./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1 --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 beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:39:40,457 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:39:40,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-12-02 08:39:40,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:39:40,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:39:40,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:39:40,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:39:40,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:39:40,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:39:40,535 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 08:39:40,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:39:40,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:39:40,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:39:40,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 08:39:40,536 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 08:39:40,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:39:40,536 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 08:39:40,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:39:40,537 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 08:39:40,537 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:39:40,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:39:40,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:39:40,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:39:40,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 08:39:40,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 08:39:40,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:39:40,539 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:39:40,539 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:39:40,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:39:40,539 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_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1
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 -> beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d
[2024-12-02 08:39:40,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:39:40,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:39:40,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:39:40,773 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 08:39:40,774 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 08:39:40,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i
[2024-12-02 08:39:43,497 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data/d55035248/25096583f6c94fd29acd310a6485d7b7/FLAGa72bf0c7b
[2024-12-02 08:39:43,714 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 08:39:43,715 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i
[2024-12-02 08:39:43,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data/d55035248/25096583f6c94fd29acd310a6485d7b7/FLAGa72bf0c7b
[2024-12-02 08:39:44,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data/d55035248/25096583f6c94fd29acd310a6485d7b7
[2024-12-02 08:39:44,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:39:44,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:39:44,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:39:44,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:39:44,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:39:44,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:39:44" (1/1) ...
[2024-12-02 08:39:44,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c62671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:44, skipping insertion in model container
[2024-12-02 08:39:44,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:39:44" (1/1) ...
[2024-12-02 08:39:44,090 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:39:44,356 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 08:39:44,407 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:39:44,422 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)
[2024-12-02 08:39:44,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@26af419e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:44, skipping insertion in model container
[2024-12-02 08:39:44,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:39:44,423 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2024-12-02 08:39:44,424 INFO L158 Benchmark]: Toolchain (without parser) took 373.88ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 77.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 08:39:44,425 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:39:44,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.03ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 77.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 08:39:44,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 372.03ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 77.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 607]: 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_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1 --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 beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:39:46,207 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:39:46,299 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-12-02 08:39:46,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:39:46,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:39:46,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:39:46,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:39:46,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:39:46,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:39:46,331 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 08:39:46,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:39:46,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:39:46,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:39:46,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 08:39:46,332 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 08:39:46,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:39:46,332 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 08:39:46,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 08:39:46,332 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 08:39:46,333 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 08:39:46,334 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 08:39:46,334 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:39:46,334 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 08:39:46,334 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:39:46,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:39:46,334 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:39:46,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:39:46,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:39:46,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:39:46,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:39:46,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:39:46,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:39:46,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:39:46,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:39:46,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:39:46,336 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 08:39:46,336 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 08:39:46,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:39:46,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:39:46,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:39:46,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:39:46,336 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_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1
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 -> beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d
[2024-12-02 08:39:46,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:39:46,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:39:46,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:39:46,582 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 08:39:46,582 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 08:39:46,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i
[2024-12-02 08:39:49,327 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data/805d72fef/22f3179912554bbd84fb6974be9ffe36/FLAGdc6f49e18
[2024-12-02 08:39:49,560 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 08:39:49,561 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i
[2024-12-02 08:39:49,573 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data/805d72fef/22f3179912554bbd84fb6974be9ffe36/FLAGdc6f49e18
[2024-12-02 08:39:49,588 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/data/805d72fef/22f3179912554bbd84fb6974be9ffe36
[2024-12-02 08:39:49,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:39:49,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:39:49,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:39:49,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:39:49,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:39:49,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:39:49" (1/1) ...
[2024-12-02 08:39:49,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b2581f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:49, skipping insertion in model container
[2024-12-02 08:39:49,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:39:49" (1/1) ...
[2024-12-02 08:39:49,627 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:39:49,880 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 08:39:49,931 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:39:49,947 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2024-12-02 08:39:49,954 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:39:49,982 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 08:39:50,002 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:39:50,009 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 08:39:50,058 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:39:50,090 INFO L204 MainTranslator]: Completed translation
[2024-12-02 08:39:50,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50 WrapperNode
[2024-12-02 08:39:50,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:39:50,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 08:39:50,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 08:39:50,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 08:39:50,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,140 INFO L138 Inliner]: procedures = 165, calls = 71, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 123
[2024-12-02 08:39:50,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 08:39:50,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 08:39:50,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 08:39:50,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 08:39:50,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,154 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,174 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7].
[2024-12-02 08:39:50,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,186 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 08:39:50,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 08:39:50,198 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 08:39:50,198 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 08:39:50,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (1/1) ...
[2024-12-02 08:39:50,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:39:50,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:50,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 08:39:50,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 08:39:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-12-02 08:39:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-12-02 08:39:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD
[2024-12-02 08:39:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD
[2024-12-02 08:39:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc
[2024-12-02 08:39:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2024-12-02 08:39:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put
[2024-12-02 08:39:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-12-02 08:39:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 08:39:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 08:39:50,372 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 08:39:50,373 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 08:39:50,762 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live.
[2024-12-02 08:39:50,762 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 08:39:50,773 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 08:39:50,774 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 08:39:50,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:39:50 BoogieIcfgContainer
[2024-12-02 08:39:50,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 08:39:50,776 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 08:39:50,777 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 08:39:50,781 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 08:39:50,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:39:49" (1/3) ...
[2024-12-02 08:39:50,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca466e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:39:50, skipping insertion in model container
[2024-12-02 08:39:50,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:50" (2/3) ...
[2024-12-02 08:39:50,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca466e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:39:50, skipping insertion in model container
[2024-12-02 08:39:50,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:39:50" (3/3) ...
[2024-12-02 08:39:50,784 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-2.i
[2024-12-02 08:39:50,800 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 08:39:50,801 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test22_2-2.i that has 4 procedures, 90 locations, 1 initial locations, 1 loop locations, and 25 error locations.
[2024-12-02 08:39:50,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 08:39:50,852 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;@d35ce2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 08:39:50,852 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations.
[2024-12-02 08:39:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 57 states have (on average 1.5964912280701755) internal successors, (91), 83 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:39:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-12-02 08:39:50,862 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:50,862 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:50,863 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:50,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:50,868 INFO L85 PathProgramCache]: Analyzing trace with hash -459041073, now seen corresponding path program 1 times
[2024-12-02 08:39:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:50,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [972102044]
[2024-12-02 08:39:50,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:50,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:50,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:50,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:50,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 08:39:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:50,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:50,993 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:51,045 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
[2024-12-02 08:39:51,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:51,110 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:51,110 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:51,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972102044]
[2024-12-02 08:39:51,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972102044] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:51,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:51,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:39:51,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694849743]
[2024-12-02 08:39:51,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:51,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 08:39:51,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:51,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 08:39:51,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-02 08:39:51,139 INFO L87 Difference]: Start difference. First operand has 90 states, 57 states have (on average 1.5964912280701755) internal successors, (91), 83 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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)
[2024-12-02 08:39:51,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:51,542 INFO L93 Difference]: Finished difference Result 108 states and 122 transitions.
[2024-12-02 08:39:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 08:39:51,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 10
[2024-12-02 08:39:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:51,550 INFO L225 Difference]: With dead ends: 108
[2024-12-02 08:39:51,551 INFO L226 Difference]: Without dead ends: 106
[2024-12-02 08:39:51,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:39:51,554 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 23 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:51,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 334 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 08:39:51,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2024-12-02 08:39:51,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 93.
[2024-12-02 08:39:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 85 states have internal predecessors, (94), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:39:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions.
[2024-12-02 08:39:51,593 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 10
[2024-12-02 08:39:51,593 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:51,593 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions.
[2024-12-02 08:39:51,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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)
[2024-12-02 08:39:51,593 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions.
[2024-12-02 08:39:51,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-12-02 08:39:51,594 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:51,594 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:51,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 08:39:51,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:51,795 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:51,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:51,795 INFO L85 PathProgramCache]: Analyzing trace with hash -430411922, now seen corresponding path program 1 times
[2024-12-02 08:39:51,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:51,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2008317118]
[2024-12-02 08:39:51,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:51,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:51,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:51,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:51,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 08:39:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:51,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:51,863 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:51,923 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:51,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:51,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008317118]
[2024-12-02 08:39:51,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008317118] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:51,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:51,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:39:51,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26299179]
[2024-12-02 08:39:51,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:51,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:39:51,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:51,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:39:51,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:39:51,925 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-12-02 08:39:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:51,960 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions.
[2024-12-02 08:39:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 08:39:51,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 10
[2024-12-02 08:39:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:51,961 INFO L225 Difference]: With dead ends: 91
[2024-12-02 08:39:51,962 INFO L226 Difference]: Without dead ends: 91
[2024-12-02 08:39:51,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:39:51,963 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:51,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 378 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:39:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-12-02 08:39:51,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2024-12-02 08:39:51,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 59 states have (on average 1.5423728813559323) internal successors, (91), 83 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:39:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions.
[2024-12-02 08:39:51,970 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 10
[2024-12-02 08:39:51,970 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:51,970 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions.
[2024-12-02 08:39:51,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-12-02 08:39:51,970 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions.
[2024-12-02 08:39:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 08:39:51,971 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:51,971 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:51,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 08:39:52,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:52,172 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:52,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:52,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1345371264, now seen corresponding path program 1 times
[2024-12-02 08:39:52,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:52,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [96389896]
[2024-12-02 08:39:52,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:52,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:52,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:52,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:52,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 08:39:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:52,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:52,239 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:52,273 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
[2024-12-02 08:39:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:52,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:52,399 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:52,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96389896]
[2024-12-02 08:39:52,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96389896] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:52,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:52,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 08:39:52,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133643156]
[2024-12-02 08:39:52,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:52,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 08:39:52,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:52,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 08:39:52,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:39:52,401 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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)
[2024-12-02 08:39:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:52,734 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions.
[2024-12-02 08:39:52,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 08:39:52,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 11
[2024-12-02 08:39:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:52,735 INFO L225 Difference]: With dead ends: 90
[2024-12-02 08:39:52,736 INFO L226 Difference]: Without dead ends: 90
[2024-12-02 08:39:52,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-12-02 08:39:52,736 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 19 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:52,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 411 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 08:39:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2024-12-02 08:39:52,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2024-12-02 08:39:52,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 82 states have internal predecessors, (90), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:39:52,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions.
[2024-12-02 08:39:52,743 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 11
[2024-12-02 08:39:52,743 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:52,743 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions.
[2024-12-02 08:39:52,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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)
[2024-12-02 08:39:52,744 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions.
[2024-12-02 08:39:52,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-12-02 08:39:52,744 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:52,744 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:52,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 08:39:52,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:52,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:52,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:52,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1243137109, now seen corresponding path program 1 times
[2024-12-02 08:39:52,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:52,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317215780]
[2024-12-02 08:39:52,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:52,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:52,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:52,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:52,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 08:39:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:53,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:53,013 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:53,036 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:53,037 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:53,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317215780]
[2024-12-02 08:39:53,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317215780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:53,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:53,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:39:53,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839335006]
[2024-12-02 08:39:53,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:53,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:39:53,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:53,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:39:53,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:39:53,038 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-12-02 08:39:53,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:53,066 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions.
[2024-12-02 08:39:53,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 08:39:53,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 12
[2024-12-02 08:39:53,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:53,068 INFO L225 Difference]: With dead ends: 90
[2024-12-02 08:39:53,068 INFO L226 Difference]: Without dead ends: 90
[2024-12-02 08:39:53,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:39:53,068 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 15 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:53,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 343 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:39:53,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2024-12-02 08:39:53,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2024-12-02 08:39:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 82 states have internal predecessors, (89), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:39:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions.
[2024-12-02 08:39:53,075 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 12
[2024-12-02 08:39:53,075 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:53,075 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions.
[2024-12-02 08:39:53,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-12-02 08:39:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions.
[2024-12-02 08:39:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-12-02 08:39:53,076 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:53,076 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:53,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 08:39:53,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:53,277 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:53,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:53,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1309019852, now seen corresponding path program 1 times
[2024-12-02 08:39:53,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:53,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334940197]
[2024-12-02 08:39:53,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:53,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:53,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:53,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:53,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 08:39:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:53,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:53,345 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:53,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:53,376 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:53,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334940197]
[2024-12-02 08:39:53,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334940197] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:53,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:53,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:39:53,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316285462]
[2024-12-02 08:39:53,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:53,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:39:53,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:53,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:39:53,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:39:53,378 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-12-02 08:39:53,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:53,398 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions.
[2024-12-02 08:39:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 08:39:53,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 12
[2024-12-02 08:39:53,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:53,399 INFO L225 Difference]: With dead ends: 93
[2024-12-02 08:39:53,399 INFO L226 Difference]: Without dead ends: 93
[2024-12-02 08:39:53,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:39:53,400 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 1 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:53,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 271 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:39:53,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-12-02 08:39:53,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92.
[2024-12-02 08:39:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 84 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:39:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions.
[2024-12-02 08:39:53,406 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 12
[2024-12-02 08:39:53,406 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:53,406 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions.
[2024-12-02 08:39:53,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-12-02 08:39:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions.
[2024-12-02 08:39:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-12-02 08:39:53,407 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:53,407 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:53,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 08:39:53,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:53,608 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:53,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:53,608 INFO L85 PathProgramCache]: Analyzing trace with hash 257401917, now seen corresponding path program 1 times
[2024-12-02 08:39:53,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:53,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062271770]
[2024-12-02 08:39:53,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:53,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:53,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:53,610 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:53,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 08:39:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:53,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:53,674 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:53,678 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
[2024-12-02 08:39:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:53,752 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:53,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:53,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062271770]
[2024-12-02 08:39:53,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062271770] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:53,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:53,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 08:39:53,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758893838]
[2024-12-02 08:39:53,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:53,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 08:39:53,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:53,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 08:39:53,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-12-02 08:39:53,754 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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)
[2024-12-02 08:39:54,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:54,033 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions.
[2024-12-02 08:39:54,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 08:39:54,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 16
[2024-12-02 08:39:54,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:54,034 INFO L225 Difference]: With dead ends: 92
[2024-12-02 08:39:54,034 INFO L226 Difference]: Without dead ends: 92
[2024-12-02 08:39:54,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2024-12-02 08:39:54,035 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 14 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:54,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 419 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 08:39:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-12-02 08:39:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91.
[2024-12-02 08:39:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 83 states have internal predecessors, (90), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:39:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions.
[2024-12-02 08:39:54,041 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 16
[2024-12-02 08:39:54,041 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:54,042 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions.
[2024-12-02 08:39:54,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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)
[2024-12-02 08:39:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions.
[2024-12-02 08:39:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-12-02 08:39:54,042 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:54,042 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:54,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 08:39:54,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:54,243 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:54,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:54,243 INFO L85 PathProgramCache]: Analyzing trace with hash 257401918, now seen corresponding path program 1 times
[2024-12-02 08:39:54,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:54,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821638817]
[2024-12-02 08:39:54,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:54,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:54,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:54,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:54,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 08:39:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:54,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:54,302 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:54,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:54,319 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821638817]
[2024-12-02 08:39:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821638817] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:54,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:54,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:39:54,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046220908]
[2024-12-02 08:39:54,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:54,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:39:54,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:54,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:39:54,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:39:54,321 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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)
[2024-12-02 08:39:54,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:54,337 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions.
[2024-12-02 08:39:54,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 08:39:54,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 16
[2024-12-02 08:39:54,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:54,338 INFO L225 Difference]: With dead ends: 92
[2024-12-02 08:39:54,338 INFO L226 Difference]: Without dead ends: 92
[2024-12-02 08:39:54,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:39:54,339 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:54,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 180 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:39:54,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-12-02 08:39:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2024-12-02 08:39:54,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.467741935483871) internal successors, (91), 84 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:39:54,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions.
[2024-12-02 08:39:54,345 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 16
[2024-12-02 08:39:54,345 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:54,345 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions.
[2024-12-02 08:39:54,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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)
[2024-12-02 08:39:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions.
[2024-12-02 08:39:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 08:39:54,346 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:54,346 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:54,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 08:39:54,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:54,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:54,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:54,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1046509865, now seen corresponding path program 1 times
[2024-12-02 08:39:54,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:54,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134687271]
[2024-12-02 08:39:54,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:54,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:54,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:54,549 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:54,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 08:39:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:54,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:54,613 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:54,676 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:54,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:54,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134687271]
[2024-12-02 08:39:54,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134687271] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:54,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:54,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 08:39:54,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319979396]
[2024-12-02 08:39:54,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:54,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 08:39:54,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:54,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 08:39:54,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-02 08:39:54,678 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 08:39:54,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:54,726 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions.
[2024-12-02 08:39:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 08:39:54,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-12-02 08:39:54,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:54,728 INFO L225 Difference]: With dead ends: 101
[2024-12-02 08:39:54,728 INFO L226 Difference]: Without dead ends: 101
[2024-12-02 08:39:54,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:39:54,729 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 3 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:54,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 440 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:39:54,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-12-02 08:39:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100.
[2024-12-02 08:39:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 90 states have internal predecessors, (96), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7)
[2024-12-02 08:39:54,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions.
[2024-12-02 08:39:54,734 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 17
[2024-12-02 08:39:54,734 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:54,734 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions.
[2024-12-02 08:39:54,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 08:39:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions.
[2024-12-02 08:39:54,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 08:39:54,735 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:54,735 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:54,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 08:39:54,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:54,935 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:54,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:54,936 INFO L85 PathProgramCache]: Analyzing trace with hash -669734229, now seen corresponding path program 1 times
[2024-12-02 08:39:54,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:54,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021171143]
[2024-12-02 08:39:54,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:54,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:54,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:54,938 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:54,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-12-02 08:39:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:55,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:55,010 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:55,039 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:39:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:39:55,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:55,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021171143]
[2024-12-02 08:39:55,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021171143] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 08:39:55,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 08:39:55,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-12-02 08:39:55,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050749719]
[2024-12-02 08:39:55,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:39:55,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 08:39:55,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:55,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 08:39:55,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-12-02 08:39:55,087 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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)
[2024-12-02 08:39:55,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:55,148 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions.
[2024-12-02 08:39:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 08:39:55,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 17
[2024-12-02 08:39:55,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:55,150 INFO L225 Difference]: With dead ends: 103
[2024-12-02 08:39:55,150 INFO L226 Difference]: Without dead ends: 103
[2024-12-02 08:39:55,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-12-02 08:39:55,151 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 8 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:55,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 446 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:39:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2024-12-02 08:39:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103.
[2024-12-02 08:39:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 93 states have internal predecessors, (99), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7)
[2024-12-02 08:39:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions.
[2024-12-02 08:39:55,156 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 17
[2024-12-02 08:39:55,157 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:55,157 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions.
[2024-12-02 08:39:55,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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)
[2024-12-02 08:39:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions.
[2024-12-02 08:39:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-12-02 08:39:55,158 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:55,158 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:55,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-12-02 08:39:55,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:55,358 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:55,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash -644065410, now seen corresponding path program 2 times
[2024-12-02 08:39:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:55,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213653936]
[2024-12-02 08:39:55,359 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 08:39:55,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:55,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:55,361 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:55,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-12-02 08:39:55,442 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 08:39:55,442 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 08:39:55,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:55,447 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:55,462 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
[2024-12-02 08:39:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:39:55,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:55,665 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:55,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213653936]
[2024-12-02 08:39:55,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213653936] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:55,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:55,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 08:39:55,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316582368]
[2024-12-02 08:39:55,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:55,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 08:39:55,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:55,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 08:39:55,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2024-12-02 08:39:55,667 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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)
[2024-12-02 08:39:56,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:56,096 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions.
[2024-12-02 08:39:56,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 08:39:56,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 20
[2024-12-02 08:39:56,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:56,098 INFO L225 Difference]: With dead ends: 103
[2024-12-02 08:39:56,098 INFO L226 Difference]: Without dead ends: 103
[2024-12-02 08:39:56,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2024-12-02 08:39:56,099 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 13 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:56,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 539 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 08:39:56,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2024-12-02 08:39:56,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102.
[2024-12-02 08:39:56,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 70 states have (on average 1.4) internal successors, (98), 92 states have internal predecessors, (98), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7)
[2024-12-02 08:39:56,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions.
[2024-12-02 08:39:56,102 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 20
[2024-12-02 08:39:56,103 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:56,103 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions.
[2024-12-02 08:39:56,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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)
[2024-12-02 08:39:56,103 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions.
[2024-12-02 08:39:56,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-12-02 08:39:56,103 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:56,104 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:56,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-12-02 08:39:56,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:56,304 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:56,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:56,305 INFO L85 PathProgramCache]: Analyzing trace with hash -473074435, now seen corresponding path program 1 times
[2024-12-02 08:39:56,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:56,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641263956]
[2024-12-02 08:39:56,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:56,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:56,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:56,307 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:56,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-12-02 08:39:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:56,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:56,388 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:39:56,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:56,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:56,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641263956]
[2024-12-02 08:39:56,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641263956] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:56,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:56,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 08:39:56,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024600802]
[2024-12-02 08:39:56,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:56,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 08:39:56,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:56,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 08:39:56,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-02 08:39:56,431 INFO L87 Difference]: Start difference. First operand 102 states and 111 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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)
[2024-12-02 08:39:56,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:56,469 INFO L93 Difference]: Finished difference Result 102 states and 110 transitions.
[2024-12-02 08:39:56,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 08:39:56,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 22
[2024-12-02 08:39:56,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:56,470 INFO L225 Difference]: With dead ends: 102
[2024-12-02 08:39:56,470 INFO L226 Difference]: Without dead ends: 102
[2024-12-02 08:39:56,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:39:56,470 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 7 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:56,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 418 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:39:56,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2024-12-02 08:39:56,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102.
[2024-12-02 08:39:56,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 92 states have internal predecessors, (97), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7)
[2024-12-02 08:39:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 110 transitions.
[2024-12-02 08:39:56,475 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 110 transitions. Word has length 22
[2024-12-02 08:39:56,475 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:56,475 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 110 transitions.
[2024-12-02 08:39:56,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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)
[2024-12-02 08:39:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 110 transitions.
[2024-12-02 08:39:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-12-02 08:39:56,476 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:56,476 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]
[2024-12-02 08:39:56,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-12-02 08:39:56,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:56,677 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:56,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:56,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2090704038, now seen corresponding path program 1 times
[2024-12-02 08:39:56,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:56,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391801125]
[2024-12-02 08:39:56,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:56,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:56,679 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:56,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-12-02 08:39:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:56,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:56,776 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:56,779 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
[2024-12-02 08:39:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:39:56,872 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:56,872 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:56,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391801125]
[2024-12-02 08:39:56,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391801125] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:56,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:56,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 08:39:56,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85364669]
[2024-12-02 08:39:56,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:56,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 08:39:56,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:56,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 08:39:56,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2024-12-02 08:39:56,873 INFO L87 Difference]: Start difference. First operand 102 states and 110 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 08:39:57,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:57,256 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions.
[2024-12-02 08:39:57,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 08:39:57,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24
[2024-12-02 08:39:57,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:57,257 INFO L225 Difference]: With dead ends: 101
[2024-12-02 08:39:57,257 INFO L226 Difference]: Without dead ends: 101
[2024-12-02 08:39:57,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132
[2024-12-02 08:39:57,258 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 14 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:57,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 448 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 08:39:57,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-12-02 08:39:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100.
[2024-12-02 08:39:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 70 states have (on average 1.3571428571428572) internal successors, (95), 90 states have internal predecessors, (95), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7)
[2024-12-02 08:39:57,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions.
[2024-12-02 08:39:57,263 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 24
[2024-12-02 08:39:57,263 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:57,263 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions.
[2024-12-02 08:39:57,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 08:39:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions.
[2024-12-02 08:39:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-12-02 08:39:57,264 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:57,264 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]
[2024-12-02 08:39:57,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-12-02 08:39:57,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:57,464 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:57,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:57,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2090704039, now seen corresponding path program 1 times
[2024-12-02 08:39:57,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:57,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787985295]
[2024-12-02 08:39:57,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:57,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:57,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:57,467 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:57,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-12-02 08:39:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:57,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:57,565 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:57,580 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
[2024-12-02 08:39:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:39:57,784 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:57,784 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787985295]
[2024-12-02 08:39:57,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787985295] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:57,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:57,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 08:39:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369136397]
[2024-12-02 08:39:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:57,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 08:39:57,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:57,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 08:39:57,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2024-12-02 08:39:57,786 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 08:39:58,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:58,218 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions.
[2024-12-02 08:39:58,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 08:39:58,218 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24
[2024-12-02 08:39:58,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:58,219 INFO L225 Difference]: With dead ends: 99
[2024-12-02 08:39:58,219 INFO L226 Difference]: Without dead ends: 99
[2024-12-02 08:39:58,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156
[2024-12-02 08:39:58,220 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 14 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:58,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 568 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 08:39:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2024-12-02 08:39:58,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98.
[2024-12-02 08:39:58,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 88 states have internal predecessors, (93), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7)
[2024-12-02 08:39:58,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions.
[2024-12-02 08:39:58,224 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 24
[2024-12-02 08:39:58,224 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:58,224 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions.
[2024-12-02 08:39:58,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 08:39:58,224 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions.
[2024-12-02 08:39:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-12-02 08:39:58,225 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:58,225 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:39:58,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-12-02 08:39:58,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:58,425 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:58,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:58,426 INFO L85 PathProgramCache]: Analyzing trace with hash -590186857, now seen corresponding path program 1 times
[2024-12-02 08:39:58,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:58,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967663164]
[2024-12-02 08:39:58,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:58,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:58,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:58,428 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:58,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-12-02 08:39:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:58,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:58,492 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-12-02 08:39:58,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:58,527 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:58,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967663164]
[2024-12-02 08:39:58,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967663164] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:58,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:58,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 08:39:58,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76364766]
[2024-12-02 08:39:58,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:58,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:39:58,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:58,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:39:58,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:39:58,528 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-12-02 08:39:58,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:58,632 INFO L93 Difference]: Finished difference Result 104 states and 112 transitions.
[2024-12-02 08:39:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 08:39:58,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25
[2024-12-02 08:39:58,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:58,633 INFO L225 Difference]: With dead ends: 104
[2024-12-02 08:39:58,633 INFO L226 Difference]: Without dead ends: 88
[2024-12-02 08:39:58,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:39:58,633 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 27 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:58,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 170 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:39:58,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2024-12-02 08:39:58,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84.
[2024-12-02 08:39:58,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 77 states have internal predecessors, (82), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:39:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions.
[2024-12-02 08:39:58,641 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 25
[2024-12-02 08:39:58,641 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:58,641 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions.
[2024-12-02 08:39:58,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-12-02 08:39:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions.
[2024-12-02 08:39:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-12-02 08:39:58,641 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:58,641 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]
[2024-12-02 08:39:58,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-12-02 08:39:58,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:58,842 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:58,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:58,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2040062057, now seen corresponding path program 1 times
[2024-12-02 08:39:58,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:58,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81266400]
[2024-12-02 08:39:58,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:58,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:58,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:58,844 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:58,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-12-02 08:39:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:58,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:58,929 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:39:58,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:58,968 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:58,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81266400]
[2024-12-02 08:39:58,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81266400] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:58,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:58,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 08:39:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981400341]
[2024-12-02 08:39:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:58,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 08:39:58,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:58,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 08:39:58,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:39:58,969 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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)
[2024-12-02 08:39:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:59,009 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions.
[2024-12-02 08:39:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 08:39:59,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 24
[2024-12-02 08:39:59,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:59,010 INFO L225 Difference]: With dead ends: 84
[2024-12-02 08:39:59,010 INFO L226 Difference]: Without dead ends: 84
[2024-12-02 08:39:59,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-12-02 08:39:59,010 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 9 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:59,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 455 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:39:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2024-12-02 08:39:59,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84.
[2024-12-02 08:39:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.35) internal successors, (81), 76 states have internal predecessors, (81), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:39:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions.
[2024-12-02 08:39:59,014 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 24
[2024-12-02 08:39:59,014 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:59,014 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions.
[2024-12-02 08:39:59,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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)
[2024-12-02 08:39:59,014 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions.
[2024-12-02 08:39:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-12-02 08:39:59,014 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:59,014 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]
[2024-12-02 08:39:59,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-12-02 08:39:59,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:59,215 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:39:59,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:39:59,215 INFO L85 PathProgramCache]: Analyzing trace with hash -491539834, now seen corresponding path program 1 times
[2024-12-02 08:39:59,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:39:59,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016351664]
[2024-12-02 08:39:59,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:39:59,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:39:59,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:39:59,218 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:39:59,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-12-02 08:39:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:39:59,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-12-02 08:39:59,328 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:39:59,331 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
[2024-12-02 08:39:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:39:59,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:39:59,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:39:59,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016351664]
[2024-12-02 08:39:59,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016351664] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:39:59,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:39:59,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 08:39:59,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923279138]
[2024-12-02 08:39:59,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:39:59,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 08:39:59,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:39:59,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 08:39:59,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-12-02 08:39:59,456 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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)
[2024-12-02 08:39:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:39:59,842 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions.
[2024-12-02 08:39:59,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 08:39:59,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 32
[2024-12-02 08:39:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:39:59,844 INFO L225 Difference]: With dead ends: 95
[2024-12-02 08:39:59,844 INFO L226 Difference]: Without dead ends: 95
[2024-12-02 08:39:59,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-12-02 08:39:59,845 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 50 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 08:39:59,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 329 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 08:39:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2024-12-02 08:39:59,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82.
[2024-12-02 08:39:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 74 states have internal predecessors, (79), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:39:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions.
[2024-12-02 08:39:59,848 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 32
[2024-12-02 08:39:59,849 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:39:59,849 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions.
[2024-12-02 08:39:59,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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)
[2024-12-02 08:39:59,849 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions.
[2024-12-02 08:39:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-12-02 08:39:59,849 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:39:59,849 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]
[2024-12-02 08:39:59,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-12-02 08:40:00,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:00,050 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:00,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:00,050 INFO L85 PathProgramCache]: Analyzing trace with hash -491539833, now seen corresponding path program 1 times
[2024-12-02 08:40:00,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:00,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007678959]
[2024-12-02 08:40:00,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:00,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:00,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:00,053 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:00,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-12-02 08:40:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:00,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:00,178 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:00,190 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
[2024-12-02 08:40:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:40:00,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:00,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:00,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007678959]
[2024-12-02 08:40:00,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007678959] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:00,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:00,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 08:40:00,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048453506]
[2024-12-02 08:40:00,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:00,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 08:40:00,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:00,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 08:40:00,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-12-02 08:40:00,420 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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)
[2024-12-02 08:40:00,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:00,748 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions.
[2024-12-02 08:40:00,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 08:40:00,749 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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 32
[2024-12-02 08:40:00,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:00,749 INFO L225 Difference]: With dead ends: 80
[2024-12-02 08:40:00,750 INFO L226 Difference]: Without dead ends: 80
[2024-12-02 08:40:00,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2024-12-02 08:40:00,750 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 63 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:00,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 393 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 08:40:00,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2024-12-02 08:40:00,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80.
[2024-12-02 08:40:00,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 72 states have internal predecessors, (77), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:40:00,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions.
[2024-12-02 08:40:00,753 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 32
[2024-12-02 08:40:00,753 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:00,753 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions.
[2024-12-02 08:40:00,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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)
[2024-12-02 08:40:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions.
[2024-12-02 08:40:00,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-12-02 08:40:00,753 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:00,753 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]
[2024-12-02 08:40:00,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-12-02 08:40:00,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:00,954 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:00,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:00,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2089073431, now seen corresponding path program 1 times
[2024-12-02 08:40:00,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:00,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1346024142]
[2024-12-02 08:40:00,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:00,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:00,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:00,956 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:00,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-12-02 08:40:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:01,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:01,085 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:40:01,145 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:01,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:01,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346024142]
[2024-12-02 08:40:01,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346024142] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:01,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:01,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 08:40:01,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314875046]
[2024-12-02 08:40:01,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:01,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 08:40:01,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:01,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 08:40:01,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:40:01,146 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:01,188 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions.
[2024-12-02 08:40:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 08:40:01,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37
[2024-12-02 08:40:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:01,189 INFO L225 Difference]: With dead ends: 80
[2024-12-02 08:40:01,189 INFO L226 Difference]: Without dead ends: 80
[2024-12-02 08:40:01,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:40:01,190 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:01,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 415 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:40:01,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2024-12-02 08:40:01,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80.
[2024-12-02 08:40:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 72 states have internal predecessors, (76), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:40:01,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions.
[2024-12-02 08:40:01,193 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 84 transitions. Word has length 37
[2024-12-02 08:40:01,193 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:01,193 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 84 transitions.
[2024-12-02 08:40:01,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:01,193 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 84 transitions.
[2024-12-02 08:40:01,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-12-02 08:40:01,193 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:01,194 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]
[2024-12-02 08:40:01,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0
[2024-12-02 08:40:01,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:01,394 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:01,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash -677689551, now seen corresponding path program 1 times
[2024-12-02 08:40:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:01,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952953055]
[2024-12-02 08:40:01,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:01,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:01,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:01,396 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:01,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-12-02 08:40:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:01,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:01,535 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:01,539 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
[2024-12-02 08:40:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:40:01,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:01,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:01,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952953055]
[2024-12-02 08:40:01,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952953055] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:01,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:01,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-12-02 08:40:01,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468105360]
[2024-12-02 08:40:01,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:01,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-02 08:40:01,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:01,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-02 08:40:01,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2024-12-02 08:40:01,711 INFO L87 Difference]: Start difference. First operand 80 states and 84 transitions. Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:02,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:02,141 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions.
[2024-12-02 08:40:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 08:40:02,141 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43
[2024-12-02 08:40:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:02,142 INFO L225 Difference]: With dead ends: 112
[2024-12-02 08:40:02,142 INFO L226 Difference]: Without dead ends: 112
[2024-12-02 08:40:02,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156
[2024-12-02 08:40:02,143 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 74 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:02,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 328 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 08:40:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states.
[2024-12-02 08:40:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 96.
[2024-12-02 08:40:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 86 states have internal predecessors, (93), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-12-02 08:40:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions.
[2024-12-02 08:40:02,147 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 43
[2024-12-02 08:40:02,147 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:02,147 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions.
[2024-12-02 08:40:02,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions.
[2024-12-02 08:40:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-12-02 08:40:02,147 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:02,147 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]
[2024-12-02 08:40:02,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-12-02 08:40:02,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:02,348 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:02,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:02,348 INFO L85 PathProgramCache]: Analyzing trace with hash -677689550, now seen corresponding path program 1 times
[2024-12-02 08:40:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:02,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043300699]
[2024-12-02 08:40:02,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:02,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:02,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:02,350 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:02,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-12-02 08:40:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:02,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:02,492 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:02,501 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
[2024-12-02 08:40:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:40:02,758 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:02,758 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:02,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043300699]
[2024-12-02 08:40:02,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043300699] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:02,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:02,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-12-02 08:40:02,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5978689]
[2024-12-02 08:40:02,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:02,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 08:40:02,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:02,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 08:40:02,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2024-12-02 08:40:02,759 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:03,160 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions.
[2024-12-02 08:40:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 08:40:03,161 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43
[2024-12-02 08:40:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:03,161 INFO L225 Difference]: With dead ends: 94
[2024-12-02 08:40:03,161 INFO L226 Difference]: Without dead ends: 94
[2024-12-02 08:40:03,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182
[2024-12-02 08:40:03,162 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:03,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 445 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 08:40:03,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2024-12-02 08:40:03,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2024-12-02 08:40:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 84 states have internal predecessors, (89), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-12-02 08:40:03,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions.
[2024-12-02 08:40:03,171 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 43
[2024-12-02 08:40:03,172 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:03,172 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions.
[2024-12-02 08:40:03,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:03,172 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions.
[2024-12-02 08:40:03,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2024-12-02 08:40:03,172 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:03,172 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]
[2024-12-02 08:40:03,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0
[2024-12-02 08:40:03,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:03,373 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:03,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1467498869, now seen corresponding path program 1 times
[2024-12-02 08:40:03,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:03,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930755914]
[2024-12-02 08:40:03,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:03,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:03,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:03,375 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:03,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-12-02 08:40:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:03,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:03,523 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:03,526 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
[2024-12-02 08:40:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:40:03,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:03,665 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:03,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930755914]
[2024-12-02 08:40:03,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930755914] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:03,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:03,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-12-02 08:40:03,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347265482]
[2024-12-02 08:40:03,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:03,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 08:40:03,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:03,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 08:40:03,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-12-02 08:40:03,666 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:04,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:04,060 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions.
[2024-12-02 08:40:04,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-02 08:40:04,061 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49
[2024-12-02 08:40:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:04,061 INFO L225 Difference]: With dead ends: 105
[2024-12-02 08:40:04,061 INFO L226 Difference]: Without dead ends: 105
[2024-12-02 08:40:04,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210
[2024-12-02 08:40:04,062 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 53 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:04,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 361 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 08:40:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2024-12-02 08:40:04,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94.
[2024-12-02 08:40:04,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 75 states have (on average 1.2) internal successors, (90), 84 states have internal predecessors, (90), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-12-02 08:40:04,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions.
[2024-12-02 08:40:04,066 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 49
[2024-12-02 08:40:04,066 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:04,067 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions.
[2024-12-02 08:40:04,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:04,067 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions.
[2024-12-02 08:40:04,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2024-12-02 08:40:04,067 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:04,067 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]
[2024-12-02 08:40:04,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2024-12-02 08:40:04,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:04,268 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:04,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1467498870, now seen corresponding path program 1 times
[2024-12-02 08:40:04,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:04,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620670657]
[2024-12-02 08:40:04,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:04,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:04,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:04,270 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:04,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-12-02 08:40:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:04,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:04,442 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:04,451 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
[2024-12-02 08:40:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:40:04,796 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:04,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:04,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620670657]
[2024-12-02 08:40:04,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620670657] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:04,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:04,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2024-12-02 08:40:04,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118423880]
[2024-12-02 08:40:04,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:04,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-12-02 08:40:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:04,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-12-02 08:40:04,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156
[2024-12-02 08:40:04,798 INFO L87 Difference]: Start difference. First operand 94 states and 103 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:05,293 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions.
[2024-12-02 08:40:05,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-02 08:40:05,293 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49
[2024-12-02 08:40:05,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:05,294 INFO L225 Difference]: With dead ends: 92
[2024-12-02 08:40:05,294 INFO L226 Difference]: Without dead ends: 92
[2024-12-02 08:40:05,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240
[2024-12-02 08:40:05,296 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 39 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:05,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 433 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 08:40:05,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-12-02 08:40:05,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2024-12-02 08:40:05,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 75 states have (on average 1.16) internal successors, (87), 82 states have internal predecessors, (87), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-12-02 08:40:05,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions.
[2024-12-02 08:40:05,300 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 49
[2024-12-02 08:40:05,300 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:05,300 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions.
[2024-12-02 08:40:05,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:05,300 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions.
[2024-12-02 08:40:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-12-02 08:40:05,300 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:05,300 INFO L218 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:40:05,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-12-02 08:40:05,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:05,501 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:05,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:05,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1333968031, now seen corresponding path program 1 times
[2024-12-02 08:40:05,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:05,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145882753]
[2024-12-02 08:40:05,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:05,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:05,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:05,503 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:05,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-12-02 08:40:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:05,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:05,662 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:05,753 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 08:40:05,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:05,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:05,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145882753]
[2024-12-02 08:40:05,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145882753] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:05,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:05,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 08:40:05,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777820446]
[2024-12-02 08:40:05,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:05,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 08:40:05,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:05,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 08:40:05,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2024-12-02 08:40:05,755 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:40:05,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:05,816 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions.
[2024-12-02 08:40:05,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 08:40:05,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 51
[2024-12-02 08:40:05,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:05,817 INFO L225 Difference]: With dead ends: 96
[2024-12-02 08:40:05,817 INFO L226 Difference]: Without dead ends: 92
[2024-12-02 08:40:05,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2024-12-02 08:40:05,818 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:05,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 501 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:40:05,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-12-02 08:40:05,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2024-12-02 08:40:05,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 75 states have (on average 1.1333333333333333) internal successors, (85), 82 states have internal predecessors, (85), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-12-02 08:40:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions.
[2024-12-02 08:40:05,821 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 51
[2024-12-02 08:40:05,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:05,821 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions.
[2024-12-02 08:40:05,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:40:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions.
[2024-12-02 08:40:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-12-02 08:40:05,822 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:05,822 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]
[2024-12-02 08:40:05,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2024-12-02 08:40:06,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:06,022 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:06,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:06,023 INFO L85 PathProgramCache]: Analyzing trace with hash -213301527, now seen corresponding path program 1 times
[2024-12-02 08:40:06,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:06,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1631467957]
[2024-12-02 08:40:06,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:06,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:06,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:06,025 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:06,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-12-02 08:40:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:06,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:06,224 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:40:06,303 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:40:06,485 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:40:06,486 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:06,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631467957]
[2024-12-02 08:40:06,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631467957] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 08:40:06,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 08:40:06,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2024-12-02 08:40:06,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476793937]
[2024-12-02 08:40:06,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:40:06,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-12-02 08:40:06,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:06,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-12-02 08:40:06,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182
[2024-12-02 08:40:06,487 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 08:40:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:06,686 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions.
[2024-12-02 08:40:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-02 08:40:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52
[2024-12-02 08:40:06,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:06,688 INFO L225 Difference]: With dead ends: 98
[2024-12-02 08:40:06,688 INFO L226 Difference]: Without dead ends: 98
[2024-12-02 08:40:06,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342
[2024-12-02 08:40:06,688 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 7 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:06,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 544 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:40:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2024-12-02 08:40:06,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98.
[2024-12-02 08:40:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 81 states have (on average 1.123456790123457) internal successors, (91), 88 states have internal predecessors, (91), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-12-02 08:40:06,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions.
[2024-12-02 08:40:06,692 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 52
[2024-12-02 08:40:06,692 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:06,692 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions.
[2024-12-02 08:40:06,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 08:40:06,692 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions.
[2024-12-02 08:40:06,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-12-02 08:40:06,692 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:06,693 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]
[2024-12-02 08:40:06,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0
[2024-12-02 08:40:06,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:06,893 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:06,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1284507593, now seen corresponding path program 2 times
[2024-12-02 08:40:06,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:06,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092429528]
[2024-12-02 08:40:06,894 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 08:40:06,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:06,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:06,895 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:06,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-12-02 08:40:07,057 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 08:40:07,057 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 08:40:07,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 91 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:07,067 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:07,077 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
[2024-12-02 08:40:07,304 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:40:07,305 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:40:07,305 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 08:40:07,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25
[2024-12-02 08:40:07,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13
[2024-12-02 08:40:07,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34
[2024-12-02 08:40:08,127 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-12-02 08:40:08,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 10
[2024-12-02 08:40:08,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:40:08,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 29
[2024-12-02 08:40:08,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:40:08,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 25
[2024-12-02 08:40:08,904 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2024-12-02 08:40:08,904 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:08,904 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:08,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092429528]
[2024-12-02 08:40:08,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092429528] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:08,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:08,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28
[2024-12-02 08:40:08,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596251093]
[2024-12-02 08:40:08,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:08,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-12-02 08:40:08,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:08,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-12-02 08:40:08,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=694, Unknown=0, NotChecked=0, Total=756
[2024-12-02 08:40:08,906 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand has 28 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 25 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:11,604 INFO L93 Difference]: Finished difference Result 90 states and 93 transitions.
[2024-12-02 08:40:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states.
[2024-12-02 08:40:11,605 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 25 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58
[2024-12-02 08:40:11,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:11,605 INFO L225 Difference]: With dead ends: 90
[2024-12-02 08:40:11,605 INFO L226 Difference]: Without dead ends: 90
[2024-12-02 08:40:11,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=110, Invalid=1296, Unknown=0, NotChecked=0, Total=1406
[2024-12-02 08:40:11,606 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 10 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:11,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1037 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-12-02 08:40:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2024-12-02 08:40:11,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2024-12-02 08:40:11,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 77 states have (on average 1.0909090909090908) internal successors, (84), 81 states have internal predecessors, (84), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:40:11,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions.
[2024-12-02 08:40:11,610 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 58
[2024-12-02 08:40:11,610 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:11,610 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions.
[2024-12-02 08:40:11,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 25 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 08:40:11,610 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions.
[2024-12-02 08:40:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2024-12-02 08:40:11,611 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:11,611 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:40:11,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2024-12-02 08:40:11,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:11,812 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:11,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:11,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1072822774, now seen corresponding path program 1 times
[2024-12-02 08:40:11,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:11,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587087605]
[2024-12-02 08:40:11,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:11,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:11,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:11,814 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:11,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-12-02 08:40:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:12,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:12,055 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-12-02 08:40:12,219 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:40:12,695 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 8 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:40:12,695 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:12,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587087605]
[2024-12-02 08:40:12,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587087605] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 08:40:12,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 08:40:12,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26
[2024-12-02 08:40:12,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014167465]
[2024-12-02 08:40:12,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:40:12,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-12-02 08:40:12,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:12,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-12-02 08:40:12,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=462, Unknown=0, NotChecked=0, Total=650
[2024-12-02 08:40:12,698 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-12-02 08:40:13,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:13,662 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions.
[2024-12-02 08:40:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2024-12-02 08:40:13,663 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71
[2024-12-02 08:40:13,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:13,663 INFO L225 Difference]: With dead ends: 102
[2024-12-02 08:40:13,663 INFO L226 Difference]: Without dead ends: 102
[2024-12-02 08:40:13,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=423, Invalid=909, Unknown=0, NotChecked=0, Total=1332
[2024-12-02 08:40:13,664 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 26 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:13,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 925 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 08:40:13,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2024-12-02 08:40:13,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102.
[2024-12-02 08:40:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 89 states have (on average 1.0898876404494382) internal successors, (97), 93 states have internal predecessors, (97), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:40:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions.
[2024-12-02 08:40:13,666 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 71
[2024-12-02 08:40:13,667 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:13,667 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions.
[2024-12-02 08:40:13,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-12-02 08:40:13,667 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions.
[2024-12-02 08:40:13,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-12-02 08:40:13,667 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:13,667 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:40:13,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0
[2024-12-02 08:40:13,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:13,868 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:13,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:13,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1936382250, now seen corresponding path program 2 times
[2024-12-02 08:40:13,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:13,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766449489]
[2024-12-02 08:40:13,869 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 08:40:13,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:13,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:13,870 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:13,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-12-02 08:40:15,063 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 08:40:15,063 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 08:40:15,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:15,074 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked.
[2024-12-02 08:40:15,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:40:15,304 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:40:15,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766449489]
[2024-12-02 08:40:15,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766449489] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:40:15,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:40:15,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-12-02 08:40:15,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638841162]
[2024-12-02 08:40:15,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:40:15,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 08:40:15,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:40:15,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 08:40:15,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-12-02 08:40:15,305 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 08:40:15,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:40:15,539 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions.
[2024-12-02 08:40:15,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 08:40:15,540 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 77
[2024-12-02 08:40:15,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:40:15,540 INFO L225 Difference]: With dead ends: 101
[2024-12-02 08:40:15,540 INFO L226 Difference]: Without dead ends: 101
[2024-12-02 08:40:15,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210
[2024-12-02 08:40:15,541 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 36 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 08:40:15,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 422 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 08:40:15,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-12-02 08:40:15,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2024-12-02 08:40:15,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 89 states have (on average 1.0786516853932584) internal successors, (96), 92 states have internal predecessors, (96), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5)
[2024-12-02 08:40:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 105 transitions.
[2024-12-02 08:40:15,543 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 105 transitions. Word has length 77
[2024-12-02 08:40:15,543 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:40:15,543 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 105 transitions.
[2024-12-02 08:40:15,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 08:40:15,543 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 105 transitions.
[2024-12-02 08:40:15,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-12-02 08:40:15,544 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:40:15,544 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:40:15,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0
[2024-12-02 08:40:15,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:15,744 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:40:15,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:40:15,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1997003999, now seen corresponding path program 1 times
[2024-12-02 08:40:15,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:40:15,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109673852]
[2024-12-02 08:40:15,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:15,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:15,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:15,747 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:15,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2024-12-02 08:40:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:40:16,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 128 conjuncts are in the unsatisfiable core
[2024-12-02 08:40:16,063 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:40:16,074 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
[2024-12-02 08:40:16,352 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:40:16,353 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:40:16,354 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:40:16,354 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 08:40:16,355 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 08:40:16,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33
[2024-12-02 08:40:16,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17
[2024-12-02 08:40:16,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45
[2024-12-02 08:40:17,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 81
[2024-12-02 08:40:17,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 65
[2024-12-02 08:40:18,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 129
[2024-12-02 08:40:18,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 257
[2024-12-02 08:40:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked.
[2024-12-02 08:40:28,031 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:41:13,814 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:41:13,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109673852]
[2024-12-02 08:41:13,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109673852] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:41:13,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1912609446]
[2024-12-02 08:41:13,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:41:13,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 08:41:13,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 08:41:13,816 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 08:41:13,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process
[2024-12-02 08:41:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:41:15,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 127 conjuncts are in the unsatisfiable core
[2024-12-02 08:41:15,727 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:41:19,575 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:41:19,575 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:41:19,576 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:41:19,576 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 08:41:19,577 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 08:41:19,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33
[2024-12-02 08:41:21,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:41:21,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 45
[2024-12-02 08:41:23,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:41:23,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 81
[2024-12-02 08:41:49,914 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:41:49,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 201 treesize of output 129
[2024-12-02 08:42:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-12-02 08:42:08,026 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:43:29,445 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_7 (Array (_ BitVec 32) (_ BitVec 8)))) (or (not (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset|))) (store (let ((.cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset|))) (store (select |c_#memory_int#1| |c_ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base|) .cse0 (select v_DerPreprocessor_7 .cse0))) .cse1 (select v_DerPreprocessor_7 .cse1))) v_DerPreprocessor_7)) (= (_ bv1 32) (let ((.cse2 (bvadd (_ bv4294967295 32) (let ((.cse3 (bvadd (_ bv1 32) (let ((.cse4 (select (store |c_#memory_int#1| |c_ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|))) (concat (concat (concat (select .cse4 (bvadd (_ bv15 32) |c_ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|)) (select .cse4 (bvadd (_ bv14 32) |c_ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|))) (select .cse4 (bvadd (_ bv13 32) |c_ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|))) (select .cse4 (bvadd (_ bv12 32) |c_ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|))))))) (concat (concat (concat ((_ extract 31 24) .cse3) ((_ extract 23 16) .cse3)) ((_ extract 15 8) .cse3)) ((_ extract 7 0) .cse3)))))) (concat (concat (concat ((_ extract 31 24) .cse2) ((_ extract 23 16) .cse2)) ((_ extract 15 8) .cse2)) ((_ extract 7 0) .cse2)))))) is different from false
[2024-12-02 08:43:29,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1912609446] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:43:29,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 08:43:29,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 43] total 73
[2024-12-02 08:43:29,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424910190]
[2024-12-02 08:43:29,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:43:29,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states
[2024-12-02 08:43:29,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:43:29,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants.
[2024-12-02 08:43:29,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=13005, Unknown=37, NotChecked=230, Total=13806
[2024-12-02 08:43:29,453 INFO L87 Difference]: Start difference. First operand 101 states and 105 transitions. Second operand has 73 states, 71 states have (on average 1.6338028169014085) internal successors, (116), 67 states have internal predecessors, (116), 7 states have call successors, (7), 3 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8)
[2024-12-02 08:44:11,342 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 62 DAG size of output: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 08:44:27,891 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 61 DAG size of output: 58 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 08:44:54,853 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 60 DAG size of output: 56 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 08:45:11,385 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 59 DAG size of output: 56 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 08:45:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:45:13,372 INFO L93 Difference]: Finished difference Result 101 states and 104 transitions.
[2024-12-02 08:45:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states.
[2024-12-02 08:45:13,373 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 71 states have (on average 1.6338028169014085) internal successors, (116), 67 states have internal predecessors, (116), 7 states have call successors, (7), 3 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 79
[2024-12-02 08:45:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:45:13,374 INFO L225 Difference]: With dead ends: 101
[2024-12-02 08:45:13,374 INFO L226 Difference]: Without dead ends: 101
[2024-12-02 08:45:13,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 120 SyntacticMatches, 2 SemanticMatches, 150 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7350 ImplicationChecksByTransitivity, 285.6s TimeCoverageRelationStatistics Valid=1003, Invalid=21600, Unknown=51, NotChecked=298, Total=22952
[2024-12-02 08:45:13,378 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 44 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2024-12-02 08:45:13,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1045 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2024-12-02 08:45:13,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-12-02 08:45:13,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2024-12-02 08:45:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 89 states have (on average 1.0786516853932584) internal successors, (96), 92 states have internal predecessors, (96), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:45:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 104 transitions.
[2024-12-02 08:45:13,380 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 104 transitions. Word has length 79
[2024-12-02 08:45:13,380 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:45:13,380 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 104 transitions.
[2024-12-02 08:45:13,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 71 states have (on average 1.6338028169014085) internal successors, (116), 67 states have internal predecessors, (116), 7 states have call successors, (7), 3 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8)
[2024-12-02 08:45:13,380 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 104 transitions.
[2024-12-02 08:45:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-12-02 08:45:13,381 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:45:13,381 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:45:13,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0
[2024-12-02 08:45:13,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0
[2024-12-02 08:45:13,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt
[2024-12-02 08:45:13,782 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:45:13,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:45:13,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1057920824, now seen corresponding path program 1 times
[2024-12-02 08:45:13,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:45:13,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200540039]
[2024-12-02 08:45:13,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:45:13,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:45:13,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:45:13,785 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:45:13,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process
[2024-12-02 08:45:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:45:14,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 189 conjuncts are in the unsatisfiable core
[2024-12-02 08:45:14,165 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:45:14,175 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
[2024-12-02 08:45:14,373 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
[2024-12-02 08:45:14,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:14,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:14,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:14,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:14,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-12-02 08:45:14,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28
[2024-12-02 08:45:15,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31
[2024-12-02 08:45:15,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31
[2024-12-02 08:45:15,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31
[2024-12-02 08:45:15,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31
[2024-12-02 08:45:15,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38
[2024-12-02 08:45:15,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41
[2024-12-02 08:45:15,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41
[2024-12-02 08:45:15,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41
[2024-12-02 08:45:15,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41
[2024-12-02 08:45:16,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41
[2024-12-02 08:45:16,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13
[2024-12-02 08:45:17,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41
[2024-12-02 08:45:17,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41
[2024-12-02 08:45:17,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13
[2024-12-02 08:45:19,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41
[2024-12-02 08:45:19,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 08:45:19,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:45:19,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 41
[2024-12-02 08:45:20,481 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:45:20,481 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:45:26,263 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:45:26,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200540039]
[2024-12-02 08:45:26,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200540039] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:45:26,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [152365567]
[2024-12-02 08:45:26,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:45:26,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 08:45:26,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 08:45:26,265 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 08:45:26,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process
[2024-12-02 08:45:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:45:27,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 151 conjuncts are in the unsatisfiable core
[2024-12-02 08:45:27,476 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:45:28,104 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
[2024-12-02 08:45:28,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:28,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:28,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:28,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:29,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:29,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:29,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:29,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:29,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:30,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:30,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:30,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:30,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:30,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 08:45:31,033 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 23 treesize of output 11
[2024-12-02 08:45:31,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 11
[2024-12-02 08:45:32,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11
[2024-12-02 08:45:33,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 11
[2024-12-02 08:45:34,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 11
[2024-12-02 08:45:35,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 11
[2024-12-02 08:45:35,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:45:35,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15
[2024-12-02 08:45:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:45:35,388 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:45:35,487 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2072 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (let ((.cse2 (bvadd (_ bv3 32) |c_ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset|))) (store (let ((.cse1 (bvadd (_ bv2 32) |c_ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset|))) (store (let ((.cse0 (bvadd (_ bv1 32) |c_ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset|))) (store (store (select |c_#memory_$Pointer$#1.offset| |c_ldv_kobject_put_ldv_atomic_sub_return_~v#1.base|) |c_ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset| (select v_ArrVal_2072 |c_ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset|)) .cse0 (select v_ArrVal_2072 .cse0))) .cse1 (select v_ArrVal_2072 .cse1))) .cse2 (select v_ArrVal_2072 .cse2))) v_ArrVal_2072)) (= (select (select (store |c_#memory_$Pointer$#1.offset| |c_ldv_kobject_put_ldv_atomic_sub_return_~v#1.base| v_ArrVal_2072) |c_ldv_kobject_put_ldv_kref_sub_~kref#1.base|) (_ bv0 32)) (_ bv0 32)))) is different from false
[2024-12-02 08:45:36,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [152365567] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:45:36,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 08:45:36,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 44] total 90
[2024-12-02 08:45:36,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111426117]
[2024-12-02 08:45:36,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:45:36,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 91 states
[2024-12-02 08:45:36,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:45:36,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants.
[2024-12-02 08:45:36,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=568, Invalid=11645, Unknown=1, NotChecked=218, Total=12432
[2024-12-02 08:45:36,810 INFO L87 Difference]: Start difference. First operand 101 states and 104 transitions. Second operand has 91 states, 90 states have (on average 1.5555555555555556) internal successors, (140), 85 states have internal predecessors, (140), 5 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6)
[2024-12-02 08:45:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:45:53,880 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions.
[2024-12-02 08:45:53,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2024-12-02 08:45:53,881 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 90 states have (on average 1.5555555555555556) internal successors, (140), 85 states have internal predecessors, (140), 5 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 80
[2024-12-02 08:45:53,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:45:53,881 INFO L225 Difference]: With dead ends: 94
[2024-12-02 08:45:53,881 INFO L226 Difference]: Without dead ends: 94
[2024-12-02 08:45:53,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 132 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6648 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=850, Invalid=16709, Unknown=1, NotChecked=262, Total=17822
[2024-12-02 08:45:53,884 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 78 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time
[2024-12-02 08:45:53,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 788 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time]
[2024-12-02 08:45:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2024-12-02 08:45:53,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2024-12-02 08:45:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.0481927710843373) internal successors, (87), 85 states have internal predecessors, (87), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:45:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions.
[2024-12-02 08:45:53,886 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 80
[2024-12-02 08:45:53,886 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:45:53,886 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions.
[2024-12-02 08:45:53,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 90 states have (on average 1.5555555555555556) internal successors, (140), 85 states have internal predecessors, (140), 5 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6)
[2024-12-02 08:45:53,886 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions.
[2024-12-02 08:45:53,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-12-02 08:45:53,887 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:45:53,887 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:45:53,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0
[2024-12-02 08:45:54,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0
[2024-12-02 08:45:54,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt
[2024-12-02 08:45:54,288 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:45:54,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:45:54,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1564192753, now seen corresponding path program 1 times
[2024-12-02 08:45:54,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:45:54,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963305895]
[2024-12-02 08:45:54,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:45:54,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:45:54,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:45:54,290 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:45:54,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process
[2024-12-02 08:45:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:45:54,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 185 conjuncts are in the unsatisfiable core
[2024-12-02 08:45:54,694 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:45:54,706 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
[2024-12-02 08:45:54,884 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
[2024-12-02 08:45:54,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-12-02 08:45:55,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28
[2024-12-02 08:45:55,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38
[2024-12-02 08:45:55,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48
[2024-12-02 08:45:55,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 58
[2024-12-02 08:45:55,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 68
[2024-12-02 08:45:55,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 78
[2024-12-02 08:45:55,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 88
[2024-12-02 08:45:56,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98
[2024-12-02 08:45:56,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108
[2024-12-02 08:45:56,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118
[2024-12-02 08:45:56,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 128
[2024-12-02 08:45:57,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 138
[2024-12-02 08:45:57,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 148
[2024-12-02 08:45:57,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 158
[2024-12-02 08:45:59,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 144
[2024-12-02 08:45:59,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 37
[2024-12-02 08:46:00,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 114
[2024-12-02 08:46:02,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 105 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 111
[2024-12-02 08:46:02,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34
[2024-12-02 08:46:03,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 105 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 111
[2024-12-02 08:46:05,086 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-12-02 08:46:05,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 10
[2024-12-02 08:46:05,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:46:05,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 105 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 114 treesize of output 111
[2024-12-02 08:46:06,665 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:46:06,665 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:46:13,649 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:46:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963305895]
[2024-12-02 08:46:13,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963305895] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:46:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [827423220]
[2024-12-02 08:46:13,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:46:13,650 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 08:46:13,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 08:46:13,652 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 08:46:13,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process
[2024-12-02 08:46:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:46:14,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 150 conjuncts are in the unsatisfiable core
[2024-12-02 08:46:14,598 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:46:15,390 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
[2024-12-02 08:46:15,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-12-02 08:46:15,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28
[2024-12-02 08:46:16,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38
[2024-12-02 08:46:16,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48
[2024-12-02 08:46:16,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 58
[2024-12-02 08:46:17,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 68
[2024-12-02 08:46:17,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 78
[2024-12-02 08:46:17,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 88
[2024-12-02 08:46:18,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98
[2024-12-02 08:46:18,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108
[2024-12-02 08:46:19,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118
[2024-12-02 08:46:19,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 128
[2024-12-02 08:46:20,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 138
[2024-12-02 08:46:21,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 148
[2024-12-02 08:46:21,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:46:21,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 117 treesize of output 158
[2024-12-02 08:46:24,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 144
[2024-12-02 08:46:25,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:46:25,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 103 treesize of output 114
[2024-12-02 08:46:27,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:46:27,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 105 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 114 treesize of output 111
[2024-12-02 08:46:29,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:46:29,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 105 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 114 treesize of output 111
[2024-12-02 08:46:30,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:46:30,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 105 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 114 treesize of output 111
[2024-12-02 08:46:31,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:46:31,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 55 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 85 treesize of output 125
[2024-12-02 08:46:32,464 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:46:32,464 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:46:35,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [827423220] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:46:35,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 08:46:35,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 48] total 96
[2024-12-02 08:46:35,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998362923]
[2024-12-02 08:46:35,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:46:35,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states
[2024-12-02 08:46:35,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:46:35,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants.
[2024-12-02 08:46:35,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=13915, Unknown=0, NotChecked=0, Total=14520
[2024-12-02 08:46:35,144 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand has 96 states, 96 states have (on average 1.46875) internal successors, (141), 90 states have internal predecessors, (141), 5 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6)
[2024-12-02 08:47:20,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:47:20,811 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions.
[2024-12-02 08:47:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states.
[2024-12-02 08:47:20,813 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.46875) internal successors, (141), 90 states have internal predecessors, (141), 5 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 81
[2024-12-02 08:47:20,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:47:20,813 INFO L225 Difference]: With dead ends: 90
[2024-12-02 08:47:20,813 INFO L226 Difference]: Without dead ends: 89
[2024-12-02 08:47:20,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7735 ImplicationChecksByTransitivity, 43.1s TimeCoverageRelationStatistics Valid=832, Invalid=17800, Unknown=0, NotChecked=0, Total=18632
[2024-12-02 08:47:20,816 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 77 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time
[2024-12-02 08:47:20,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 771 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 32.5s Time]
[2024-12-02 08:47:20,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2024-12-02 08:47:20,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89.
[2024-12-02 08:47:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 08:47:20,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions.
[2024-12-02 08:47:20,820 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 81
[2024-12-02 08:47:20,820 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:47:20,820 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions.
[2024-12-02 08:47:20,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 1.46875) internal successors, (141), 90 states have internal predecessors, (141), 5 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6)
[2024-12-02 08:47:20,820 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions.
[2024-12-02 08:47:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89
[2024-12-02 08:47:20,821 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:47:20,821 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:47:20,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0
[2024-12-02 08:47:21,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0
[2024-12-02 08:47:21,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:47:21,222 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 08:47:21,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:47:21,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1018792745, now seen corresponding path program 1 times
[2024-12-02 08:47:21,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 08:47:21,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41311452]
[2024-12-02 08:47:21,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:47:21,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:47:21,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:47:21,224 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:47:21,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process
[2024-12-02 08:47:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:47:21,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-12-02 08:47:21,585 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:47:21,775 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 0 case distinctions, treesize of input 14 treesize of output 3
[2024-12-02 08:47:22,073 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~kobj~2#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~kobj~2#1.base|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~kobj~2#1.base| (_ bv0 1))))) is different from true
[2024-12-02 08:47:22,078 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked.
[2024-12-02 08:47:22,078 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:47:22,214 INFO L349 Elim1Store]: treesize reduction 14, result has 63.2 percent of original size
[2024-12-02 08:47:22,215 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 25 treesize of output 35
[2024-12-02 08:47:22,462 INFO L349 Elim1Store]: treesize reduction 30, result has 21.1 percent of original size
[2024-12-02 08:47:22,462 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 43 treesize of output 38
[2024-12-02 08:47:22,920 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 08:47:22,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41311452]
[2024-12-02 08:47:22,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41311452] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:47:22,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [961629373]
[2024-12-02 08:47:22,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:47:22,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 08:47:22,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 08:47:22,923 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 08:47:22,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process
[2024-12-02 08:47:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:47:23,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-12-02 08:47:23,983 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:47:24,408 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size
[2024-12-02 08:47:24,409 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 18
[2024-12-02 08:47:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked.
[2024-12-02 08:47:24,783 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:47:24,924 INFO L349 Elim1Store]: treesize reduction 14, result has 63.2 percent of original size
[2024-12-02 08:47:24,925 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 25 treesize of output 35
[2024-12-02 08:47:25,061 INFO L349 Elim1Store]: treesize reduction 30, result has 21.1 percent of original size
[2024-12-02 08:47:25,061 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 43 treesize of output 38
[2024-12-02 08:47:25,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [961629373] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:47:25,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 08:47:25,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19
[2024-12-02 08:47:25,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082350726]
[2024-12-02 08:47:25,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:47:25,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-12-02 08:47:25,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 08:47:25,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-12-02 08:47:25,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=488, Unknown=2, NotChecked=44, Total=600
[2024-12-02 08:47:25,485 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 20 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8)
[2024-12-02 08:47:26,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:47:26,570 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions.
[2024-12-02 08:47:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-02 08:47:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) Word has length 88
[2024-12-02 08:47:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:47:26,571 INFO L225 Difference]: With dead ends: 88
[2024-12-02 08:47:26,571 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 08:47:26,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 308 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=133, Invalid=1059, Unknown=2, NotChecked=66, Total=1260
[2024-12-02 08:47:26,571 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 57 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 08:47:26,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 388 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 384 Invalid, 0 Unknown, 63 Unchecked, 0.8s Time]
[2024-12-02 08:47:26,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 08:47:26,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 08:47:26,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:47:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 08:47:26,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88
[2024-12-02 08:47:26,572 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:47:26,572 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 08:47:26,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8)
[2024-12-02 08:47:26,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 08:47:26,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 08:47:26,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr6ASSERT_VIOLATIONMEMORY_FREE (14 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE (13 of 25 remaining)
[2024-12-02 08:47:26,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr8ASSERT_VIOLATIONMEMORY_FREE (12 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE (11 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE (10 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr11ASSERT_VIOLATIONMEMORY_FREE (9 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (8 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (7 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 25 remaining)
[2024-12-02 08:47:26,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (0 of 25 remaining)
[2024-12-02 08:47:26,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0
[2024-12-02 08:47:26,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0
[2024-12-02 08:47:26,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt
[2024-12-02 08:47:26,979 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:47:26,981 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 08:47:26,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:47:26 BoogieIcfgContainer
[2024-12-02 08:47:26,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 08:47:26,984 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 08:47:26,984 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 08:47:26,984 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 08:47:26,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:39:50" (3/4) ...
[2024-12-02 08:47:26,986 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 08:47:26,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc
[2024-12-02 08:47:26,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD
[2024-12-02 08:47:26,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_put
[2024-12-02 08:47:26,994 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges
[2024-12-02 08:47:26,995 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2024-12-02 08:47:26,995 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-02 08:47:26,995 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 08:47:27,079 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 08:47:27,080 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 08:47:27,080 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 08:47:27,081 INFO L158 Benchmark]: Toolchain (without parser) took 457488.74ms. Allocated memory was 92.3MB in the beginning and 268.4MB in the end (delta: 176.2MB). Free memory was 68.5MB in the beginning and 115.4MB in the end (delta: -46.9MB). Peak memory consumption was 130.8MB. Max. memory is 16.1GB.
[2024-12-02 08:47:27,081 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:47:27,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.85ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 40.7MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-02 08:47:27,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.14ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 68.3MB in the end (delta: -27.5MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB.
[2024-12-02 08:47:27,081 INFO L158 Benchmark]: Boogie Preprocessor took 56.24ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 64.7MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:47:27,081 INFO L158 Benchmark]: RCFGBuilder took 576.21ms. Allocated memory is still 92.3MB. Free memory was 64.4MB in the beginning and 36.9MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-02 08:47:27,082 INFO L158 Benchmark]: TraceAbstraction took 456206.82ms. Allocated memory was 92.3MB in the beginning and 268.4MB in the end (delta: 176.2MB). Free memory was 36.6MB in the beginning and 119.9MB in the end (delta: -83.3MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB.
[2024-12-02 08:47:27,082 INFO L158 Benchmark]: Witness Printer took 96.36ms. Allocated memory is still 268.4MB. Free memory was 119.9MB in the beginning and 115.4MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:47:27,083 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 497.85ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 40.7MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 49.14ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 68.3MB in the end (delta: -27.5MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 56.24ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 64.7MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 576.21ms. Allocated memory is still 92.3MB. Free memory was 64.4MB in the beginning and 36.9MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 456206.82ms. Allocated memory was 92.3MB in the beginning and 268.4MB in the end (delta: 176.2MB). Free memory was 36.6MB in the beginning and 119.9MB in the end (delta: -83.3MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB.
* Witness Printer took 96.36ms. Allocated memory is still 268.4MB. Free memory was 119.9MB in the beginning and 115.4MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 700]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 700]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 700]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 702]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 702]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 702]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 764]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 90 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 456.2s, OverallIterations: 31, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 177.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 842 SdHoareTripleChecker+Valid, 54.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 829 mSDsluCounter, 14945 SdHoareTripleChecker+Invalid, 52.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 63 IncrementalHoareTripleChecker+Unchecked, 12841 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11067 IncrementalHoareTripleChecker+Invalid, 11237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 2104 mSDtfsCounter, 11067 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2124 GetRequests, 1384 SyntacticMatches, 21 SemanticMatches, 719 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 22599 ImplicationChecksByTransitivity, 359.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=9, InterpolantAutomatonStates: 428, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 31 MinimizatonAttempts, 63 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 261.3s InterpolantComputationTime, 1510 NumberOfCodeBlocks, 1496 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1612 ConstructedInterpolants, 150 QuantifiedInterpolants, 26983 SizeOfPredicates, 154 NumberOfNonLiveVariables, 8876 ConjunctsInSsa, 1428 ConjunctsInUnsatCore, 38 InterpolantComputations, 24 PerfectInterpolantSequences, 793/1653 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
25 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-12-02 08:47:27,292 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process
[2024-12-02 08:47:27,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdf8b26-2555-4a77-a1d9-775259a7487a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE