./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
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_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/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_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/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 32bit --witnessprinter.graph.data.programhash 9a343b75818c5d561b79c31bb62e9abdd9bdb0bf3f01f7efa313d9ef0f4204f4
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:58:48,979 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:58:49,039 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-23 23:58:49,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:58:49,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:58:49,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:58:49,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:58:49,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:58:49,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:58:49,070 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:58:49,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:58:49,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:58:49,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:58:49,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:58:49,071 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:58:49,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:58:49,071 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:58:49,071 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:58:49,072 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:58:49,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:58:49,072 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-23 23:58:49,072 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-23 23:58:49,072 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-23 23:58:49,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:58:49,072 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 23:58:49,072 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:58:49,073 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:58:49,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:58:49,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:58:49,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:58:49,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:58:49,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:58:49,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:58:49,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 23:58:49,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:58:49,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:58:49,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:58:49,075 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:58:49,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:58:49,075 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_a424e47a-444b-4b8a-b474-04227de8f46c/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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a343b75818c5d561b79c31bb62e9abdd9bdb0bf3f01f7efa313d9ef0f4204f4
[2024-11-23 23:58:49,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:58:49,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:58:49,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:58:49,472 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:58:49,473 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:58:49,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i
[2024-11-23 23:58:52,673 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data/585ad57ce/c1a8401c85b940c89aeb4495f7154ed8/FLAGff7374229
[2024-11-23 23:58:53,132 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:58:53,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i
[2024-11-23 23:58:53,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data/585ad57ce/c1a8401c85b940c89aeb4495f7154ed8/FLAGff7374229
[2024-11-23 23:58:53,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data/585ad57ce/c1a8401c85b940c89aeb4495f7154ed8
[2024-11-23 23:58:53,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:58:53,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:58:53,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:58:53,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:58:53,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:58:53,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:58:53" (1/1) ...
[2024-11-23 23:58:53,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f187f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:53, skipping insertion in model container
[2024-11-23 23:58:53,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:58:53" (1/1) ...
[2024-11-23 23:58:53,360 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:58:53,972 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,005 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,010 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,014 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,022 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,068 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,071 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,074 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,081 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,113 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,113 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,116 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,116 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,155 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,155 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,161 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,161 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,178 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,178 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,181 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,181 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,196 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,197 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,199 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,199 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,201 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,203 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,205 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,206 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,207 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,211 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:58:54,227 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:58:54,250 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 23:58:54,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2d067d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:54, skipping insertion in model container
[2024-11-23 23:58:54,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:58:54,251 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2024-11-23 23:58:54,255 INFO L158 Benchmark]: Toolchain (without parser) took 1004.06ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 60.0MB in the end (delta: 29.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-11-23 23:58:54,257 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:58:54,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1000.87ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 60.0MB in the end (delta: 29.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-11-23 23:58:54,259 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1000.87ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 60.0MB in the end (delta: 29.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 757]: 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_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/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_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/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 32bit --witnessprinter.graph.data.programhash 9a343b75818c5d561b79c31bb62e9abdd9bdb0bf3f01f7efa313d9ef0f4204f4
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:58:57,163 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:58:57,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-11-23 23:58:57,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:58:57,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:58:57,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:58:57,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:58:57,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:58:57,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:58:57,331 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:58:57,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:58:57,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:58:57,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:58:57,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:58:57,333 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:58:57,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:58:57,333 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:58:57,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:58:57,333 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:58:57,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:58:57,334 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-23 23:58:57,334 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-23 23:58:57,334 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-23 23:58:57,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:58:57,334 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 23:58:57,334 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 23:58:57,334 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 23:58:57,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 23:58:57,337 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:58:57,337 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:58:57,337 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:58:57,338 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:58:57,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:58:57,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:58:57,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:58:57,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:58:57,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:58:57,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:58:57,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:58:57,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:58:57,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:58:57,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:58:57,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:58:57,340 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 23:58:57,341 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 23:58:57,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:58:57,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:58:57,341 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:58:57,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:58:57,342 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_a424e47a-444b-4b8a-b474-04227de8f46c/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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a343b75818c5d561b79c31bb62e9abdd9bdb0bf3f01f7efa313d9ef0f4204f4
[2024-11-23 23:58:57,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:58:57,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:58:57,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:58:57,807 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:58:57,808 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:58:57,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i
[2024-11-23 23:59:01,090 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data/580809271/411d0be7eece4f1da9a5ea3097275db9/FLAGaa730a38f
[2024-11-23 23:59:01,583 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:59:01,584 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i
[2024-11-23 23:59:01,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data/580809271/411d0be7eece4f1da9a5ea3097275db9/FLAGaa730a38f
[2024-11-23 23:59:01,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/data/580809271/411d0be7eece4f1da9a5ea3097275db9
[2024-11-23 23:59:01,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:59:01,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:59:01,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:59:01,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:59:01,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:59:01,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:59:01" (1/1) ...
[2024-11-23 23:59:01,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccd6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:01, skipping insertion in model container
[2024-11-23 23:59:01,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:59:01" (1/1) ...
[2024-11-23 23:59:01,792 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:59:02,454 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,495 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,501 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,507 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,516 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,561 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,565 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,572 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,593 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,640 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,640 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,644 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,645 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,670 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,671 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,675 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,675 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,696 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,697 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,701 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,701 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,724 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,724 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,731 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,731 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,733 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,743 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,748 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,750 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,751 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,761 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,783 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:59:02,811 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2024-11-23 23:59:02,840 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:59:02,886 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,928 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,931 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,938 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:02,991 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,023 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,025 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,028 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,036 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,067 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,068 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,074 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,074 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,090 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,090 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,098 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,099 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,116 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,116 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,119 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,119 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,136 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,136 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,139 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,140 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,143 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,145 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,145 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,146 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,147 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,151 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:59:03,159 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:59:03,169 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:59:03,408 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:59:03,489 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:59:03,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03 WrapperNode
[2024-11-23 23:59:03,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:59:03,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:59:03,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:59:03,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:59:03,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:03,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:03,735 INFO L138 Inliner]: procedures = 180, calls = 558, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2353
[2024-11-23 23:59:03,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:59:03,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:59:03,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:59:03,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:59:03,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:03,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:03,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,025 INFO L175 MemorySlicer]: Split 528 memory accesses to 3 slices as follows [2, 106, 420]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 94 writes are split as follows [0, 4, 90].
[2024-11-23 23:59:04,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,134 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:59:04,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:59:04,259 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:59:04,259 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:59:04,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (1/1) ...
[2024-11-23 23:59:04,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:59:04,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:59:04,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:59:04,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:59:04,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0
[2024-11-23 23:59:04,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1
[2024-11-23 23:59:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2
[2024-11-23 23:59:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int
[2024-11-23 23:59:04,340 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int
[2024-11-23 23:59:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-23 23:59:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-23 23:59:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-23 23:59:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-23 23:59:04,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-23 23:59:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2024-11-23 23:59:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2024-11-23 23:59:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2
[2024-11-23 23:59:04,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2024-11-23 23:59:04,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2024-11-23 23:59:04,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2
[2024-11-23 23:59:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-23 23:59:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:59:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-23 23:59:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-23 23:59:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-23 23:59:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-23 23:59:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-23 23:59:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-23 23:59:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-23 23:59:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-23 23:59:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-23 23:59:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-23 23:59:04,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-23 23:59:04,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-23 23:59:04,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-23 23:59:04,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-23 23:59:04,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:59:04,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:59:04,825 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:59:04,827 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:59:04,958 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-11-23 23:59:05,009 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-11-23 23:59:05,044 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-11-23 23:59:16,615 INFO L? ?]: Removed 2231 outVars from TransFormulas that were not future-live.
[2024-11-23 23:59:16,617 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:59:16,707 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:59:16,708 INFO L312 CfgBuilder]: Removed 90 assume(true) statements.
[2024-11-23 23:59:16,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:16 BoogieIcfgContainer
[2024-11-23 23:59:16,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:59:16,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:59:16,714 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:59:16,720 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:59:16,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:59:01" (1/3) ...
[2024-11-23 23:59:16,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff67f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:59:16, skipping insertion in model container
[2024-11-23 23:59:16,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:03" (2/3) ...
[2024-11-23 23:59:16,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff67f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:59:16, skipping insertion in model container
[2024-11-23 23:59:16,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:16" (3/3) ...
[2024-11-23 23:59:16,726 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test10-2.i
[2024-11-23 23:59:16,745 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:59:16,747 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test10-2.i that has 6 procedures, 2287 locations, 1 initial locations, 89 loop locations, and 1091 error locations.
[2024-11-23 23:59:16,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:59:16,900 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;@2bbf5a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:59:16,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1091 error locations.
[2024-11-23 23:59:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 2277 states, 1174 states have (on average 2.1873935264054514) internal successors, (2568), 2263 states have internal predecessors, (2568), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-23 23:59:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-23 23:59:16,925 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:59:16,926 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-23 23:59:16,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-23 23:59:16,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:59:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash 84472, now seen corresponding path program 1 times
[2024-11-23 23:59:16,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:59:16,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043067710]
[2024-11-23 23:59:16,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:59:16,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:16,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:59:16,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:59:16,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 23:59:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:59:17,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 23:59:17,309 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:59:17,376 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 23:59:17,410 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 23:59:17,410 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:59:17,411 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:59:17,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043067710]
[2024-11-23 23:59:17,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043067710] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:59:17,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:59:17,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:59:17,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779789965]
[2024-11-23 23:59:17,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:59:17,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:59:17,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:59:17,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:59:17,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:59:17,465 INFO L87 Difference]: Start difference. First operand has 2277 states, 1174 states have (on average 2.1873935264054514) internal successors, (2568), 2263 states have internal predecessors, (2568), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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 23:59:23,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:59:23,469 INFO L93 Difference]: Finished difference Result 2941 states and 3125 transitions.
[2024-11-23 23:59:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:59:23,472 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 23:59:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:59:23,527 INFO L225 Difference]: With dead ends: 2941
[2024-11-23 23:59:23,527 INFO L226 Difference]: Without dead ends: 2939
[2024-11-23 23:59:23,530 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 23:59:23,534 INFO L435 NwaCegarLoop]: 1401 mSDtfsCounter, 2143 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2024-11-23 23:59:23,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2153 Valid, 1879 Invalid, 1501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2024-11-23 23:59:23,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states.
[2024-11-23 23:59:23,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 2421.
[2024-11-23 23:59:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 1346 states have (on average 2.0222882615156017) internal successors, (2722), 2405 states have internal predecessors, (2722), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 23:59:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 2754 transitions.
[2024-11-23 23:59:23,756 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 2754 transitions. Word has length 3
[2024-11-23 23:59:23,756 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:59:23,756 INFO L471 AbstractCegarLoop]: Abstraction has 2421 states and 2754 transitions.
[2024-11-23 23:59:23,757 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 23:59:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 2754 transitions.
[2024-11-23 23:59:23,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-23 23:59:23,757 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:59:23,757 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-23 23:59:23,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 23:59:23,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:23,961 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-23 23:59:23,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:59:23,962 INFO L85 PathProgramCache]: Analyzing trace with hash 84473, now seen corresponding path program 1 times
[2024-11-23 23:59:23,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:59:23,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231513197]
[2024-11-23 23:59:23,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:59:23,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:23,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:59:23,965 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:59:23,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 23:59:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:59:24,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 23:59:24,203 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:59:24,217 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 23:59:24,243 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 23:59:24,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:59:24,243 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:59:24,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231513197]
[2024-11-23 23:59:24,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231513197] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:59:24,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:59:24,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:59:24,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938002290]
[2024-11-23 23:59:24,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:59:24,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:59:24,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:59:24,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:59:24,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:59:24,248 INFO L87 Difference]: Start difference. First operand 2421 states and 2754 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 23:59:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:59:31,931 INFO L93 Difference]: Finished difference Result 3223 states and 3636 transitions.
[2024-11-23 23:59:31,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:59:31,932 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 23:59:31,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:59:31,947 INFO L225 Difference]: With dead ends: 3223
[2024-11-23 23:59:31,947 INFO L226 Difference]: Without dead ends: 3223
[2024-11-23 23:59:31,947 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 23:59:31,948 INFO L435 NwaCegarLoop]: 2039 mSDtfsCounter, 876 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 3347 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time
[2024-11-23 23:59:31,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 3347 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time]
[2024-11-23 23:59:31,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states.
[2024-11-23 23:59:32,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 2894.
[2024-11-23 23:59:32,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 1817 states have (on average 1.9796367638965326) internal successors, (3597), 2875 states have internal predecessors, (3597), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-23 23:59:32,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3635 transitions.
[2024-11-23 23:59:32,039 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3635 transitions. Word has length 3
[2024-11-23 23:59:32,039 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:59:32,039 INFO L471 AbstractCegarLoop]: Abstraction has 2894 states and 3635 transitions.
[2024-11-23 23:59:32,039 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 23:59:32,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3635 transitions.
[2024-11-23 23:59:32,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-23 23:59:32,040 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:59:32,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:59:32,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-23 23:59:32,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:32,241 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-23 23:59:32,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:59:32,242 INFO L85 PathProgramCache]: Analyzing trace with hash 327660049, now seen corresponding path program 1 times
[2024-11-23 23:59:32,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:59:32,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037959120]
[2024-11-23 23:59:32,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:59:32,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:32,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:59:32,248 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:59:32,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 23:59:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:59:32,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:59:32,517 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:59:32,524 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 23:59:32,629 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2024-11-23 23:59:32,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 18
[2024-11-23 23:59:32,725 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 23:59:32,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:59:32,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:59:32,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037959120]
[2024-11-23 23:59:32,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037959120] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:59:32,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:59:32,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:59:32,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146770422]
[2024-11-23 23:59:32,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:59:32,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:59:32,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:59:32,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:59:32,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:59:32,728 INFO L87 Difference]: Start difference. First operand 2894 states and 3635 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 23:59:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:59:44,994 INFO L93 Difference]: Finished difference Result 4582 states and 5108 transitions.
[2024-11-23 23:59:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:59:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8
[2024-11-23 23:59:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:59:45,015 INFO L225 Difference]: With dead ends: 4582
[2024-11-23 23:59:45,015 INFO L226 Difference]: Without dead ends: 4582
[2024-11-23 23:59:45,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 23:59:45,016 INFO L435 NwaCegarLoop]: 2308 mSDtfsCounter, 2332 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:59:45,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 4918 Invalid, 3153 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time]
[2024-11-23 23:59:45,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states.
[2024-11-23 23:59:45,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 3181.
[2024-11-23 23:59:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2104 states have (on average 1.9757604562737643) internal successors, (4157), 3162 states have internal predecessors, (4157), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-23 23:59:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4195 transitions.
[2024-11-23 23:59:45,117 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4195 transitions. Word has length 8
[2024-11-23 23:59:45,118 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:59:45,118 INFO L471 AbstractCegarLoop]: Abstraction has 3181 states and 4195 transitions.
[2024-11-23 23:59:45,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 23:59:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4195 transitions.
[2024-11-23 23:59:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-23 23:59:45,122 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:59:45,122 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:59:45,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-23 23:59:45,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:45,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-23 23:59:45,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:59:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1567526949, now seen corresponding path program 1 times
[2024-11-23 23:59:45,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:59:45,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819546926]
[2024-11-23 23:59:45,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:59:45,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:45,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:59:45,330 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:59:45,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 23:59:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:59:45,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 23:59:45,583 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:59:45,597 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 23:59:45,617 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 23:59:45,617 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:59:45,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:59:45,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819546926]
[2024-11-23 23:59:45,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819546926] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:59:45,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:59:45,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:59:45,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493461244]
[2024-11-23 23:59:45,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:59:45,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:59:45,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:59:45,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:59:45,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:59:45,618 INFO L87 Difference]: Start difference. First operand 3181 states and 4195 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 23:59:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:59:50,797 INFO L93 Difference]: Finished difference Result 3894 states and 4947 transitions.
[2024-11-23 23:59:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:59:50,798 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 23:59:50,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:59:50,810 INFO L225 Difference]: With dead ends: 3894
[2024-11-23 23:59:50,810 INFO L226 Difference]: Without dead ends: 3894
[2024-11-23 23:59:50,810 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 23:59:50,811 INFO L435 NwaCegarLoop]: 2226 mSDtfsCounter, 1921 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:59:50,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 2903 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2024-11-23 23:59:50,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states.
[2024-11-23 23:59:50,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3089.
[2024-11-23 23:59:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 2104 states have (on average 1.9120722433460076) internal successors, (4023), 3070 states have internal predecessors, (4023), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-23 23:59:50,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4061 transitions.
[2024-11-23 23:59:50,886 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4061 transitions. Word has length 9
[2024-11-23 23:59:50,886 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:59:50,886 INFO L471 AbstractCegarLoop]: Abstraction has 3089 states and 4061 transitions.
[2024-11-23 23:59:50,886 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 23:59:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4061 transitions.
[2024-11-23 23:59:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-23 23:59:50,887 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:59:50,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:59:50,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-23 23:59:51,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:51,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-23 23:59:51,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:59:51,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1567526950, now seen corresponding path program 1 times
[2024-11-23 23:59:51,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:59:51,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906017637]
[2024-11-23 23:59:51,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:59:51,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:51,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:59:51,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:59:51,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 23:59:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:59:51,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 23:59:51,327 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:59:51,345 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 23:59:51,414 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 23:59:51,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:59:51,415 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:59:51,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906017637]
[2024-11-23 23:59:51,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906017637] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:59:51,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:59:51,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:59:51,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976901179]
[2024-11-23 23:59:51,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:59:51,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:59:51,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:59:51,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:59:51,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:59:51,417 INFO L87 Difference]: Start difference. First operand 3089 states and 4061 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 23:59:58,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:59:58,622 INFO L93 Difference]: Finished difference Result 4703 states and 6163 transitions.
[2024-11-23 23:59:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:59:58,623 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 23:59:58,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:59:58,638 INFO L225 Difference]: With dead ends: 4703
[2024-11-23 23:59:58,638 INFO L226 Difference]: Without dead ends: 4703
[2024-11-23 23:59:58,638 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 23:59:58,639 INFO L435 NwaCegarLoop]: 2583 mSDtfsCounter, 1424 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 3691 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:59:58,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 3691 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2024-11-23 23:59:58,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4703 states.
[2024-11-23 23:59:58,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4703 to 3256.
[2024-11-23 23:59:58,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 2281 states have (on average 1.8952213941253837) internal successors, (4323), 3237 states have internal predecessors, (4323), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-23 23:59:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4361 transitions.
[2024-11-23 23:59:58,745 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4361 transitions. Word has length 9
[2024-11-23 23:59:58,745 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:59:58,745 INFO L471 AbstractCegarLoop]: Abstraction has 3256 states and 4361 transitions.
[2024-11-23 23:59:58,746 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 23:59:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4361 transitions.
[2024-11-23 23:59:58,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-23 23:59:58,746 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:59:58,746 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:59:58,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-23 23:59:58,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:58,947 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr638REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-23 23:59:58,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:59:58,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2037202196, now seen corresponding path program 1 times
[2024-11-23 23:59:58,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:59:58,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925551524]
[2024-11-23 23:59:58,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:59:58,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:59:58,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:59:58,954 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:59:58,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-23 23:59:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:59:59,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 23:59:59,175 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:59:59,183 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 23:59:59,238 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 23:59:59,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:59:59,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:59:59,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925551524]
[2024-11-23 23:59:59,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925551524] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:59:59,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:59:59,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:59:59,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374167619]
[2024-11-23 23:59:59,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:59:59,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:59:59,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:59:59,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:59:59,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:59:59,240 INFO L87 Difference]: Start difference. First operand 3256 states and 4361 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)
[2024-11-24 00:00:05,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:00:05,193 INFO L93 Difference]: Finished difference Result 3722 states and 4677 transitions.
[2024-11-24 00:00:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:00:05,194 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
[2024-11-24 00:00:05,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:00:05,204 INFO L225 Difference]: With dead ends: 3722
[2024-11-24 00:00:05,204 INFO L226 Difference]: Without dead ends: 3722
[2024-11-24 00:00:05,204 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
[2024-11-24 00:00:05,205 INFO L435 NwaCegarLoop]: 1349 mSDtfsCounter, 2106 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2024-11-24 00:00:05,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 3027 Invalid, 2372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2024-11-24 00:00:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states.
[2024-11-24 00:00:05,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3233.
[2024-11-24 00:00:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2281 states have (on average 1.875054800526085) internal successors, (4277), 3214 states have internal predecessors, (4277), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:00:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 4315 transitions.
[2024-11-24 00:00:05,260 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 4315 transitions. Word has length 11
[2024-11-24 00:00:05,260 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:00:05,261 INFO L471 AbstractCegarLoop]: Abstraction has 3233 states and 4315 transitions.
[2024-11-24 00:00:05,261 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)
[2024-11-24 00:00:05,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 4315 transitions.
[2024-11-24 00:00:05,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-24 00:00:05,261 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:00:05,261 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:00:05,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-24 00:00:05,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:05,462 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr639REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:00:05,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:00:05,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2037202195, now seen corresponding path program 1 times
[2024-11-24 00:00:05,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:00:05,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255410325]
[2024-11-24 00:00:05,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:00:05,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:05,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:00:05,465 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:00:05,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-24 00:00:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:00:05,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-24 00:00:05,705 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:00:05,713 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
[2024-11-24 00:00:05,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:00:05,812 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:00:05,813 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:00:05,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255410325]
[2024-11-24 00:00:05,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255410325] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:00:05,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:00:05,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:00:05,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388698001]
[2024-11-24 00:00:05,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:00:05,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:00:05,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:00:05,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:00:05,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:00:05,814 INFO L87 Difference]: Start difference. First operand 3233 states and 4315 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)
[2024-11-24 00:00:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:00:14,278 INFO L93 Difference]: Finished difference Result 3983 states and 5137 transitions.
[2024-11-24 00:00:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:00:14,279 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
[2024-11-24 00:00:14,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:00:14,291 INFO L225 Difference]: With dead ends: 3983
[2024-11-24 00:00:14,291 INFO L226 Difference]: Without dead ends: 3983
[2024-11-24 00:00:14,292 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
[2024-11-24 00:00:14,292 INFO L435 NwaCegarLoop]: 1944 mSDtfsCounter, 857 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 4327 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2024-11-24 00:00:14,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 4327 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2460 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time]
[2024-11-24 00:00:14,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states.
[2024-11-24 00:00:14,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3282.
[2024-11-24 00:00:14,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 2330 states have (on average 1.8622317596566524) internal successors, (4339), 3263 states have internal predecessors, (4339), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:00:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 4377 transitions.
[2024-11-24 00:00:14,357 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 4377 transitions. Word has length 11
[2024-11-24 00:00:14,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:00:14,357 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 4377 transitions.
[2024-11-24 00:00:14,357 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)
[2024-11-24 00:00:14,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 4377 transitions.
[2024-11-24 00:00:14,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-24 00:00:14,358 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:00:14,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:00:14,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-24 00:00:14,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:14,559 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr663REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:00:14,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:00:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash 753951524, now seen corresponding path program 1 times
[2024-11-24 00:00:14,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:00:14,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031635751]
[2024-11-24 00:00:14,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:00:14,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:14,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:00:14,564 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:00:14,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-24 00:00:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:00:14,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:00:14,841 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:00:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:00:14,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:00:14,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:00:14,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031635751]
[2024-11-24 00:00:14,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031635751] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:00:14,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:00:14,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:00:14,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267705789]
[2024-11-24 00:00:14,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:00:14,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:00:14,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:00:14,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:00:14,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:00:14,873 INFO L87 Difference]: Start difference. First operand 3282 states and 4377 transitions. Second operand has 4 states, 4 states have (on average 3.25) 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)
[2024-11-24 00:00:15,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:00:15,041 INFO L93 Difference]: Finished difference Result 3204 states and 4256 transitions.
[2024-11-24 00:00:15,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:00:15,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) 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
[2024-11-24 00:00:15,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:00:15,065 INFO L225 Difference]: With dead ends: 3204
[2024-11-24 00:00:15,065 INFO L226 Difference]: Without dead ends: 3204
[2024-11-24 00:00:15,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:00:15,066 INFO L435 NwaCegarLoop]: 2182 mSDtfsCounter, 45 mSDsluCounter, 4341 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:00:15,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 6523 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:00:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states.
[2024-11-24 00:00:15,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 3198.
[2024-11-24 00:00:15,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 2265 states have (on average 1.8596026490066224) internal successors, (4212), 3179 states have internal predecessors, (4212), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:00:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 4250 transitions.
[2024-11-24 00:00:15,144 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 4250 transitions. Word has length 13
[2024-11-24 00:00:15,144 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:00:15,145 INFO L471 AbstractCegarLoop]: Abstraction has 3198 states and 4250 transitions.
[2024-11-24 00:00:15,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) 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)
[2024-11-24 00:00:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 4250 transitions.
[2024-11-24 00:00:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-11-24 00:00:15,146 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:00:15,146 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]
[2024-11-24 00:00:15,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-24 00:00:15,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:15,347 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr324REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:00:15,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:00:15,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1773122699, now seen corresponding path program 1 times
[2024-11-24 00:00:15,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:00:15,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1659717382]
[2024-11-24 00:00:15,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:00:15,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:15,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:00:15,351 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:00:15,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-24 00:00:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:00:15,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 00:00:15,666 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:00:15,676 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
[2024-11-24 00:00:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:00:15,756 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:00:15,756 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:00:15,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659717382]
[2024-11-24 00:00:15,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659717382] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:00:15,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:00:15,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:00:15,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553138121]
[2024-11-24 00:00:15,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:00:15,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:00:15,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:00:15,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:00:15,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:00:15,758 INFO L87 Difference]: Start difference. First operand 3198 states and 4250 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:00:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:00:22,422 INFO L93 Difference]: Finished difference Result 3888 states and 4939 transitions.
[2024-11-24 00:00:22,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:00:22,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 21
[2024-11-24 00:00:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:00:22,434 INFO L225 Difference]: With dead ends: 3888
[2024-11-24 00:00:22,434 INFO L226 Difference]: Without dead ends: 3888
[2024-11-24 00:00:22,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:00:22,435 INFO L435 NwaCegarLoop]: 2076 mSDtfsCounter, 1884 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2024-11-24 00:00:22,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 4304 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2727 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2024-11-24 00:00:22,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states.
[2024-11-24 00:00:22,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3175.
[2024-11-24 00:00:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2265 states have (on average 1.8189845474613686) internal successors, (4120), 3156 states have internal predecessors, (4120), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:00:22,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4158 transitions.
[2024-11-24 00:00:22,489 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4158 transitions. Word has length 21
[2024-11-24 00:00:22,489 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:00:22,489 INFO L471 AbstractCegarLoop]: Abstraction has 3175 states and 4158 transitions.
[2024-11-24 00:00:22,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:00:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4158 transitions.
[2024-11-24 00:00:22,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-11-24 00:00:22,490 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:00:22,491 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]
[2024-11-24 00:00:22,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-24 00:00:22,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:22,691 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr325REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:00:22,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:00:22,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1773122698, now seen corresponding path program 1 times
[2024-11-24 00:00:22,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:00:22,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30629083]
[2024-11-24 00:00:22,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:00:22,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:22,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:00:22,698 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:00:22,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-24 00:00:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:00:23,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-24 00:00:23,066 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:00:23,089 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
[2024-11-24 00:00:23,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:00:23,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:00:23,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:00:23,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30629083]
[2024-11-24 00:00:23,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30629083] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:00:23,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:00:23,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:00:23,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939263268]
[2024-11-24 00:00:23,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:00:23,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:00:23,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:00:23,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:00:23,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:00:23,333 INFO L87 Difference]: Start difference. First operand 3175 states and 4158 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:00:33,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:00:33,247 INFO L93 Difference]: Finished difference Result 4601 states and 5919 transitions.
[2024-11-24 00:00:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:00:33,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 21
[2024-11-24 00:00:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:00:33,256 INFO L225 Difference]: With dead ends: 4601
[2024-11-24 00:00:33,256 INFO L226 Difference]: Without dead ends: 4601
[2024-11-24 00:00:33,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:00:33,256 INFO L435 NwaCegarLoop]: 2431 mSDtfsCounter, 1461 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 2860 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 5123 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time
[2024-11-24 00:00:33,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 5123 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2860 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time]
[2024-11-24 00:00:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states.
[2024-11-24 00:00:33,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 3291.
[2024-11-24 00:00:33,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3291 states, 2381 states have (on average 1.7891642167156656) internal successors, (4260), 3272 states have internal predecessors, (4260), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:00:33,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3291 states to 3291 states and 4298 transitions.
[2024-11-24 00:00:33,330 INFO L78 Accepts]: Start accepts. Automaton has 3291 states and 4298 transitions. Word has length 21
[2024-11-24 00:00:33,331 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:00:33,331 INFO L471 AbstractCegarLoop]: Abstraction has 3291 states and 4298 transitions.
[2024-11-24 00:00:33,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:00:33,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3291 states and 4298 transitions.
[2024-11-24 00:00:33,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-11-24 00:00:33,331 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:00:33,332 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]
[2024-11-24 00:00:33,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-24 00:00:33,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:33,532 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:00:33,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:00:33,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2007176747, now seen corresponding path program 1 times
[2024-11-24 00:00:33,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:00:33,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242633601]
[2024-11-24 00:00:33,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:00:33,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:33,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:00:33,535 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:00:33,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-24 00:00:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:00:33,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 00:00:33,805 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:00:33,817 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
[2024-11-24 00:00:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:00:33,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:00:33,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:00:33,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242633601]
[2024-11-24 00:00:33,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242633601] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:00:33,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:00:33,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:00:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317074215]
[2024-11-24 00:00:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:00:33,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:00:33,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:00:33,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:00:33,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:00:33,892 INFO L87 Difference]: Start difference. First operand 3291 states and 4298 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:00:40,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:00:40,962 INFO L93 Difference]: Finished difference Result 3973 states and 5025 transitions.
[2024-11-24 00:00:40,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:00:40,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 21
[2024-11-24 00:00:40,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:00:40,974 INFO L225 Difference]: With dead ends: 3973
[2024-11-24 00:00:40,974 INFO L226 Difference]: Without dead ends: 3973
[2024-11-24 00:00:40,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:00:40,975 INFO L435 NwaCegarLoop]: 2076 mSDtfsCounter, 1861 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time
[2024-11-24 00:00:40,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 4304 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time]
[2024-11-24 00:00:40,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3973 states.
[2024-11-24 00:00:41,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3973 to 3268.
[2024-11-24 00:00:41,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 2381 states have (on average 1.7698446031079378) internal successors, (4214), 3249 states have internal predecessors, (4214), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:00:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 4252 transitions.
[2024-11-24 00:00:41,028 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 4252 transitions. Word has length 21
[2024-11-24 00:00:41,029 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:00:41,029 INFO L471 AbstractCegarLoop]: Abstraction has 3268 states and 4252 transitions.
[2024-11-24 00:00:41,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:00:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 4252 transitions.
[2024-11-24 00:00:41,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-11-24 00:00:41,030 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:00:41,030 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]
[2024-11-24 00:00:41,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-24 00:00:41,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:41,235 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:00:41,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:00:41,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2007176746, now seen corresponding path program 1 times
[2024-11-24 00:00:41,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:00:41,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936255465]
[2024-11-24 00:00:41,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:00:41,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:41,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:00:41,240 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:00:41,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-24 00:00:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:00:41,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-24 00:00:41,564 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:00:41,589 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
[2024-11-24 00:00:41,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:00:41,761 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:00:41,761 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:00:41,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936255465]
[2024-11-24 00:00:41,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936255465] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:00:41,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:00:41,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:00:41,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505038864]
[2024-11-24 00:00:41,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:00:41,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:00:41,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:00:41,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:00:41,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:00:41,763 INFO L87 Difference]: Start difference. First operand 3268 states and 4252 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:00:52,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:00:52,323 INFO L93 Difference]: Finished difference Result 4694 states and 6013 transitions.
[2024-11-24 00:00:52,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:00:52,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 21
[2024-11-24 00:00:52,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:00:52,334 INFO L225 Difference]: With dead ends: 4694
[2024-11-24 00:00:52,334 INFO L226 Difference]: Without dead ends: 4694
[2024-11-24 00:00:52,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:00:52,335 INFO L435 NwaCegarLoop]: 2408 mSDtfsCounter, 1438 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time
[2024-11-24 00:00:52,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 5077 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2859 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time]
[2024-11-24 00:00:52,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states.
[2024-11-24 00:00:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 3384.
[2024-11-24 00:00:52,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 2497 states have (on average 1.7436924309171005) internal successors, (4354), 3365 states have internal predecessors, (4354), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:00:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 4392 transitions.
[2024-11-24 00:00:52,414 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 4392 transitions. Word has length 21
[2024-11-24 00:00:52,414 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:00:52,414 INFO L471 AbstractCegarLoop]: Abstraction has 3384 states and 4392 transitions.
[2024-11-24 00:00:52,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:00:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 4392 transitions.
[2024-11-24 00:00:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-24 00:00:52,416 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:00:52,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:00:52,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-24 00:00:52,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:52,620 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr325REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:00:52,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:00:52,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1475899896, now seen corresponding path program 1 times
[2024-11-24 00:00:52,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:00:52,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534520706]
[2024-11-24 00:00:52,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:00:52,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:00:52,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:00:52,627 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:00:52,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-24 00:00:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:00:53,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 00:00:53,021 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:00:53,039 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
[2024-11-24 00:00:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:00:53,417 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:00:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:00:54,198 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:00:54,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534520706]
[2024-11-24 00:00:54,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534520706] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:00:54,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:00:54,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-11-24 00:00:54,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751367664]
[2024-11-24 00:00:54,200 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:00:54,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 00:00:54,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:00:54,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 00:00:54,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-24 00:00:54,201 INFO L87 Difference]: Start difference. First operand 3384 states and 4392 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:19,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:19,021 INFO L93 Difference]: Finished difference Result 5087 states and 6549 transitions.
[2024-11-24 00:01:19,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-24 00:01:19,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 40
[2024-11-24 00:01:19,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:19,035 INFO L225 Difference]: With dead ends: 5087
[2024-11-24 00:01:19,036 INFO L226 Difference]: Without dead ends: 5087
[2024-11-24 00:01:19,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2024-11-24 00:01:19,037 INFO L435 NwaCegarLoop]: 2403 mSDtfsCounter, 2198 mSDsluCounter, 5413 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 7816 SdHoareTripleChecker+Invalid, 5286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:19,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 7816 Invalid, 5286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 5257 Invalid, 0 Unknown, 0 Unchecked, 24.4s Time]
[2024-11-24 00:01:19,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5087 states.
[2024-11-24 00:01:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5087 to 3550.
[2024-11-24 00:01:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2663 states have (on average 1.7228689447990988) internal successors, (4588), 3531 states have internal predecessors, (4588), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:01:19,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 4626 transitions.
[2024-11-24 00:01:19,103 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 4626 transitions. Word has length 40
[2024-11-24 00:01:19,103 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:19,103 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 4626 transitions.
[2024-11-24 00:01:19,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:19,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 4626 transitions.
[2024-11-24 00:01:19,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-24 00:01:19,105 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:19,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:19,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-24 00:01:19,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:19,309 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:19,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:19,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1855509769, now seen corresponding path program 1 times
[2024-11-24 00:01:19,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:19,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694951877]
[2024-11-24 00:01:19,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:19,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:19,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:19,317 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:19,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-24 00:01:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:19,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:19,755 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:19,765 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
[2024-11-24 00:01:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:20,161 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:01:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:21,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:21,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694951877]
[2024-11-24 00:01:21,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694951877] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:01:21,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:01:21,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-11-24 00:01:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386334063]
[2024-11-24 00:01:21,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:01:21,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 00:01:21,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:21,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 00:01:21,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-24 00:01:21,033 INFO L87 Difference]: Start difference. First operand 3550 states and 4626 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:46,645 INFO L93 Difference]: Finished difference Result 5253 states and 6783 transitions.
[2024-11-24 00:01:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 00:01:46,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 40
[2024-11-24 00:01:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:46,654 INFO L225 Difference]: With dead ends: 5253
[2024-11-24 00:01:46,654 INFO L226 Difference]: Without dead ends: 5253
[2024-11-24 00:01:46,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2024-11-24 00:01:46,655 INFO L435 NwaCegarLoop]: 2408 mSDtfsCounter, 3782 mSDsluCounter, 4402 mSDsCounter, 0 mSdLazyCounter, 4343 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3788 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:46,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3788 Valid, 6810 Invalid, 4375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 4343 Invalid, 0 Unknown, 0 Unchecked, 25.2s Time]
[2024-11-24 00:01:46,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5253 states.
[2024-11-24 00:01:46,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5253 to 3716.
[2024-11-24 00:01:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 2829 states have (on average 1.7044892188052316) internal successors, (4822), 3697 states have internal predecessors, (4822), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-24 00:01:46,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 4860 transitions.
[2024-11-24 00:01:46,723 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 4860 transitions. Word has length 40
[2024-11-24 00:01:46,724 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:46,724 INFO L471 AbstractCegarLoop]: Abstraction has 3716 states and 4860 transitions.
[2024-11-24 00:01:46,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:46,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 4860 transitions.
[2024-11-24 00:01:46,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-11-24 00:01:46,726 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:46,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:46,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2024-11-24 00:01:46,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:46,931 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr684REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:46,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:46,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1839620179, now seen corresponding path program 1 times
[2024-11-24 00:01:46,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:46,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364055233]
[2024-11-24 00:01:46,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:46,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:46,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:46,936 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:46,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-24 00:01:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:47,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:47,305 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:47,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:01:47,896 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:47,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364055233]
[2024-11-24 00:01:47,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364055233] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:47,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:47,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:01:47,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603978809]
[2024-11-24 00:01:47,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:47,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:01:47,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:47,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:01:47,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:01:47,898 INFO L87 Difference]: Start difference. First operand 3716 states and 4860 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:48,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:48,408 INFO L93 Difference]: Finished difference Result 5304 states and 6561 transitions.
[2024-11-24 00:01:48,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:01:48,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41
[2024-11-24 00:01:48,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:48,416 INFO L225 Difference]: With dead ends: 5304
[2024-11-24 00:01:48,416 INFO L226 Difference]: Without dead ends: 5304
[2024-11-24 00:01:48,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:01:48,417 INFO L435 NwaCegarLoop]: 2228 mSDtfsCounter, 1445 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 4285 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:48,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 4285 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-24 00:01:48,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5304 states.
[2024-11-24 00:01:48,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5304 to 4437.
[2024-11-24 00:01:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3546 states have (on average 1.6954314720812182) internal successors, (6012), 4411 states have internal predecessors, (6012), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-24 00:01:48,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 6064 transitions.
[2024-11-24 00:01:48,527 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 6064 transitions. Word has length 41
[2024-11-24 00:01:48,528 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:48,529 INFO L471 AbstractCegarLoop]: Abstraction has 4437 states and 6064 transitions.
[2024-11-24 00:01:48,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 6064 transitions.
[2024-11-24 00:01:48,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-24 00:01:48,531 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:48,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:48,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-24 00:01:48,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:48,736 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:48,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:48,737 INFO L85 PathProgramCache]: Analyzing trace with hash 277634507, now seen corresponding path program 1 times
[2024-11-24 00:01:48,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:48,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372798000]
[2024-11-24 00:01:48,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:48,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:48,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:48,744 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:48,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-24 00:01:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:49,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:49,103 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:49,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:01:49,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:49,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372798000]
[2024-11-24 00:01:49,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372798000] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:49,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:49,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:01:49,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019644271]
[2024-11-24 00:01:49,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:49,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:01:49,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:49,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:01:49,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:01:49,195 INFO L87 Difference]: Start difference. First operand 4437 states and 6064 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:49,336 INFO L93 Difference]: Finished difference Result 4419 states and 6030 transitions.
[2024-11-24 00:01:49,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:01:49,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52
[2024-11-24 00:01:49,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:49,346 INFO L225 Difference]: With dead ends: 4419
[2024-11-24 00:01:49,346 INFO L226 Difference]: Without dead ends: 4419
[2024-11-24 00:01:49,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:01:49,347 INFO L435 NwaCegarLoop]: 2138 mSDtfsCounter, 27 mSDsluCounter, 4239 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6377 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:49,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6377 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:01:49,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4419 states.
[2024-11-24 00:01:49,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4419 to 4419.
[2024-11-24 00:01:49,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 3528 states have (on average 1.6944444444444444) internal successors, (5978), 4393 states have internal predecessors, (5978), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-24 00:01:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 6030 transitions.
[2024-11-24 00:01:49,469 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 6030 transitions. Word has length 52
[2024-11-24 00:01:49,469 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:49,469 INFO L471 AbstractCegarLoop]: Abstraction has 4419 states and 6030 transitions.
[2024-11-24 00:01:49,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 6030 transitions.
[2024-11-24 00:01:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-11-24 00:01:49,471 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:49,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:49,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-11-24 00:01:49,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:49,672 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr427REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:49,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:49,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1298864554, now seen corresponding path program 1 times
[2024-11-24 00:01:49,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:49,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405504598]
[2024-11-24 00:01:49,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:49,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:49,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:49,679 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:49,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-24 00:01:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:50,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:50,091 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:50,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:01:50,553 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:50,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405504598]
[2024-11-24 00:01:50,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405504598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:50,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:50,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:01:50,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820491725]
[2024-11-24 00:01:50,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:50,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:01:50,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:50,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:01:50,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:01:50,555 INFO L87 Difference]: Start difference. First operand 4419 states and 6030 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:50,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:50,821 INFO L93 Difference]: Finished difference Result 5793 states and 7497 transitions.
[2024-11-24 00:01:50,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:01:50,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53
[2024-11-24 00:01:50,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:50,833 INFO L225 Difference]: With dead ends: 5793
[2024-11-24 00:01:50,833 INFO L226 Difference]: Without dead ends: 5793
[2024-11-24 00:01:50,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:01:50,834 INFO L435 NwaCegarLoop]: 2151 mSDtfsCounter, 1327 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:50,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 4242 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 00:01:50,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5793 states.
[2024-11-24 00:01:50,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5793 to 5166.
[2024-11-24 00:01:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 4271 states have (on average 1.6862561461016154) internal successors, (7202), 5133 states have internal predecessors, (7202), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 30 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-24 00:01:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 7268 transitions.
[2024-11-24 00:01:50,945 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 7268 transitions. Word has length 53
[2024-11-24 00:01:50,946 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:50,946 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 7268 transitions.
[2024-11-24 00:01:50,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:50,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 7268 transitions.
[2024-11-24 00:01:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-24 00:01:50,947 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:50,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:50,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-11-24 00:01:51,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:51,148 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr381REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:51,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:51,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1221998629, now seen corresponding path program 1 times
[2024-11-24 00:01:51,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000103173]
[2024-11-24 00:01:51,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:51,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:51,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:51,155 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:51,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-24 00:01:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:51,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:51,598 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:51,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:01:51,692 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:51,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000103173]
[2024-11-24 00:01:51,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000103173] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:51,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:51,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:01:51,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19419154]
[2024-11-24 00:01:51,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:51,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:01:51,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:51,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:01:51,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:01:51,697 INFO L87 Difference]: Start difference. First operand 5166 states and 7268 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:51,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:51,920 INFO L93 Difference]: Finished difference Result 4696 states and 6520 transitions.
[2024-11-24 00:01:51,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:01:51,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2024-11-24 00:01:51,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:51,931 INFO L225 Difference]: With dead ends: 4696
[2024-11-24 00:01:51,931 INFO L226 Difference]: Without dead ends: 4696
[2024-11-24 00:01:51,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:01:51,933 INFO L435 NwaCegarLoop]: 2103 mSDtfsCounter, 76 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 6216 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:51,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 6216 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:01:51,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4696 states.
[2024-11-24 00:01:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4696 to 4689.
[2024-11-24 00:01:52,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 3806 states have (on average 1.6939043615344194) internal successors, (6447), 4656 states have internal predecessors, (6447), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 30 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-24 00:01:52,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 6513 transitions.
[2024-11-24 00:01:52,047 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 6513 transitions. Word has length 56
[2024-11-24 00:01:52,047 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:52,048 INFO L471 AbstractCegarLoop]: Abstraction has 4689 states and 6513 transitions.
[2024-11-24 00:01:52,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:52,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 6513 transitions.
[2024-11-24 00:01:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-24 00:01:52,050 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:52,050 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:52,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-11-24 00:01:52,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:52,255 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:52,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:52,257 INFO L85 PathProgramCache]: Analyzing trace with hash 726112748, now seen corresponding path program 1 times
[2024-11-24 00:01:52,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:52,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230567230]
[2024-11-24 00:01:52,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:52,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:52,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:52,260 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:52,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-24 00:01:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:52,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:52,715 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:52,784 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:01:52,784 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:52,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230567230]
[2024-11-24 00:01:52,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230567230] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:52,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:52,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:01:52,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750965378]
[2024-11-24 00:01:52,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:52,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:01:52,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:52,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:01:52,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:01:52,787 INFO L87 Difference]: Start difference. First operand 4689 states and 6513 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:52,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:52,937 INFO L93 Difference]: Finished difference Result 4228 states and 5853 transitions.
[2024-11-24 00:01:52,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:01:52,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2024-11-24 00:01:52,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:52,947 INFO L225 Difference]: With dead ends: 4228
[2024-11-24 00:01:52,948 INFO L226 Difference]: Without dead ends: 4228
[2024-11-24 00:01:52,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:01:52,949 INFO L435 NwaCegarLoop]: 2057 mSDtfsCounter, 56 mSDsluCounter, 4041 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 6098 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:52,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 6098 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:01:52,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4228 states.
[2024-11-24 00:01:53,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4228 to 4225.
[2024-11-24 00:01:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4225 states, 3365 states have (on average 1.7188707280832096) internal successors, (5784), 4192 states have internal predecessors, (5784), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 30 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-24 00:01:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4225 states to 4225 states and 5850 transitions.
[2024-11-24 00:01:53,041 INFO L78 Accepts]: Start accepts. Automaton has 4225 states and 5850 transitions. Word has length 56
[2024-11-24 00:01:53,041 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:53,041 INFO L471 AbstractCegarLoop]: Abstraction has 4225 states and 5850 transitions.
[2024-11-24 00:01:53,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:53,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4225 states and 5850 transitions.
[2024-11-24 00:01:53,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-24 00:01:53,043 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:53,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:53,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2024-11-24 00:01:53,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:53,244 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:53,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash -8851329, now seen corresponding path program 1 times
[2024-11-24 00:01:53,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:53,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1879200364]
[2024-11-24 00:01:53,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:53,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:53,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:53,248 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:53,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-24 00:01:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:53,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:53,680 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:53,693 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-24 00:01:53,694 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-24 00:01:53,700 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 33 treesize of output 31
[2024-11-24 00:01:53,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-24 00:01:53,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22
[2024-11-24 00:01:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:53,795 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:01:53,795 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:53,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879200364]
[2024-11-24 00:01:53,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879200364] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:53,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:53,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:01:53,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345021657]
[2024-11-24 00:01:53,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:53,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:01:53,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:53,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:01:53,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:01:53,797 INFO L87 Difference]: Start difference. First operand 4225 states and 5850 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:55,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:55,336 INFO L93 Difference]: Finished difference Result 4790 states and 6332 transitions.
[2024-11-24 00:01:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:01:55,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60
[2024-11-24 00:01:55,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:55,343 INFO L225 Difference]: With dead ends: 4790
[2024-11-24 00:01:55,343 INFO L226 Difference]: Without dead ends: 4790
[2024-11-24 00:01:55,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:01:55,343 INFO L435 NwaCegarLoop]: 1963 mSDtfsCounter, 1702 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:55,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 5170 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-24 00:01:55,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4790 states.
[2024-11-24 00:01:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4790 to 3937.
[2024-11-24 00:01:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3937 states, 3080 states have (on average 1.7285714285714286) internal successors, (5324), 3907 states have internal predecessors, (5324), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30)
[2024-11-24 00:01:55,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3937 states to 3937 states and 5384 transitions.
[2024-11-24 00:01:55,412 INFO L78 Accepts]: Start accepts. Automaton has 3937 states and 5384 transitions. Word has length 60
[2024-11-24 00:01:55,413 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:55,413 INFO L471 AbstractCegarLoop]: Abstraction has 3937 states and 5384 transitions.
[2024-11-24 00:01:55,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3937 states and 5384 transitions.
[2024-11-24 00:01:55,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-24 00:01:55,414 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:55,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:55,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2024-11-24 00:01:55,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:55,615 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr381REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:55,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:55,615 INFO L85 PathProgramCache]: Analyzing trace with hash -706918385, now seen corresponding path program 1 times
[2024-11-24 00:01:55,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:55,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921167759]
[2024-11-24 00:01:55,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:55,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:55,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:55,619 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:55,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-24 00:01:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:56,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:56,051 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:56,056 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-24 00:01:56,057 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-24 00:01:56,057 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-24 00:01:56,060 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 30 treesize of output 39
[2024-11-24 00:01:56,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-24 00:01:56,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26
[2024-11-24 00:01:56,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:56,487 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:01:56,487 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:56,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921167759]
[2024-11-24 00:01:56,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921167759] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:56,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:56,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 00:01:56,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597654567]
[2024-11-24 00:01:56,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:56,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:01:56,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:56,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:01:56,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:01:56,488 INFO L87 Difference]: Start difference. First operand 3937 states and 5384 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:57,465 INFO L93 Difference]: Finished difference Result 4072 states and 5120 transitions.
[2024-11-24 00:01:57,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:01:57,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64
[2024-11-24 00:01:57,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:57,471 INFO L225 Difference]: With dead ends: 4072
[2024-11-24 00:01:57,471 INFO L226 Difference]: Without dead ends: 4072
[2024-11-24 00:01:57,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:01:57,472 INFO L435 NwaCegarLoop]: 2276 mSDtfsCounter, 906 mSDsluCounter, 5131 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 7407 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:57,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 7407 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-24 00:01:57,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4072 states.
[2024-11-24 00:01:57,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4072 to 3417.
[2024-11-24 00:01:57,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3417 states, 2560 states have (on average 1.764453125) internal successors, (4517), 3390 states have internal predecessors, (4517), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-24 00:01:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3417 states to 3417 states and 4571 transitions.
[2024-11-24 00:01:57,512 INFO L78 Accepts]: Start accepts. Automaton has 3417 states and 4571 transitions. Word has length 64
[2024-11-24 00:01:57,512 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:57,512 INFO L471 AbstractCegarLoop]: Abstraction has 3417 states and 4571 transitions.
[2024-11-24 00:01:57,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3417 states and 4571 transitions.
[2024-11-24 00:01:57,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-24 00:01:57,513 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:01:57,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:57,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2024-11-24 00:01:57,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:57,714 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:01:57,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:57,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2045940128, now seen corresponding path program 1 times
[2024-11-24 00:01:57,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:01:57,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007343563]
[2024-11-24 00:01:57,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:57,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:01:57,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:01:57,717 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:01:57,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-11-24 00:01:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:58,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 00:01:58,149 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:01:58,155 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
[2024-11-24 00:01:58,891 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 00:01:58,892 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
[2024-11-24 00:01:58,912 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:01:58,913 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
[2024-11-24 00:01:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:58,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:01:58,921 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:01:58,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007343563]
[2024-11-24 00:01:58,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007343563] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:58,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:58,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:01:58,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989053347]
[2024-11-24 00:01:58,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:58,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:01:58,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:01:58,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:01:58,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:01:58,923 INFO L87 Difference]: Start difference. First operand 3417 states and 4571 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:07,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:02:07,157 INFO L93 Difference]: Finished difference Result 3333 states and 4421 transitions.
[2024-11-24 00:02:07,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:02:07,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64
[2024-11-24 00:02:07,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:02:07,165 INFO L225 Difference]: With dead ends: 3333
[2024-11-24 00:02:07,165 INFO L226 Difference]: Without dead ends: 3333
[2024-11-24 00:02:07,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:02:07,167 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 1719 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 2622 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:02:07,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1833 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2622 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time]
[2024-11-24 00:02:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states.
[2024-11-24 00:02:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 3263.
[2024-11-24 00:02:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 2490 states have (on average 1.702409638554217) internal successors, (4239), 3236 states have internal predecessors, (4239), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-24 00:02:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 4293 transitions.
[2024-11-24 00:02:07,203 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 4293 transitions. Word has length 64
[2024-11-24 00:02:07,203 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:02:07,203 INFO L471 AbstractCegarLoop]: Abstraction has 3263 states and 4293 transitions.
[2024-11-24 00:02:07,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:07,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 4293 transitions.
[2024-11-24 00:02:07,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-11-24 00:02:07,204 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:02:07,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:02:07,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-11-24 00:02:07,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:07,405 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:02:07,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:02:07,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2115533845, now seen corresponding path program 1 times
[2024-11-24 00:02:07,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:02:07,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250790493]
[2024-11-24 00:02:07,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:02:07,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:07,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:02:07,408 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:02:07,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-11-24 00:02:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:02:07,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-24 00:02:07,842 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:02:07,852 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
[2024-11-24 00:02:07,875 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 19 treesize of output 1
[2024-11-24 00:02:07,914 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 23 treesize of output 11
[2024-11-24 00:02:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:07,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:02:07,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:02:07,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250790493]
[2024-11-24 00:02:07,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250790493] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:02:07,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:02:07,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:02:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812223104]
[2024-11-24 00:02:07,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:02:07,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:02:07,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:02:07,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:02:07,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:02:07,935 INFO L87 Difference]: Start difference. First operand 3263 states and 4293 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:14,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:02:14,867 INFO L93 Difference]: Finished difference Result 3262 states and 4291 transitions.
[2024-11-24 00:02:14,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-24 00:02:14,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 69
[2024-11-24 00:02:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:02:14,871 INFO L225 Difference]: With dead ends: 3262
[2024-11-24 00:02:14,871 INFO L226 Difference]: Without dead ends: 3262
[2024-11-24 00:02:14,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:02:14,872 INFO L435 NwaCegarLoop]: 1984 mSDtfsCounter, 2 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5347 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2024-11-24 00:02:14,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5347 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2024-11-24 00:02:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states.
[2024-11-24 00:02:14,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3262.
[2024-11-24 00:02:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 2490 states have (on average 1.7016064257028112) internal successors, (4237), 3235 states have internal predecessors, (4237), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-24 00:02:14,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4291 transitions.
[2024-11-24 00:02:14,909 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4291 transitions. Word has length 69
[2024-11-24 00:02:14,910 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:02:14,910 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 4291 transitions.
[2024-11-24 00:02:14,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4291 transitions.
[2024-11-24 00:02:14,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-11-24 00:02:14,910 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:02:14,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:02:14,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2024-11-24 00:02:15,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:15,111 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:02:15,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:02:15,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2115533846, now seen corresponding path program 1 times
[2024-11-24 00:02:15,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:02:15,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [740319239]
[2024-11-24 00:02:15,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:02:15,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:15,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:02:15,117 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:02:15,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-24 00:02:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:02:15,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-24 00:02:15,554 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:02:15,568 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
[2024-11-24 00:02:15,603 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 19 treesize of output 1
[2024-11-24 00:02:15,616 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 13 treesize of output 9
[2024-11-24 00:02:15,673 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 21 treesize of output 9
[2024-11-24 00:02:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:15,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:02:15,700 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:02:15,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740319239]
[2024-11-24 00:02:15,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740319239] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:02:15,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:02:15,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:02:15,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396827622]
[2024-11-24 00:02:15,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:02:15,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:02:15,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:02:15,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:02:15,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:02:15,701 INFO L87 Difference]: Start difference. First operand 3262 states and 4291 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:24,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:02:24,621 INFO L93 Difference]: Finished difference Result 3261 states and 4289 transitions.
[2024-11-24 00:02:24,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-24 00:02:24,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 69
[2024-11-24 00:02:24,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:02:24,626 INFO L225 Difference]: With dead ends: 3261
[2024-11-24 00:02:24,626 INFO L226 Difference]: Without dead ends: 3261
[2024-11-24 00:02:24,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:02:24,627 INFO L435 NwaCegarLoop]: 1984 mSDtfsCounter, 1 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5292 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2024-11-24 00:02:24,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5292 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time]
[2024-11-24 00:02:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states.
[2024-11-24 00:02:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 3261.
[2024-11-24 00:02:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 2488 states have (on average 1.7021704180064308) internal successors, (4235), 3234 states have internal predecessors, (4235), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-24 00:02:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 4289 transitions.
[2024-11-24 00:02:24,683 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 4289 transitions. Word has length 69
[2024-11-24 00:02:24,683 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:02:24,683 INFO L471 AbstractCegarLoop]: Abstraction has 3261 states and 4289 transitions.
[2024-11-24 00:02:24,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 4289 transitions.
[2024-11-24 00:02:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-24 00:02:24,684 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:02:24,684 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:02:24,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2024-11-24 00:02:24,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:24,885 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:02:24,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:02:24,886 INFO L85 PathProgramCache]: Analyzing trace with hash -357186148, now seen corresponding path program 1 times
[2024-11-24 00:02:24,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:02:24,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242904281]
[2024-11-24 00:02:24,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:02:24,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:24,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:02:24,889 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:02:24,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-11-24 00:02:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:02:25,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-24 00:02:25,333 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:02:25,342 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 19 treesize of output 1
[2024-11-24 00:02:25,473 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 23 treesize of output 11
[2024-11-24 00:02:25,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:25,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:02:25,500 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:02:25,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242904281]
[2024-11-24 00:02:25,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242904281] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:02:25,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:02:25,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-24 00:02:25,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573045947]
[2024-11-24 00:02:25,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:02:25,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-24 00:02:25,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:02:25,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-24 00:02:25,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-24 00:02:25,503 INFO L87 Difference]: Start difference. First operand 3261 states and 4289 transitions. Second operand has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 00:02:33,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:02:33,941 INFO L93 Difference]: Finished difference Result 3279 states and 4321 transitions.
[2024-11-24 00:02:33,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 00:02:33,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77
[2024-11-24 00:02:33,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:02:33,948 INFO L225 Difference]: With dead ends: 3279
[2024-11-24 00:02:33,949 INFO L226 Difference]: Without dead ends: 3279
[2024-11-24 00:02:33,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:02:33,950 INFO L435 NwaCegarLoop]: 1948 mSDtfsCounter, 27 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 7418 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:02:33,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 7418 Invalid, 2525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time]
[2024-11-24 00:02:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states.
[2024-11-24 00:02:33,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3270.
[2024-11-24 00:02:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 2496 states have (on average 1.701121794871795) internal successors, (4246), 3241 states have internal predecessors, (4246), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (38), 26 states have call predecessors, (38), 27 states have call successors, (38)
[2024-11-24 00:02:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 4311 transitions.
[2024-11-24 00:02:33,999 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 4311 transitions. Word has length 77
[2024-11-24 00:02:33,999 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:02:34,000 INFO L471 AbstractCegarLoop]: Abstraction has 3270 states and 4311 transitions.
[2024-11-24 00:02:34,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 00:02:34,000 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 4311 transitions.
[2024-11-24 00:02:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-24 00:02:34,001 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:02:34,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:02:34,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2024-11-24 00:02:34,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:34,202 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:02:34,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:02:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash -357186147, now seen corresponding path program 1 times
[2024-11-24 00:02:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:02:34,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704635772]
[2024-11-24 00:02:34,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:02:34,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:34,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:02:34,208 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:02:34,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-11-24 00:02:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:02:34,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:02:34,663 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:02:34,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:34,689 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:02:34,689 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:02:34,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704635772]
[2024-11-24 00:02:34,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704635772] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:02:34,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:02:34,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:02:34,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967982137]
[2024-11-24 00:02:34,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:02:34,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:02:34,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:02:34,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:02:34,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:02:34,691 INFO L87 Difference]: Start difference. First operand 3270 states and 4311 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 00:02:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:02:34,801 INFO L93 Difference]: Finished difference Result 3264 states and 4295 transitions.
[2024-11-24 00:02:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:02:34,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77
[2024-11-24 00:02:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:02:34,812 INFO L225 Difference]: With dead ends: 3264
[2024-11-24 00:02:34,812 INFO L226 Difference]: Without dead ends: 3264
[2024-11-24 00:02:34,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:02:34,813 INFO L435 NwaCegarLoop]: 1983 mSDtfsCounter, 0 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5941 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:02:34,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5941 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:02:34,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states.
[2024-11-24 00:02:34,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 3264.
[2024-11-24 00:02:34,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3264 states, 2490 states have (on average 1.702008032128514) internal successors, (4238), 3237 states have internal predecessors, (4238), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-11-24 00:02:34,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 4295 transitions.
[2024-11-24 00:02:34,872 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 4295 transitions. Word has length 77
[2024-11-24 00:02:34,872 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:02:34,872 INFO L471 AbstractCegarLoop]: Abstraction has 3264 states and 4295 transitions.
[2024-11-24 00:02:34,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 00:02:34,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 4295 transitions.
[2024-11-24 00:02:34,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-24 00:02:34,873 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:02:34,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:02:34,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0
[2024-11-24 00:02:35,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:35,074 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:02:35,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:02:35,075 INFO L85 PathProgramCache]: Analyzing trace with hash 864656457, now seen corresponding path program 1 times
[2024-11-24 00:02:35,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:02:35,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81416920]
[2024-11-24 00:02:35,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:02:35,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:35,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:02:35,078 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:02:35,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-11-24 00:02:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:02:35,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 00:02:35,563 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:02:35,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:35,598 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:02:35,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:35,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:02:35,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81416920]
[2024-11-24 00:02:35,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81416920] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:02:35,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:02:35,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-11-24 00:02:35,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802189330]
[2024-11-24 00:02:35,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:02:35,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 00:02:35,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:02:35,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 00:02:35,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-24 00:02:35,701 INFO L87 Difference]: Start difference. First operand 3264 states and 4295 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-24 00:02:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:02:36,015 INFO L93 Difference]: Finished difference Result 3276 states and 4314 transitions.
[2024-11-24 00:02:36,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-24 00:02:36,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78
[2024-11-24 00:02:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:02:36,026 INFO L225 Difference]: With dead ends: 3276
[2024-11-24 00:02:36,026 INFO L226 Difference]: Without dead ends: 3276
[2024-11-24 00:02:36,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110
[2024-11-24 00:02:36,027 INFO L435 NwaCegarLoop]: 1982 mSDtfsCounter, 5 mSDsluCounter, 7907 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9889 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:02:36,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9889 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 00:02:36,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states.
[2024-11-24 00:02:36,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3274.
[2024-11-24 00:02:36,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2499 states have (on average 1.7018807523009203) internal successors, (4253), 3246 states have internal predecessors, (4253), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-11-24 00:02:36,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4310 transitions.
[2024-11-24 00:02:36,089 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4310 transitions. Word has length 78
[2024-11-24 00:02:36,089 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:02:36,090 INFO L471 AbstractCegarLoop]: Abstraction has 3274 states and 4310 transitions.
[2024-11-24 00:02:36,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-24 00:02:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4310 transitions.
[2024-11-24 00:02:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-24 00:02:36,091 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:02:36,091 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:02:36,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0
[2024-11-24 00:02:36,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:36,292 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:02:36,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:02:36,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1816955100, now seen corresponding path program 2 times
[2024-11-24 00:02:36,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:02:36,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1279278704]
[2024-11-24 00:02:36,293 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:02:36,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:02:36,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:02:36,295 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:02:36,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2024-11-24 00:02:53,659 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:02:53,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:02:53,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-24 00:02:53,681 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:02:53,841 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:02:53,841 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
[2024-11-24 00:02:53,870 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 19 treesize of output 1
[2024-11-24 00:02:54,208 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:02:54,208 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 44 treesize of output 43
[2024-11-24 00:02:54,292 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 33 treesize of output 15
[2024-11-24 00:02:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:02:54,324 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:02:54,485 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size
[2024-11-24 00:02:54,485 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 25 treesize of output 24
[2024-11-24 00:02:54,501 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1726 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem37#1.base| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_1726) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false
[2024-11-24 00:02:54,505 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:02:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279278704]
[2024-11-24 00:02:54,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279278704] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:02:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [152977822]
[2024-11-24 00:02:54,506 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:02:54,506 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:02:54,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:02:54,519 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:02:54,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process
[2024-11-24 00:02:56,783 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:02:56,783 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:02:56,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-24 00:02:56,833 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:02:57,146 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:57,146 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:02:57,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:57,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [152977822] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:02:57,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:02:57,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24
[2024-11-24 00:02:57,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999460012]
[2024-11-24 00:02:57,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:02:57,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-24 00:02:57,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:02:57,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-24 00:02:57,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650
[2024-11-24 00:02:57,637 INFO L87 Difference]: Start difference. First operand 3274 states and 4310 transitions. Second operand has 24 states, 23 states have (on average 6.304347826086956) internal successors, (145), 23 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-24 00:03:25,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:25,228 INFO L93 Difference]: Finished difference Result 3290 states and 4336 transitions.
[2024-11-24 00:03:25,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states.
[2024-11-24 00:03:25,228 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.304347826086956) internal successors, (145), 23 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 81
[2024-11-24 00:03:25,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:25,247 INFO L225 Difference]: With dead ends: 3290
[2024-11-24 00:03:25,247 INFO L226 Difference]: Without dead ends: 3286
[2024-11-24 00:03:25,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756
[2024-11-24 00:03:25,249 INFO L435 NwaCegarLoop]: 1205 mSDtfsCounter, 1752 mSDsluCounter, 13927 mSDsCounter, 0 mSdLazyCounter, 11173 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 15132 SdHoareTripleChecker+Invalid, 11219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:25,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 15132 Invalid, 11219 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [46 Valid, 11173 Invalid, 0 Unknown, 0 Unchecked, 25.9s Time]
[2024-11-24 00:03:25,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states.
[2024-11-24 00:03:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3282.
[2024-11-24 00:03:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 2508 states have (on average 1.6997607655502391) internal successors, (4263), 3254 states have internal predecessors, (4263), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-11-24 00:03:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 4320 transitions.
[2024-11-24 00:03:25,347 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 4320 transitions. Word has length 81
[2024-11-24 00:03:25,347 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:25,347 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 4320 transitions.
[2024-11-24 00:03:25,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.304347826086956) internal successors, (145), 23 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-24 00:03:25,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 4320 transitions.
[2024-11-24 00:03:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2024-11-24 00:03:25,352 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:25,352 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:25,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0
[2024-11-24 00:03:25,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0
[2024-11-24 00:03:25,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt
[2024-11-24 00:03:25,753 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:03:25,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:25,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1913986627, now seen corresponding path program 1 times
[2024-11-24 00:03:25,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:03:25,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348785476]
[2024-11-24 00:03:25,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:25,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:25,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:03:25,757 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:03:25,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process
[2024-11-24 00:03:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:26,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-24 00:03:26,287 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:03:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:26,553 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:03:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:27,423 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:03:27,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348785476]
[2024-11-24 00:03:27,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348785476] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:03:27,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:03:27,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26
[2024-11-24 00:03:27,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727320109]
[2024-11-24 00:03:27,424 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:03:27,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-11-24 00:03:27,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:03:27,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-11-24 00:03:27,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650
[2024-11-24 00:03:27,426 INFO L87 Difference]: Start difference. First operand 3282 states and 4320 transitions. Second operand has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-24 00:03:30,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:30,162 INFO L93 Difference]: Finished difference Result 3306 states and 4359 transitions.
[2024-11-24 00:03:30,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2024-11-24 00:03:30,163 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87
[2024-11-24 00:03:30,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:30,171 INFO L225 Difference]: With dead ends: 3306
[2024-11-24 00:03:30,171 INFO L226 Difference]: Without dead ends: 3300
[2024-11-24 00:03:30,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162
[2024-11-24 00:03:30,172 INFO L435 NwaCegarLoop]: 1982 mSDtfsCounter, 25 mSDsluCounter, 21758 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 23740 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:30,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 23740 Invalid, 678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-24 00:03:30,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states.
[2024-11-24 00:03:30,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300.
[2024-11-24 00:03:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2526 states have (on average 1.6967537608867775) internal successors, (4286), 3272 states have internal predecessors, (4286), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-11-24 00:03:30,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4343 transitions.
[2024-11-24 00:03:30,216 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4343 transitions. Word has length 87
[2024-11-24 00:03:30,216 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:30,216 INFO L471 AbstractCegarLoop]: Abstraction has 3300 states and 4343 transitions.
[2024-11-24 00:03:30,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-24 00:03:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4343 transitions.
[2024-11-24 00:03:30,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2024-11-24 00:03:30,218 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:30,218 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:30,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0
[2024-11-24 00:03:30,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:30,419 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:03:30,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1348148093, now seen corresponding path program 2 times
[2024-11-24 00:03:30,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:03:30,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88314884]
[2024-11-24 00:03:30,420 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:03:30,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:30,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:03:30,423 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:03:30,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process
[2024-11-24 00:04:40,210 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:04:40,210 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:04:40,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 64 conjuncts are in the unsatisfiable core
[2024-11-24 00:04:40,250 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:04:40,469 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:04:40,470 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
[2024-11-24 00:04:40,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5
[2024-11-24 00:04:40,529 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 19 treesize of output 1
[2024-11-24 00:04:40,548 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 13 treesize of output 9
[2024-11-24 00:04:40,735 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 22 treesize of output 10
[2024-11-24 00:04:40,744 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 9 treesize of output 3
[2024-11-24 00:04:41,484 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:04:41,485 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 62 treesize of output 57
[2024-11-24 00:04:41,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:04:41,573 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 31 treesize of output 13
[2024-11-24 00:04:41,584 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 9 treesize of output 3
[2024-11-24 00:04:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2024-11-24 00:04:41,634 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:04:42,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:04:42,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88314884]
[2024-11-24 00:04:42,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88314884] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:04:42,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1851500036]
[2024-11-24 00:04:42,581 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:04:42,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:04:42,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:04:42,585 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:04:42,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process
[2024-11-24 00:04:45,005 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:04:45,005 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:04:45,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-24 00:04:45,056 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:04:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:04:46,428 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:04:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:04:49,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1851500036] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:04:49,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:04:49,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58
[2024-11-24 00:04:49,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504293997]
[2024-11-24 00:04:49,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:04:49,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states
[2024-11-24 00:04:49,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:04:49,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants.
[2024-11-24 00:04:49,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=700, Invalid=2951, Unknown=9, NotChecked=0, Total=3660
[2024-11-24 00:04:49,847 INFO L87 Difference]: Start difference. First operand 3300 states and 4343 transitions. Second operand has 58 states, 57 states have (on average 3.175438596491228) internal successors, (181), 58 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-24 00:06:18,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:06:18,886 INFO L93 Difference]: Finished difference Result 3396 states and 4494 transitions.
[2024-11-24 00:06:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states.
[2024-11-24 00:06:18,887 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.175438596491228) internal successors, (181), 58 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 99
[2024-11-24 00:06:18,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:06:18,893 INFO L225 Difference]: With dead ends: 3396
[2024-11-24 00:06:18,893 INFO L226 Difference]: Without dead ends: 3384
[2024-11-24 00:06:18,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5829 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=5258, Invalid=18909, Unknown=13, NotChecked=0, Total=24180
[2024-11-24 00:06:18,897 INFO L435 NwaCegarLoop]: 1231 mSDtfsCounter, 1758 mSDsluCounter, 35814 mSDsCounter, 0 mSdLazyCounter, 29097 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 37045 SdHoareTripleChecker+Invalid, 29209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 29097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.8s IncrementalHoareTripleChecker+Time
[2024-11-24 00:06:18,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 37045 Invalid, 29209 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [112 Valid, 29097 Invalid, 0 Unknown, 0 Unchecked, 69.8s Time]
[2024-11-24 00:06:18,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states.
[2024-11-24 00:06:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3382.
[2024-11-24 00:06:18,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 2608 states have (on average 1.679064417177914) internal successors, (4379), 3353 states have internal predecessors, (4379), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-11-24 00:06:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 4436 transitions.
[2024-11-24 00:06:18,937 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 4436 transitions. Word has length 99
[2024-11-24 00:06:18,937 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:06:18,937 INFO L471 AbstractCegarLoop]: Abstraction has 3382 states and 4436 transitions.
[2024-11-24 00:06:18,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.175438596491228) internal successors, (181), 58 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-24 00:06:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 4436 transitions.
[2024-11-24 00:06:18,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-24 00:06:18,939 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:06:18,939 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:06:18,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0
[2024-11-24 00:06:19,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0
[2024-11-24 00:06:19,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:06:19,340 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:06:19,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:19,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1358578009, now seen corresponding path program 1 times
[2024-11-24 00:06:19,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:06:19,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287053796]
[2024-11-24 00:06:19,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:19,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:06:19,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:06:19,343 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:06:19,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process
[2024-11-24 00:06:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:20,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 58 conjuncts are in the unsatisfiable core
[2024-11-24 00:06:20,159 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:06:20,163 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
[2024-11-24 00:06:20,356 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:06:20,356 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
[2024-11-24 00:06:20,385 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 19 treesize of output 1
[2024-11-24 00:06:20,835 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:06:20,836 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 31 treesize of output 32
[2024-11-24 00:06:20,910 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:06:20,910 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 44 treesize of output 43
[2024-11-24 00:06:20,965 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 33 treesize of output 15
[2024-11-24 00:06:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-11-24 00:06:20,994 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:06:21,086 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size
[2024-11-24 00:06:21,087 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 25 treesize of output 24
[2024-11-24 00:06:21,192 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3012 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_3012) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false
[2024-11-24 00:06:21,780 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3012 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3058 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_3058)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_3012) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false
[2024-11-24 00:06:21,783 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:06:21,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287053796]
[2024-11-24 00:06:21,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287053796] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:06:21,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [322305593]
[2024-11-24 00:06:21,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:21,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:06:21,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:06:21,788 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:06:21,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process
[2024-11-24 00:06:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:26,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 62 conjuncts are in the unsatisfiable core
[2024-11-24 00:06:26,216 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:06:26,222 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
[2024-11-24 00:06:26,417 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2024-11-24 00:06:26,417 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 19 treesize of output 27
[2024-11-24 00:06:26,499 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 19 treesize of output 1
[2024-11-24 00:06:26,691 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 24 treesize of output 12
[2024-11-24 00:06:28,158 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:06:28,159 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 44 treesize of output 43
[2024-11-24 00:06:28,388 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:06:28,388 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 44 treesize of output 43
[2024-11-24 00:06:28,423 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 33 treesize of output 15
[2024-11-24 00:06:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-11-24 00:06:28,494 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:06:28,516 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3481 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_3481) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false
[2024-11-24 00:06:28,531 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3481 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3481) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false
[2024-11-24 00:06:29,134 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3527 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3481 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_3527))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3481)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-11-24 00:06:29,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [322305593] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:06:29,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:06:29,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17
[2024-11-24 00:06:29,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539432521]
[2024-11-24 00:06:29,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:06:29,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-24 00:06:29,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:06:29,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-24 00:06:29,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=311, Unknown=12, NotChecked=200, Total=600
[2024-11-24 00:06:29,140 INFO L87 Difference]: Start difference. First operand 3382 states and 4436 transitions. Second operand has 18 states, 15 states have (on average 6.533333333333333) internal successors, (98), 18 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 00:06:42,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:06:42,179 INFO L93 Difference]: Finished difference Result 3383 states and 4438 transitions.
[2024-11-24 00:06:42,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-24 00:06:42,180 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 6.533333333333333) internal successors, (98), 18 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 124
[2024-11-24 00:06:42,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:06:42,189 INFO L225 Difference]: With dead ends: 3383
[2024-11-24 00:06:42,189 INFO L226 Difference]: Without dead ends: 3383
[2024-11-24 00:06:42,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=342, Unknown=12, NotChecked=210, Total=650
[2024-11-24 00:06:42,190 INFO L435 NwaCegarLoop]: 1207 mSDtfsCounter, 1682 mSDsluCounter, 5743 mSDsCounter, 0 mSdLazyCounter, 5313 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 6950 SdHoareTripleChecker+Invalid, 5347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 5313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time
[2024-11-24 00:06:42,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 6950 Invalid, 5347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 5313 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time]
[2024-11-24 00:06:42,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states.
[2024-11-24 00:06:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3381.
[2024-11-24 00:06:42,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 2608 states have (on average 1.67829754601227) internal successors, (4377), 3352 states have internal predecessors, (4377), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-11-24 00:06:42,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4434 transitions.
[2024-11-24 00:06:42,243 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4434 transitions. Word has length 124
[2024-11-24 00:06:42,243 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:06:42,244 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4434 transitions.
[2024-11-24 00:06:42,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 6.533333333333333) internal successors, (98), 18 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 00:06:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4434 transitions.
[2024-11-24 00:06:42,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-24 00:06:42,245 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:06:42,246 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:06:42,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0
[2024-11-24 00:06:42,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0
[2024-11-24 00:06:42,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:06:42,647 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr87REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:06:42,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:06:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1358578008, now seen corresponding path program 1 times
[2024-11-24 00:06:42,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:06:42,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276519651]
[2024-11-24 00:06:42,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:42,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:06:42,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:06:42,652 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:06:42,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process
[2024-11-24 00:06:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:43,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 110 conjuncts are in the unsatisfiable core
[2024-11-24 00:06:43,520 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:06:43,733 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:06:43,734 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
[2024-11-24 00:06:43,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5
[2024-11-24 00:06:43,782 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 19 treesize of output 1
[2024-11-24 00:06:43,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2024-11-24 00:06:43,932 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 22 treesize of output 10
[2024-11-24 00:06:43,939 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 9 treesize of output 3
[2024-11-24 00:06:45,108 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:06:45,108 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 62 treesize of output 57
[2024-11-24 00:06:45,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:06:45,284 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:06:45,284 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 62 treesize of output 57
[2024-11-24 00:06:45,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:06:45,335 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 31 treesize of output 13
[2024-11-24 00:06:45,344 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 9 treesize of output 3
[2024-11-24 00:06:45,398 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-11-24 00:06:45,398 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:06:45,624 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3995 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_3995) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1)))))) is different from false
[2024-11-24 00:06:45,675 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3995 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_3995) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false
[2024-11-24 00:06:47,565 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4087 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4088 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_4087) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_4088) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3995 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4087 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4088 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_4088))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_4087) .cse2 v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_3995) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false
[2024-11-24 00:06:47,582 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:06:47,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276519651]
[2024-11-24 00:06:47,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276519651] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:06:47,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [883340806]
[2024-11-24 00:06:47,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:06:47,583 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:06:47,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:06:47,585 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:06:47,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process
[2024-11-24 00:06:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:06:52,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 74 conjuncts are in the unsatisfiable core
[2024-11-24 00:06:52,572 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:06:52,577 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
[2024-11-24 00:06:52,584 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
[2024-11-24 00:06:53,257 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2024-11-24 00:06:53,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 18
[2024-11-24 00:06:53,301 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:06:53,301 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
[2024-11-24 00:06:53,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-24 00:06:53,415 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
[2024-11-24 00:06:53,575 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 17 treesize of output 9
[2024-11-24 00:06:53,672 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
[2024-11-24 00:06:54,691 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 00:06:54,692 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
[2024-11-24 00:06:55,061 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34
[2024-11-24 00:06:55,076 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 22
[2024-11-24 00:06:55,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-24 00:06:55,401 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 39 treesize of output 22
[2024-11-24 00:06:55,420 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-24 00:06:55,420 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
[2024-11-24 00:06:55,561 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-11-24 00:06:55,561 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:06:56,149 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 239 treesize of output 167
[2024-11-24 00:07:34,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [883340806] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:07:34,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:07:34,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19
[2024-11-24 00:07:34,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213983442]
[2024-11-24 00:07:34,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:07:34,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-24 00:07:34,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:07:34,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-24 00:07:34,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=518, Unknown=13, NotChecked=144, Total=756
[2024-11-24 00:07:34,894 INFO L87 Difference]: Start difference. First operand 3381 states and 4434 transitions. Second operand has 20 states, 17 states have (on average 9.117647058823529) internal successors, (155), 20 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 00:10:13,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:13,266 INFO L93 Difference]: Finished difference Result 5040 states and 6639 transitions.
[2024-11-24 00:10:13,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-24 00:10:13,267 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 9.117647058823529) internal successors, (155), 20 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 124
[2024-11-24 00:10:13,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:13,282 INFO L225 Difference]: With dead ends: 5040
[2024-11-24 00:10:13,282 INFO L226 Difference]: Without dead ends: 5040
[2024-11-24 00:10:13,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 37.0s TimeCoverageRelationStatistics Valid=163, Invalid=892, Unknown=13, NotChecked=192, Total=1260
[2024-11-24 00:10:13,286 INFO L435 NwaCegarLoop]: 915 mSDtfsCounter, 4415 mSDsluCounter, 9718 mSDsCounter, 0 mSdLazyCounter, 16759 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4431 SdHoareTripleChecker+Valid, 10633 SdHoareTripleChecker+Invalid, 16794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 16759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 154.8s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:13,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4431 Valid, 10633 Invalid, 16794 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [35 Valid, 16759 Invalid, 0 Unknown, 0 Unchecked, 154.8s Time]
[2024-11-24 00:10:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states.
[2024-11-24 00:10:13,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 3380.
[2024-11-24 00:10:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 2608 states have (on average 1.6775306748466257) internal successors, (4375), 3351 states have internal predecessors, (4375), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-11-24 00:10:13,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4432 transitions.
[2024-11-24 00:10:13,339 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 4432 transitions. Word has length 124
[2024-11-24 00:10:13,339 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:13,339 INFO L471 AbstractCegarLoop]: Abstraction has 3380 states and 4432 transitions.
[2024-11-24 00:10:13,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 9.117647058823529) internal successors, (155), 20 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 00:10:13,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 4432 transitions.
[2024-11-24 00:10:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-24 00:10:13,341 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:13,341 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:13,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0
[2024-11-24 00:10:13,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0
[2024-11-24 00:10:13,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:13,742 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr90REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:10:13,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:13,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1920279389, now seen corresponding path program 1 times
[2024-11-24 00:10:13,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:10:13,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399747534]
[2024-11-24 00:10:13,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:10:13,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:13,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:13,745 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:13,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process
[2024-11-24 00:10:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:10:14,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 60 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:14,489 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:14,508 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
[2024-11-24 00:10:15,488 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:10:15,488 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
[2024-11-24 00:10:15,568 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 19 treesize of output 1
[2024-11-24 00:10:17,271 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:10:17,271 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 31 treesize of output 32
[2024-11-24 00:10:17,568 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:10:17,568 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 44 treesize of output 43
[2024-11-24 00:10:18,096 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:10:18,096 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 44 treesize of output 43
[2024-11-24 00:10:18,177 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 33 treesize of output 15
[2024-11-24 00:10:18,321 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-11-24 00:10:18,322 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:18,537 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4999 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_4999) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false
[2024-11-24 00:10:18,576 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4999 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_4999) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false
[2024-11-24 00:10:18,678 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size
[2024-11-24 00:10:18,678 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 37 treesize of output 36
[2024-11-24 00:10:18,715 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4999 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4998 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4998))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4999)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem39#1.base|)) is different from false
[2024-11-24 00:10:18,754 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4999 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4998 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_4998))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4999)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false
[2024-11-24 00:10:19,941 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4999 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4998 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5045 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5045)) (.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_4998))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4999)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3)))) is different from false
[2024-11-24 00:10:19,950 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:10:19,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399747534]
[2024-11-24 00:10:19,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399747534] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:19,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1611723564]
[2024-11-24 00:10:19,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:10:19,950 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:10:19,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:10:19,952 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:10:19,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process
[2024-11-24 00:10:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:10:41,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 64 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:41,123 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:41,147 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
[2024-11-24 00:10:42,381 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2024-11-24 00:10:42,381 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 19 treesize of output 27
[2024-11-24 00:10:42,639 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 19 treesize of output 1
[2024-11-24 00:10:43,384 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 24 treesize of output 12
[2024-11-24 00:10:47,838 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:10:47,838 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 44 treesize of output 43
[2024-11-24 00:10:48,592 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:10:48,592 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 44 treesize of output 43
[2024-11-24 00:10:49,111 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:10:49,111 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 44 treesize of output 43
[2024-11-24 00:10:49,230 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 33 treesize of output 15
[2024-11-24 00:10:49,528 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-11-24 00:10:49,528 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:50,012 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5484) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false
[2024-11-24 00:10:50,068 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5483 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5483))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5484)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-11-24 00:10:50,109 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5483 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5483))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5484)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-11-24 00:10:51,321 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5483 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5530 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5530))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5483)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5484)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-11-24 00:10:51,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1611723564] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:51,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:10:51,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19
[2024-11-24 00:10:51,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914477649]
[2024-11-24 00:10:51,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:51,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-24 00:10:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:10:51,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-24 00:10:51,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=383, Unknown=17, NotChecked=432, Total=930
[2024-11-24 00:10:51,333 INFO L87 Difference]: Start difference. First operand 3380 states and 4432 transitions. Second operand has 20 states, 17 states have (on average 6.117647058823529) internal successors, (104), 20 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 00:12:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:12:00,106 INFO L93 Difference]: Finished difference Result 3381 states and 4434 transitions.
[2024-11-24 00:12:00,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 00:12:00,106 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 6.117647058823529) internal successors, (104), 20 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 127
[2024-11-24 00:12:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:12:00,114 INFO L225 Difference]: With dead ends: 3381
[2024-11-24 00:12:00,114 INFO L226 Difference]: Without dead ends: 3381
[2024-11-24 00:12:00,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=107, Invalid=418, Unknown=17, NotChecked=450, Total=992
[2024-11-24 00:12:00,115 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 1681 mSDsluCounter, 8934 mSDsCounter, 0 mSdLazyCounter, 8012 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 10140 SdHoareTripleChecker+Invalid, 8046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 8012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.3s IncrementalHoareTripleChecker+Time
[2024-11-24 00:12:00,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 10140 Invalid, 8046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 8012 Invalid, 0 Unknown, 0 Unchecked, 68.3s Time]
[2024-11-24 00:12:00,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states.
[2024-11-24 00:12:00,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3379.
[2024-11-24 00:12:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3379 states, 2608 states have (on average 1.6767638036809815) internal successors, (4373), 3350 states have internal predecessors, (4373), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-11-24 00:12:00,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3379 states to 3379 states and 4430 transitions.
[2024-11-24 00:12:00,159 INFO L78 Accepts]: Start accepts. Automaton has 3379 states and 4430 transitions. Word has length 127
[2024-11-24 00:12:00,159 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:12:00,159 INFO L471 AbstractCegarLoop]: Abstraction has 3379 states and 4430 transitions.
[2024-11-24 00:12:00,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 6.117647058823529) internal successors, (104), 20 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 00:12:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3379 states and 4430 transitions.
[2024-11-24 00:12:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-24 00:12:00,160 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:12:00,160 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:12:00,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0
[2024-11-24 00:12:00,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0
[2024-11-24 00:12:00,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:12:00,562 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr91REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-11-24 00:12:00,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:12:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1920279388, now seen corresponding path program 1 times
[2024-11-24 00:12:00,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:12:00,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573730908]
[2024-11-24 00:12:00,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:12:00,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:12:00,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:12:00,565 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:12:00,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process
[2024-11-24 00:12:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:12:01,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 113 conjuncts are in the unsatisfiable core
[2024-11-24 00:12:01,344 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:12:02,294 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
[2024-11-24 00:12:02,380 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:12:02,380 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
[2024-11-24 00:12:02,511 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 13 treesize of output 9
[2024-11-24 00:12:02,543 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 19 treesize of output 1
[2024-11-24 00:12:03,050 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 22 treesize of output 10
[2024-11-24 00:12:03,069 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 9 treesize of output 3
[2024-11-24 00:12:06,814 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:12:06,814 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 62 treesize of output 57
[2024-11-24 00:12:06,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:12:07,342 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:12:07,343 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 62 treesize of output 57
[2024-11-24 00:12:07,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:12:07,816 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:12:07,816 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 62 treesize of output 57
[2024-11-24 00:12:07,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:12:07,968 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 31 treesize of output 13
[2024-11-24 00:12:08,014 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 9 treesize of output 3
[2024-11-24 00:12:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-11-24 00:12:08,189 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:12:08,729 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-11-24 00:12:08,806 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv8 32)) (bvadd .cse2 (_ bv12 32)))))))) is different from false
[2024-11-24 00:12:08,932 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6014))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6013) .cse0 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6013) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6014) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false
[2024-11-24 00:12:09,023 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_6014))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_6013) .cse1 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_6013) (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_6014) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false
[2024-11-24 00:12:12,947 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6107 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6108))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6107) .cse1 v_ArrVal_6013) (select (select (store .cse2 .cse1 v_ArrVal_6014) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6016))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6107 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6108))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6014))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6107) .cse4 v_ArrVal_6013) .cse5 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false
[2024-11-24 00:12:12,967 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:12:12,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573730908]
[2024-11-24 00:12:12,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573730908] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:12:12,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [892501724]
[2024-11-24 00:12:12,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:12:12,968 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:12:12,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:12:12,969 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:12:12,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a424e47a-444b-4b8a-b474-04227de8f46c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process
[2024-11-24 00:12:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:12:37,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 115 conjuncts are in the unsatisfiable core
[2024-11-24 00:12:37,735 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:12:37,751 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
[2024-11-24 00:12:38,644 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
[2024-11-24 00:12:38,745 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 00:12:38,745 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
[2024-11-24 00:12:38,782 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 19 treesize of output 1
[2024-11-24 00:12:38,803 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 13 treesize of output 9
[2024-11-24 00:12:39,111 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 22 treesize of output 10
[2024-11-24 00:12:39,130 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 9 treesize of output 3
[2024-11-24 00:12:42,608 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:12:42,608 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 62 treesize of output 57
[2024-11-24 00:12:42,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:12:42,980 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:12:42,980 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 62 treesize of output 57
[2024-11-24 00:12:43,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:12:43,280 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-11-24 00:12:43,281 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 62 treesize of output 57
[2024-11-24 00:12:43,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13
[2024-11-24 00:12:43,428 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 31 treesize of output 13
[2024-11-24 00:12:43,462 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 9 treesize of output 3
[2024-11-24 00:12:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-11-24 00:12:43,479 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:12:43,665 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd (_ bv12 32) .cse1)))))) is different from false
[2024-11-24 00:12:43,734 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false
[2024-11-24 00:12:43,929 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6593))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6592) .cse0 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6592) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6593) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false
[2024-11-24 00:12:44,053 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6592) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6593) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6593))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6592) .cse3 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false
[2024-11-24 00:12:47,807 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6686 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6687 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6687))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6686) .cse1 v_ArrVal_6592) (select (select (store .cse2 .cse1 v_ArrVal_6593) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6595))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6686 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6687 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6687))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6593))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6686) .cse4 v_ArrVal_6592) .cse5 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false
[2024-11-24 00:12:47,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [892501724] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:12:47,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:12:47,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10
[2024-11-24 00:12:47,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316080500]
[2024-11-24 00:12:47,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:12:47,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-24 00:12:47,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:12:47,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-24 00:12:47,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=134, Unknown=10, NotChecked=310, Total=506
[2024-11-24 00:12:47,829 INFO L87 Difference]: Start difference. First operand 3379 states and 4430 transitions. Second operand has 11 states, 9 states have (on average 9.666666666666666) internal successors, (87), 11 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)