./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-broom/linux-list-lst-data.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/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_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-broom/linux-list-lst-data.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4ccf2c6cbb7828d48e51abf8a05e6b57c732fac1f8d9fff9fd3d0e0c2919368a
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:36:24,932 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:36:25,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf
[2024-11-23 22:36:25,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:36:25,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:36:25,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:36:25,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:36:25,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:36:25,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:36:25,050 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:36:25,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:36:25,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:36:25,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:36:25,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:36:25,051 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:36:25,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:36:25,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 22:36:25,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:36:25,052 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-23 22:36:25,052 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-23 22:36:25,052 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-23 22:36:25,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:36:25,053 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 22:36:25,053 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 22:36:25,053 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:36:25,053 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:36:25,053 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:36:25,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:36:25,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:36:25,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:36:25,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:36:25,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:36:25,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:36:25,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:36:25,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:36:25,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:36:25,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:36:25,055 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:36:25,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 22:36:25,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 22:36:25,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:36:25,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:36:25,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:36:25,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:36:25,056 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_e4b6d044-792c-4498-affc-f448ac70ddd3/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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ccf2c6cbb7828d48e51abf8a05e6b57c732fac1f8d9fff9fd3d0e0c2919368a
[2024-11-23 22:36:25,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:36:25,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:36:25,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:36:25,415 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:36:25,415 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:36:25,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/memsafety-broom/linux-list-lst-data.i
[2024-11-23 22:36:28,390 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data/7beff41cf/2a3870d054674aec949f9aa9eda6228d/FLAGbd1a8930b
[2024-11-23 22:36:28,784 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:36:28,785 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/sv-benchmarks/c/memsafety-broom/linux-list-lst-data.i
[2024-11-23 22:36:28,821 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data/7beff41cf/2a3870d054674aec949f9aa9eda6228d/FLAGbd1a8930b
[2024-11-23 22:36:28,845 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data/7beff41cf/2a3870d054674aec949f9aa9eda6228d
[2024-11-23 22:36:28,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:36:28,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:36:28,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:36:28,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:36:28,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:36:28,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:28" (1/1) ...
[2024-11-23 22:36:28,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd05338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:28, skipping insertion in model container
[2024-11-23 22:36:28,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:28" (1/1) ...
[2024-11-23 22:36:28,922 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:36:29,371 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:36:29,391 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
[2024-11-23 22:36:29,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56a4ebae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:29, skipping insertion in model container
[2024-11-23 22:36:29,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:36:29,392 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2024-11-23 22:36:29,395 INFO L158 Benchmark]: Toolchain (without parser) took 541.89ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 101.7MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:36:29,396 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:36:29,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.73ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 101.7MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:36:29,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.56ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 537.73ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 101.7MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 2490]: Unsupported Syntax
Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/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_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-broom/linux-list-lst-data.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4ccf2c6cbb7828d48e51abf8a05e6b57c732fac1f8d9fff9fd3d0e0c2919368a
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:36:32,285 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:36:32,429 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf
[2024-11-23 22:36:32,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:36:32,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:36:32,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:36:32,468 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:36:32,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:36:32,469 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:36:32,469 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:36:32,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:36:32,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:36:32,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:36:32,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:36:32,470 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:36:32,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:36:32,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 22:36:32,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:36:32,471 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-23 22:36:32,471 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-23 22:36:32,471 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-23 22:36:32,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:36:32,472 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 22:36:32,472 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 22:36:32,472 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 22:36:32,472 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 22:36:32,472 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:36:32,472 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:36:32,472 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:36:32,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:36:32,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:36:32,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:36:32,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:36:32,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:36:32,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:36:32,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:36:32,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:36:32,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:36:32,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:36:32,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:36:32,474 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 22:36:32,474 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 22:36:32,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:36:32,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:36:32,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:36:32,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:36:32,475 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_e4b6d044-792c-4498-affc-f448ac70ddd3/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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ccf2c6cbb7828d48e51abf8a05e6b57c732fac1f8d9fff9fd3d0e0c2919368a
[2024-11-23 22:36:32,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:36:32,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:36:32,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:36:32,854 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:36:32,855 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:36:32,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/memsafety-broom/linux-list-lst-data.i
[2024-11-23 22:36:35,984 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data/34430382f/5c33c6e0ed8f4ecca6339b6b27be8d95/FLAGeeff0ddcb
[2024-11-23 22:36:36,407 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:36:36,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/sv-benchmarks/c/memsafety-broom/linux-list-lst-data.i
[2024-11-23 22:36:36,441 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data/34430382f/5c33c6e0ed8f4ecca6339b6b27be8d95/FLAGeeff0ddcb
[2024-11-23 22:36:36,465 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/data/34430382f/5c33c6e0ed8f4ecca6339b6b27be8d95
[2024-11-23 22:36:36,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:36:36,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:36:36,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:36:36,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:36:36,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:36:36,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:36" (1/1) ...
[2024-11-23 22:36:36,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23097a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:36, skipping insertion in model container
[2024-11-23 22:36:36,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:36" (1/1) ...
[2024-11-23 22:36:36,552 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:36:36,997 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:36:37,010 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2024-11-23 22:36:37,040 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:36:37,099 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:36:37,104 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 22:36:37,150 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:36:37,187 INFO L204 MainTranslator]: Completed translation
[2024-11-23 22:36:37,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37 WrapperNode
[2024-11-23 22:36:37,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:36:37,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 22:36:37,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 22:36:37,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 22:36:37,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,246 INFO L138 Inliner]: procedures = 125, calls = 33, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 98
[2024-11-23 22:36:37,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 22:36:37,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 22:36:37,247 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 22:36:37,247 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 22:36:37,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,267 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,309 INFO L175 MemorySlicer]: Split 19 memory accesses to 1 slices as follows [19]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 11 writes are split as follows [11].
[2024-11-23 22:36:37,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,328 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 22:36:37,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 22:36:37,343 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 22:36:37,343 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 22:36:37,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (1/1) ...
[2024-11-23 22:36:37,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:36:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:37,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 22:36:37,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 22:36:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-23 22:36:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-23 22:36:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-23 22:36:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-23 22:36:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-23 22:36:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 22:36:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 22:36:37,614 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 22:36:37,616 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 22:36:38,381 INFO L? ?]: Removed 137 outVars from TransFormulas that were not future-live.
[2024-11-23 22:36:38,381 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 22:36:38,393 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 22:36:38,394 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-23 22:36:38,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:38 BoogieIcfgContainer
[2024-11-23 22:36:38,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 22:36:38,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 22:36:38,398 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 22:36:38,404 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 22:36:38,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:36:36" (1/3) ...
[2024-11-23 22:36:38,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d319cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:36:38, skipping insertion in model container
[2024-11-23 22:36:38,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:37" (2/3) ...
[2024-11-23 22:36:38,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d319cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:36:38, skipping insertion in model container
[2024-11-23 22:36:38,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:38" (3/3) ...
[2024-11-23 22:36:38,408 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-list-lst-data.i
[2024-11-23 22:36:38,427 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 22:36:38,429 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-list-lst-data.i that has 1 procedures, 100 locations, 1 initial locations, 4 loop locations, and 45 error locations.
[2024-11-23 22:36:38,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 22:36:38,490 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=None, 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;@48ccd3c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 22:36:38,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations.
[2024-11-23 22:36:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 54 states have (on average 1.9814814814814814) internal successors, (107), 99 states have internal predecessors, (107), 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)
[2024-11-23 22:36:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-23 22:36:38,500 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:38,501 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-23 22:36:38,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:38,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times
[2024-11-23 22:36:38,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:38,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144699866]
[2024-11-23 22:36:38,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:38,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:38,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:38,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:38,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 22:36:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:38,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:38,627 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:38,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-11-23 22:36:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:38,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:38,747 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144699866]
[2024-11-23 22:36:38,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144699866] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:38,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:38,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:36:38,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787444132]
[2024-11-23 22:36:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:38,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:36:38,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:38,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:36:38,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:36:38,790 INFO L87 Difference]: Start difference. First operand has 100 states, 54 states have (on average 1.9814814814814814) internal successors, (107), 99 states have internal predecessors, (107), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-23 22:36:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:39,180 INFO L93 Difference]: Finished difference Result 98 states and 100 transitions.
[2024-11-23 22:36:39,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:36:39,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3
[2024-11-23 22:36:39,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:39,193 INFO L225 Difference]: With dead ends: 98
[2024-11-23 22:36:39,193 INFO L226 Difference]: Without dead ends: 96
[2024-11-23 22:36:39,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:36:39,197 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:39,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 118 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 22:36:39,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2024-11-23 22:36:39,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96.
[2024-11-23 22:36:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 53 states have (on average 1.849056603773585) internal successors, (98), 95 states have internal predecessors, (98), 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)
[2024-11-23 22:36:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 98 transitions.
[2024-11-23 22:36:39,237 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 98 transitions. Word has length 3
[2024-11-23 22:36:39,237 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:39,237 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 98 transitions.
[2024-11-23 22:36:39,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-23 22:36:39,237 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 98 transitions.
[2024-11-23 22:36:39,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-23 22:36:39,238 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:39,238 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-23 22:36:39,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 22:36:39,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:39,440 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:39,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:39,441 INFO L85 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 1 times
[2024-11-23 22:36:39,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:39,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43567303]
[2024-11-23 22:36:39,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:39,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:39,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:39,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:39,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 22:36:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:39,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:39,502 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:39,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:36:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:39,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:39,534 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:39,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43567303]
[2024-11-23 22:36:39,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43567303] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:39,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:39,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:36:39,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067077420]
[2024-11-23 22:36:39,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:39,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:36:39,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:39,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:36:39,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:36:39,537 INFO L87 Difference]: Start difference. First operand 96 states and 98 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-23 22:36:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:39,943 INFO L93 Difference]: Finished difference Result 98 states and 101 transitions.
[2024-11-23 22:36:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:36:39,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3
[2024-11-23 22:36:39,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:39,946 INFO L225 Difference]: With dead ends: 98
[2024-11-23 22:36:39,946 INFO L226 Difference]: Without dead ends: 98
[2024-11-23 22:36:39,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:36:39,947 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 6 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:39,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 146 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 22:36:39,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2024-11-23 22:36:39,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94.
[2024-11-23 22:36:39,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 93 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:36:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 96 transitions.
[2024-11-23 22:36:39,955 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 96 transitions. Word has length 3
[2024-11-23 22:36:39,955 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:39,955 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 96 transitions.
[2024-11-23 22:36:39,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-23 22:36:39,955 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 96 transitions.
[2024-11-23 22:36:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-23 22:36:39,956 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:39,956 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:39,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-23 22:36:40,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:40,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:40,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:40,161 INFO L85 PathProgramCache]: Analyzing trace with hash 297344495, now seen corresponding path program 1 times
[2024-11-23 22:36:40,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:40,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885314528]
[2024-11-23 22:36:40,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:40,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:40,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:40,164 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:40,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 22:36:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:40,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:40,248 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:40,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-11-23 22:36:40,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:40,266 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:40,266 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:40,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885314528]
[2024-11-23 22:36:40,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885314528] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:40,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:40,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:36:40,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017327520]
[2024-11-23 22:36:40,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:40,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:36:40,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:40,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:36:40,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:36:40,267 INFO L87 Difference]: Start difference. First operand 94 states and 96 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2024-11-23 22:36:40,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:40,522 INFO L93 Difference]: Finished difference Result 93 states and 95 transitions.
[2024-11-23 22:36:40,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:36:40,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9
[2024-11-23 22:36:40,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:40,524 INFO L225 Difference]: With dead ends: 93
[2024-11-23 22:36:40,524 INFO L226 Difference]: Without dead ends: 93
[2024-11-23 22:36:40,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:36:40,525 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:40,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-23 22:36:40,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-11-23 22:36:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2024-11-23 22:36:40,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 53 states have (on average 1.7924528301886793) internal successors, (95), 92 states have internal predecessors, (95), 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)
[2024-11-23 22:36:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions.
[2024-11-23 22:36:40,532 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 9
[2024-11-23 22:36:40,532 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:40,532 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions.
[2024-11-23 22:36:40,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2024-11-23 22:36:40,532 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions.
[2024-11-23 22:36:40,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-23 22:36:40,533 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:40,533 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:40,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-23 22:36:40,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:40,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:40,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:40,734 INFO L85 PathProgramCache]: Analyzing trace with hash 297344496, now seen corresponding path program 1 times
[2024-11-23 22:36:40,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:40,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183555318]
[2024-11-23 22:36:40,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:40,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:40,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:40,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:40,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 22:36:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:40,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:40,833 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:40,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:36:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:40,862 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:40,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:40,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183555318]
[2024-11-23 22:36:40,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183555318] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:40,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:40,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:36:40,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362287670]
[2024-11-23 22:36:40,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:40,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:36:40,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:40,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:36:40,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:36:40,864 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2024-11-23 22:36:41,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:41,249 INFO L93 Difference]: Finished difference Result 92 states and 94 transitions.
[2024-11-23 22:36:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:36:41,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9
[2024-11-23 22:36:41,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:41,252 INFO L225 Difference]: With dead ends: 92
[2024-11-23 22:36:41,254 INFO L226 Difference]: Without dead ends: 92
[2024-11-23 22:36:41,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:36:41,256 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:41,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 146 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 22:36:41,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-11-23 22:36:41,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2024-11-23 22:36:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 53 states have (on average 1.7735849056603774) internal successors, (94), 91 states have internal predecessors, (94), 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)
[2024-11-23 22:36:41,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions.
[2024-11-23 22:36:41,264 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 9
[2024-11-23 22:36:41,264 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:41,264 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions.
[2024-11-23 22:36:41,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2024-11-23 22:36:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions.
[2024-11-23 22:36:41,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-23 22:36:41,265 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:41,265 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:41,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-23 22:36:41,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:41,469 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:41,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash 627832173, now seen corresponding path program 1 times
[2024-11-23 22:36:41,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:41,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140777051]
[2024-11-23 22:36:41,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:41,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:41,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:41,473 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:41,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 22:36:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:41,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:41,610 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:41,676 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:41,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:41,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140777051]
[2024-11-23 22:36:41,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140777051] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:41,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:41,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 22:36:41,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089035405]
[2024-11-23 22:36:41,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:41,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 22:36:41,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:41,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 22:36:41,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:41,678 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2024-11-23 22:36:42,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:42,129 INFO L93 Difference]: Finished difference Result 91 states and 93 transitions.
[2024-11-23 22:36:42,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:36:42,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10
[2024-11-23 22:36:42,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:42,131 INFO L225 Difference]: With dead ends: 91
[2024-11-23 22:36:42,131 INFO L226 Difference]: Without dead ends: 91
[2024-11-23 22:36:42,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:42,132 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 30 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:42,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 187 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 22:36:42,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-11-23 22:36:42,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2024-11-23 22:36:42,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 53 states have (on average 1.7547169811320755) internal successors, (93), 90 states have internal predecessors, (93), 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)
[2024-11-23 22:36:42,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 93 transitions.
[2024-11-23 22:36:42,143 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 93 transitions. Word has length 10
[2024-11-23 22:36:42,144 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:42,144 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 93 transitions.
[2024-11-23 22:36:42,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2024-11-23 22:36:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 93 transitions.
[2024-11-23 22:36:42,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-23 22:36:42,144 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:42,144 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:42,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-23 22:36:42,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:42,345 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:42,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash 627832174, now seen corresponding path program 1 times
[2024-11-23 22:36:42,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:42,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [539340854]
[2024-11-23 22:36:42,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:42,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:42,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:42,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:42,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-23 22:36:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:42,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:42,435 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:42,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:36:42,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:42,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:42,585 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:42,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539340854]
[2024-11-23 22:36:42,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539340854] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:42,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:42,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 22:36:42,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545344618]
[2024-11-23 22:36:42,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:42,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 22:36:42,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:42,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 22:36:42,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:42,586 INFO L87 Difference]: Start difference. First operand 91 states and 93 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2024-11-23 22:36:43,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:43,118 INFO L93 Difference]: Finished difference Result 105 states and 109 transitions.
[2024-11-23 22:36:43,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:36:43,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10
[2024-11-23 22:36:43,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:43,120 INFO L225 Difference]: With dead ends: 105
[2024-11-23 22:36:43,120 INFO L226 Difference]: Without dead ends: 105
[2024-11-23 22:36:43,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:43,121 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 10 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:43,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 236 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 22:36:43,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2024-11-23 22:36:43,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96.
[2024-11-23 22:36:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 58 states have (on average 1.706896551724138) internal successors, (99), 95 states have internal predecessors, (99), 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)
[2024-11-23 22:36:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 99 transitions.
[2024-11-23 22:36:43,127 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 99 transitions. Word has length 10
[2024-11-23 22:36:43,127 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:43,127 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 99 transitions.
[2024-11-23 22:36:43,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2024-11-23 22:36:43,127 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 99 transitions.
[2024-11-23 22:36:43,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-23 22:36:43,132 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:43,132 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:43,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-23 22:36:43,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:43,333 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:43,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:43,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2014749008, now seen corresponding path program 1 times
[2024-11-23 22:36:43,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:43,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813790896]
[2024-11-23 22:36:43,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:43,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:43,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:43,336 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:43,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-23 22:36:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:43,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:43,431 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:43,501 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-23 22:36:43,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-23 22:36:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:43,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:43,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:43,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813790896]
[2024-11-23 22:36:43,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813790896] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:43,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:43,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:36:43,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616274092]
[2024-11-23 22:36:43,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:43,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 22:36:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:43,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 22:36:43,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:36:43,532 INFO L87 Difference]: Start difference. First operand 96 states and 99 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2024-11-23 22:36:43,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:43,848 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions.
[2024-11-23 22:36:43,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 22:36:43,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11
[2024-11-23 22:36:43,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:43,850 INFO L225 Difference]: With dead ends: 95
[2024-11-23 22:36:43,850 INFO L226 Difference]: Without dead ends: 95
[2024-11-23 22:36:43,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:43,851 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 20 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:43,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 157 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 22:36:43,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2024-11-23 22:36:43,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95.
[2024-11-23 22:36:43,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 58 states have (on average 1.6896551724137931) internal successors, (98), 94 states have internal predecessors, (98), 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)
[2024-11-23 22:36:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 98 transitions.
[2024-11-23 22:36:43,856 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 98 transitions. Word has length 11
[2024-11-23 22:36:43,856 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:43,856 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 98 transitions.
[2024-11-23 22:36:43,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2024-11-23 22:36:43,856 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 98 transitions.
[2024-11-23 22:36:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-23 22:36:43,856 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:43,856 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:43,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-23 22:36:44,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:44,057 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:44,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:44,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2014749007, now seen corresponding path program 1 times
[2024-11-23 22:36:44,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:44,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023082722]
[2024-11-23 22:36:44,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:44,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:44,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:44,062 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:44,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-23 22:36:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:44,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:44,166 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:44,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:36:44,313 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 22:36:44,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-23 22:36:44,331 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-23 22:36:44,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-23 22:36:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:44,373 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:44,373 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:44,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023082722]
[2024-11-23 22:36:44,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023082722] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:44,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:44,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 22:36:44,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674890060]
[2024-11-23 22:36:44,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:44,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 22:36:44,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:44,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 22:36:44,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:44,375 INFO L87 Difference]: Start difference. First operand 95 states and 98 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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)
[2024-11-23 22:36:44,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:44,930 INFO L93 Difference]: Finished difference Result 94 states and 97 transitions.
[2024-11-23 22:36:44,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 22:36:44,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) Word has length 11
[2024-11-23 22:36:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:44,932 INFO L225 Difference]: With dead ends: 94
[2024-11-23 22:36:44,932 INFO L226 Difference]: Without dead ends: 94
[2024-11-23 22:36:44,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:36:44,932 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 20 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:44,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 184 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 22:36:44,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2024-11-23 22:36:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2024-11-23 22:36:44,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 93 states have internal predecessors, (97), 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)
[2024-11-23 22:36:44,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 97 transitions.
[2024-11-23 22:36:44,938 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 97 transitions. Word has length 11
[2024-11-23 22:36:44,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:44,938 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 97 transitions.
[2024-11-23 22:36:44,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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)
[2024-11-23 22:36:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 97 transitions.
[2024-11-23 22:36:44,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-23 22:36:44,939 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:44,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:44,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-23 22:36:45,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:45,143 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:45,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:45,144 INFO L85 PathProgramCache]: Analyzing trace with hash 856454065, now seen corresponding path program 1 times
[2024-11-23 22:36:45,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:45,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240515966]
[2024-11-23 22:36:45,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:45,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:45,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:45,146 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:45,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-23 22:36:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:45,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:45,241 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:45,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:45,270 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:45,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:45,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240515966]
[2024-11-23 22:36:45,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240515966] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:45,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:45,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:36:45,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572914739]
[2024-11-23 22:36:45,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:45,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 22:36:45,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:45,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 22:36:45,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:36:45,272 INFO L87 Difference]: Start difference. First operand 94 states and 97 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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)
[2024-11-23 22:36:45,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:45,553 INFO L93 Difference]: Finished difference Result 93 states and 96 transitions.
[2024-11-23 22:36:45,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 22:36:45,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 13
[2024-11-23 22:36:45,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:45,555 INFO L225 Difference]: With dead ends: 93
[2024-11-23 22:36:45,555 INFO L226 Difference]: Without dead ends: 93
[2024-11-23 22:36:45,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:36:45,555 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 3 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:45,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 177 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 22:36:45,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-11-23 22:36:45,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2024-11-23 22:36:45,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 92 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:36:45,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions.
[2024-11-23 22:36:45,560 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 13
[2024-11-23 22:36:45,561 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:45,561 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions.
[2024-11-23 22:36:45,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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)
[2024-11-23 22:36:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions.
[2024-11-23 22:36:45,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-23 22:36:45,561 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:45,562 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:45,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-23 22:36:45,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:45,766 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:45,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:45,767 INFO L85 PathProgramCache]: Analyzing trace with hash 856454066, now seen corresponding path program 1 times
[2024-11-23 22:36:45,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:45,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369528657]
[2024-11-23 22:36:45,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:45,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:45,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:45,769 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:45,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-23 22:36:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:45,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:45,879 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:45,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:45,974 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:45,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369528657]
[2024-11-23 22:36:45,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369528657] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:45,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:45,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 22:36:45,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706827675]
[2024-11-23 22:36:45,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:45,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 22:36:45,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:45,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 22:36:45,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:36:45,975 INFO L87 Difference]: Start difference. First operand 93 states and 96 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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)
[2024-11-23 22:36:46,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:46,334 INFO L93 Difference]: Finished difference Result 92 states and 95 transitions.
[2024-11-23 22:36:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 22:36:46,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) Word has length 13
[2024-11-23 22:36:46,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:46,336 INFO L225 Difference]: With dead ends: 92
[2024-11-23 22:36:46,336 INFO L226 Difference]: Without dead ends: 92
[2024-11-23 22:36:46,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-23 22:36:46,337 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 19 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:46,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 271 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 22:36:46,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-11-23 22:36:46,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2024-11-23 22:36:46,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 58 states have (on average 1.6379310344827587) internal successors, (95), 91 states have internal predecessors, (95), 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)
[2024-11-23 22:36:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions.
[2024-11-23 22:36:46,348 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 13
[2024-11-23 22:36:46,348 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:46,348 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions.
[2024-11-23 22:36:46,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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)
[2024-11-23 22:36:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions.
[2024-11-23 22:36:46,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-23 22:36:46,348 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:46,348 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:46,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-23 22:36:46,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:46,553 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:46,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash 780272251, now seen corresponding path program 1 times
[2024-11-23 22:36:46,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:46,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062570206]
[2024-11-23 22:36:46,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:46,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:46,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:46,555 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:46,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-23 22:36:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:46,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:46,674 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:46,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:46,722 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:46,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062570206]
[2024-11-23 22:36:46,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062570206] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:46,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:46,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 22:36:46,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247536975]
[2024-11-23 22:36:46,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:46,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 22:36:46,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:46,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 22:36:46,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:46,724 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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)
[2024-11-23 22:36:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:47,187 INFO L93 Difference]: Finished difference Result 90 states and 93 transitions.
[2024-11-23 22:36:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:36:47,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14
[2024-11-23 22:36:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:47,188 INFO L225 Difference]: With dead ends: 90
[2024-11-23 22:36:47,189 INFO L226 Difference]: Without dead ends: 90
[2024-11-23 22:36:47,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:47,189 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 4 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:47,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 206 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 22:36:47,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2024-11-23 22:36:47,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2024-11-23 22:36:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 58 states have (on average 1.603448275862069) internal successors, (93), 89 states have internal predecessors, (93), 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)
[2024-11-23 22:36:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions.
[2024-11-23 22:36:47,193 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 14
[2024-11-23 22:36:47,193 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:47,193 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions.
[2024-11-23 22:36:47,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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)
[2024-11-23 22:36:47,193 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions.
[2024-11-23 22:36:47,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-23 22:36:47,194 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:47,194 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:47,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-23 22:36:47,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:47,395 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:47,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:47,395 INFO L85 PathProgramCache]: Analyzing trace with hash 780272252, now seen corresponding path program 1 times
[2024-11-23 22:36:47,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:47,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155870979]
[2024-11-23 22:36:47,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:47,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:47,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:47,397 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:47,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-23 22:36:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:47,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:47,512 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:47,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:36:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:47,614 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:47,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:47,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155870979]
[2024-11-23 22:36:47,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155870979] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:47,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:47,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 22:36:47,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024867745]
[2024-11-23 22:36:47,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:47,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 22:36:47,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:47,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 22:36:47,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:47,616 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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)
[2024-11-23 22:36:48,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:48,034 INFO L93 Difference]: Finished difference Result 88 states and 91 transitions.
[2024-11-23 22:36:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:36:48,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14
[2024-11-23 22:36:48,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:48,035 INFO L225 Difference]: With dead ends: 88
[2024-11-23 22:36:48,035 INFO L226 Difference]: Without dead ends: 88
[2024-11-23 22:36:48,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:36:48,036 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 4 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:48,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 221 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 22:36:48,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2024-11-23 22:36:48,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88.
[2024-11-23 22:36:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 58 states have (on average 1.5689655172413792) internal successors, (91), 87 states have internal predecessors, (91), 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)
[2024-11-23 22:36:48,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 91 transitions.
[2024-11-23 22:36:48,040 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 91 transitions. Word has length 14
[2024-11-23 22:36:48,040 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:48,042 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 91 transitions.
[2024-11-23 22:36:48,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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)
[2024-11-23 22:36:48,042 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 91 transitions.
[2024-11-23 22:36:48,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-23 22:36:48,043 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:48,043 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:48,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-23 22:36:48,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:48,243 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:48,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:48,244 INFO L85 PathProgramCache]: Analyzing trace with hash -92696586, now seen corresponding path program 1 times
[2024-11-23 22:36:48,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:48,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757721149]
[2024-11-23 22:36:48,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:48,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:48,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:48,246 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:48,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-23 22:36:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:48,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:48,341 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:48,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:48,415 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:48,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757721149]
[2024-11-23 22:36:48,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757721149] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:48,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:48,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 22:36:48,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169187771]
[2024-11-23 22:36:48,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:48,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 22:36:48,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:48,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 22:36:48,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:36:48,417 INFO L87 Difference]: Start difference. First operand 88 states and 91 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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)
[2024-11-23 22:36:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:49,038 INFO L93 Difference]: Finished difference Result 120 states and 125 transitions.
[2024-11-23 22:36:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 22:36:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) Word has length 14
[2024-11-23 22:36:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:49,039 INFO L225 Difference]: With dead ends: 120
[2024-11-23 22:36:49,040 INFO L226 Difference]: Without dead ends: 120
[2024-11-23 22:36:49,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:36:49,040 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 59 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:49,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 176 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-23 22:36:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2024-11-23 22:36:49,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91.
[2024-11-23 22:36:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 62 states have (on average 1.564516129032258) internal successors, (97), 90 states have internal predecessors, (97), 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)
[2024-11-23 22:36:49,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions.
[2024-11-23 22:36:49,044 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 14
[2024-11-23 22:36:49,044 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:49,044 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions.
[2024-11-23 22:36:49,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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)
[2024-11-23 22:36:49,044 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions.
[2024-11-23 22:36:49,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-23 22:36:49,044 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:49,044 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:49,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-23 22:36:49,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:49,245 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:49,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:49,245 INFO L85 PathProgramCache]: Analyzing trace with hash -92696585, now seen corresponding path program 1 times
[2024-11-23 22:36:49,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:49,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513842933]
[2024-11-23 22:36:49,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:49,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:49,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:49,248 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:49,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-23 22:36:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:49,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:49,338 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:49,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:36:49,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:49,493 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:49,494 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:49,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513842933]
[2024-11-23 22:36:49,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513842933] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:49,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:49,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 22:36:49,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168728872]
[2024-11-23 22:36:49,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:49,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 22:36:49,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:49,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 22:36:49,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:36:49,495 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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)
[2024-11-23 22:36:50,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:50,289 INFO L93 Difference]: Finished difference Result 143 states and 152 transitions.
[2024-11-23 22:36:50,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 22:36:50,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) Word has length 14
[2024-11-23 22:36:50,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:50,290 INFO L225 Difference]: With dead ends: 143
[2024-11-23 22:36:50,291 INFO L226 Difference]: Without dead ends: 143
[2024-11-23 22:36:50,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:36:50,291 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 48 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:50,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 227 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-23 22:36:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2024-11-23 22:36:50,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 121.
[2024-11-23 22:36:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 92 states have (on average 1.641304347826087) internal successors, (151), 120 states have internal predecessors, (151), 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)
[2024-11-23 22:36:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 151 transitions.
[2024-11-23 22:36:50,295 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 151 transitions. Word has length 14
[2024-11-23 22:36:50,295 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:50,295 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 151 transitions.
[2024-11-23 22:36:50,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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)
[2024-11-23 22:36:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 151 transitions.
[2024-11-23 22:36:50,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-23 22:36:50,296 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:50,296 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:50,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-23 22:36:50,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:50,497 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:50,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:50,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1421303706, now seen corresponding path program 1 times
[2024-11-23 22:36:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:50,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198488939]
[2024-11-23 22:36:50,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:50,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:50,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:50,499 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:50,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-23 22:36:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:50,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:50,590 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:50,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:36:50,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11
[2024-11-23 22:36:50,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:36:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:50,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:50,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:50,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198488939]
[2024-11-23 22:36:50,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198488939] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:50,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:50,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 22:36:50,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989156355]
[2024-11-23 22:36:50,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:50,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 22:36:50,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:50,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 22:36:50,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-23 22:36:50,790 INFO L87 Difference]: Start difference. First operand 121 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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)
[2024-11-23 22:36:51,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:51,617 INFO L93 Difference]: Finished difference Result 129 states and 159 transitions.
[2024-11-23 22:36:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 22:36:51,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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) Word has length 15
[2024-11-23 22:36:51,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:51,618 INFO L225 Difference]: With dead ends: 129
[2024-11-23 22:36:51,618 INFO L226 Difference]: Without dead ends: 129
[2024-11-23 22:36:51,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-11-23 22:36:51,619 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 15 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:51,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 267 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-23 22:36:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-23 22:36:51,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125.
[2024-11-23 22:36:51,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 96 states have (on average 1.6354166666666667) internal successors, (157), 124 states have internal predecessors, (157), 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)
[2024-11-23 22:36:51,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 157 transitions.
[2024-11-23 22:36:51,623 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 157 transitions. Word has length 15
[2024-11-23 22:36:51,623 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:51,623 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 157 transitions.
[2024-11-23 22:36:51,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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)
[2024-11-23 22:36:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 157 transitions.
[2024-11-23 22:36:51,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-23 22:36:51,624 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:51,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:51,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2024-11-23 22:36:51,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:51,825 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:51,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:51,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1421303707, now seen corresponding path program 1 times
[2024-11-23 22:36:51,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:51,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306180598]
[2024-11-23 22:36:51,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:51,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:51,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:51,829 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:51,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-23 22:36:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:51,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:51,923 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:51,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:36:51,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:36:51,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-23 22:36:52,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-23 22:36:52,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:36:52,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:36:52,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:52,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:52,317 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:52,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306180598]
[2024-11-23 22:36:52,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306180598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:52,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:52,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-23 22:36:52,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354253721]
[2024-11-23 22:36:52,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:52,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-23 22:36:52,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:52,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-23 22:36:52,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-11-23 22:36:52,318 INFO L87 Difference]: Start difference. First operand 125 states and 157 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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)
[2024-11-23 22:36:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:53,021 INFO L93 Difference]: Finished difference Result 119 states and 146 transitions.
[2024-11-23 22:36:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-23 22:36:53,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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) Word has length 15
[2024-11-23 22:36:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:53,022 INFO L225 Difference]: With dead ends: 119
[2024-11-23 22:36:53,022 INFO L226 Difference]: Without dead ends: 119
[2024-11-23 22:36:53,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-11-23 22:36:53,023 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 25 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:53,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 399 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-23 22:36:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2024-11-23 22:36:53,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117.
[2024-11-23 22:36:53,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 88 states have (on average 1.6363636363636365) internal successors, (144), 116 states have internal predecessors, (144), 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)
[2024-11-23 22:36:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 144 transitions.
[2024-11-23 22:36:53,027 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 144 transitions. Word has length 15
[2024-11-23 22:36:53,027 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:53,027 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 144 transitions.
[2024-11-23 22:36:53,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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)
[2024-11-23 22:36:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 144 transitions.
[2024-11-23 22:36:53,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-23 22:36:53,028 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:53,028 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:53,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2024-11-23 22:36:53,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:53,229 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:53,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:53,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1777643106, now seen corresponding path program 1 times
[2024-11-23 22:36:53,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:53,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808360899]
[2024-11-23 22:36:53,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:53,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:53,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:53,231 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:53,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-23 22:36:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:53,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:53,363 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:53,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:36:53,509 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-23 22:36:53,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-23 22:36:53,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:36:53,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:36:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:53,661 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:53,661 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:53,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808360899]
[2024-11-23 22:36:53,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808360899] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:53,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:53,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-23 22:36:53,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020761613]
[2024-11-23 22:36:53,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:53,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 22:36:53,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:53,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 22:36:53,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-11-23 22:36:53,664 INFO L87 Difference]: Start difference. First operand 117 states and 144 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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)
[2024-11-23 22:36:54,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:54,420 INFO L93 Difference]: Finished difference Result 126 states and 154 transitions.
[2024-11-23 22:36:54,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-23 22:36:54,421 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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) Word has length 16
[2024-11-23 22:36:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:54,421 INFO L225 Difference]: With dead ends: 126
[2024-11-23 22:36:54,421 INFO L226 Difference]: Without dead ends: 126
[2024-11-23 22:36:54,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210
[2024-11-23 22:36:54,422 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 54 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:54,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 283 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-23 22:36:54,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2024-11-23 22:36:54,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126.
[2024-11-23 22:36:54,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 97 states have (on average 1.5876288659793814) internal successors, (154), 125 states have internal predecessors, (154), 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)
[2024-11-23 22:36:54,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 154 transitions.
[2024-11-23 22:36:54,426 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 154 transitions. Word has length 16
[2024-11-23 22:36:54,426 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:54,426 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 154 transitions.
[2024-11-23 22:36:54,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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)
[2024-11-23 22:36:54,427 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 154 transitions.
[2024-11-23 22:36:54,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-23 22:36:54,427 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:54,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:54,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-11-23 22:36:54,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:54,632 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:54,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:54,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1777643105, now seen corresponding path program 1 times
[2024-11-23 22:36:54,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:54,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054691210]
[2024-11-23 22:36:54,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:54,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:54,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:54,635 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:54,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-23 22:36:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:54,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:54,777 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:54,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:36:54,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:36:54,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:36:54,992 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-23 22:36:54,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-23 22:36:55,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-23 22:36:55,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:36:55,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:36:55,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:36:55,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 22:36:55,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:55,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:55,302 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:55,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054691210]
[2024-11-23 22:36:55,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054691210] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:55,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:55,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-23 22:36:55,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187771166]
[2024-11-23 22:36:55,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:55,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 22:36:55,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:55,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 22:36:55,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-11-23 22:36:55,304 INFO L87 Difference]: Start difference. First operand 126 states and 154 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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)
[2024-11-23 22:36:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:56,409 INFO L93 Difference]: Finished difference Result 126 states and 153 transitions.
[2024-11-23 22:36:56,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-23 22:36:56,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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) Word has length 16
[2024-11-23 22:36:56,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:56,411 INFO L225 Difference]: With dead ends: 126
[2024-11-23 22:36:56,411 INFO L226 Difference]: Without dead ends: 126
[2024-11-23 22:36:56,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210
[2024-11-23 22:36:56,412 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 33 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:56,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 322 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-23 22:36:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2024-11-23 22:36:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126.
[2024-11-23 22:36:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 97 states have (on average 1.577319587628866) internal successors, (153), 125 states have internal predecessors, (153), 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)
[2024-11-23 22:36:56,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 153 transitions.
[2024-11-23 22:36:56,417 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 153 transitions. Word has length 16
[2024-11-23 22:36:56,417 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:56,417 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 153 transitions.
[2024-11-23 22:36:56,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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)
[2024-11-23 22:36:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 153 transitions.
[2024-11-23 22:36:56,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-23 22:36:56,418 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:56,418 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:56,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0
[2024-11-23 22:36:56,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:56,623 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:56,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:56,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1112895927, now seen corresponding path program 1 times
[2024-11-23 22:36:56,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:56,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1782755376]
[2024-11-23 22:36:56,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:56,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:56,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:56,625 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:56,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-23 22:36:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:56,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:56,732 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:56,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-23 22:36:56,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:36:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:57,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:57,038 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:57,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782755376]
[2024-11-23 22:36:57,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782755376] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:57,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:57,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-23 22:36:57,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598494182]
[2024-11-23 22:36:57,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:57,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-23 22:36:57,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:57,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-23 22:36:57,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2024-11-23 22:36:57,040 INFO L87 Difference]: Start difference. First operand 126 states and 153 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 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)
[2024-11-23 22:36:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:36:58,469 INFO L93 Difference]: Finished difference Result 188 states and 235 transitions.
[2024-11-23 22:36:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-23 22:36:58,469 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 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) Word has length 16
[2024-11-23 22:36:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:36:58,471 INFO L225 Difference]: With dead ends: 188
[2024-11-23 22:36:58,471 INFO L226 Difference]: Without dead ends: 188
[2024-11-23 22:36:58,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210
[2024-11-23 22:36:58,472 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 89 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-23 22:36:58,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 268 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-23 22:36:58,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states.
[2024-11-23 22:36:58,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 157.
[2024-11-23 22:36:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 128 states have (on average 1.671875) internal successors, (214), 156 states have internal predecessors, (214), 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)
[2024-11-23 22:36:58,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 214 transitions.
[2024-11-23 22:36:58,478 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 214 transitions. Word has length 16
[2024-11-23 22:36:58,478 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:36:58,478 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 214 transitions.
[2024-11-23 22:36:58,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 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)
[2024-11-23 22:36:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 214 transitions.
[2024-11-23 22:36:58,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-23 22:36:58,478 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:36:58,479 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:36:58,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2024-11-23 22:36:58,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:58,679 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:36:58,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:36:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1112895928, now seen corresponding path program 1 times
[2024-11-23 22:36:58,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:36:58,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1358363296]
[2024-11-23 22:36:58,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:36:58,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:36:58,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:36:58,682 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:36:58,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-23 22:36:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:36:58,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-23 22:36:58,792 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:36:58,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:36:58,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-23 22:36:58,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-23 22:36:59,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:36:59,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 22:36:59,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:36:59,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:36:59,280 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:36:59,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358363296]
[2024-11-23 22:36:59,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358363296] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:36:59,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:36:59,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-23 22:36:59,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36888730]
[2024-11-23 22:36:59,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:36:59,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-23 22:36:59,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:36:59,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-23 22:36:59,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110
[2024-11-23 22:36:59,282 INFO L87 Difference]: Start difference. First operand 157 states and 214 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 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)
[2024-11-23 22:37:00,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:00,601 INFO L93 Difference]: Finished difference Result 150 states and 174 transitions.
[2024-11-23 22:37:00,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-23 22:37:00,601 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 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) Word has length 16
[2024-11-23 22:37:00,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:00,602 INFO L225 Difference]: With dead ends: 150
[2024-11-23 22:37:00,602 INFO L226 Difference]: Without dead ends: 150
[2024-11-23 22:37:00,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156
[2024-11-23 22:37:00,603 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 42 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:00,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 357 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-23 22:37:00,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2024-11-23 22:37:00,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 138.
[2024-11-23 22:37:00,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 109 states have (on average 1.5963302752293578) internal successors, (174), 137 states have internal predecessors, (174), 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)
[2024-11-23 22:37:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions.
[2024-11-23 22:37:00,607 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 16
[2024-11-23 22:37:00,608 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:00,608 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions.
[2024-11-23 22:37:00,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 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)
[2024-11-23 22:37:00,608 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions.
[2024-11-23 22:37:00,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-11-23 22:37:00,608 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:00,609 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:37:00,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2024-11-23 22:37:00,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:00,809 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:00,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:00,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1382348158, now seen corresponding path program 1 times
[2024-11-23 22:37:00,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:00,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175911320]
[2024-11-23 22:37:00,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:00,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:00,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:00,811 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:00,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-23 22:37:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:00,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:00,915 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:00,941 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:37:00,941 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:37:00,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175911320]
[2024-11-23 22:37:00,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175911320] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:37:00,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:37:00,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:37:00,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107989265]
[2024-11-23 22:37:00,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:37:00,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 22:37:00,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:37:00,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 22:37:00,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:37:00,943 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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)
[2024-11-23 22:37:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:01,354 INFO L93 Difference]: Finished difference Result 144 states and 163 transitions.
[2024-11-23 22:37:01,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:37:01,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) Word has length 20
[2024-11-23 22:37:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:01,355 INFO L225 Difference]: With dead ends: 144
[2024-11-23 22:37:01,356 INFO L226 Difference]: Without dead ends: 144
[2024-11-23 22:37:01,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:37:01,356 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 42 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:01,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 130 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 22:37:01,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2024-11-23 22:37:01,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 135.
[2024-11-23 22:37:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 109 states have (on average 1.4954128440366972) internal successors, (163), 134 states have internal predecessors, (163), 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)
[2024-11-23 22:37:01,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 163 transitions.
[2024-11-23 22:37:01,361 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 163 transitions. Word has length 20
[2024-11-23 22:37:01,361 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:01,361 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 163 transitions.
[2024-11-23 22:37:01,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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)
[2024-11-23 22:37:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 163 transitions.
[2024-11-23 22:37:01,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-11-23 22:37:01,362 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:01,362 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:37:01,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2024-11-23 22:37:01,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:01,563 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:01,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:01,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1382348159, now seen corresponding path program 1 times
[2024-11-23 22:37:01,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:01,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142767480]
[2024-11-23 22:37:01,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:01,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:01,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:01,568 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:01,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-11-23 22:37:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:01,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:01,799 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:01,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:37:01,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-23 22:37:01,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-23 22:37:02,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:37:02,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 22:37:02,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:37:02,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:02,404 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:37:02,404 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:37:02,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142767480]
[2024-11-23 22:37:02,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142767480] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:37:02,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:37:02,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2024-11-23 22:37:02,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056141543]
[2024-11-23 22:37:02,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:37:02,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-23 22:37:02,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:37:02,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-23 22:37:02,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2024-11-23 22:37:02,407 INFO L87 Difference]: Start difference. First operand 135 states and 163 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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)
[2024-11-23 22:37:03,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:03,434 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions.
[2024-11-23 22:37:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-23 22:37:03,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) Word has length 20
[2024-11-23 22:37:03,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:03,437 INFO L225 Difference]: With dead ends: 124
[2024-11-23 22:37:03,437 INFO L226 Difference]: Without dead ends: 124
[2024-11-23 22:37:03,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182
[2024-11-23 22:37:03,439 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 8 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:03,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 342 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-23 22:37:03,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2024-11-23 22:37:03,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124.
[2024-11-23 22:37:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 98 states have (on average 1.4591836734693877) internal successors, (143), 123 states have internal predecessors, (143), 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)
[2024-11-23 22:37:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions.
[2024-11-23 22:37:03,442 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 20
[2024-11-23 22:37:03,442 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:03,442 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions.
[2024-11-23 22:37:03,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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)
[2024-11-23 22:37:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions.
[2024-11-23 22:37:03,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-11-23 22:37:03,443 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:03,443 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:37:03,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-11-23 22:37:03,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:03,647 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:03,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:03,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1382351295, now seen corresponding path program 1 times
[2024-11-23 22:37:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:03,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1716096266]
[2024-11-23 22:37:03,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:03,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:03,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:03,649 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:03,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-11-23 22:37:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:03,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:03,782 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:03,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:37:03,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:37:03,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716096266]
[2024-11-23 22:37:03,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716096266] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:37:03,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:37:03,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 22:37:03,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291440205]
[2024-11-23 22:37:03,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:37:03,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 22:37:03,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:37:03,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 22:37:03,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:37:03,888 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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)
[2024-11-23 22:37:04,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:04,070 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions.
[2024-11-23 22:37:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 22:37:04,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) Word has length 20
[2024-11-23 22:37:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:04,071 INFO L225 Difference]: With dead ends: 123
[2024-11-23 22:37:04,071 INFO L226 Difference]: Without dead ends: 123
[2024-11-23 22:37:04,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:37:04,071 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 56 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:04,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 251 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-23 22:37:04,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states.
[2024-11-23 22:37:04,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123.
[2024-11-23 22:37:04,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 122 states have internal predecessors, (141), 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)
[2024-11-23 22:37:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions.
[2024-11-23 22:37:04,074 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 20
[2024-11-23 22:37:04,074 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:04,075 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions.
[2024-11-23 22:37:04,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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)
[2024-11-23 22:37:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions.
[2024-11-23 22:37:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-23 22:37:04,075 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:04,075 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:37:04,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2024-11-23 22:37:04,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:04,276 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:04,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:04,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1474591047, now seen corresponding path program 1 times
[2024-11-23 22:37:04,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:04,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871358079]
[2024-11-23 22:37:04,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:04,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:04,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:04,278 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:04,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-23 22:37:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:04,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:04,413 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:04,589 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:37:04,589 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:37:04,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871358079]
[2024-11-23 22:37:04,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871358079] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:37:04,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:37:04,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 22:37:04,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456903866]
[2024-11-23 22:37:04,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:37:04,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 22:37:04,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:37:04,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 22:37:04,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-23 22:37:04,590 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 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)
[2024-11-23 22:37:05,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:05,053 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions.
[2024-11-23 22:37:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 22:37:05,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 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) Word has length 23
[2024-11-23 22:37:05,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:05,054 INFO L225 Difference]: With dead ends: 122
[2024-11-23 22:37:05,054 INFO L226 Difference]: Without dead ends: 122
[2024-11-23 22:37:05,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-23 22:37:05,055 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 20 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:05,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 194 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 22:37:05,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states.
[2024-11-23 22:37:05,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122.
[2024-11-23 22:37:05,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 121 states have internal predecessors, (140), 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)
[2024-11-23 22:37:05,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 140 transitions.
[2024-11-23 22:37:05,059 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 140 transitions. Word has length 23
[2024-11-23 22:37:05,059 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:05,059 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 140 transitions.
[2024-11-23 22:37:05,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 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)
[2024-11-23 22:37:05,059 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 140 transitions.
[2024-11-23 22:37:05,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-23 22:37:05,060 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:05,060 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:37:05,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0
[2024-11-23 22:37:05,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:05,260 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:05,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:05,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1481168146, now seen corresponding path program 1 times
[2024-11-23 22:37:05,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:05,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [289565866]
[2024-11-23 22:37:05,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:05,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:05,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:05,263 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:05,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-11-23 22:37:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:05,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:05,377 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:05,563 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_destroy_~head#1.base_13| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_destroy_~head#1.base_13|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_destroy_~head#1.base_13| (_ bv0 1))))) is different from true
[2024-11-23 22:37:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:05,574 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:37:05,574 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:37:05,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289565866]
[2024-11-23 22:37:05,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289565866] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:37:05,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:37:05,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 22:37:05,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425009891]
[2024-11-23 22:37:05,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:37:05,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 22:37:05,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:37:05,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 22:37:05,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42
[2024-11-23 22:37:05,575 INFO L87 Difference]: Start difference. First operand 122 states and 140 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 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)
[2024-11-23 22:37:06,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:06,190 INFO L93 Difference]: Finished difference Result 126 states and 143 transitions.
[2024-11-23 22:37:06,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 22:37:06,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 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) Word has length 23
[2024-11-23 22:37:06,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:06,191 INFO L225 Difference]: With dead ends: 126
[2024-11-23 22:37:06,191 INFO L226 Difference]: Without dead ends: 110
[2024-11-23 22:37:06,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42
[2024-11-23 22:37:06,192 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 1 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 100 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:06,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 222 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 100 Unchecked, 0.6s Time]
[2024-11-23 22:37:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2024-11-23 22:37:06,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110.
[2024-11-23 22:37:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 109 states have internal predecessors, (127), 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)
[2024-11-23 22:37:06,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions.
[2024-11-23 22:37:06,200 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 23
[2024-11-23 22:37:06,200 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:06,200 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions.
[2024-11-23 22:37:06,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 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)
[2024-11-23 22:37:06,201 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions.
[2024-11-23 22:37:06,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-23 22:37:06,201 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:06,201 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 22:37:06,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2024-11-23 22:37:06,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:06,402 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:06,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1927707710, now seen corresponding path program 1 times
[2024-11-23 22:37:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850096995]
[2024-11-23 22:37:06,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:06,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:06,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:06,404 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:06,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-11-23 22:37:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:06,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:06,565 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:06,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:37:06,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:37:06,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850096995]
[2024-11-23 22:37:06,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850096995] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:37:06,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:37:06,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-23 22:37:06,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219147662]
[2024-11-23 22:37:06,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:37:06,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 22:37:06,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:37:06,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 22:37:06,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-23 22:37:06,782 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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)
[2024-11-23 22:37:07,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:07,496 INFO L93 Difference]: Finished difference Result 108 states and 123 transitions.
[2024-11-23 22:37:07,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 22:37:07,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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) Word has length 27
[2024-11-23 22:37:07,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:07,497 INFO L225 Difference]: With dead ends: 108
[2024-11-23 22:37:07,497 INFO L226 Difference]: Without dead ends: 108
[2024-11-23 22:37:07,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-11-23 22:37:07,497 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 53 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:07,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 192 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-23 22:37:07,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2024-11-23 22:37:07,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108.
[2024-11-23 22:37:07,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 86 states have (on average 1.430232558139535) internal successors, (123), 107 states have internal predecessors, (123), 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)
[2024-11-23 22:37:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions.
[2024-11-23 22:37:07,500 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 27
[2024-11-23 22:37:07,500 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:07,501 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions.
[2024-11-23 22:37:07,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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)
[2024-11-23 22:37:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions.
[2024-11-23 22:37:07,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-23 22:37:07,501 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:07,501 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 22:37:07,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0
[2024-11-23 22:37:07,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:07,702 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:07,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash 370533679, now seen corresponding path program 1 times
[2024-11-23 22:37:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:07,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1915710522]
[2024-11-23 22:37:07,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:07,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:07,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:07,704 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:07,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-11-23 22:37:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:07,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 42 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:07,877 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:07,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-11-23 22:37:07,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:37:07,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:37:08,015 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-23 22:37:08,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-23 22:37:08,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:37:08,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:37:08,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:37:08,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:37:08,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 22:37:08,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15
[2024-11-23 22:37:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:08,658 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:37:08,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32
[2024-11-23 22:37:09,446 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2024-11-23 22:37:09,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15
[2024-11-23 22:37:09,467 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_710 (Array (_ BitVec 64) (_ BitVec 64)))) (= |c_ULTIMATE.start_create_~head~0#1.offset| (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_710) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0))) (forall ((v_ArrVal_711 (Array (_ BitVec 64) (_ BitVec 64)))) (= |c_ULTIMATE.start_create_~head~0#1.base| (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_711) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0))))) is different from false
[2024-11-23 22:37:13,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:37:13,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23
[2024-11-23 22:37:13,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24
[2024-11-23 22:37:13,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 22:37:13,828 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size
[2024-11-23 22:37:13,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1
[2024-11-23 22:37:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:17,916 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:37:17,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915710522]
[2024-11-23 22:37:17,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915710522] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:37:17,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:37:17,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23
[2024-11-23 22:37:17,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521727141]
[2024-11-23 22:37:17,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:37:17,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-23 22:37:17,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:37:17,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-23 22:37:17,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=439, Unknown=14, NotChecked=42, Total=552
[2024-11-23 22:37:17,918 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 24 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)
[2024-11-23 22:37:21,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:21,038 INFO L93 Difference]: Finished difference Result 129 states and 148 transitions.
[2024-11-23 22:37:21,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-23 22:37:21,038 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 24 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) Word has length 28
[2024-11-23 22:37:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:21,039 INFO L225 Difference]: With dead ends: 129
[2024-11-23 22:37:21,039 INFO L226 Difference]: Without dead ends: 129
[2024-11-23 22:37:21,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=144, Invalid=902, Unknown=14, NotChecked=62, Total=1122
[2024-11-23 22:37:21,040 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 68 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:21,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 659 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 712 Invalid, 0 Unknown, 68 Unchecked, 2.3s Time]
[2024-11-23 22:37:21,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-23 22:37:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 120.
[2024-11-23 22:37:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 119 states have internal predecessors, (138), 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)
[2024-11-23 22:37:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions.
[2024-11-23 22:37:21,043 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 28
[2024-11-23 22:37:21,043 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:21,043 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 138 transitions.
[2024-11-23 22:37:21,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 24 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)
[2024-11-23 22:37:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions.
[2024-11-23 22:37:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-23 22:37:21,044 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:21,044 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 22:37:21,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0
[2024-11-23 22:37:21,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:21,245 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:21,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash 370533680, now seen corresponding path program 1 times
[2024-11-23 22:37:21,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:21,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852603376]
[2024-11-23 22:37:21,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:21,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:21,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:21,249 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:21,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2024-11-23 22:37:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:21,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:21,446 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:21,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:37:21,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:37:21,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:37:21,667 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-23 22:37:21,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-23 22:37:21,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:37:21,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:37:21,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:37:21,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:37:22,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:37:22,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 22:37:22,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13
[2024-11-23 22:37:22,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 22:37:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:22,548 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:37:23,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56
[2024-11-23 22:37:23,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82
[2024-11-23 22:37:23,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28
[2024-11-23 22:37:25,095 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_19| (_ BitVec 64))) (or (forall ((v_ArrVal_774 (Array (_ BitVec 64) (_ BitVec 64)))) (= (select (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_19| v_ArrVal_774) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0) |c_ULTIMATE.start_create_~head~0#1.offset|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_19|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_19| (_ BitVec 64))) (or (forall ((v_ArrVal_773 (Array (_ BitVec 64) (_ BitVec 64)))) (= (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_19| v_ArrVal_773) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0) |c_ULTIMATE.start_create_~head~0#1.base|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_19|))))))) is different from false
[2024-11-23 22:37:25,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:37:25,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23
[2024-11-23 22:37:25,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24
[2024-11-23 22:37:25,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 22:37:25,209 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size
[2024-11-23 22:37:25,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1
[2024-11-23 22:37:25,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked.
[2024-11-23 22:37:25,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:37:25,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852603376]
[2024-11-23 22:37:25,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852603376] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:37:25,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:37:25,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25
[2024-11-23 22:37:25,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376194449]
[2024-11-23 22:37:25,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:37:25,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-11-23 22:37:25,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:37:25,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-11-23 22:37:25,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=530, Unknown=5, NotChecked=46, Total=650
[2024-11-23 22:37:25,325 INFO L87 Difference]: Start difference. First operand 120 states and 138 transitions. Second operand has 26 states, 25 states have (on average 2.2) internal successors, (55), 26 states have internal predecessors, (55), 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)
[2024-11-23 22:37:31,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:37:31,664 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions.
[2024-11-23 22:37:31,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-23 22:37:31,665 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.2) internal successors, (55), 26 states have internal predecessors, (55), 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) Word has length 28
[2024-11-23 22:37:31,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:37:31,666 INFO L225 Difference]: With dead ends: 129
[2024-11-23 22:37:31,666 INFO L226 Difference]: Without dead ends: 129
[2024-11-23 22:37:31,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=147, Invalid=1042, Unknown=5, NotChecked=66, Total=1260
[2024-11-23 22:37:31,667 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 69 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:37:31,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 648 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 628 Invalid, 0 Unknown, 75 Unchecked, 4.8s Time]
[2024-11-23 22:37:31,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-23 22:37:31,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 120.
[2024-11-23 22:37:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 98 states have (on average 1.3877551020408163) internal successors, (136), 119 states have internal predecessors, (136), 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)
[2024-11-23 22:37:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 136 transitions.
[2024-11-23 22:37:31,674 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 136 transitions. Word has length 28
[2024-11-23 22:37:31,674 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:37:31,674 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 136 transitions.
[2024-11-23 22:37:31,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.2) internal successors, (55), 26 states have internal predecessors, (55), 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)
[2024-11-23 22:37:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 136 transitions.
[2024-11-23 22:37:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-23 22:37:31,674 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:37:31,674 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:37:31,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0
[2024-11-23 22:37:31,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:31,875 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:37:31,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:37:31,875 INFO L85 PathProgramCache]: Analyzing trace with hash 8224425, now seen corresponding path program 1 times
[2024-11-23 22:37:31,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:37:31,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510457439]
[2024-11-23 22:37:31,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:37:31,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:37:31,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:37:31,877 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:37:31,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process
[2024-11-23 22:37:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:37:32,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 54 conjuncts are in the unsatisfiable core
[2024-11-23 22:37:32,084 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:37:32,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:37:32,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:37:32,240 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-23 22:37:32,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-23 22:37:32,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:37:32,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:37:32,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:37:32,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14
[2024-11-23 22:37:32,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:37:32,900 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-11-23 22:37:32,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35
[2024-11-23 22:37:32,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19
[2024-11-23 22:37:33,182 INFO L349 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size
[2024-11-23 22:37:33,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 44
[2024-11-23 22:37:33,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27
[2024-11-23 22:37:33,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19
[2024-11-23 22:37:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:37:33,836 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:37:51,767 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_876 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_880 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_24| (_ BitVec 64)) (v_ArrVal_873 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_877 (_ BitVec 64)) (|v_ULTIMATE.start_create_~ptr~0#1.base_22| (_ BitVec 64)) (v_ArrVal_872 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (store |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_24| (_ bv1 1)))) (or (not (= (_ bv0 1) (select .cse0 |v_ULTIMATE.start_create_~ptr~0#1.base_22|))) (= (_ bv0 1) (bvadd (_ bv1 1) (select (store .cse0 |v_ULTIMATE.start_create_~ptr~0#1.base_22| (_ bv1 1)) (let ((.cse3 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (select (select (store (let ((.cse4 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_873) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse1 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse4 .cse3 |v_ULTIMATE.start_create_~ptr~0#1.base_24|)) |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_876)) (.cse2 (select .cse4 .cse3))) (store .cse1 .cse2 (store (select .cse1 .cse2) (select (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_872) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3) v_ArrVal_877)))) |v_ULTIMATE.start_create_~ptr~0#1.base_22| v_ArrVal_880) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_24|)))))) is different from false
[2024-11-23 22:37:52,503 INFO L349 Elim1Store]: treesize reduction 15, result has 67.4 percent of original size
[2024-11-23 22:37:52,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 5662 treesize of output 4449
[2024-11-23 22:37:52,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:37:52,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 345 treesize of output 316
[2024-11-23 22:37:52,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 460 treesize of output 430
[2024-11-23 22:37:52,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 249
[2024-11-23 22:37:52,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 504 treesize of output 488
[2024-11-23 22:37:52,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 488 treesize of output 456
[2024-11-23 22:37:52,898 INFO L349 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size
[2024-11-23 22:37:52,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 673 treesize of output 663
[2024-11-23 22:37:52,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 364 treesize of output 328
[2024-11-23 22:38:26,685 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked.
[2024-11-23 22:38:26,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:38:26,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510457439]
[2024-11-23 22:38:26,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510457439] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:38:26,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:38:26,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34
[2024-11-23 22:38:26,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12554629]
[2024-11-23 22:38:26,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:38:26,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2024-11-23 22:38:26,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:38:26,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2024-11-23 22:38:26,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=922, Unknown=42, NotChecked=64, Total=1190
[2024-11-23 22:38:26,687 INFO L87 Difference]: Start difference. First operand 120 states and 136 transitions. Second operand has 35 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:38:37,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:38:43,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:38:47,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:38:51,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:38:55,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:39:00,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:39:04,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:39:08,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:39:11,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:39:41,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:39:46,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:39:50,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-23 22:40:19,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:40:29,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:41:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:41:24,418 INFO L93 Difference]: Finished difference Result 144 states and 162 transitions.
[2024-11-23 22:41:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-23 22:41:24,418 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29
[2024-11-23 22:41:24,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:41:24,419 INFO L225 Difference]: With dead ends: 144
[2024-11-23 22:41:24,419 INFO L226 Difference]: Without dead ends: 144
[2024-11-23 22:41:24,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 157.1s TimeCoverageRelationStatistics Valid=387, Invalid=1991, Unknown=76, NotChecked=96, Total=2550
[2024-11-23 22:41:24,420 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 63 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 11 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 71.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:41:24,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 859 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 881 Invalid, 29 Unknown, 84 Unchecked, 71.4s Time]
[2024-11-23 22:41:24,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2024-11-23 22:41:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142.
[2024-11-23 22:41:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 120 states have (on average 1.3416666666666666) internal successors, (161), 141 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:41:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 161 transitions.
[2024-11-23 22:41:24,424 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 161 transitions. Word has length 29
[2024-11-23 22:41:24,424 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:41:24,424 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 161 transitions.
[2024-11-23 22:41:24,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:41:24,424 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 161 transitions.
[2024-11-23 22:41:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-23 22:41:24,425 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:41:24,425 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:41:24,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0
[2024-11-23 22:41:24,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:41:24,625 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:41:24,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:41:24,626 INFO L85 PathProgramCache]: Analyzing trace with hash 8224426, now seen corresponding path program 1 times
[2024-11-23 22:41:24,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:41:24,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627923171]
[2024-11-23 22:41:24,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:41:24,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:41:24,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:41:24,629 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:41:24,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process
[2024-11-23 22:41:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:41:24,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 67 conjuncts are in the unsatisfiable core
[2024-11-23 22:41:24,887 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:41:24,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:41:25,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:41:25,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:41:25,399 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-23 22:41:25,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-23 22:41:25,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:41:25,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:41:27,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14
[2024-11-23 22:41:27,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 22:41:27,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:41:27,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:41:27,442 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-11-23 22:41:27,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 54
[2024-11-23 22:41:27,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11
[2024-11-23 22:41:27,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-23 22:41:27,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 24
[2024-11-23 22:41:28,425 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size
[2024-11-23 22:41:28,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26
[2024-11-23 22:41:28,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13
[2024-11-23 22:41:28,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25
[2024-11-23 22:41:28,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16
[2024-11-23 22:41:29,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:41:29,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:41:29,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13
[2024-11-23 22:41:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:41:29,468 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:41:30,905 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_989 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (_ bv8 64) (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_989) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0)))) (forall ((v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0))) (bvule .cse1 (bvadd (_ bv8 64) .cse1)))))) is different from false
[2024-11-23 22:41:41,684 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (bvadd (_ bv8 64) |c_ULTIMATE.start___list_add_~next#1.offset|))) (let ((.cse2 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start___list_add_~next#1.base| (store (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start___list_add_~next#1.base|) .cse6 |c_ULTIMATE.start___list_add_~new#1.offset|))) (.cse3 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_26| (_ BitVec 64)) (v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64)))) (or (forall ((v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (let ((.cse1 (store .cse2 |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_983))) (store .cse1 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse1 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| |c_ULTIMATE.start___list_add_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))) (bvule .cse0 (bvadd (_ bv8 64) .cse0)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_26|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_26| (_ BitVec 64)) (v_ArrVal_984 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_987 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_26|))) (forall ((v_ArrVal_989 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_988 (_ BitVec 64))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse4 (store .cse2 |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_983))) (store .cse4 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse4 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| |c_ULTIMATE.start___list_add_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_988) (select (select (store (let ((.cse5 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start___list_add_~next#1.base| (store (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start___list_add_~next#1.base|) .cse6 |c_ULTIMATE.start___list_add_~new#1.base|)) |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_984))) (store .cse5 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse5 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| v_ArrVal_987))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_989) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))))))))) is different from false
[2024-11-23 22:41:46,302 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (bvadd (_ bv8 64) |c_ULTIMATE.start_list_add_tail_~head#1.offset|))) (let ((.cse2 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_list_add_tail_~head#1.base| (store (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_list_add_tail_~head#1.base|) .cse6 |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) (.cse3 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_26| (_ BitVec 64)) (v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64)))) (or (forall ((v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (let ((.cse1 (store .cse2 |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_983))) (store .cse1 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base| (store (select .cse1 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base|) |c_ULTIMATE.start_list_add_tail_#t~mem3#1.offset| |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))) (bvule .cse0 (bvadd (_ bv8 64) .cse0)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_26|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_26| (_ BitVec 64)) (v_ArrVal_984 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_987 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_26|))) (forall ((v_ArrVal_989 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_988 (_ BitVec 64))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse4 (store .cse2 |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_983))) (store .cse4 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base| (store (select .cse4 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base|) |c_ULTIMATE.start_list_add_tail_#t~mem3#1.offset| |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_988) (select (select (store (let ((.cse5 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_list_add_tail_~head#1.base| (store (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_list_add_tail_~head#1.base|) .cse6 |c_ULTIMATE.start_list_add_tail_~new#1.base|)) |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_984))) (store .cse5 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base| (store (select .cse5 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base|) |c_ULTIMATE.start_list_add_tail_#t~mem3#1.offset| v_ArrVal_987))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_989) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))))))))) is different from false
[2024-11-23 22:41:47,126 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_list_add_tail_~head#1.base|)) (.cse10 (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_list_add_tail_~head#1.base|)) (.cse9 (bvadd (_ bv8 64) |c_ULTIMATE.start_list_add_tail_~head#1.offset|))) (let ((.cse4 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_list_add_tail_~head#1.base| (store .cse10 .cse9 |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) (.cse2 (select .cse8 .cse9)) (.cse3 (select .cse10 .cse9)) (.cse5 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_26| (_ BitVec 64)) (v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64)))) (or (forall ((v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (let ((.cse1 (store .cse4 |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_983))) (store .cse1 .cse2 (store (select .cse1 .cse2) .cse3 |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse5))) (bvule .cse0 (bvadd (_ bv8 64) .cse0)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_26|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_26| (_ BitVec 64)) (v_ArrVal_984 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_987 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_26|))) (forall ((v_ArrVal_989 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_988 (_ BitVec 64))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse6 (store .cse4 |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_983))) (store .cse6 .cse2 (store (select .cse6 .cse2) .cse3 |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse5)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_988) (select (select (store (let ((.cse7 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_list_add_tail_~head#1.base| (store .cse8 .cse9 |c_ULTIMATE.start_list_add_tail_~new#1.base|)) |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_984))) (store .cse7 .cse2 (store (select .cse7 .cse2) .cse3 v_ArrVal_987))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_989) |c_ULTIMATE.start_create_~head~0#1.base|) .cse5))))))))) is different from false
[2024-11-23 22:41:48,051 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse9 (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse10 (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse6 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|)) (.cse4 (bvadd (_ bv4 64) |c_ULTIMATE.start_create_~ptr~0#1.offset|))) (let ((.cse5 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse10 .cse6 .cse4))) (.cse2 (select .cse9 .cse6)) (.cse3 (select .cse10 .cse6))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_26| (_ BitVec 64)) (v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64)))) (or (forall ((v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (let ((.cse1 (store .cse5 |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_983))) (store .cse1 .cse2 (store (select .cse1 .cse2) .cse3 .cse4))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse6))) (bvule .cse0 (bvadd (_ bv8 64) .cse0)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_26|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_26| (_ BitVec 64)) (v_ArrVal_984 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_987 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_26|))) (forall ((v_ArrVal_989 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_990 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_988 (_ BitVec 64))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse7 (store .cse5 |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_983))) (store .cse7 .cse2 (store (select .cse7 .cse2) .cse3 .cse4))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_990) |c_ULTIMATE.start_create_~head~0#1.base|) .cse6)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_988) (select (select (store (let ((.cse8 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse9 .cse6 |c_ULTIMATE.start_create_~ptr~0#1.base|)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_984))) (store .cse8 .cse2 (store (select .cse8 .cse2) .cse3 v_ArrVal_987))) |v_ULTIMATE.start_create_~ptr~0#1.base_26| v_ArrVal_989) |c_ULTIMATE.start_create_~head~0#1.base|) .cse6))))))))) is different from false
[2024-11-23 22:41:53,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2115 treesize of output 1959
[2024-11-23 22:42:36,441 INFO L349 Elim1Store]: treesize reduction 53, result has 62.4 percent of original size
[2024-11-23 22:42:36,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 13656 treesize of output 11151
[2024-11-23 22:42:36,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:42:36,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 764 treesize of output 744
[2024-11-23 22:42:36,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 463 treesize of output 431
[2024-11-23 22:42:36,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 377 treesize of output 373
[2024-11-23 22:42:37,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 304
[2024-11-23 22:42:37,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:42:37,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 391 treesize of output 311
[2024-11-23 22:42:37,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 437 treesize of output 377
[2024-11-23 22:42:37,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 179
[2024-11-23 22:42:38,926 INFO L349 Elim1Store]: treesize reduction 15, result has 67.4 percent of original size
[2024-11-23 22:42:38,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 5015 treesize of output 3694
[2024-11-23 22:42:39,962 INFO L349 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size
[2024-11-23 22:42:39,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 882 treesize of output 866
[2024-11-23 22:42:40,724 INFO L349 Elim1Store]: treesize reduction 23, result has 65.2 percent of original size
[2024-11-23 22:42:40,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 4658 treesize of output 4176
[2024-11-23 22:42:40,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:42:40,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 681 treesize of output 669
[2024-11-23 22:42:41,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 356
[2024-11-23 22:42:41,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 201
[2024-11-23 22:42:41,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 181
[2024-11-23 22:42:41,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 431 treesize of output 359
[2024-11-23 22:42:41,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 124
[2024-11-23 22:42:41,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 122
[2024-11-23 22:42:43,209 INFO L349 Elim1Store]: treesize reduction 53, result has 62.4 percent of original size
[2024-11-23 22:42:43,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 2710 treesize of output 2473
[2024-11-23 22:42:43,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:42:43,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 428 treesize of output 420
[2024-11-23 22:42:43,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 177
[2024-11-23 22:42:43,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 343
[2024-11-23 22:42:43,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 304
[2024-11-23 22:42:43,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:42:43,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 391 treesize of output 311
[2024-11-23 22:42:43,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 437 treesize of output 377
[2024-11-23 22:42:43,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 179
[2024-11-23 22:42:49,485 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 3 times theorem prover too weak. 0 trivial. 5 not checked.
[2024-11-23 22:42:49,485 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:42:49,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627923171]
[2024-11-23 22:42:49,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627923171] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:42:49,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:42:49,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 32
[2024-11-23 22:42:49,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723386146]
[2024-11-23 22:42:49,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:42:49,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states
[2024-11-23 22:42:49,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:42:49,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2024-11-23 22:42:49,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=626, Unknown=19, NotChecked=280, Total=1056
[2024-11-23 22:42:49,487 INFO L87 Difference]: Start difference. First operand 142 states and 161 transitions. Second operand has 33 states, 32 states have (on average 1.78125) internal successors, (57), 33 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:43:23,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:43:50,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:43:52,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:43:55,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:44:16,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:44:33,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:44:37,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:44:41,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:44:46,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:44:50,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:45:15,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:45:19,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:45:25,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:45:29,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:45:52,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:45:53,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:45:56,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:00,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:02,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:07,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:11,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:24,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:26,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:31,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:32,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:35,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:49,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:46:52,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:47:04,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:47:07,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:47:32,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:47:40,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:47:41,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:47:48,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 22:47:58,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:47:58,295 INFO L93 Difference]: Finished difference Result 143 states and 160 transitions.
[2024-11-23 22:47:58,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2024-11-23 22:47:58,301 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.78125) internal successors, (57), 33 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29
[2024-11-23 22:47:58,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:47:58,301 INFO L225 Difference]: With dead ends: 143
[2024-11-23 22:47:58,302 INFO L226 Difference]: Without dead ends: 143
[2024-11-23 22:47:58,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 209.7s TimeCoverageRelationStatistics Valid=398, Invalid=1923, Unknown=51, NotChecked=490, Total=2862
[2024-11-23 22:47:58,303 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 71 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 22 mSolverCounterUnsat, 40 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 40 IncrementalHoareTripleChecker+Unknown, 452 IncrementalHoareTripleChecker+Unchecked, 163.0s IncrementalHoareTripleChecker+Time
[2024-11-23 22:47:58,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 805 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 740 Invalid, 40 Unknown, 452 Unchecked, 163.0s Time]
[2024-11-23 22:47:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2024-11-23 22:47:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 142.
[2024-11-23 22:47:58,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 120 states have (on average 1.325) internal successors, (159), 141 states have internal predecessors, (159), 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)
[2024-11-23 22:47:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 159 transitions.
[2024-11-23 22:47:58,307 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 159 transitions. Word has length 29
[2024-11-23 22:47:58,307 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:47:58,307 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 159 transitions.
[2024-11-23 22:47:58,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.78125) internal successors, (57), 33 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:47:58,307 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 159 transitions.
[2024-11-23 22:47:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2024-11-23 22:47:58,307 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:47:58,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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]
[2024-11-23 22:47:58,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0
[2024-11-23 22:47:58,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:47:58,508 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] ===
[2024-11-23 22:47:58,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:47:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2015858392, now seen corresponding path program 1 times
[2024-11-23 22:47:58,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:47:58,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732315902]
[2024-11-23 22:47:58,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:47:58,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:47:58,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:47:58,512 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:47:58,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b6d044-792c-4498-affc-f448ac70ddd3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process
[2024-11-23 22:47:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:47:58,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 64 conjuncts are in the unsatisfiable core
[2024-11-23 22:47:58,704 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:47:59,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:47:59,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:48:00,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 22:48:00,973 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-23 22:48:00,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-23 22:48:01,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:48:01,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-23 22:48:03,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:48:03,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 22:48:06,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:48:07,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-23 22:48:07,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 22:48:08,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15
[2024-11-23 22:48:12,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 22:48:15,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 22:48:15,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 19
[2024-11-23 22:48:15,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3
[2024-11-23 22:48:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:48:17,274 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:48:24,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 168
[2024-11-23 22:48:36,195 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 22:48:36,221 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 22:48:37,654 INFO L224 Elim1Store]: Index analysis took 212 ms
[2024-11-23 22:48:50,380 WARN L286 SmtUtils]: Spent 12.61s on a formula simplification. DAG size of input: 139 DAG size of output: 103 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1)
[2024-11-23 22:48:50,380 INFO L349 Elim1Store]: treesize reduction 132, result has 62.2 percent of original size
[2024-11-23 22:48:50,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 7958 treesize of output 7686