./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i --full-output --architecture 32bit


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


Checking for memory safety (deref-memtrack)
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu --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 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:32:49,586 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:32:49,691 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-11-19 07:32:49,704 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:32:49,705 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:32:49,742 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:32:49,744 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:32:49,744 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:32:49,745 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:32:49,750 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:32:49,752 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:32:49,752 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-19 07:32:49,752 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-19 07:32:49,754 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:32:49,754 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-19 07:32:49,755 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-19 07:32:49,755 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-19 07:32:49,756 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-19 07:32:49,756 INFO  L153        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:32:49,756 INFO  L153        SettingsManager]:  * Bitprecise bitfields=true
[2023-11-19 07:32:49,757 INFO  L153        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:32:49,757 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:32:49,758 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:32:49,758 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-11-19 07:32:49,759 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-19 07:32:49,759 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-19 07:32:49,760 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:32:49,760 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-19 07:32:49,761 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-19 07:32:49,761 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:32:49,763 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:32:49,763 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:32:49,763 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-19 07:32:49,763 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:32:49,764 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:32:49,764 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:32:49,764 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:32:49,764 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:32:49,765 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu
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 -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2
[2023-11-19 07:32:50,030 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:32:50,059 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:32:50,062 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:32:50,064 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-19 07:32:50,065 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-19 07:32:50,067 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i
[2023-11-19 07:32:53,124 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:32:53,612 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-19 07:32:53,613 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i
[2023-11-19 07:32:53,655 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/data/f8cb6d366/5ef00a8de8f54945a1a77c0e86b77ade/FLAG912cf9750
[2023-11-19 07:32:53,676 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/data/f8cb6d366/5ef00a8de8f54945a1a77c0e86b77ade
[2023-11-19 07:32:53,682 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:32:53,685 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:32:53,688 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:32:53,688 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:32:53,695 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:32:53,696 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:53" (1/1) ...
[2023-11-19 07:32:53,697 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e73bcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:53, skipping insertion in model container
[2023-11-19 07:32:53,697 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:53" (1/1) ...
[2023-11-19 07:32:53,827 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:32:55,524 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:32:55,593 ERROR L324         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)
[2023-11-19 07:32:55,593 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c392d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:55, skipping insertion in model container
[2023-11-19 07:32:55,593 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:32:55,595 INFO  L186        ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2023-11-19 07:32:55,598 INFO  L158              Benchmark]: Toolchain (without parser) took 1911.91ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 136.3MB in the end (delta: -8.1MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB.
[2023-11-19 07:32:55,598 INFO  L158              Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:32:55,599 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1907.24ms. Allocated memory is still 178.3MB. Free memory was 127.5MB in the beginning and 136.3MB in the end (delta: -8.7MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB.
[2023-11-19 07:32:55,601 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 1907.24ms. Allocated memory is still 178.3MB. Free memory was 127.5MB in the beginning and 136.3MB in the end (delta: -8.7MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - UnsupportedSyntaxResult [Line: 2977]: 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu --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 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:32:57,896 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:32:57,977 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2023-11-19 07:32:57,983 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:32:57,984 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:32:58,012 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:32:58,012 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:32:58,013 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:32:58,014 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:32:58,015 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:32:58,016 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:32:58,016 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-19 07:32:58,017 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-19 07:32:58,017 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:32:58,018 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-19 07:32:58,019 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-19 07:32:58,019 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-19 07:32:58,020 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-19 07:32:58,020 INFO  L153        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:32:58,021 INFO  L153        SettingsManager]:  * Bitprecise bitfields=true
[2023-11-19 07:32:58,021 INFO  L153        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:32:58,022 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:32:58,022 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:32:58,022 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-11-19 07:32:58,023 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:32:58,023 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-11-19 07:32:58,024 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-19 07:32:58,024 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-19 07:32:58,025 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:32:58,025 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-19 07:32:58,025 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-19 07:32:58,026 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:32:58,026 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:32:58,027 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:32:58,027 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-11-19 07:32:58,028 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:32:58,028 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:32:58,028 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:32:58,029 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:32:58,029 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-11-19 07:32:58,030 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:32:58,031 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu
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 -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2
[2023-11-19 07:32:58,479 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:32:58,506 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:32:58,509 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:32:58,511 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-19 07:32:58,511 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-19 07:32:58,513 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i
[2023-11-19 07:33:01,598 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:33:02,106 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-19 07:33:02,107 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i
[2023-11-19 07:33:02,149 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/data/f1c269f59/ae4b99d34424453b8ac2d3ac46d2f943/FLAG1c5a1c328
[2023-11-19 07:33:02,169 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/data/f1c269f59/ae4b99d34424453b8ac2d3ac46d2f943
[2023-11-19 07:33:02,175 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:33:02,178 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:33:02,180 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:33:02,180 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:33:02,185 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:33:02,188 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:02" (1/1) ...
[2023-11-19 07:33:02,189 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54163292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:02, skipping insertion in model container
[2023-11-19 07:33:02,190 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:02" (1/1) ...
[2023-11-19 07:33:02,298 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:33:03,845 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:33:03,896 INFO  L199         MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2023-11-19 07:33:03,924 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:33:04,144 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:33:04,175 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-19 07:33:04,366 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:33:04,582 WARN  L675               CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:33:04,590 INFO  L206         MainTranslator]: Completed translation
[2023-11-19 07:33:04,590 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04 WrapperNode
[2023-11-19 07:33:04,591 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:33:04,592 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:33:04,592 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:33:04,592 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:33:04,600 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,714 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,785 INFO  L138                Inliner]: procedures = 482, calls = 841, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 985
[2023-11-19 07:33:04,786 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:33:04,787 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:33:04,787 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:33:04,787 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:33:04,796 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,797 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,811 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,811 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,859 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,877 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,889 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,913 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,926 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:33:04,927 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:33:04,928 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:33:04,928 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:33:04,934 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (1/1) ...
[2023-11-19 07:33:04,942 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:33:04,954 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:33:04,970 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:04,998 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:33:05,018 INFO  L130     BoogieDeclarations]: Found specification of procedure zf_timer_off
[2023-11-19 07:33:05,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure zf_timer_off
[2023-11-19 07:33:05,018 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT
[2023-11-19 07:33:05,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT
[2023-11-19 07:33:05,019 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-11-19 07:33:05,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin
[2023-11-19 07:33:05,019 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore
[2023-11-19 07:33:05,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore
[2023-11-19 07:33:05,019 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:33:05,019 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2
[2023-11-19 07:33:05,020 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 07:33:05,020 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4
[2023-11-19 07:33:05,020 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock
[2023-11-19 07:33:05,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock
[2023-11-19 07:33:05,020 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-11-19 07:33:05,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end
[2023-11-19 07:33:05,021 INFO  L130     BoogieDeclarations]: Found specification of procedure zf_get_control
[2023-11-19 07:33:05,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure zf_get_control
[2023-11-19 07:33:05,021 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT
[2023-11-19 07:33:05,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT
[2023-11-19 07:33:05,021 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 07:33:05,022 INFO  L130     BoogieDeclarations]: Found specification of procedure request_region
[2023-11-19 07:33:05,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure request_region
[2023-11-19 07:33:05,022 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:33:05,022 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-19 07:33:05,022 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2023-11-19 07:33:05,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2023-11-19 07:33:05,022 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_lock_irqsave
[2023-11-19 07:33:05,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave
[2023-11-19 07:33:05,023 INFO  L130     BoogieDeclarations]: Found specification of procedure release_region
[2023-11-19 07:33:05,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure release_region
[2023-11-19 07:33:05,023 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:33:05,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:33:05,023 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_lock_init
[2023-11-19 07:33:05,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_lock_init
[2023-11-19 07:33:05,024 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE8
[2023-11-19 07:33:05,024 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-19 07:33:05,024 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE2
[2023-11-19 07:33:05,024 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2023-11-19 07:33:05,024 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-11-19 07:33:05,024 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-11-19 07:33:05,024 INFO  L130     BoogieDeclarations]: Found specification of procedure del_timer
[2023-11-19 07:33:05,025 INFO  L138     BoogieDeclarations]: Found implementation of procedure del_timer
[2023-11-19 07:33:05,025 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:33:05,025 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 07:33:05,025 INFO  L130     BoogieDeclarations]: Found specification of procedure add_timer
[2023-11-19 07:33:05,025 INFO  L138     BoogieDeclarations]: Found implementation of procedure add_timer
[2023-11-19 07:33:05,025 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE8
[2023-11-19 07:33:05,025 INFO  L130     BoogieDeclarations]: Found specification of procedure cdev_add
[2023-11-19 07:33:05,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure cdev_add
[2023-11-19 07:33:05,026 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2023-11-19 07:33:05,026 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE2
[2023-11-19 07:33:05,026 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-19 07:33:05,026 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-11-19 07:33:05,026 INFO  L130     BoogieDeclarations]: Found specification of procedure printk
[2023-11-19 07:33:05,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure printk
[2023-11-19 07:33:05,027 INFO  L130     BoogieDeclarations]: Found specification of procedure outw
[2023-11-19 07:33:05,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure outw
[2023-11-19 07:33:05,027 INFO  L130     BoogieDeclarations]: Found specification of procedure outb
[2023-11-19 07:33:05,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure outb
[2023-11-19 07:33:05,027 INFO  L130     BoogieDeclarations]: Found specification of procedure misc_deregister
[2023-11-19 07:33:05,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure misc_deregister
[2023-11-19 07:33:05,028 INFO  L130     BoogieDeclarations]: Found specification of procedure assert_context_process
[2023-11-19 07:33:05,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert_context_process
[2023-11-19 07:33:05,028 INFO  L130     BoogieDeclarations]: Found specification of procedure zf_set_control
[2023-11-19 07:33:05,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure zf_set_control
[2023-11-19 07:33:05,033 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG
[2023-11-19 07:33:05,034 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG
[2023-11-19 07:33:05,034 INFO  L130     BoogieDeclarations]: Found specification of procedure zf_readw
[2023-11-19 07:33:05,034 INFO  L138     BoogieDeclarations]: Found implementation of procedure zf_readw
[2023-11-19 07:33:05,034 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4
[2023-11-19 07:33:05,034 INFO  L130     BoogieDeclarations]: Found specification of procedure zf_ping
[2023-11-19 07:33:05,034 INFO  L138     BoogieDeclarations]: Found implementation of procedure zf_ping
[2023-11-19 07:33:05,035 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_lock
[2023-11-19 07:33:05,035 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_lock
[2023-11-19 07:33:05,035 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID
[2023-11-19 07:33:05,035 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID
[2023-11-19 07:33:05,435 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-19 07:33:05,439 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:33:11,370 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-19 07:33:11,398 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:33:11,398 INFO  L302             CfgBuilder]: Removed 4 assume(true) statements.
[2023-11-19 07:33:11,405 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:11 BoogieIcfgContainer
[2023-11-19 07:33:11,406 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:33:11,408 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:33:11,409 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:33:11,412 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:33:11,412 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:02" (1/3) ...
[2023-11-19 07:33:11,413 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a697aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:11, skipping insertion in model container
[2023-11-19 07:33:11,413 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:04" (2/3) ...
[2023-11-19 07:33:11,413 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a697aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:11, skipping insertion in model container
[2023-11-19 07:33:11,414 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:11" (3/3) ...
[2023-11-19 07:33:11,415 INFO  L112   eAbstractionObserver]: Analyzing ICFG ddv_machzwd_pthread_mutex_unlock.i
[2023-11-19 07:33:11,459 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:33:11,459 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations.
[2023-11-19 07:33:11,519 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:33:11,526 INFO  L357      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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@3558ecc4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:33:11,526 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 205 error locations.
[2023-11-19 07:33:11,533 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78)
[2023-11-19 07:33:11,541 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2023-11-19 07:33:11,541 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:33:11,542 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:33:11,542 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] ===
[2023-11-19 07:33:11,548 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:33:11,548 INFO  L85        PathProgramCache]: Analyzing trace with hash 331999555, now seen corresponding path program 1 times
[2023-11-19 07:33:11,567 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:33:11,567 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834354300]
[2023-11-19 07:33:11,568 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:33:11,568 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:11,568 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:33:11,571 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:11,579 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-11-19 07:33:12,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:33:12,163 INFO  L262         TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-19 07:33:12,168 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:33:12,327 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:12,328 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:33:12,328 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:33:12,329 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834354300]
[2023-11-19 07:33:12,329 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834354300] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:33:12,330 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:33:12,330 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:33:12,331 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653855668]
[2023-11-19 07:33:12,332 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:33:12,336 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:33:12,337 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:33:12,376 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:33:12,377 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:33:12,381 INFO  L87              Difference]: Start difference. First operand  has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand  has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:33:14,423 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:33:16,432 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:33:20,245 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:33:20,246 INFO  L93              Difference]: Finished difference Result 1202 states and 1439 transitions.
[2023-11-19 07:33:20,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-19 07:33:20,248 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2023-11-19 07:33:20,248 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:33:20,270 INFO  L225             Difference]: With dead ends: 1202
[2023-11-19 07:33:20,270 INFO  L226             Difference]: Without dead ends: 1198
[2023-11-19 07:33:20,271 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:33:20,274 INFO  L413           NwaCegarLoop]: 668 mSDtfsCounter, 685 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time
[2023-11-19 07:33:20,275 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 2219 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1111 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time]
[2023-11-19 07:33:20,295 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1198 states.
[2023-11-19 07:33:20,401 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 985.
[2023-11-19 07:33:20,405 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 985 states, 592 states have (on average 1.802364864864865) internal successors, (1067), 814 states have internal predecessors, (1067), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138)
[2023-11-19 07:33:20,425 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1343 transitions.
[2023-11-19 07:33:20,426 INFO  L78                 Accepts]: Start accepts. Automaton has 985 states and 1343 transitions. Word has length 5
[2023-11-19 07:33:20,427 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:33:20,428 INFO  L495      AbstractCegarLoop]: Abstraction has 985 states and 1343 transitions.
[2023-11-19 07:33:20,429 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:33:20,433 INFO  L276                IsEmpty]: Start isEmpty. Operand 985 states and 1343 transitions.
[2023-11-19 07:33:20,433 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2023-11-19 07:33:20,433 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:33:20,434 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:33:20,446 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-11-19 07:33:20,640 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:20,641 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] ===
[2023-11-19 07:33:20,641 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:33:20,642 INFO  L85        PathProgramCache]: Analyzing trace with hash 331999556, now seen corresponding path program 1 times
[2023-11-19 07:33:20,643 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:33:20,643 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974933619]
[2023-11-19 07:33:20,643 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:33:20,643 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:20,644 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:33:20,682 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:20,685 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-11-19 07:33:21,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:33:21,179 INFO  L262         TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-19 07:33:21,181 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:33:21,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:21,316 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:33:21,317 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:33:21,317 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974933619]
[2023-11-19 07:33:21,317 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [974933619] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:33:21,317 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:33:21,317 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:33:21,317 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317043481]
[2023-11-19 07:33:21,318 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:33:21,319 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:33:21,319 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:33:21,320 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:33:21,320 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:33:21,320 INFO  L87              Difference]: Start difference. First operand 985 states and 1343 transitions. Second operand  has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:33:23,343 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:33:25,350 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:33:28,748 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:33:28,748 INFO  L93              Difference]: Finished difference Result 1117 states and 1435 transitions.
[2023-11-19 07:33:28,749 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-19 07:33:28,749 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2023-11-19 07:33:28,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:33:28,758 INFO  L225             Difference]: With dead ends: 1117
[2023-11-19 07:33:28,759 INFO  L226             Difference]: Without dead ends: 1117
[2023-11-19 07:33:28,759 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:33:28,760 INFO  L413           NwaCegarLoop]: 825 mSDtfsCounter, 268 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time
[2023-11-19 07:33:28,770 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 2589 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 865 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time]
[2023-11-19 07:33:28,774 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1117 states.
[2023-11-19 07:33:28,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1058.
[2023-11-19 07:33:28,836 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1058 states, 633 states have (on average 1.764612954186414) internal successors, (1117), 856 states have internal predecessors, (1117), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157)
[2023-11-19 07:33:28,846 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1431 transitions.
[2023-11-19 07:33:28,846 INFO  L78                 Accepts]: Start accepts. Automaton has 1058 states and 1431 transitions. Word has length 5
[2023-11-19 07:33:28,846 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:33:28,847 INFO  L495      AbstractCegarLoop]: Abstraction has 1058 states and 1431 transitions.
[2023-11-19 07:33:28,847 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:33:28,847 INFO  L276                IsEmpty]: Start isEmpty. Operand 1058 states and 1431 transitions.
[2023-11-19 07:33:28,848 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-11-19 07:33:28,848 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:33:28,848 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:33:28,859 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:33:29,054 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:29,054 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] ===
[2023-11-19 07:33:29,056 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:33:29,056 INFO  L85        PathProgramCache]: Analyzing trace with hash -1852094909, now seen corresponding path program 1 times
[2023-11-19 07:33:29,057 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:33:29,057 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486365685]
[2023-11-19 07:33:29,057 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:33:29,057 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:29,058 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:33:29,059 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:29,100 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-11-19 07:33:29,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:33:29,617 INFO  L262         TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:33:29,619 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:33:29,733 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:29,735 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:33:29,735 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:33:29,735 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486365685]
[2023-11-19 07:33:29,736 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486365685] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:33:29,736 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:33:29,736 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:33:29,736 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000697403]
[2023-11-19 07:33:29,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:33:29,737 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:33:29,737 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:33:29,738 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:33:29,738 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:33:29,739 INFO  L87              Difference]: Start difference. First operand 1058 states and 1431 transitions. Second operand  has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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)
[2023-11-19 07:33:31,428 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:33:31,428 INFO  L93              Difference]: Finished difference Result 1264 states and 1518 transitions.
[2023-11-19 07:33:31,428 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-19 07:33:31,429 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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
[2023-11-19 07:33:31,429 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:33:31,437 INFO  L225             Difference]: With dead ends: 1264
[2023-11-19 07:33:31,437 INFO  L226             Difference]: Without dead ends: 1264
[2023-11-19 07:33:31,437 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:33:31,438 INFO  L413           NwaCegarLoop]: 683 mSDtfsCounter, 658 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-11-19 07:33:31,439 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1227 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-11-19 07:33:31,442 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1264 states.
[2023-11-19 07:33:31,472 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1057.
[2023-11-19 07:33:31,474 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1057 states, 633 states have (on average 1.7567140600315956) internal successors, (1112), 855 states have internal predecessors, (1112), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157)
[2023-11-19 07:33:31,482 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1426 transitions.
[2023-11-19 07:33:31,482 INFO  L78                 Accepts]: Start accepts. Automaton has 1057 states and 1426 transitions. Word has length 11
[2023-11-19 07:33:31,483 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:33:31,483 INFO  L495      AbstractCegarLoop]: Abstraction has 1057 states and 1426 transitions.
[2023-11-19 07:33:31,483 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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)
[2023-11-19 07:33:31,483 INFO  L276                IsEmpty]: Start isEmpty. Operand 1057 states and 1426 transitions.
[2023-11-19 07:33:31,484 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-11-19 07:33:31,484 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:33:31,484 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:33:31,499 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:33:31,690 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:31,691 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] ===
[2023-11-19 07:33:31,691 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:33:31,691 INFO  L85        PathProgramCache]: Analyzing trace with hash -1852094908, now seen corresponding path program 1 times
[2023-11-19 07:33:31,692 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:33:31,692 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214272033]
[2023-11-19 07:33:31,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:33:31,692 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:31,692 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:33:31,694 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:31,710 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-11-19 07:33:32,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:33:32,264 INFO  L262         TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-19 07:33:32,266 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:33:32,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:32,463 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:33:32,463 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:33:32,463 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214272033]
[2023-11-19 07:33:32,463 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [214272033] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:33:32,463 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:33:32,464 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:33:32,464 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303779434]
[2023-11-19 07:33:32,464 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:33:32,464 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:33:32,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:33:32,465 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:33:32,465 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:33:32,465 INFO  L87              Difference]: Start difference. First operand 1057 states and 1426 transitions. Second operand  has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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)
[2023-11-19 07:33:34,490 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:33:36,635 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:33:36,636 INFO  L93              Difference]: Finished difference Result 1123 states and 1441 transitions.
[2023-11-19 07:33:36,636 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-19 07:33:36,637 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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
[2023-11-19 07:33:36,637 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:33:36,644 INFO  L225             Difference]: With dead ends: 1123
[2023-11-19 07:33:36,644 INFO  L226             Difference]: Without dead ends: 1123
[2023-11-19 07:33:36,644 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:33:36,645 INFO  L413           NwaCegarLoop]: 822 mSDtfsCounter, 268 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:33:36,645 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1493 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time]
[2023-11-19 07:33:36,652 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1123 states.
[2023-11-19 07:33:36,684 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1060.
[2023-11-19 07:33:36,686 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1060 states, 636 states have (on average 1.7531446540880504) internal successors, (1115), 858 states have internal predecessors, (1115), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157)
[2023-11-19 07:33:36,693 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1429 transitions.
[2023-11-19 07:33:36,693 INFO  L78                 Accepts]: Start accepts. Automaton has 1060 states and 1429 transitions. Word has length 11
[2023-11-19 07:33:36,694 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:33:36,694 INFO  L495      AbstractCegarLoop]: Abstraction has 1060 states and 1429 transitions.
[2023-11-19 07:33:36,694 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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)
[2023-11-19 07:33:36,694 INFO  L276                IsEmpty]: Start isEmpty. Operand 1060 states and 1429 transitions.
[2023-11-19 07:33:36,695 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 07:33:36,695 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:33:36,696 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:33:36,709 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-11-19 07:33:36,902 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:36,902 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] ===
[2023-11-19 07:33:36,902 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:33:36,903 INFO  L85        PathProgramCache]: Analyzing trace with hash 1685719407, now seen corresponding path program 1 times
[2023-11-19 07:33:36,903 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:33:36,903 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919561942]
[2023-11-19 07:33:36,904 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:33:36,904 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:36,904 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:33:36,905 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:36,941 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2498b7fa-1db8-4608-aaed-57964ed67c9d/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-11-19 07:33:37,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:33:37,446 INFO  L262         TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:33:37,448 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:33:37,716 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:37,716 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:33:38,011 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:38,011 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:33:38,012 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919561942]
[2023-11-19 07:33:38,012 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919561942] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:33:38,012 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:33:38,012 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 7
[2023-11-19 07:33:38,012 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411659037]
[2023-11-19 07:33:38,012 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:33:38,013 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-19 07:33:38,013 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:33:38,013 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-19 07:33:38,013 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-11-19 07:33:38,014 INFO  L87              Difference]: Start difference. First operand 1060 states and 1429 transitions. Second operand  has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 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)
[2023-11-19 07:33:40,044 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:33:42,051 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:33:44,055 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:33:46,059 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []