./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/wc-2.i --full-output --architecture 64bit


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


Checking for memory safety (deref-memtrack)
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/wc-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f341eaff5b8d59d4b432d28ef9496964fb23f130f25d76d129a608308250bd30
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 12:05:05,090 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-26 12:05:05,213 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf
[2023-11-26 12:05:05,220 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 12:05:05,221 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 12:05:05,259 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 12:05:05,264 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 12:05:05,265 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 12:05:05,266 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 12:05:05,273 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-26 12:05:05,273 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 12:05:05,274 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 12:05:05,275 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 12:05:05,277 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-26 12:05:05,277 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-26 12:05:05,278 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 12:05:05,278 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-26 12:05:05,279 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-26 12:05:05,279 INFO  L153        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2023-11-26 12:05:05,280 INFO  L153        SettingsManager]:  * Bitprecise bitfields=true
[2023-11-26 12:05:05,280 INFO  L153        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2023-11-26 12:05:05,281 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 12:05:05,281 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-11-26 12:05:05,282 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-11-26 12:05:05,282 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-26 12:05:05,283 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 12:05:05,283 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-26 12:05:05,284 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 12:05:05,284 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-26 12:05:05,285 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 12:05:05,286 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 12:05:05,286 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 12:05:05,287 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-26 12:05:05,287 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-26 12:05:05,287 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 12:05:05,288 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 12:05:05,288 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 12:05:05,288 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 12:05:05,288 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_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f341eaff5b8d59d4b432d28ef9496964fb23f130f25d76d129a608308250bd30
[2023-11-26 12:05:05,581 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 12:05:05,616 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 12:05:05,619 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 12:05:05,620 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-26 12:05:05,621 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-26 12:05:05,623 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/wc-2.i
[2023-11-26 12:05:08,695 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-26 12:05:09,230 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-26 12:05:09,231 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/sv-benchmarks/c/busybox-1.22.0/wc-2.i
[2023-11-26 12:05:09,270 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/data/6e8b24779/30d08c1b1417482dab4f92f5d4014fb9/FLAG18c6f73cd
[2023-11-26 12:05:09,286 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/data/6e8b24779/30d08c1b1417482dab4f92f5d4014fb9
[2023-11-26 12:05:09,293 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 12:05:09,295 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 12:05:09,297 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 12:05:09,297 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 12:05:09,302 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 12:05:09,305 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:09" (1/1) ...
[2023-11-26 12:05:09,306 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7aa6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:09, skipping insertion in model container
[2023-11-26 12:05:09,306 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:09" (1/1) ...
[2023-11-26 12:05:09,406 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-26 12:05:10,965 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 12:05:10,992 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)
[2023-11-26 12:05:10,993 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@151f6198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:10, skipping insertion in model container
[2023-11-26 12:05:10,993 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 12:05:10,993 INFO  L186        ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2023-11-26 12:05:10,995 INFO  L158              Benchmark]: Toolchain (without parser) took 1699.27ms. Allocated memory is still 153.1MB. Free memory was 117.0MB in the beginning and 76.6MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
[2023-11-26 12:05:10,996 INFO  L158              Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-26 12:05:10,997 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1696.37ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 76.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
[2023-11-26 12:05:10,998 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 1696.37ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 76.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - UnsupportedSyntaxResult [Line: 2218]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/wc-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f341eaff5b8d59d4b432d28ef9496964fb23f130f25d76d129a608308250bd30
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 12:05:13,545 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-26 12:05:13,660 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf
[2023-11-26 12:05:13,673 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 12:05:13,674 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 12:05:13,721 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 12:05:13,722 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 12:05:13,722 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 12:05:13,723 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 12:05:13,729 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-26 12:05:13,729 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 12:05:13,730 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 12:05:13,731 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 12:05:13,732 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-26 12:05:13,733 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-26 12:05:13,733 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 12:05:13,734 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-26 12:05:13,734 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-26 12:05:13,735 INFO  L153        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2023-11-26 12:05:13,736 INFO  L153        SettingsManager]:  * Bitprecise bitfields=true
[2023-11-26 12:05:13,736 INFO  L153        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2023-11-26 12:05:13,737 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 12:05:13,738 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-11-26 12:05:13,738 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-11-26 12:05:13,738 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-26 12:05:13,739 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-11-26 12:05:13,739 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-26 12:05:13,740 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 12:05:13,741 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-26 12:05:13,741 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 12:05:13,743 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-26 12:05:13,743 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 12:05:13,744 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 12:05:13,744 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 12:05:13,744 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-11-26 12:05:13,744 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2023-11-26 12:05:13,745 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 12:05:13,746 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 12:05:13,746 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 12:05:13,746 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 12:05:13,746 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-11-26 12:05:13,747 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_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f341eaff5b8d59d4b432d28ef9496964fb23f130f25d76d129a608308250bd30
[2023-11-26 12:05:14,199 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 12:05:14,235 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 12:05:14,238 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 12:05:14,240 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-26 12:05:14,241 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-26 12:05:14,243 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/wc-2.i
[2023-11-26 12:05:17,462 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-26 12:05:18,040 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-26 12:05:18,042 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/sv-benchmarks/c/busybox-1.22.0/wc-2.i
[2023-11-26 12:05:18,091 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/data/79ca0c2ef/929b13dd591848168736bc9bde92190a/FLAGeb29914b6
[2023-11-26 12:05:18,116 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/data/79ca0c2ef/929b13dd591848168736bc9bde92190a
[2023-11-26 12:05:18,123 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 12:05:18,125 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 12:05:18,129 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 12:05:18,129 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 12:05:18,135 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 12:05:18,135 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:18" (1/1) ...
[2023-11-26 12:05:18,137 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46affc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:18, skipping insertion in model container
[2023-11-26 12:05:18,137 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:18" (1/1) ...
[2023-11-26 12:05:18,245 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-26 12:05:19,713 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 12:05:19,766 INFO  L199         MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2023-11-26 12:05:19,813 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-26 12:05:20,028 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 12:05:20,039 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-26 12:05:20,219 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 12:05:20,506 WARN  L675               CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 12:05:20,506 WARN  L675               CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 12:05:20,507 WARN  L675               CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 12:05:20,507 WARN  L675               CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 12:05:20,507 WARN  L675               CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 12:05:20,507 WARN  L675               CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 12:05:20,508 WARN  L675               CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 12:05:20,508 WARN  L675               CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 12:05:20,516 INFO  L206         MainTranslator]: Completed translation
[2023-11-26 12:05:20,517 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20 WrapperNode
[2023-11-26 12:05:20,517 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 12:05:20,518 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-26 12:05:20,518 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-26 12:05:20,519 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-26 12:05:20,526 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:20,618 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:20,766 INFO  L138                Inliner]: procedures = 591, calls = 489, calls flagged for inlining = 31, calls inlined = 29, statements flattened = 1681
[2023-11-26 12:05:20,767 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-26 12:05:20,772 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-26 12:05:20,772 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-26 12:05:20,773 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-26 12:05:20,785 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:20,786 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:20,800 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:20,824 WARN  L109           MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS
[2023-11-26 12:05:20,829 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:20,830 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:20,931 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:20,958 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:21,016 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:21,036 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:21,060 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-26 12:05:21,063 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-26 12:05:21,064 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-26 12:05:21,064 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-26 12:05:21,065 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (1/1) ...
[2023-11-26 12:05:21,070 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 12:05:21,082 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 12:05:21,095 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-26 12:05:21,120 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-26 12:05:21,150 INFO  L130     BoogieDeclarations]: Found specification of procedure strerror
[2023-11-26 12:05:21,151 INFO  L130     BoogieDeclarations]: Found specification of procedure strstr
[2023-11-26 12:05:21,152 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-26 12:05:21,152 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-26 12:05:21,152 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4
[2023-11-26 12:05:21,153 INFO  L130     BoogieDeclarations]: Found specification of procedure bb_verror_msg
[2023-11-26 12:05:21,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure bb_verror_msg
[2023-11-26 12:05:21,153 INFO  L130     BoogieDeclarations]: Found specification of procedure fgetc
[2023-11-26 12:05:21,153 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-26 12:05:21,153 INFO  L130     BoogieDeclarations]: Found specification of procedure fflush
[2023-11-26 12:05:21,154 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-26 12:05:21,154 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-26 12:05:21,154 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8
[2023-11-26 12:05:21,154 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2
[2023-11-26 12:05:21,155 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4
[2023-11-26 12:05:21,155 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1
[2023-11-26 12:05:21,155 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-26 12:05:21,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-26 12:05:21,156 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2023-11-26 12:05:21,156 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy
[2023-11-26 12:05:21,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy
[2023-11-26 12:05:21,157 INFO  L130     BoogieDeclarations]: Found specification of procedure xmalloc
[2023-11-26 12:05:21,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure xmalloc
[2023-11-26 12:05:21,157 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-26 12:05:21,158 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2023-11-26 12:05:21,158 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2023-11-26 12:05:21,158 INFO  L130     BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg
[2023-11-26 12:05:21,158 INFO  L138     BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg
[2023-11-26 12:05:21,158 INFO  L130     BoogieDeclarations]: Found specification of procedure fopen
[2023-11-26 12:05:21,158 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2023-11-26 12:05:21,159 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2023-11-26 12:05:21,159 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-11-26 12:05:21,159 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-11-26 12:05:21,159 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-26 12:05:21,159 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-26 12:05:21,159 INFO  L130     BoogieDeclarations]: Found specification of procedure ferror
[2023-11-26 12:05:21,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE8
[2023-11-26 12:05:21,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2023-11-26 12:05:21,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-26 12:05:21,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-11-26 12:05:21,160 INFO  L130     BoogieDeclarations]: Found specification of procedure fclose
[2023-11-26 12:05:21,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4
[2023-11-26 12:05:21,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2
[2023-11-26 12:05:21,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2023-11-26 12:05:21,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8
[2023-11-26 12:05:21,161 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoul
[2023-11-26 12:05:21,162 INFO  L130     BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die
[2023-11-26 12:05:21,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die
[2023-11-26 12:05:21,764 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-26 12:05:21,766 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-26 12:05:21,977 WARN  L821   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2023-11-26 12:05:35,926 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-26 12:05:36,138 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-26 12:05:36,138 INFO  L309             CfgBuilder]: Removed 29 assume(true) statements.
[2023-11-26 12:05:36,139 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:36 BoogieIcfgContainer
[2023-11-26 12:05:36,139 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-26 12:05:36,141 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-26 12:05:36,142 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-26 12:05:36,145 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-26 12:05:36,145 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:05:18" (1/3) ...
[2023-11-26 12:05:36,146 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78393b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:36, skipping insertion in model container
[2023-11-26 12:05:36,146 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:20" (2/3) ...
[2023-11-26 12:05:36,146 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78393b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:36, skipping insertion in model container
[2023-11-26 12:05:36,147 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:36" (3/3) ...
[2023-11-26 12:05:36,148 INFO  L112   eAbstractionObserver]: Analyzing ICFG wc-2.i
[2023-11-26 12:05:36,167 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-26 12:05:36,167 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 488 error locations.
[2023-11-26 12:05:36,235 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 12:05:36,242 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;@82c9ddf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 12:05:36,243 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 488 error locations.
[2023-11-26 12:05:36,252 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1066 states, 551 states have (on average 2.246823956442831) internal successors, (1238), 1035 states have internal predecessors, (1238), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-11-26 12:05:36,258 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2023-11-26 12:05:36,259 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:05:36,259 INFO  L195           NwaCegarLoop]: trace histogram [1, 1]
[2023-11-26 12:05:36,260 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 485 more)] ===
[2023-11-26 12:05:36,265 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:05:36,266 INFO  L85        PathProgramCache]: Analyzing trace with hash 72571, now seen corresponding path program 1 times
[2023-11-26 12:05:36,284 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-26 12:05:36,285 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21497429]
[2023-11-26 12:05:36,286 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:05:36,286 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
[2023-11-26 12:05:36,286 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/mathsat
[2023-11-26 12:05:36,293 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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)
[2023-11-26 12:05:36,322 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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
[2023-11-26 12:05:36,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:05:36,720 INFO  L262         TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 12:05:36,725 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 12:05:36,800 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2023-11-26 12:05:36,825 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:05:36,826 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 12:05:36,827 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-26 12:05:36,828 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21497429]
[2023-11-26 12:05:36,829 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [21497429] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:05:36,829 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:05:36,834 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-26 12:05:36,836 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176030371]
[2023-11-26 12:05:36,838 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:05:36,843 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 12:05:36,843 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-26 12:05:36,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 12:05:36,882 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 12:05:36,887 INFO  L87              Difference]: Start difference. First operand  has 1066 states, 551 states have (on average 2.246823956442831) internal successors, (1238), 1035 states have internal predecessors, (1238), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 12:05:41,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:05:41,835 INFO  L93              Difference]: Finished difference Result 1210 states and 1417 transitions.
[2023-11-26 12:05:41,838 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 12:05:41,840 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2
[2023-11-26 12:05:41,840 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:05:41,861 INFO  L225             Difference]: With dead ends: 1210
[2023-11-26 12:05:41,861 INFO  L226             Difference]: Without dead ends: 1209
[2023-11-26 12:05:41,863 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 12:05:41,866 INFO  L413           NwaCegarLoop]: 972 mSDtfsCounter, 397 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2023-11-26 12:05:41,867 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1547 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2023-11-26 12:05:41,917 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1209 states.
[2023-11-26 12:05:41,983 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1054.
[2023-11-26 12:05:41,986 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1054 states, 546 states have (on average 2.172161172161172) internal successors, (1186), 1027 states have internal predecessors, (1186), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-11-26 12:05:41,994 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1230 transitions.
[2023-11-26 12:05:41,996 INFO  L78                 Accepts]: Start accepts. Automaton has 1054 states and 1230 transitions. Word has length 2
[2023-11-26 12:05:41,996 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:05:41,996 INFO  L495      AbstractCegarLoop]: Abstraction has 1054 states and 1230 transitions.
[2023-11-26 12:05:41,997 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 12:05:41,997 INFO  L276                IsEmpty]: Start isEmpty. Operand 1054 states and 1230 transitions.
[2023-11-26 12:05:41,997 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2023-11-26 12:05:41,997 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:05:41,998 INFO  L195           NwaCegarLoop]: trace histogram [1, 1]
[2023-11-26 12:05:42,009 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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
[2023-11-26 12:05:42,205 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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
[2023-11-26 12:05:42,205 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 485 more)] ===
[2023-11-26 12:05:42,206 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:05:42,206 INFO  L85        PathProgramCache]: Analyzing trace with hash 72572, now seen corresponding path program 1 times
[2023-11-26 12:05:42,207 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-26 12:05:42,207 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016297896]
[2023-11-26 12:05:42,208 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:05:42,208 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
[2023-11-26 12:05:42,208 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/mathsat
[2023-11-26 12:05:42,212 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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)
[2023-11-26 12:05:42,248 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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
[2023-11-26 12:05:42,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:05:42,598 INFO  L262         TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-26 12:05:42,600 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 12:05:42,625 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2023-11-26 12:05:42,654 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:05:42,654 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 12:05:42,654 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-26 12:05:42,655 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016297896]
[2023-11-26 12:05:42,655 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016297896] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:05:42,655 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:05:42,655 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-26 12:05:42,655 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652140574]
[2023-11-26 12:05:42,655 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:05:42,656 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 12:05:42,657 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-26 12:05:42,657 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 12:05:42,657 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 12:05:42,657 INFO  L87              Difference]: Start difference. First operand 1054 states and 1230 transitions. Second operand  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 12:05:49,794 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:05:49,795 INFO  L93              Difference]: Finished difference Result 1053 states and 1229 transitions.
[2023-11-26 12:05:49,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 12:05:49,797 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2
[2023-11-26 12:05:49,797 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:05:49,803 INFO  L225             Difference]: With dead ends: 1053
[2023-11-26 12:05:49,803 INFO  L226             Difference]: Without dead ends: 1053
[2023-11-26 12:05:49,804 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 12:05:49,805 INFO  L413           NwaCegarLoop]: 1112 mSDtfsCounter, 9 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2023-11-26 12:05:49,806 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1824 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2023-11-26 12:05:49,809 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1053 states.
[2023-11-26 12:05:49,838 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1053.
[2023-11-26 12:05:49,840 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1053 states, 546 states have (on average 2.17032967032967) internal successors, (1185), 1026 states have internal predecessors, (1185), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-11-26 12:05:49,847 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1229 transitions.
[2023-11-26 12:05:49,847 INFO  L78                 Accepts]: Start accepts. Automaton has 1053 states and 1229 transitions. Word has length 2
[2023-11-26 12:05:49,848 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:05:49,848 INFO  L495      AbstractCegarLoop]: Abstraction has 1053 states and 1229 transitions.
[2023-11-26 12:05:49,848 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 12:05:49,849 INFO  L276                IsEmpty]: Start isEmpty. Operand 1053 states and 1229 transitions.
[2023-11-26 12:05:49,849 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2023-11-26 12:05:49,849 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:05:49,849 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2023-11-26 12:05:49,858 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0
[2023-11-26 12:05:50,056 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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
[2023-11-26 12:05:50,057 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 485 more)] ===
[2023-11-26 12:05:50,057 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:05:50,057 INFO  L85        PathProgramCache]: Analyzing trace with hash 71599101, now seen corresponding path program 1 times
[2023-11-26 12:05:50,058 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-26 12:05:50,059 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899465903]
[2023-11-26 12:05:50,059 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:05:50,059 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
[2023-11-26 12:05:50,059 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/mathsat
[2023-11-26 12:05:50,060 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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)
[2023-11-26 12:05:50,062 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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
[2023-11-26 12:05:50,433 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:05:50,444 INFO  L262         TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-26 12:05:50,446 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 12:05:50,464 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2023-11-26 12:05:50,567 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:05:50,568 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 12:05:50,568 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-26 12:05:50,568 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899465903]
[2023-11-26 12:05:50,568 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899465903] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:05:50,568 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:05:50,568 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 12:05:50,569 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759021652]
[2023-11-26 12:05:50,569 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:05:50,569 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 12:05:50,569 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-26 12:05:50,570 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 12:05:50,570 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-26 12:05:50,570 INFO  L87              Difference]: Start difference. First operand 1053 states and 1229 transitions. Second operand  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 12:06:00,155 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:06:00,155 INFO  L93              Difference]: Finished difference Result 1055 states and 1231 transitions.
[2023-11-26 12:06:00,157 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-26 12:06:00,158 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2023-11-26 12:06:00,158 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:06:00,164 INFO  L225             Difference]: With dead ends: 1055
[2023-11-26 12:06:00,164 INFO  L226             Difference]: Without dead ends: 1055
[2023-11-26 12:06:00,164 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-26 12:06:00,166 INFO  L413           NwaCegarLoop]: 1111 mSDtfsCounter, 9 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time
[2023-11-26 12:06:00,167 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2536 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time]
[2023-11-26 12:06:00,170 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1055 states.
[2023-11-26 12:06:00,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1055.
[2023-11-26 12:06:00,193 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1055 states, 548 states have (on average 2.1660583941605838) internal successors, (1187), 1028 states have internal predecessors, (1187), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-11-26 12:06:00,200 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1231 transitions.
[2023-11-26 12:06:00,201 INFO  L78                 Accepts]: Start accepts. Automaton has 1055 states and 1231 transitions. Word has length 4
[2023-11-26 12:06:00,201 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:06:00,201 INFO  L495      AbstractCegarLoop]: Abstraction has 1055 states and 1231 transitions.
[2023-11-26 12:06:00,201 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 12:06:00,202 INFO  L276                IsEmpty]: Start isEmpty. Operand 1055 states and 1231 transitions.
[2023-11-26 12:06:00,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2023-11-26 12:06:00,202 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:06:00,203 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2023-11-26 12:06:00,218 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0
[2023-11-26 12:06:00,410 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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
[2023-11-26 12:06:00,411 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 485 more)] ===
[2023-11-26 12:06:00,411 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:06:00,411 INFO  L85        PathProgramCache]: Analyzing trace with hash 89107124, now seen corresponding path program 1 times
[2023-11-26 12:06:00,413 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-26 12:06:00,413 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595277836]
[2023-11-26 12:06:00,413 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:06:00,413 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
[2023-11-26 12:06:00,414 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/mathsat
[2023-11-26 12:06:00,415 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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)
[2023-11-26 12:06:00,423 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b8a198-fdf2-4fa4-8292-518bb19c14bd/bin/uautomizer-verify-VRDe98Ueme/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
[2023-11-26 12:06:00,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:06:00,806 INFO  L262         TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-26 12:06:00,807 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 12:06:00,827 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2023-11-26 12:06:01,030 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:06:01,030 INFO  L327         TraceCheckSpWp]: Computing backward predicates...