./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 []