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:33,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 00:47:33,844 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:33,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:33,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1180591388, now seen corresponding path program 1 times
[2024-11-24 00:47:33,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:33,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605387287]
[2024-11-24 00:47:33,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:33,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked.
[2024-11-24 00:47:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:34,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605387287]
[2024-11-24 00:47:34,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605387287] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:47:34,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487603775]
[2024-11-24 00:47:34,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:34,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:34,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:47:34,445 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:47:34,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-24 00:47:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:35,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-24 00:47:35,131 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:47:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked.
[2024-11-24 00:47:35,316 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:47:35,518 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked.
[2024-11-24 00:47:35,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487603775] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:47:35,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:47:35,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20
[2024-11-24 00:47:35,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914089682]
[2024-11-24 00:47:35,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:47:35,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-24 00:47:35,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:35,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-24 00:47:35,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=205, Unknown=0, NotChecked=0, Total=380
[2024-11-24 00:47:35,521 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:35,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 141 transitions, 633 flow. Second operand has 20 states, 20 states have (on average 5.7) internal successors, (114), 20 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:35,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:35,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:35,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:37,656 INFO L124 PetriNetUnfolderBase]: 4278/6620 cut-off events.
[2024-11-24 00:47:37,656 INFO L125 PetriNetUnfolderBase]: For 1673/1673 co-relation queries the response was YES.
[2024-11-24 00:47:37,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16883 conditions, 6620 events. 4278/6620 cut-off events. For 1673/1673 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 35926 event pairs, 3164 based on Foata normal form. 14/5318 useless extension candidates. Maximal degree in co-relation 16634. Up to 6566 conditions per place.
[2024-11-24 00:47:37,684 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 96 selfloop transitions, 58 changer transitions 0/155 dead transitions.
[2024-11-24 00:47:37,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 155 transitions, 1053 flow
[2024-11-24 00:47:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-24 00:47:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2024-11-24 00:47:37,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 192 transitions.
[2024-11-24 00:47:37,687 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.1458966565349544
[2024-11-24 00:47:37,687 INFO L175 Difference]: Start difference. First operand has 94 places, 141 transitions, 633 flow. Second operand 14 states and 192 transitions.
[2024-11-24 00:47:37,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 155 transitions, 1053 flow
[2024-11-24 00:47:37,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 155 transitions, 1050 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:47:37,708 INFO L231 Difference]: Finished difference. Result has 113 places, 155 transitions, 956 flow
[2024-11-24 00:47:37,709 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=956, PETRI_PLACES=113, PETRI_TRANSITIONS=155}
[2024-11-24 00:47:37,710 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 43 predicate places.
[2024-11-24 00:47:37,710 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 155 transitions, 956 flow
[2024-11-24 00:47:37,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.7) internal successors, (114), 20 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:37,710 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:37,711 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:37,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-24 00:47:37,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:37,912 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:37,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:37,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1268348614, now seen corresponding path program 2 times
[2024-11-24 00:47:37,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:37,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656000046]
[2024-11-24 00:47:37,913 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:47:37,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:37,990 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:47:37,990 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:47:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked.
[2024-11-24 00:47:38,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656000046]
[2024-11-24 00:47:38,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656000046] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:38,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:38,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:47:38,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497107697]
[2024-11-24 00:47:38,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:38,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:47:38,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:38,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:47:38,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:47:38,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:38,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 155 transitions, 956 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:38,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:38,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:38,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:40,890 INFO L124 PetriNetUnfolderBase]: 4557/7166 cut-off events.
[2024-11-24 00:47:40,890 INFO L125 PetriNetUnfolderBase]: For 1859/1859 co-relation queries the response was YES.
[2024-11-24 00:47:40,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18023 conditions, 7166 events. 4557/7166 cut-off events. For 1859/1859 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 40344 event pairs, 2956 based on Foata normal form. 75/5842 useless extension candidates. Maximal degree in co-relation 17682. Up to 6021 conditions per place.
[2024-11-24 00:47:40,954 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 190 selfloop transitions, 3 changer transitions 1/195 dead transitions.
[2024-11-24 00:47:40,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 195 transitions, 1456 flow
[2024-11-24 00:47:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:47:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:47:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions.
[2024-11-24 00:47:40,955 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48226950354609927
[2024-11-24 00:47:40,956 INFO L175 Difference]: Start difference. First operand has 113 places, 155 transitions, 956 flow. Second operand 3 states and 136 transitions.
[2024-11-24 00:47:40,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 195 transitions, 1456 flow
[2024-11-24 00:47:40,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 195 transitions, 1384 flow, removed 28 selfloop flow, removed 1 redundant places.
[2024-11-24 00:47:40,982 INFO L231 Difference]: Finished difference. Result has 115 places, 155 transitions, 895 flow
[2024-11-24 00:47:40,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=895, PETRI_PLACES=115, PETRI_TRANSITIONS=155}
[2024-11-24 00:47:40,985 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 45 predicate places.
[2024-11-24 00:47:40,985 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 155 transitions, 895 flow
[2024-11-24 00:47:40,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:40,986 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:40,986 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:40,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-24 00:47:40,986 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:40,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:40,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1219968359, now seen corresponding path program 1 times
[2024-11-24 00:47:40,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:40,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957587597]
[2024-11-24 00:47:40,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:40,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked.
[2024-11-24 00:47:41,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:41,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957587597]
[2024-11-24 00:47:41,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957587597] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:47:41,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822808842]
[2024-11-24 00:47:41,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:41,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:47:41,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:47:41,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:47:41,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-24 00:47:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:42,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-24 00:47:42,699 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:47:43,184 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked.
[2024-11-24 00:47:43,184 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:47:43,751 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked.
[2024-11-24 00:47:43,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822808842] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:47:43,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:47:43,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 41
[2024-11-24 00:47:43,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609316797]
[2024-11-24 00:47:43,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:47:43,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states
[2024-11-24 00:47:43,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:43,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants.
[2024-11-24 00:47:43,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=1054, Unknown=0, NotChecked=0, Total=1640
[2024-11-24 00:47:43,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:43,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 155 transitions, 895 flow. Second operand has 41 states, 41 states have (on average 4.829268292682927) internal successors, (198), 41 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:43,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:43,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:43,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:46,178 INFO L124 PetriNetUnfolderBase]: 4557/7168 cut-off events.
[2024-11-24 00:47:46,178 INFO L125 PetriNetUnfolderBase]: For 2122/2122 co-relation queries the response was YES.
[2024-11-24 00:47:46,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18285 conditions, 7168 events. 4557/7168 cut-off events. For 2122/2122 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 40390 event pairs, 3502 based on Foata normal form. 2/5771 useless extension candidates. Maximal degree in co-relation 17911. Up to 7109 conditions per place.
[2024-11-24 00:47:46,215 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 96 selfloop transitions, 60 changer transitions 0/157 dead transitions.
[2024-11-24 00:47:46,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 157 transitions, 1227 flow
[2024-11-24 00:47:46,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-11-24 00:47:46,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2024-11-24 00:47:46,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 200 transitions.
[2024-11-24 00:47:46,218 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.10638297872340426
[2024-11-24 00:47:46,218 INFO L175 Difference]: Start difference. First operand has 115 places, 155 transitions, 895 flow. Second operand 20 states and 200 transitions.
[2024-11-24 00:47:46,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 157 transitions, 1227 flow
[2024-11-24 00:47:46,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 157 transitions, 1224 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:47:46,244 INFO L231 Difference]: Finished difference. Result has 134 places, 157 transitions, 1042 flow
[2024-11-24 00:47:46,245 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1042, PETRI_PLACES=134, PETRI_TRANSITIONS=157}
[2024-11-24 00:47:46,245 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 64 predicate places.
[2024-11-24 00:47:46,246 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 157 transitions, 1042 flow
[2024-11-24 00:47:46,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.829268292682927) internal successors, (198), 41 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:46,246 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:46,246 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:46,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-24 00:47:46,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-24 00:47:46,451 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:46,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:46,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2056574993, now seen corresponding path program 2 times
[2024-11-24 00:47:46,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:46,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188993278]
[2024-11-24 00:47:46,453 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:47:46,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:46,537 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:47:46,537 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:47:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:47:47,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:47,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188993278]
[2024-11-24 00:47:47,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188993278] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:47,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:47,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:47:47,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936825749]
[2024-11-24 00:47:47,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:47,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:47:47,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:47,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:47:47,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:47:47,116 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:47,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 157 transitions, 1042 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:47,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:47,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:47,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:50,012 INFO L124 PetriNetUnfolderBase]: 4899/7883 cut-off events.
[2024-11-24 00:47:50,012 INFO L125 PetriNetUnfolderBase]: For 2351/2351 co-relation queries the response was YES.
[2024-11-24 00:47:50,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19739 conditions, 7883 events. 4899/7883 cut-off events. For 2351/2351 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 47391 event pairs, 2619 based on Foata normal form. 160/6517 useless extension candidates. Maximal degree in co-relation 19307. Up to 5346 conditions per place.
[2024-11-24 00:47:50,062 INFO L140 encePairwiseOnDemand]: 78/94 looper letters, 200 selfloop transitions, 11 changer transitions 9/221 dead transitions.
[2024-11-24 00:47:50,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 221 transitions, 1672 flow
[2024-11-24 00:47:50,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:47:50,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:47:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions.
[2024-11-24 00:47:50,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5780141843971631
[2024-11-24 00:47:50,064 INFO L175 Difference]: Start difference. First operand has 134 places, 157 transitions, 1042 flow. Second operand 3 states and 163 transitions.
[2024-11-24 00:47:50,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 221 transitions, 1672 flow
[2024-11-24 00:47:50,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 221 transitions, 1520 flow, removed 22 selfloop flow, removed 13 redundant places.
[2024-11-24 00:47:50,101 INFO L231 Difference]: Finished difference. Result has 125 places, 166 transitions, 1030 flow
[2024-11-24 00:47:50,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1030, PETRI_PLACES=125, PETRI_TRANSITIONS=166}
[2024-11-24 00:47:50,102 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 55 predicate places.
[2024-11-24 00:47:50,103 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 166 transitions, 1030 flow
[2024-11-24 00:47:50,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:50,103 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:50,103 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:50,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-24 00:47:50,103 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:50,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1255358503, now seen corresponding path program 3 times
[2024-11-24 00:47:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:50,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597403021]
[2024-11-24 00:47:50,111 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:47:50,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:50,254 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2024-11-24 00:47:50,256 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:47:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:47:50,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:50,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597403021]
[2024-11-24 00:47:50,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597403021] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:50,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:50,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:47:50,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978015333]
[2024-11-24 00:47:50,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:50,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:47:50,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:50,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:47:50,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:47:50,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:50,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 166 transitions, 1030 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:50,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:50,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:50,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:52,386 INFO L124 PetriNetUnfolderBase]: 4311/6969 cut-off events.
[2024-11-24 00:47:52,386 INFO L125 PetriNetUnfolderBase]: For 4378/4378 co-relation queries the response was YES.
[2024-11-24 00:47:52,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18545 conditions, 6969 events. 4311/6969 cut-off events. For 4378/4378 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 40827 event pairs, 2219 based on Foata normal form. 91/5655 useless extension candidates. Maximal degree in co-relation 18217. Up to 3963 conditions per place.
[2024-11-24 00:47:52,441 INFO L140 encePairwiseOnDemand]: 80/94 looper letters, 195 selfloop transitions, 17 changer transitions 4/217 dead transitions.
[2024-11-24 00:47:52,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 217 transitions, 1625 flow
[2024-11-24 00:47:52,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:47:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:47:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions.
[2024-11-24 00:47:52,442 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.524822695035461
[2024-11-24 00:47:52,443 INFO L175 Difference]: Start difference. First operand has 125 places, 166 transitions, 1030 flow. Second operand 3 states and 148 transitions.
[2024-11-24 00:47:52,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 217 transitions, 1625 flow
[2024-11-24 00:47:52,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 217 transitions, 1613 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-24 00:47:52,483 INFO L231 Difference]: Finished difference. Result has 127 places, 178 transitions, 1202 flow
[2024-11-24 00:47:52,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1202, PETRI_PLACES=127, PETRI_TRANSITIONS=178}
[2024-11-24 00:47:52,484 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 57 predicate places.
[2024-11-24 00:47:52,484 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 178 transitions, 1202 flow
[2024-11-24 00:47:52,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:52,485 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:52,485 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:52,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-24 00:47:52,485 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:52,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1462992385, now seen corresponding path program 1 times
[2024-11-24 00:47:52,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:52,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629442863]
[2024-11-24 00:47:52,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:52,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:47:53,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629442863]
[2024-11-24 00:47:53,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629442863] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:53,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:53,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:47:53,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169548178]
[2024-11-24 00:47:53,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:53,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:47:53,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:53,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:47:53,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:47:53,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:53,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 178 transitions, 1202 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:53,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:53,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:53,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:55,514 INFO L124 PetriNetUnfolderBase]: 4091/6639 cut-off events.
[2024-11-24 00:47:55,514 INFO L125 PetriNetUnfolderBase]: For 6203/6203 co-relation queries the response was YES.
[2024-11-24 00:47:55,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18408 conditions, 6639 events. 4091/6639 cut-off events. For 6203/6203 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 38969 event pairs, 2109 based on Foata normal form. 81/5344 useless extension candidates. Maximal degree in co-relation 18079. Up to 3719 conditions per place.
[2024-11-24 00:47:55,552 INFO L140 encePairwiseOnDemand]: 81/94 looper letters, 185 selfloop transitions, 4 changer transitions 18/208 dead transitions.
[2024-11-24 00:47:55,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 208 transitions, 1635 flow
[2024-11-24 00:47:55,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:47:55,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:47:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions.
[2024-11-24 00:47:55,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5035460992907801
[2024-11-24 00:47:55,554 INFO L175 Difference]: Start difference. First operand has 127 places, 178 transitions, 1202 flow. Second operand 3 states and 142 transitions.
[2024-11-24 00:47:55,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 208 transitions, 1635 flow
[2024-11-24 00:47:55,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 208 transitions, 1625 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:47:55,595 INFO L231 Difference]: Finished difference. Result has 130 places, 174 transitions, 1166 flow
[2024-11-24 00:47:55,595 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1119, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1166, PETRI_PLACES=130, PETRI_TRANSITIONS=174}
[2024-11-24 00:47:55,596 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 60 predicate places.
[2024-11-24 00:47:55,596 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 174 transitions, 1166 flow
[2024-11-24 00:47:55,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:55,596 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:55,596 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:55,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-24 00:47:55,597 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:55,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash 960897153, now seen corresponding path program 1 times
[2024-11-24 00:47:55,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:55,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960544137]
[2024-11-24 00:47:55,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:47:55,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:47:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:47:56,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:56,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960544137]
[2024-11-24 00:47:56,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960544137] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:56,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:56,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:47:56,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628009668]
[2024-11-24 00:47:56,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:56,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:47:56,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:56,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:47:56,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:47:56,575 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:56,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 174 transitions, 1166 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:56,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:56,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:56,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:47:58,348 INFO L124 PetriNetUnfolderBase]: 4223/6902 cut-off events.
[2024-11-24 00:47:58,349 INFO L125 PetriNetUnfolderBase]: For 5763/5763 co-relation queries the response was YES.
[2024-11-24 00:47:58,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19335 conditions, 6902 events. 4223/6902 cut-off events. For 5763/5763 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 41173 event pairs, 1571 based on Foata normal form. 1/5492 useless extension candidates. Maximal degree in co-relation 19005. Up to 4251 conditions per place.
[2024-11-24 00:47:58,387 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 214 selfloop transitions, 29 changer transitions 11/255 dead transitions.
[2024-11-24 00:47:58,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 255 transitions, 1889 flow
[2024-11-24 00:47:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:47:58,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:47:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 200 transitions.
[2024-11-24 00:47:58,389 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.425531914893617
[2024-11-24 00:47:58,389 INFO L175 Difference]: Start difference. First operand has 130 places, 174 transitions, 1166 flow. Second operand 5 states and 200 transitions.
[2024-11-24 00:47:58,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 255 transitions, 1889 flow
[2024-11-24 00:47:58,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 255 transitions, 1885 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:47:58,425 INFO L231 Difference]: Finished difference. Result has 135 places, 174 transitions, 1229 flow
[2024-11-24 00:47:58,426 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1162, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1229, PETRI_PLACES=135, PETRI_TRANSITIONS=174}
[2024-11-24 00:47:58,428 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 65 predicate places.
[2024-11-24 00:47:58,428 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 174 transitions, 1229 flow
[2024-11-24 00:47:58,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:58,428 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:47:58,429 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:47:58,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-24 00:47:58,429 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:47:58,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:47:58,430 INFO L85 PathProgramCache]: Analyzing trace with hash 751587705, now seen corresponding path program 2 times
[2024-11-24 00:47:58,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:47:58,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179491140]
[2024-11-24 00:47:58,431 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:47:58,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:47:58,506 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:47:58,506 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:47:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:47:58,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:47:58,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179491140]
[2024-11-24 00:47:58,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179491140] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:47:58,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:47:58,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:47:58,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967565763]
[2024-11-24 00:47:58,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:47:58,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:47:58,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:47:58,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:47:58,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:47:58,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:47:58,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 174 transitions, 1229 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:47:58,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:47:58,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:47:58,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:01,003 INFO L124 PetriNetUnfolderBase]: 4320/7097 cut-off events.
[2024-11-24 00:48:01,003 INFO L125 PetriNetUnfolderBase]: For 7539/7539 co-relation queries the response was YES.
[2024-11-24 00:48:01,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20426 conditions, 7097 events. 4320/7097 cut-off events. For 7539/7539 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 42926 event pairs, 1577 based on Foata normal form. 1/5659 useless extension candidates. Maximal degree in co-relation 20336. Up to 4491 conditions per place.
[2024-11-24 00:48:01,050 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 212 selfloop transitions, 29 changer transitions 11/253 dead transitions.
[2024-11-24 00:48:01,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 253 transitions, 1950 flow
[2024-11-24 00:48:01,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:48:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:48:01,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 198 transitions.
[2024-11-24 00:48:01,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42127659574468085
[2024-11-24 00:48:01,052 INFO L175 Difference]: Start difference. First operand has 135 places, 174 transitions, 1229 flow. Second operand 5 states and 198 transitions.
[2024-11-24 00:48:01,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 253 transitions, 1950 flow
[2024-11-24 00:48:01,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 253 transitions, 1915 flow, removed 2 selfloop flow, removed 3 redundant places.
[2024-11-24 00:48:01,087 INFO L231 Difference]: Finished difference. Result has 138 places, 174 transitions, 1263 flow
[2024-11-24 00:48:01,087 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1263, PETRI_PLACES=138, PETRI_TRANSITIONS=174}
[2024-11-24 00:48:01,088 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 68 predicate places.
[2024-11-24 00:48:01,088 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 174 transitions, 1263 flow
[2024-11-24 00:48:01,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:01,088 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:01,088 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:01,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-24 00:48:01,088 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:01,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:01,089 INFO L85 PathProgramCache]: Analyzing trace with hash 524779713, now seen corresponding path program 1 times
[2024-11-24 00:48:01,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:01,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680433926]
[2024-11-24 00:48:01,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:01,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:01,772 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:01,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:01,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680433926]
[2024-11-24 00:48:01,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680433926] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:01,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:01,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:01,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785973162]
[2024-11-24 00:48:01,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:01,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:01,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:01,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:01,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:01,775 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:01,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 174 transitions, 1263 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:01,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:01,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:01,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:03,571 INFO L124 PetriNetUnfolderBase]: 4270/7036 cut-off events.
[2024-11-24 00:48:03,572 INFO L125 PetriNetUnfolderBase]: For 7851/7851 co-relation queries the response was YES.
[2024-11-24 00:48:03,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20724 conditions, 7036 events. 4270/7036 cut-off events. For 7851/7851 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 43013 event pairs, 1184 based on Foata normal form. 41/5638 useless extension candidates. Maximal degree in co-relation 20632. Up to 5671 conditions per place.
[2024-11-24 00:48:03,610 INFO L140 encePairwiseOnDemand]: 78/94 looper letters, 184 selfloop transitions, 16 changer transitions 2/203 dead transitions.
[2024-11-24 00:48:03,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 203 transitions, 1691 flow
[2024-11-24 00:48:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions.
[2024-11-24 00:48:03,612 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5035460992907801
[2024-11-24 00:48:03,612 INFO L175 Difference]: Start difference. First operand has 138 places, 174 transitions, 1263 flow. Second operand 3 states and 142 transitions.
[2024-11-24 00:48:03,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 203 transitions, 1691 flow
[2024-11-24 00:48:03,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 203 transitions, 1656 flow, removed 3 selfloop flow, removed 3 redundant places.
[2024-11-24 00:48:03,635 INFO L231 Difference]: Finished difference. Result has 138 places, 171 transitions, 1236 flow
[2024-11-24 00:48:03,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1236, PETRI_PLACES=138, PETRI_TRANSITIONS=171}
[2024-11-24 00:48:03,636 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 68 predicate places.
[2024-11-24 00:48:03,636 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 171 transitions, 1236 flow
[2024-11-24 00:48:03,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:03,636 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:03,636 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:03,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-24 00:48:03,636 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:03,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:03,637 INFO L85 PathProgramCache]: Analyzing trace with hash -315887915, now seen corresponding path program 2 times
[2024-11-24 00:48:03,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:03,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229383772]
[2024-11-24 00:48:03,637 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:48:03,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:03,709 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:48:03,709 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:48:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked.
[2024-11-24 00:48:03,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:03,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229383772]
[2024-11-24 00:48:03,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229383772] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:03,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:03,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:03,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647925601]
[2024-11-24 00:48:03,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:03,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:03,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:03,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:03,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:03,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:03,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 171 transitions, 1236 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:03,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:03,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:03,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:05,740 INFO L124 PetriNetUnfolderBase]: 4170/6838 cut-off events.
[2024-11-24 00:48:05,741 INFO L125 PetriNetUnfolderBase]: For 6899/6899 co-relation queries the response was YES.
[2024-11-24 00:48:05,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20931 conditions, 6838 events. 4170/6838 cut-off events. For 6899/6899 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 40583 event pairs, 3295 based on Foata normal form. 9/5426 useless extension candidates. Maximal degree in co-relation 20594. Up to 6523 conditions per place.
[2024-11-24 00:48:05,773 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 164 selfloop transitions, 0 changer transitions 36/201 dead transitions.
[2024-11-24 00:48:05,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 201 transitions, 1686 flow
[2024-11-24 00:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:05,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions.
[2024-11-24 00:48:05,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4574468085106383
[2024-11-24 00:48:05,775 INFO L175 Difference]: Start difference. First operand has 138 places, 171 transitions, 1236 flow. Second operand 3 states and 129 transitions.
[2024-11-24 00:48:05,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 201 transitions, 1686 flow
[2024-11-24 00:48:05,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 201 transitions, 1672 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:48:05,802 INFO L231 Difference]: Finished difference. Result has 139 places, 165 transitions, 1172 flow
[2024-11-24 00:48:05,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1206, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1172, PETRI_PLACES=139, PETRI_TRANSITIONS=165}
[2024-11-24 00:48:05,803 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 69 predicate places.
[2024-11-24 00:48:05,803 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 165 transitions, 1172 flow
[2024-11-24 00:48:05,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:05,804 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:05,804 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:05,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-24 00:48:05,804 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:05,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:05,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1507629849, now seen corresponding path program 1 times
[2024-11-24 00:48:05,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:05,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22647665]
[2024-11-24 00:48:05,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:05,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:07,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:07,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22647665]
[2024-11-24 00:48:07,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22647665] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:07,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:07,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:07,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688488565]
[2024-11-24 00:48:07,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:07,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:07,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:07,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:07,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:07,223 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:07,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 165 transitions, 1172 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:07,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:07,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:07,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:08,970 INFO L124 PetriNetUnfolderBase]: 3816/6358 cut-off events.
[2024-11-24 00:48:08,970 INFO L125 PetriNetUnfolderBase]: For 6332/6332 co-relation queries the response was YES.
[2024-11-24 00:48:09,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18544 conditions, 6358 events. 3816/6358 cut-off events. For 6332/6332 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 38251 event pairs, 2185 based on Foata normal form. 100/5240 useless extension candidates. Maximal degree in co-relation 18510. Up to 3826 conditions per place.
[2024-11-24 00:48:09,018 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 179 selfloop transitions, 12 changer transitions 7/199 dead transitions.
[2024-11-24 00:48:09,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 199 transitions, 1639 flow
[2024-11-24 00:48:09,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:09,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions.
[2024-11-24 00:48:09,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4716312056737589
[2024-11-24 00:48:09,020 INFO L175 Difference]: Start difference. First operand has 139 places, 165 transitions, 1172 flow. Second operand 3 states and 133 transitions.
[2024-11-24 00:48:09,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 199 transitions, 1639 flow
[2024-11-24 00:48:09,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 199 transitions, 1583 flow, removed 15 selfloop flow, removed 3 redundant places.
[2024-11-24 00:48:09,035 INFO L231 Difference]: Finished difference. Result has 137 places, 167 transitions, 1188 flow
[2024-11-24 00:48:09,036 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1188, PETRI_PLACES=137, PETRI_TRANSITIONS=167}
[2024-11-24 00:48:09,036 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 67 predicate places.
[2024-11-24 00:48:09,037 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 167 transitions, 1188 flow
[2024-11-24 00:48:09,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:09,037 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:09,037 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:09,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-24 00:48:09,037 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:09,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:09,038 INFO L85 PathProgramCache]: Analyzing trace with hash 980916473, now seen corresponding path program 2 times
[2024-11-24 00:48:09,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:09,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026816636]
[2024-11-24 00:48:09,039 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:48:09,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:09,101 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:48:09,102 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:48:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:09,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:09,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026816636]
[2024-11-24 00:48:09,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026816636] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:09,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:09,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:09,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055031452]
[2024-11-24 00:48:09,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:09,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:09,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:09,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:09,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:09,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:09,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 167 transitions, 1188 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:09,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:09,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:09,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:11,563 INFO L124 PetriNetUnfolderBase]: 3697/6151 cut-off events.
[2024-11-24 00:48:11,564 INFO L125 PetriNetUnfolderBase]: For 5437/5437 co-relation queries the response was YES.
[2024-11-24 00:48:11,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17677 conditions, 6151 events. 3697/6151 cut-off events. For 5437/5437 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 36556 event pairs, 2839 based on Foata normal form. 54/4996 useless extension candidates. Maximal degree in co-relation 17643. Up to 5496 conditions per place.
[2024-11-24 00:48:11,615 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 180 selfloop transitions, 4 changer transitions 8/193 dead transitions.
[2024-11-24 00:48:11,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 193 transitions, 1561 flow
[2024-11-24 00:48:11,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:11,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:11,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions.
[2024-11-24 00:48:11,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4716312056737589
[2024-11-24 00:48:11,617 INFO L175 Difference]: Start difference. First operand has 137 places, 167 transitions, 1188 flow. Second operand 3 states and 133 transitions.
[2024-11-24 00:48:11,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 193 transitions, 1561 flow
[2024-11-24 00:48:11,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 193 transitions, 1555 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:48:11,634 INFO L231 Difference]: Finished difference. Result has 138 places, 161 transitions, 1112 flow
[2024-11-24 00:48:11,634 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1112, PETRI_PLACES=138, PETRI_TRANSITIONS=161}
[2024-11-24 00:48:11,634 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 68 predicate places.
[2024-11-24 00:48:11,634 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 161 transitions, 1112 flow
[2024-11-24 00:48:11,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:11,634 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:11,635 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:11,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-24 00:48:11,635 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:11,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:11,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1957054592, now seen corresponding path program 1 times
[2024-11-24 00:48:11,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:11,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026525446]
[2024-11-24 00:48:11,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:12,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:12,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026525446]
[2024-11-24 00:48:12,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026525446] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:12,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:12,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:12,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610224788]
[2024-11-24 00:48:12,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:12,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:12,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:12,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:12,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:12,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:12,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 161 transitions, 1112 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:12,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:12,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:12,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:14,696 INFO L124 PetriNetUnfolderBase]: 3867/6517 cut-off events.
[2024-11-24 00:48:14,696 INFO L125 PetriNetUnfolderBase]: For 4631/4631 co-relation queries the response was YES.
[2024-11-24 00:48:14,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18542 conditions, 6517 events. 3867/6517 cut-off events. For 4631/4631 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 39977 event pairs, 3003 based on Foata normal form. 27/5281 useless extension candidates. Maximal degree in co-relation 18508. Up to 5703 conditions per place.
[2024-11-24 00:48:14,729 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 183 selfloop transitions, 8 changer transitions 13/205 dead transitions.
[2024-11-24 00:48:14,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 205 transitions, 1639 flow
[2024-11-24 00:48:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:14,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions.
[2024-11-24 00:48:14,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-11-24 00:48:14,730 INFO L175 Difference]: Start difference. First operand has 138 places, 161 transitions, 1112 flow. Second operand 3 states and 141 transitions.
[2024-11-24 00:48:14,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 205 transitions, 1639 flow
[2024-11-24 00:48:14,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 205 transitions, 1635 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:48:14,752 INFO L231 Difference]: Finished difference. Result has 141 places, 161 transitions, 1150 flow
[2024-11-24 00:48:14,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1150, PETRI_PLACES=141, PETRI_TRANSITIONS=161}
[2024-11-24 00:48:14,752 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 71 predicate places.
[2024-11-24 00:48:14,753 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 161 transitions, 1150 flow
[2024-11-24 00:48:14,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:14,753 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:14,753 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:14,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-24 00:48:14,753 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:14,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:14,754 INFO L85 PathProgramCache]: Analyzing trace with hash -820759656, now seen corresponding path program 2 times
[2024-11-24 00:48:14,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:14,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279816428]
[2024-11-24 00:48:14,754 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:48:14,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:14,826 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:48:14,827 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:48:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:15,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:15,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279816428]
[2024-11-24 00:48:15,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279816428] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:15,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:15,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:15,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045938157]
[2024-11-24 00:48:15,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:15,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:15,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:15,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:15,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:15,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:15,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 161 transitions, 1150 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:15,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:15,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:15,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:17,191 INFO L124 PetriNetUnfolderBase]: 3579/6020 cut-off events.
[2024-11-24 00:48:17,191 INFO L125 PetriNetUnfolderBase]: For 5236/5236 co-relation queries the response was YES.
[2024-11-24 00:48:17,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17005 conditions, 6020 events. 3579/6020 cut-off events. For 5236/5236 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 36507 event pairs, 1997 based on Foata normal form. 59/4870 useless extension candidates. Maximal degree in co-relation 16970. Up to 3489 conditions per place.
[2024-11-24 00:48:17,216 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 171 selfloop transitions, 6 changer transitions 9/187 dead transitions.
[2024-11-24 00:48:17,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 187 transitions, 1497 flow
[2024-11-24 00:48:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:17,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions.
[2024-11-24 00:48:17,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4645390070921986
[2024-11-24 00:48:17,218 INFO L175 Difference]: Start difference. First operand has 141 places, 161 transitions, 1150 flow. Second operand 3 states and 131 transitions.
[2024-11-24 00:48:17,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 187 transitions, 1497 flow
[2024-11-24 00:48:17,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 187 transitions, 1445 flow, removed 10 selfloop flow, removed 3 redundant places.
[2024-11-24 00:48:17,235 INFO L231 Difference]: Finished difference. Result has 138 places, 153 transitions, 1014 flow
[2024-11-24 00:48:17,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1014, PETRI_PLACES=138, PETRI_TRANSITIONS=153}
[2024-11-24 00:48:17,235 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 68 predicate places.
[2024-11-24 00:48:17,235 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 153 transitions, 1014 flow
[2024-11-24 00:48:17,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:17,236 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:17,236 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:17,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-24 00:48:17,236 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:17,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash -245969602, now seen corresponding path program 1 times
[2024-11-24 00:48:17,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:17,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057037427]
[2024-11-24 00:48:17,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:17,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:17,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:17,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057037427]
[2024-11-24 00:48:17,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057037427] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:17,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:17,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:17,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54824846]
[2024-11-24 00:48:17,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:17,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:17,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:17,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:17,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:17,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:17,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 153 transitions, 1014 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:17,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:17,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:17,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:19,760 INFO L124 PetriNetUnfolderBase]: 3324/5604 cut-off events.
[2024-11-24 00:48:19,760 INFO L125 PetriNetUnfolderBase]: For 4189/4189 co-relation queries the response was YES.
[2024-11-24 00:48:19,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15271 conditions, 5604 events. 3324/5604 cut-off events. For 4189/4189 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 33342 event pairs, 2738 based on Foata normal form. 9/4599 useless extension candidates. Maximal degree in co-relation 15238. Up to 5179 conditions per place.
[2024-11-24 00:48:19,778 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 162 selfloop transitions, 4 changer transitions 26/193 dead transitions.
[2024-11-24 00:48:19,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 193 transitions, 1493 flow
[2024-11-24 00:48:19,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:19,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:19,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions.
[2024-11-24 00:48:19,780 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4574468085106383
[2024-11-24 00:48:19,780 INFO L175 Difference]: Start difference. First operand has 138 places, 153 transitions, 1014 flow. Second operand 3 states and 129 transitions.
[2024-11-24 00:48:19,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 193 transitions, 1493 flow
[2024-11-24 00:48:19,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 193 transitions, 1487 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:48:19,794 INFO L231 Difference]: Finished difference. Result has 138 places, 151 transitions, 996 flow
[2024-11-24 00:48:19,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=996, PETRI_PLACES=138, PETRI_TRANSITIONS=151}
[2024-11-24 00:48:19,795 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 68 predicate places.
[2024-11-24 00:48:19,795 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 151 transitions, 996 flow
[2024-11-24 00:48:19,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:19,796 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:19,796 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:19,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-24 00:48:19,796 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:19,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash 982237066, now seen corresponding path program 2 times
[2024-11-24 00:48:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:19,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984871046]
[2024-11-24 00:48:19,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:48:19,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:19,863 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:48:19,863 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:48:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:19,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:19,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984871046]
[2024-11-24 00:48:19,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984871046] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:19,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:19,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:19,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697975286]
[2024-11-24 00:48:19,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:19,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:19,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:19,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:19,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:19,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:19,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 151 transitions, 996 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:19,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:19,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:19,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:22,182 INFO L124 PetriNetUnfolderBase]: 3077/5183 cut-off events.
[2024-11-24 00:48:22,182 INFO L125 PetriNetUnfolderBase]: For 4052/4052 co-relation queries the response was YES.
[2024-11-24 00:48:22,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13790 conditions, 5183 events. 3077/5183 cut-off events. For 4052/4052 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 30342 event pairs, 1969 based on Foata normal form. 41/4255 useless extension candidates. Maximal degree in co-relation 13756. Up to 3524 conditions per place.
[2024-11-24 00:48:22,202 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 156 selfloop transitions, 4 changer transitions 16/177 dead transitions.
[2024-11-24 00:48:22,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 177 transitions, 1343 flow
[2024-11-24 00:48:22,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:22,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:22,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions.
[2024-11-24 00:48:22,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.425531914893617
[2024-11-24 00:48:22,204 INFO L175 Difference]: Start difference. First operand has 138 places, 151 transitions, 996 flow. Second operand 3 states and 120 transitions.
[2024-11-24 00:48:22,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 177 transitions, 1343 flow
[2024-11-24 00:48:22,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 177 transitions, 1313 flow, removed 4 selfloop flow, removed 3 redundant places.
[2024-11-24 00:48:22,219 INFO L231 Difference]: Finished difference. Result has 134 places, 145 transitions, 902 flow
[2024-11-24 00:48:22,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=134, PETRI_TRANSITIONS=145}
[2024-11-24 00:48:22,219 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 64 predicate places.
[2024-11-24 00:48:22,219 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 145 transitions, 902 flow
[2024-11-24 00:48:22,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:22,220 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:22,220 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:22,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-24 00:48:22,220 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:22,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash 790117115, now seen corresponding path program 1 times
[2024-11-24 00:48:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:22,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553572991]
[2024-11-24 00:48:22,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:22,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:22,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:22,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553572991]
[2024-11-24 00:48:22,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553572991] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:22,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:22,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:48:22,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289061048]
[2024-11-24 00:48:22,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:22,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:48:22,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:22,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:48:22,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:48:22,680 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:22,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 145 transitions, 902 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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)
[2024-11-24 00:48:22,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:22,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:22,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:24,470 INFO L124 PetriNetUnfolderBase]: 2855/4824 cut-off events.
[2024-11-24 00:48:24,470 INFO L125 PetriNetUnfolderBase]: For 2270/2270 co-relation queries the response was YES.
[2024-11-24 00:48:24,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12307 conditions, 4824 events. 2855/4824 cut-off events. For 2270/2270 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 27672 event pairs, 2431 based on Foata normal form. 1/4034 useless extension candidates. Maximal degree in co-relation 12275. Up to 4643 conditions per place.
[2024-11-24 00:48:24,493 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 147 selfloop transitions, 1 changer transitions 19/168 dead transitions.
[2024-11-24 00:48:24,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 168 transitions, 1287 flow
[2024-11-24 00:48:24,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:48:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 00:48:24,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions.
[2024-11-24 00:48:24,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29521276595744683
[2024-11-24 00:48:24,494 INFO L175 Difference]: Start difference. First operand has 134 places, 145 transitions, 902 flow. Second operand 4 states and 111 transitions.
[2024-11-24 00:48:24,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 168 transitions, 1287 flow
[2024-11-24 00:48:24,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 168 transitions, 1279 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-24 00:48:24,504 INFO L231 Difference]: Finished difference. Result has 134 places, 143 transitions, 879 flow
[2024-11-24 00:48:24,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=879, PETRI_PLACES=134, PETRI_TRANSITIONS=143}
[2024-11-24 00:48:24,505 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 64 predicate places.
[2024-11-24 00:48:24,505 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 143 transitions, 879 flow
[2024-11-24 00:48:24,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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)
[2024-11-24 00:48:24,506 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:24,506 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:24,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-11-24 00:48:24,506 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:24,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash -742648769, now seen corresponding path program 2 times
[2024-11-24 00:48:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853754892]
[2024-11-24 00:48:24,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:48:24,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:24,566 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:48:24,566 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:48:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:24,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:24,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853754892]
[2024-11-24 00:48:24,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853754892] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:24,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:24,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:48:24,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518559463]
[2024-11-24 00:48:24,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:24,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:48:24,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:24,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:48:24,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:48:24,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:24,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 143 transitions, 879 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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)
[2024-11-24 00:48:24,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:24,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:24,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:26,348 INFO L124 PetriNetUnfolderBase]: 2769/4666 cut-off events.
[2024-11-24 00:48:26,349 INFO L125 PetriNetUnfolderBase]: For 2096/2096 co-relation queries the response was YES.
[2024-11-24 00:48:26,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11811 conditions, 4666 events. 2769/4666 cut-off events. For 2096/2096 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 26434 event pairs, 2369 based on Foata normal form. 1/3891 useless extension candidates. Maximal degree in co-relation 11778. Up to 4537 conditions per place.
[2024-11-24 00:48:26,367 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 137 selfloop transitions, 0 changer transitions 22/160 dead transitions.
[2024-11-24 00:48:26,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 160 transitions, 1233 flow
[2024-11-24 00:48:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:48:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 00:48:26,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions.
[2024-11-24 00:48:26,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2765957446808511
[2024-11-24 00:48:26,368 INFO L175 Difference]: Start difference. First operand has 134 places, 143 transitions, 879 flow. Second operand 4 states and 104 transitions.
[2024-11-24 00:48:26,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 160 transitions, 1233 flow
[2024-11-24 00:48:26,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 160 transitions, 1230 flow, removed 1 selfloop flow, removed 2 redundant places.
[2024-11-24 00:48:26,376 INFO L231 Difference]: Finished difference. Result has 135 places, 138 transitions, 852 flow
[2024-11-24 00:48:26,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=852, PETRI_PLACES=135, PETRI_TRANSITIONS=138}
[2024-11-24 00:48:26,377 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 65 predicate places.
[2024-11-24 00:48:26,377 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 138 transitions, 852 flow
[2024-11-24 00:48:26,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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)
[2024-11-24 00:48:26,378 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:26,378 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:26,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-11-24 00:48:26,378 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:26,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:26,379 INFO L85 PathProgramCache]: Analyzing trace with hash 464797896, now seen corresponding path program 1 times
[2024-11-24 00:48:26,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:26,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170266732]
[2024-11-24 00:48:26,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:26,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:26,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:26,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170266732]
[2024-11-24 00:48:26,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170266732] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:26,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:26,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:48:26,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048553767]
[2024-11-24 00:48:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:26,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:48:26,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:26,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:48:26,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:48:26,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:26,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 138 transitions, 852 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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)
[2024-11-24 00:48:26,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:26,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:26,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:28,040 INFO L124 PetriNetUnfolderBase]: 2393/4045 cut-off events.
[2024-11-24 00:48:28,041 INFO L125 PetriNetUnfolderBase]: For 1889/1889 co-relation queries the response was YES.
[2024-11-24 00:48:28,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10275 conditions, 4045 events. 2393/4045 cut-off events. For 1889/1889 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 22125 event pairs, 1998 based on Foata normal form. 1/3455 useless extension candidates. Maximal degree in co-relation 10242. Up to 3877 conditions per place.
[2024-11-24 00:48:28,145 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 140 selfloop transitions, 1 changer transitions 18/160 dead transitions.
[2024-11-24 00:48:28,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 160 transitions, 1221 flow
[2024-11-24 00:48:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:48:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 00:48:28,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions.
[2024-11-24 00:48:28,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27925531914893614
[2024-11-24 00:48:28,146 INFO L175 Difference]: Start difference. First operand has 135 places, 138 transitions, 852 flow. Second operand 4 states and 105 transitions.
[2024-11-24 00:48:28,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 160 transitions, 1221 flow
[2024-11-24 00:48:28,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 160 transitions, 1213 flow, removed 2 selfloop flow, removed 2 redundant places.
[2024-11-24 00:48:28,153 INFO L231 Difference]: Finished difference. Result has 130 places, 136 transitions, 834 flow
[2024-11-24 00:48:28,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=834, PETRI_PLACES=130, PETRI_TRANSITIONS=136}
[2024-11-24 00:48:28,154 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 60 predicate places.
[2024-11-24 00:48:28,154 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 136 transitions, 834 flow
[2024-11-24 00:48:28,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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)
[2024-11-24 00:48:28,155 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:28,155 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:28,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-11-24 00:48:28,155 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:28,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:28,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2095381524, now seen corresponding path program 2 times
[2024-11-24 00:48:28,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:28,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937747274]
[2024-11-24 00:48:28,157 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:48:28,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:28,218 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:48:28,218 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:48:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:28,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:28,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937747274]
[2024-11-24 00:48:28,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937747274] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:28,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:28,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:48:28,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229856867]
[2024-11-24 00:48:28,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:28,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:48:28,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:28,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:48:28,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:48:28,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:28,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 136 transitions, 834 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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)
[2024-11-24 00:48:28,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:28,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:28,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:29,705 INFO L124 PetriNetUnfolderBase]: 2314/3899 cut-off events.
[2024-11-24 00:48:29,705 INFO L125 PetriNetUnfolderBase]: For 1608/1608 co-relation queries the response was YES.
[2024-11-24 00:48:29,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9826 conditions, 3899 events. 2314/3899 cut-off events. For 1608/1608 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 20986 event pairs, 1948 based on Foata normal form. 1/3319 useless extension candidates. Maximal degree in co-relation 9793. Up to 3791 conditions per place.
[2024-11-24 00:48:29,733 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 126 selfloop transitions, 0 changer transitions 24/151 dead transitions.
[2024-11-24 00:48:29,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 151 transitions, 1166 flow
[2024-11-24 00:48:29,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:48:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 00:48:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions.
[2024-11-24 00:48:29,739 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2579787234042553
[2024-11-24 00:48:29,739 INFO L175 Difference]: Start difference. First operand has 130 places, 136 transitions, 834 flow. Second operand 4 states and 97 transitions.
[2024-11-24 00:48:29,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 151 transitions, 1166 flow
[2024-11-24 00:48:29,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 151 transitions, 1161 flow, removed 2 selfloop flow, removed 2 redundant places.
[2024-11-24 00:48:29,765 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 800 flow
[2024-11-24 00:48:29,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=800, PETRI_PLACES=131, PETRI_TRANSITIONS=127}
[2024-11-24 00:48:29,766 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 61 predicate places.
[2024-11-24 00:48:29,767 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 800 flow
[2024-11-24 00:48:29,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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)
[2024-11-24 00:48:29,767 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:29,767 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:29,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-11-24 00:48:29,768 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:29,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash -576543863, now seen corresponding path program 1 times
[2024-11-24 00:48:29,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:29,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608520844]
[2024-11-24 00:48:29,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2024-11-24 00:48:30,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:30,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608520844]
[2024-11-24 00:48:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608520844] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:48:30,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:48:30,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:48:30,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131546790]
[2024-11-24 00:48:30,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:48:30,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:48:30,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:48:30,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:48:30,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:48:30,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94
[2024-11-24 00:48:30,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 800 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:30,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:48:30,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94
[2024-11-24 00:48:30,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:48:31,212 INFO L124 PetriNetUnfolderBase]: 1681/2865 cut-off events.
[2024-11-24 00:48:31,212 INFO L125 PetriNetUnfolderBase]: For 1277/1277 co-relation queries the response was YES.
[2024-11-24 00:48:31,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7296 conditions, 2865 events. 1681/2865 cut-off events. For 1277/1277 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 14174 event pairs, 1229 based on Foata normal form. 34/2498 useless extension candidates. Maximal degree in co-relation 7263. Up to 2418 conditions per place.
[2024-11-24 00:48:31,223 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 143 selfloop transitions, 3 changer transitions 2/149 dead transitions.
[2024-11-24 00:48:31,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 149 transitions, 1153 flow
[2024-11-24 00:48:31,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:48:31,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:48:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions.
[2024-11-24 00:48:31,224 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32978723404255317
[2024-11-24 00:48:31,224 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 800 flow. Second operand 3 states and 93 transitions.
[2024-11-24 00:48:31,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 149 transitions, 1153 flow
[2024-11-24 00:48:31,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 149 transitions, 1147 flow, removed 3 selfloop flow, removed 2 redundant places.
[2024-11-24 00:48:31,231 INFO L231 Difference]: Finished difference. Result has 120 places, 127 transitions, 809 flow
[2024-11-24 00:48:31,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=809, PETRI_PLACES=120, PETRI_TRANSITIONS=127}
[2024-11-24 00:48:31,231 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 50 predicate places.
[2024-11-24 00:48:31,231 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 127 transitions, 809 flow
[2024-11-24 00:48:31,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:48:31,231 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:48:31,232 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:48:31,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-11-24 00:48:31,232 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-24 00:48:31,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:48:31,233 INFO L85 PathProgramCache]: Analyzing trace with hash 333754834, now seen corresponding path program 1 times
[2024-11-24 00:48:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:48:31,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640476207]
[2024-11-24 00:48:31,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:31,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:48:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked.
[2024-11-24 00:48:41,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:48:41,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640476207]
[2024-11-24 00:48:41,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640476207] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:48:41,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077332684]
[2024-11-24 00:48:41,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:48:41,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:48:41,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:48:41,226 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:48:41,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de30c646-852d-41e0-bfd4-e4cf3224121e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-24 00:48:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:48:42,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 39 conjuncts are in the unsatisfiable core
[2024-11-24 00:48:42,260 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:48:50,231 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-24 00:48:50,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 223 treesize of output 1152
[2024-11-24 00:49:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked.
[2024-11-24 00:49:20,402 INFO L312 TraceCheckSpWp]: Computing backward predicates...