./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 9bd2c7ff
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_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:57:55,946 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:57:56,018 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-11-19 07:57:56,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:57:56,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:57:56,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:57:56,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:57:56,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:57:56,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:57:56,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:57:56,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:57:56,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:57:56,056 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:57:56,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:57:56,058 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:57:56,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:57:56,059 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:57:56,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:57:56,060 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:57:56,060 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:57:56,061 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:57:56,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:57:56,062 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:57:56,063 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:57:56,063 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:57:56,063 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:57:56,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:57:56,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:57:56,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:57:56,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:57:56,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:57:56,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:57:56,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:57:56,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:57:56,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:57:56,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:57:56,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:57:56,068 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:57:56,069 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_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758
[2023-11-19 07:57:56,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:57:56,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:57:56,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:57:56,350 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:57:56,351 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:57:56,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i
[2023-11-19 07:57:59,486 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:57:59,813 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:57:59,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i
[2023-11-19 07:57:59,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/data/e02944079/1ad14ec6095b4305af4caed617aab1d2/FLAG5e3f32c97
[2023-11-19 07:57:59,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/data/e02944079/1ad14ec6095b4305af4caed617aab1d2
[2023-11-19 07:57:59,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:57:59,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:57:59,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:57:59,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:57:59,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:57:59,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:59" (1/1) ...
[2023-11-19 07:57:59,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad5ee6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:59, skipping insertion in model container
[2023-11-19 07:57:59,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:59" (1/1) ...
[2023-11-19 07:57:59,949 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:58:00,275 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:58:00,573 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:58:00,584 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 07:58:00,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@eaf0f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:00, skipping insertion in model container
[2023-11-19 07:58:00,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:58:00,586 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2023-11-19 07:58:00,587 INFO L158 Benchmark]: Toolchain (without parser) took 718.44ms. Allocated memory is still 130.0MB. Free memory was 89.7MB in the beginning and 70.4MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-19 07:58:00,588 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:58:00,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.93ms. Allocated memory is still 130.0MB. Free memory was 89.7MB in the beginning and 70.4MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-19 07:58:00,590 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 715.93ms. Allocated memory is still 130.0MB. Free memory was 89.7MB in the beginning and 70.4MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 817]: 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_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:58:03,107 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:58:03,233 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2023-11-19 07:58:03,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:58:03,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:58:03,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:58:03,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:58:03,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:58:03,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:58:03,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:58:03,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:58:03,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:58:03,293 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:58:03,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:58:03,294 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:58:03,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:58:03,295 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:58:03,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:58:03,297 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:58:03,297 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:58:03,298 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:58:03,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:58:03,299 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:58:03,300 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 07:58:03,300 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:58:03,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:58:03,301 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:58:03,301 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:58:03,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:58:03,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:58:03,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:58:03,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:58:03,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:58:03,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:58:03,305 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 07:58:03,306 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:58:03,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:58:03,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:58:03,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:58:03,307 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 07:58:03,308 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:58:03,308 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_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758
[2023-11-19 07:58:03,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:58:03,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:58:03,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:58:03,768 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:58:03,769 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:58:03,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i
[2023-11-19 07:58:06,840 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:58:07,234 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:58:07,234 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i
[2023-11-19 07:58:07,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/data/df05de301/4048cd0da9204e4288b029de50764899/FLAG1ecd213b9
[2023-11-19 07:58:07,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/data/df05de301/4048cd0da9204e4288b029de50764899
[2023-11-19 07:58:07,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:58:07,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:58:07,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:58:07,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:58:07,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:58:07,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:07" (1/1) ...
[2023-11-19 07:58:07,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3fe78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:07, skipping insertion in model container
[2023-11-19 07:58:07,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:07" (1/1) ...
[2023-11-19 07:58:07,377 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:58:07,667 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:58:08,068 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:58:08,082 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2023-11-19 07:58:08,096 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:58:08,105 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:58:08,209 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:58:08,228 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:58:08,246 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:58:08,398 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:58:08,452 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:58:08,452 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:58:08,458 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:58:08,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08 WrapperNode
[2023-11-19 07:58:08,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:58:08,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:58:08,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:58:08,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:58:08,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,583 INFO L138 Inliner]: procedures = 211, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 873
[2023-11-19 07:58:08,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:58:08,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:58:08,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:58:08,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:58:08,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:58:08,740 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:58:08,740 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:58:08,740 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:58:08,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (1/1) ...
[2023-11-19 07:58:08,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:58:08,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:58:08,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:58:08,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:58:08,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2023-11-19 07:58:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-19 07:58:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2023-11-19 07:58:08,840 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2023-11-19 07:58:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:58:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp
[2023-11-19 07:58:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 07:58:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-19 07:58:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:58:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 07:58:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 07:58:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:58:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-19 07:58:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:58:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:58:09,069 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:58:09,072 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:58:09,076 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2023-11-19 07:58:13,597 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:58:13,611 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:58:13,612 INFO L302 CfgBuilder]: Removed 54 assume(true) statements.
[2023-11-19 07:58:13,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:13 BoogieIcfgContainer
[2023-11-19 07:58:13,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:58:13,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:58:13,623 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:58:13,626 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:58:13,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:07" (1/3) ...
[2023-11-19 07:58:13,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d90ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:13, skipping insertion in model container
[2023-11-19 07:58:13,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:08" (2/3) ...
[2023-11-19 07:58:13,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d90ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:13, skipping insertion in model container
[2023-11-19 07:58:13,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:13" (3/3) ...
[2023-11-19 07:58:13,630 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test2-1.i
[2023-11-19 07:58:13,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:58:13,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 426 error locations.
[2023-11-19 07:58:13,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:58:13,716 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;@72f0fc73, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:58:13,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 426 error locations.
[2023-11-19 07:58:13,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 868 states, 440 states have (on average 2.202272727272727) internal successors, (969), 863 states have internal predecessors, (969), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2023-11-19 07:58:13,730 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:13,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:58:13,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:13,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:13,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1202725, now seen corresponding path program 1 times
[2023-11-19 07:58:13,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:13,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516588832]
[2023-11-19 07:58:13,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:13,751 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 07:58:13,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:13,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:13,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:13,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:58:13,914 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:13,982 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
[2023-11-19 07:58:13,997 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 07:58:13,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:13,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:13,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516588832]
[2023-11-19 07:58:13,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516588832] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:13,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:14,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:58:14,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803845930]
[2023-11-19 07:58:14,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:14,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:58:14,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:14,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:58:14,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:14,040 INFO L87 Difference]: Start difference. First operand has 868 states, 440 states have (on average 2.202272727272727) internal successors, (969), 863 states have internal predecessors, (969), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.0) 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)
[2023-11-19 07:58:15,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:15,822 INFO L93 Difference]: Finished difference Result 857 states and 904 transitions.
[2023-11-19 07:58:15,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:58:15,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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
[2023-11-19 07:58:15,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:15,843 INFO L225 Difference]: With dead ends: 857
[2023-11-19 07:58:15,844 INFO L226 Difference]: Without dead ends: 855
[2023-11-19 07:58:15,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:58:15,849 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 793 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:15,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 559 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-11-19 07:58:15,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states.
[2023-11-19 07:58:15,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 854.
[2023-11-19 07:58:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 442 states have (on average 2.0271493212669682) internal successors, (896), 849 states have internal predecessors, (896), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:15,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 902 transitions.
[2023-11-19 07:58:15,947 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 902 transitions. Word has length 4
[2023-11-19 07:58:15,948 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:15,948 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 902 transitions.
[2023-11-19 07:58:15,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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)
[2023-11-19 07:58:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 902 transitions.
[2023-11-19 07:58:15,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2023-11-19 07:58:15,950 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:15,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:58:15,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:16,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:16,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:16,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:16,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1202726, now seen corresponding path program 1 times
[2023-11-19 07:58:16,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:16,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914322440]
[2023-11-19 07:58:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:16,155 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 07:58:16,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:16,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:16,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:16,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:58:16,269 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:16,286 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
[2023-11-19 07:58:16,315 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 07:58:16,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:16,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:16,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914322440]
[2023-11-19 07:58:16,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914322440] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:16,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:16,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:58:16,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496899238]
[2023-11-19 07:58:16,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:16,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:58:16,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:16,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:58:16,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:16,326 INFO L87 Difference]: Start difference. First operand 854 states and 902 transitions. Second operand has 3 states, 2 states have (on average 2.0) 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)
[2023-11-19 07:58:18,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:18,851 INFO L93 Difference]: Finished difference Result 1060 states and 1129 transitions.
[2023-11-19 07:58:18,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:58:18,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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
[2023-11-19 07:58:18,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:18,858 INFO L225 Difference]: With dead ends: 1060
[2023-11-19 07:58:18,858 INFO L226 Difference]: Without dead ends: 1060
[2023-11-19 07:58:18,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:58:18,861 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 227 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:18,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1269 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-11-19 07:58:18,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states.
[2023-11-19 07:58:18,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 976.
[2023-11-19 07:58:18,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 565 states have (on average 1.9823008849557522) internal successors, (1120), 971 states have internal predecessors, (1120), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1126 transitions.
[2023-11-19 07:58:18,920 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1126 transitions. Word has length 4
[2023-11-19 07:58:18,920 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:18,920 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1126 transitions.
[2023-11-19 07:58:18,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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)
[2023-11-19 07:58:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1126 transitions.
[2023-11-19 07:58:18,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2023-11-19 07:58:18,921 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:18,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:58:18,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:19,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:19,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr425ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:19,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:19,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1204026, now seen corresponding path program 1 times
[2023-11-19 07:58:19,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:19,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740326139]
[2023-11-19 07:58:19,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:19,131 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 07:58:19,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:19,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:19,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:19,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:58:19,279 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:19,333 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_43| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_43|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_43| (_ bv0 1))))) is different from true
[2023-11-19 07:58:19,333 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 07:58:19,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:19,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:19,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740326139]
[2023-11-19 07:58:19,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740326139] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:19,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:19,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:19,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96333606]
[2023-11-19 07:58:19,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:19,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:19,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:19,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:19,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12
[2023-11-19 07:58:19,341 INFO L87 Difference]: Start difference. First operand 976 states and 1126 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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)
[2023-11-19 07:58:21,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:21,447 INFO L93 Difference]: Finished difference Result 1061 states and 1129 transitions.
[2023-11-19 07:58:21,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:21,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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
[2023-11-19 07:58:21,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:21,453 INFO L225 Difference]: With dead ends: 1061
[2023-11-19 07:58:21,453 INFO L226 Difference]: Without dead ends: 1060
[2023-11-19 07:58:21,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12
[2023-11-19 07:58:21,455 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 228 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1119 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:21,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1265 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 516 Invalid, 0 Unknown, 1119 Unchecked, 2.0s Time]
[2023-11-19 07:58:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states.
[2023-11-19 07:58:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 976.
[2023-11-19 07:58:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 565 states have (on average 1.9805309734513274) internal successors, (1119), 971 states have internal predecessors, (1119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:21,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1125 transitions.
[2023-11-19 07:58:21,498 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1125 transitions. Word has length 4
[2023-11-19 07:58:21,498 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:21,499 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1125 transitions.
[2023-11-19 07:58:21,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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)
[2023-11-19 07:58:21,499 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1125 transitions.
[2023-11-19 07:58:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-19 07:58:21,500 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:21,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:21,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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)] Ended with exit code 0
[2023-11-19 07:58:21,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:21,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:21,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:21,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1654943313, now seen corresponding path program 1 times
[2023-11-19 07:58:21,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:21,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807323702]
[2023-11-19 07:58:21,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:21,704 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 07:58:21,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:21,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:21,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:21,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-19 07:58:21,842 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:21,864 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
[2023-11-19 07:58:21,876 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
[2023-11-19 07:58:21,970 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:58:21,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2023-11-19 07:58:21,996 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2023-11-19 07:58:21,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2023-11-19 07:58:22,023 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 07:58:22,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:22,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:22,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807323702]
[2023-11-19 07:58:22,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807323702] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:22,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:22,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:22,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107889848]
[2023-11-19 07:58:22,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:22,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:22,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:22,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:22,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:22,026 INFO L87 Difference]: Start difference. First operand 976 states and 1125 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:24,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:24,678 INFO L93 Difference]: Finished difference Result 966 states and 1114 transitions.
[2023-11-19 07:58:24,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:24,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2023-11-19 07:58:24,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:24,685 INFO L225 Difference]: With dead ends: 966
[2023-11-19 07:58:24,685 INFO L226 Difference]: Without dead ends: 966
[2023-11-19 07:58:24,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 07:58:24,686 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 1645 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:24,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 317 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-11-19 07:58:24,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states.
[2023-11-19 07:58:24,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 843.
[2023-11-19 07:58:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 442 states have (on average 1.997737556561086) internal successors, (883), 838 states have internal predecessors, (883), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 889 transitions.
[2023-11-19 07:58:24,711 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 889 transitions. Word has length 8
[2023-11-19 07:58:24,711 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:24,711 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 889 transitions.
[2023-11-19 07:58:24,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:24,712 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 889 transitions.
[2023-11-19 07:58:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-19 07:58:24,712 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:24,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:24,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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)] Ended with exit code 0
[2023-11-19 07:58:24,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:24,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:24,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash 236364828, now seen corresponding path program 1 times
[2023-11-19 07:58:24,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:24,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609777417]
[2023-11-19 07:58:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:24,916 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 07:58:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:24,918 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:24,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:25,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:58:25,046 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:25,053 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
[2023-11-19 07:58:25,065 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 07:58:25,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:25,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609777417]
[2023-11-19 07:58:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609777417] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:25,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:25,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:58:25,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658797931]
[2023-11-19 07:58:25,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:25,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:58:25,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:25,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:58:25,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:25,074 INFO L87 Difference]: Start difference. First operand 843 states and 889 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:27,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:27,044 INFO L93 Difference]: Finished difference Result 1006 states and 1073 transitions.
[2023-11-19 07:58:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:58:27,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2023-11-19 07:58:27,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:27,052 INFO L225 Difference]: With dead ends: 1006
[2023-11-19 07:58:27,052 INFO L226 Difference]: Without dead ends: 1006
[2023-11-19 07:58:27,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:27,053 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 803 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:27,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 807 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-11-19 07:58:27,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states.
[2023-11-19 07:58:27,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 796.
[2023-11-19 07:58:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 442 states have (on average 1.8914027149321266) internal successors, (836), 791 states have internal predecessors, (836), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 842 transitions.
[2023-11-19 07:58:27,087 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 842 transitions. Word has length 9
[2023-11-19 07:58:27,087 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:27,087 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 842 transitions.
[2023-11-19 07:58:27,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:27,088 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 842 transitions.
[2023-11-19 07:58:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-19 07:58:27,088 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:27,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:27,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:27,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:27,292 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:27,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:27,292 INFO L85 PathProgramCache]: Analyzing trace with hash 236364829, now seen corresponding path program 1 times
[2023-11-19 07:58:27,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:27,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196261970]
[2023-11-19 07:58:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:27,293 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 07:58:27,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:27,294 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:27,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (7)] Waiting until timeout for monitored process
[2023-11-19 07:58:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:27,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:58:27,432 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:27,441 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
[2023-11-19 07:58:27,475 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 07:58:27,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:27,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:27,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196261970]
[2023-11-19 07:58:27,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196261970] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:27,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:27,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:58:27,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566211232]
[2023-11-19 07:58:27,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:27,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:58:27,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:27,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:58:27,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:27,478 INFO L87 Difference]: Start difference. First operand 796 states and 842 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:30,047 INFO L93 Difference]: Finished difference Result 1076 states and 1145 transitions.
[2023-11-19 07:58:30,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:58:30,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2023-11-19 07:58:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:30,053 INFO L225 Difference]: With dead ends: 1076
[2023-11-19 07:58:30,053 INFO L226 Difference]: Without dead ends: 1076
[2023-11-19 07:58:30,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:30,055 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 492 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:30,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1163 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-11-19 07:58:30,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states.
[2023-11-19 07:58:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 818.
[2023-11-19 07:58:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 474 states have (on average 1.8818565400843883) internal successors, (892), 813 states have internal predecessors, (892), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:30,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 898 transitions.
[2023-11-19 07:58:30,078 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 898 transitions. Word has length 9
[2023-11-19 07:58:30,079 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:30,079 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 898 transitions.
[2023-11-19 07:58:30,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:30,079 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 898 transitions.
[2023-11-19 07:58:30,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-11-19 07:58:30,080 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:30,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:30,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (7)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:30,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:30,283 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr425ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:30,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:30,283 INFO L85 PathProgramCache]: Analyzing trace with hash 320814155, now seen corresponding path program 1 times
[2023-11-19 07:58:30,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:30,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8222843]
[2023-11-19 07:58:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:30,284 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 07:58:30,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:30,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:30,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (8)] Waiting until timeout for monitored process
[2023-11-19 07:58:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:30,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:58:30,485 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:30,597 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_44| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_44| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_44|) (_ bv0 1)))) is different from true
[2023-11-19 07:58:30,597 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 07:58:30,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:30,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:30,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8222843]
[2023-11-19 07:58:30,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8222843] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:30,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:30,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:30,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724131389]
[2023-11-19 07:58:30,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:30,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:30,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:30,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:30,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12
[2023-11-19 07:58:30,600 INFO L87 Difference]: Start difference. First operand 818 states and 898 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:32,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:32,332 INFO L93 Difference]: Finished difference Result 1026 states and 1126 transitions.
[2023-11-19 07:58:32,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:32,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2023-11-19 07:58:32,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:32,338 INFO L225 Difference]: With dead ends: 1026
[2023-11-19 07:58:32,338 INFO L226 Difference]: Without dead ends: 1024
[2023-11-19 07:58:32,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12
[2023-11-19 07:58:32,339 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 221 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1051 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:32,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1188 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 457 Invalid, 0 Unknown, 1051 Unchecked, 1.7s Time]
[2023-11-19 07:58:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states.
[2023-11-19 07:58:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 941.
[2023-11-19 07:58:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 597 states have (on average 1.8693467336683418) internal successors, (1116), 936 states have internal predecessors, (1116), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1122 transitions.
[2023-11-19 07:58:32,363 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1122 transitions. Word has length 11
[2023-11-19 07:58:32,363 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:32,363 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1122 transitions.
[2023-11-19 07:58:32,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1122 transitions.
[2023-11-19 07:58:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 07:58:32,364 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:32,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:32,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (8)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:32,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:32,573 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:32,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash 729190072, now seen corresponding path program 1 times
[2023-11-19 07:58:32,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:32,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69289902]
[2023-11-19 07:58:32,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:32,575 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 07:58:32,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:32,576 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:32,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (9)] Waiting until timeout for monitored process
[2023-11-19 07:58:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:32,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 07:58:32,725 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:32,734 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 07:58:32,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:32,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:32,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69289902]
[2023-11-19 07:58:32,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69289902] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:32,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:32,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:32,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450928244]
[2023-11-19 07:58:32,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:32,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:58:32,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:32,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:58:32,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:32,737 INFO L87 Difference]: Start difference. First operand 941 states and 1122 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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)
[2023-11-19 07:58:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:32,768 INFO L93 Difference]: Finished difference Result 881 states and 1036 transitions.
[2023-11-19 07:58:32,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:58:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14
[2023-11-19 07:58:32,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:32,773 INFO L225 Difference]: With dead ends: 881
[2023-11-19 07:58:32,773 INFO L226 Difference]: Without dead ends: 881
[2023-11-19 07:58:32,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 07:58:32,774 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 81 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:32,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1466 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:58:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states.
[2023-11-19 07:58:32,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881.
[2023-11-19 07:58:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 561 states have (on average 1.8360071301247771) internal successors, (1030), 876 states have internal predecessors, (1030), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1036 transitions.
[2023-11-19 07:58:32,798 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1036 transitions. Word has length 14
[2023-11-19 07:58:32,799 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:32,799 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1036 transitions.
[2023-11-19 07:58:32,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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)
[2023-11-19 07:58:32,799 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1036 transitions.
[2023-11-19 07:58:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-11-19 07:58:32,800 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:32,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:32,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (9)] Ended with exit code 0
[2023-11-19 07:58:33,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:33,004 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:33,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:33,004 INFO L85 PathProgramCache]: Analyzing trace with hash 672015314, now seen corresponding path program 1 times
[2023-11-19 07:58:33,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:33,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716357456]
[2023-11-19 07:58:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:33,005 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 07:58:33,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:33,006 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:33,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (10)] Waiting until timeout for monitored process
[2023-11-19 07:58:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:33,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:58:33,153 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:33,177 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 07:58:33,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:33,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:33,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716357456]
[2023-11-19 07:58:33,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716357456] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:33,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:33,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:58:33,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255709681]
[2023-11-19 07:58:33,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:33,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:33,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:33,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:33,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:33,181 INFO L87 Difference]: Start difference. First operand 881 states and 1036 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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)
[2023-11-19 07:58:33,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:33,277 INFO L93 Difference]: Finished difference Result 853 states and 980 transitions.
[2023-11-19 07:58:33,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:33,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16
[2023-11-19 07:58:33,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:33,283 INFO L225 Difference]: With dead ends: 853
[2023-11-19 07:58:33,283 INFO L226 Difference]: Without dead ends: 853
[2023-11-19 07:58:33,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:33,286 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 62 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:33,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2138 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:58:33,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states.
[2023-11-19 07:58:33,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 851.
[2023-11-19 07:58:33,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 545 states have (on average 1.7834862385321102) internal successors, (972), 846 states have internal predecessors, (972), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 978 transitions.
[2023-11-19 07:58:33,307 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 978 transitions. Word has length 16
[2023-11-19 07:58:33,307 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:33,308 INFO L495 AbstractCegarLoop]: Abstraction has 851 states and 978 transitions.
[2023-11-19 07:58:33,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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)
[2023-11-19 07:58:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 978 transitions.
[2023-11-19 07:58:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2023-11-19 07:58:33,309 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:33,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:33,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (10)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:33,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:33,512 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:33,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1783704328, now seen corresponding path program 1 times
[2023-11-19 07:58:33,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:33,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495898558]
[2023-11-19 07:58:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:33,513 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 07:58:33,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:33,514 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:33,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (11)] Waiting until timeout for monitored process
[2023-11-19 07:58:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:33,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 07:58:33,692 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:33,701 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 07:58:33,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:33,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:33,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495898558]
[2023-11-19 07:58:33,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495898558] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:33,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:33,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:33,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478738979]
[2023-11-19 07:58:33,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:33,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:58:33,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:33,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:58:33,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:33,703 INFO L87 Difference]: Start difference. First operand 851 states and 978 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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)
[2023-11-19 07:58:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:33,730 INFO L93 Difference]: Finished difference Result 809 states and 935 transitions.
[2023-11-19 07:58:33,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:58:33,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19
[2023-11-19 07:58:33,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:33,734 INFO L225 Difference]: With dead ends: 809
[2023-11-19 07:58:33,735 INFO L226 Difference]: Without dead ends: 809
[2023-11-19 07:58:33,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 07:58:33,736 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 81 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:33,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1310 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:58:33,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states.
[2023-11-19 07:58:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809.
[2023-11-19 07:58:33,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 527 states have (on average 1.76280834914611) internal successors, (929), 804 states have internal predecessors, (929), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:33,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 935 transitions.
[2023-11-19 07:58:33,754 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 935 transitions. Word has length 19
[2023-11-19 07:58:33,754 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:33,755 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 935 transitions.
[2023-11-19 07:58:33,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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)
[2023-11-19 07:58:33,755 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 935 transitions.
[2023-11-19 07:58:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2023-11-19 07:58:33,756 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:33,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:33,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (11)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:33,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:33,960 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:33,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:33,961 INFO L85 PathProgramCache]: Analyzing trace with hash 447904642, now seen corresponding path program 1 times
[2023-11-19 07:58:33,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:33,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073902232]
[2023-11-19 07:58:33,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:33,962 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 07:58:33,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:33,962 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:33,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (12)] Waiting until timeout for monitored process
[2023-11-19 07:58:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:34,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:58:34,176 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:34,207 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 07:58:34,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:34,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:34,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073902232]
[2023-11-19 07:58:34,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073902232] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:34,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:34,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:58:34,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30166482]
[2023-11-19 07:58:34,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:34,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:34,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:34,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:34,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:34,209 INFO L87 Difference]: Start difference. First operand 809 states and 935 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:34,312 INFO L93 Difference]: Finished difference Result 788 states and 907 transitions.
[2023-11-19 07:58:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:34,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2023-11-19 07:58:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:34,317 INFO L225 Difference]: With dead ends: 788
[2023-11-19 07:58:34,317 INFO L226 Difference]: Without dead ends: 788
[2023-11-19 07:58:34,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:34,318 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 62 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:34,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1904 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:58:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states.
[2023-11-19 07:58:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 787.
[2023-11-19 07:58:34,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 519 states have (on average 1.7341040462427746) internal successors, (900), 782 states have internal predecessors, (900), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 906 transitions.
[2023-11-19 07:58:34,337 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 906 transitions. Word has length 21
[2023-11-19 07:58:34,338 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:34,339 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 906 transitions.
[2023-11-19 07:58:34,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:58:34,339 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 906 transitions.
[2023-11-19 07:58:34,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2023-11-19 07:58:34,345 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:34,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:34,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (12)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:34,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:34,550 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr378REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:34,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:34,550 INFO L85 PathProgramCache]: Analyzing trace with hash -304556672, now seen corresponding path program 1 times
[2023-11-19 07:58:34,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:34,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812899828]
[2023-11-19 07:58:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:34,551 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 07:58:34,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:34,552 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:34,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (13)] Waiting until timeout for monitored process
[2023-11-19 07:58:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:34,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:58:34,708 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:34,717 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
[2023-11-19 07:58:34,823 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 07:58:34,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:34,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:34,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812899828]
[2023-11-19 07:58:34,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812899828] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:34,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:34,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:34,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275335239]
[2023-11-19 07:58:34,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:34,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:34,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:34,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:34,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:34,825 INFO L87 Difference]: Start difference. First operand 787 states and 906 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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)
[2023-11-19 07:58:36,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:36,601 INFO L93 Difference]: Finished difference Result 783 states and 898 transitions.
[2023-11-19 07:58:36,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:36,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30
[2023-11-19 07:58:36,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:36,606 INFO L225 Difference]: With dead ends: 783
[2023-11-19 07:58:36,606 INFO L226 Difference]: Without dead ends: 783
[2023-11-19 07:58:36,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:36,607 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 590 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:36,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 783 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-11-19 07:58:36,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states.
[2023-11-19 07:58:36,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783.
[2023-11-19 07:58:36,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 519 states have (on average 1.71868978805395) internal successors, (892), 778 states have internal predecessors, (892), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:36,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 898 transitions.
[2023-11-19 07:58:36,626 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 898 transitions. Word has length 30
[2023-11-19 07:58:36,626 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:36,626 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 898 transitions.
[2023-11-19 07:58:36,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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)
[2023-11-19 07:58:36,626 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 898 transitions.
[2023-11-19 07:58:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2023-11-19 07:58:36,627 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:36,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:36,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (13)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:36,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:36,830 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr379REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:36,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:36,831 INFO L85 PathProgramCache]: Analyzing trace with hash -304556671, now seen corresponding path program 1 times
[2023-11-19 07:58:36,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:36,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489952410]
[2023-11-19 07:58:36,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:36,832 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 07:58:36,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:36,833 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:36,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (14)] Waiting until timeout for monitored process
[2023-11-19 07:58:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:36,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:58:36,991 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:37,006 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
[2023-11-19 07:58:37,250 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 07:58:37,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:37,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:37,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489952410]
[2023-11-19 07:58:37,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489952410] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:37,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:37,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:37,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935670786]
[2023-11-19 07:58:37,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:37,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:37,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:37,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:37,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:37,252 INFO L87 Difference]: Start difference. First operand 783 states and 898 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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)
[2023-11-19 07:58:39,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:39,685 INFO L93 Difference]: Finished difference Result 820 states and 896 transitions.
[2023-11-19 07:58:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:39,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30
[2023-11-19 07:58:39,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:39,689 INFO L225 Difference]: With dead ends: 820
[2023-11-19 07:58:39,689 INFO L226 Difference]: Without dead ends: 820
[2023-11-19 07:58:39,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:39,690 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 153 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:39,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1292 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-11-19 07:58:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states.
[2023-11-19 07:58:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 783.
[2023-11-19 07:58:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 519 states have (on average 1.7109826589595376) internal successors, (888), 778 states have internal predecessors, (888), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:39,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 894 transitions.
[2023-11-19 07:58:39,711 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 894 transitions. Word has length 30
[2023-11-19 07:58:39,712 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:39,712 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 894 transitions.
[2023-11-19 07:58:39,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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)
[2023-11-19 07:58:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 894 transitions.
[2023-11-19 07:58:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2023-11-19 07:58:39,714 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:39,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:39,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (14)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:39,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:39,921 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:39,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:39,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1381258032, now seen corresponding path program 1 times
[2023-11-19 07:58:39,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:39,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122249942]
[2023-11-19 07:58:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:39,922 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 07:58:39,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:39,924 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:39,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (15)] Waiting until timeout for monitored process
[2023-11-19 07:58:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:40,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:58:40,140 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:40,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2023-11-19 07:58:40,252 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 07:58:40,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:40,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:40,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122249942]
[2023-11-19 07:58:40,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122249942] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:40,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:40,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:40,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990526501]
[2023-11-19 07:58:40,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:40,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:40,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:40,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:40,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:40,255 INFO L87 Difference]: Start difference. First operand 783 states and 894 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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)
[2023-11-19 07:58:42,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:42,333 INFO L93 Difference]: Finished difference Result 921 states and 1045 transitions.
[2023-11-19 07:58:42,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:42,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 35
[2023-11-19 07:58:42,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:42,338 INFO L225 Difference]: With dead ends: 921
[2023-11-19 07:58:42,338 INFO L226 Difference]: Without dead ends: 921
[2023-11-19 07:58:42,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:42,339 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 646 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:42,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 981 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2023-11-19 07:58:42,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states.
[2023-11-19 07:58:42,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 779.
[2023-11-19 07:58:42,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 519 states have (on average 1.7032755298651252) internal successors, (884), 774 states have internal predecessors, (884), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 890 transitions.
[2023-11-19 07:58:42,357 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 890 transitions. Word has length 35
[2023-11-19 07:58:42,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:42,357 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 890 transitions.
[2023-11-19 07:58:42,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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)
[2023-11-19 07:58:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 890 transitions.
[2023-11-19 07:58:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2023-11-19 07:58:42,359 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:42,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:42,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (15)] Ended with exit code 0
[2023-11-19 07:58:42,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:42,562 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:42,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:42,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1381258031, now seen corresponding path program 1 times
[2023-11-19 07:58:42,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:42,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195016478]
[2023-11-19 07:58:42,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:42,563 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 07:58:42,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:42,566 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:42,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (16)] Waiting until timeout for monitored process
[2023-11-19 07:58:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:42,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:58:42,745 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:42,750 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
[2023-11-19 07:58:42,989 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 07:58:42,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:42,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:42,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195016478]
[2023-11-19 07:58:42,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195016478] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:42,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:42,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:42,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871781433]
[2023-11-19 07:58:42,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:42,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:42,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:42,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:42,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:42,992 INFO L87 Difference]: Start difference. First operand 779 states and 890 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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)
[2023-11-19 07:58:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:45,658 INFO L93 Difference]: Finished difference Result 965 states and 1057 transitions.
[2023-11-19 07:58:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 35
[2023-11-19 07:58:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:45,663 INFO L225 Difference]: With dead ends: 965
[2023-11-19 07:58:45,663 INFO L226 Difference]: Without dead ends: 965
[2023-11-19 07:58:45,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:45,664 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 337 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:45,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1337 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-11-19 07:58:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states.
[2023-11-19 07:58:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 775.
[2023-11-19 07:58:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 519 states have (on average 1.6955684007707128) internal successors, (880), 770 states have internal predecessors, (880), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 886 transitions.
[2023-11-19 07:58:45,682 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 886 transitions. Word has length 35
[2023-11-19 07:58:45,683 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:45,683 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 886 transitions.
[2023-11-19 07:58:45,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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)
[2023-11-19 07:58:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 886 transitions.
[2023-11-19 07:58:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2023-11-19 07:58:45,684 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:45,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:45,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (16)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:45,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:45,888 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr386REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:45,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1747718074, now seen corresponding path program 1 times
[2023-11-19 07:58:45,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:45,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136203005]
[2023-11-19 07:58:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:45,889 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 07:58:45,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:45,890 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:45,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (17)] Waiting until timeout for monitored process
[2023-11-19 07:58:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:46,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:58:46,085 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:46,161 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 07:58:46,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:46,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:46,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136203005]
[2023-11-19 07:58:46,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136203005] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:46,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:46,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:58:46,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158873520]
[2023-11-19 07:58:46,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:46,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:46,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:46,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:46,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:46,163 INFO L87 Difference]: Start difference. First operand 775 states and 886 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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)
[2023-11-19 07:58:46,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:46,242 INFO L93 Difference]: Finished difference Result 763 states and 866 transitions.
[2023-11-19 07:58:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44
[2023-11-19 07:58:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:46,247 INFO L225 Difference]: With dead ends: 763
[2023-11-19 07:58:46,247 INFO L226 Difference]: Without dead ends: 763
[2023-11-19 07:58:46,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:46,248 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 39 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:46,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1862 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:58:46,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states.
[2023-11-19 07:58:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763.
[2023-11-19 07:58:46,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 507 states have (on average 1.6962524654832347) internal successors, (860), 758 states have internal predecessors, (860), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:46,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 866 transitions.
[2023-11-19 07:58:46,266 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 866 transitions. Word has length 44
[2023-11-19 07:58:46,266 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:46,266 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 866 transitions.
[2023-11-19 07:58:46,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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)
[2023-11-19 07:58:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 866 transitions.
[2023-11-19 07:58:46,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2023-11-19 07:58:46,267 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:46,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:46,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (17)] Ended with exit code 0
[2023-11-19 07:58:46,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:46,481 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:46,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2074298550, now seen corresponding path program 1 times
[2023-11-19 07:58:46,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:46,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637415431]
[2023-11-19 07:58:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:46,482 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 07:58:46,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:46,483 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:46,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (18)] Waiting until timeout for monitored process
[2023-11-19 07:58:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:46,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:58:46,738 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:46,796 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 07:58:46,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:46,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:46,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637415431]
[2023-11-19 07:58:46,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637415431] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:46,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:46,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:58:46,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300222105]
[2023-11-19 07:58:46,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:46,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:46,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:46,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:46,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:46,798 INFO L87 Difference]: Start difference. First operand 763 states and 866 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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)
[2023-11-19 07:58:46,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:46,861 INFO L93 Difference]: Finished difference Result 757 states and 856 transitions.
[2023-11-19 07:58:46,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:46,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 51
[2023-11-19 07:58:46,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:46,865 INFO L225 Difference]: With dead ends: 757
[2023-11-19 07:58:46,865 INFO L226 Difference]: Without dead ends: 757
[2023-11-19 07:58:46,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:46,866 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 31 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:46,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1858 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:58:46,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states.
[2023-11-19 07:58:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 757.
[2023-11-19 07:58:46,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 501 states have (on average 1.6966067864271457) internal successors, (850), 752 states have internal predecessors, (850), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 856 transitions.
[2023-11-19 07:58:46,890 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 856 transitions. Word has length 51
[2023-11-19 07:58:46,891 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:46,891 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 856 transitions.
[2023-11-19 07:58:46,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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)
[2023-11-19 07:58:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 856 transitions.
[2023-11-19 07:58:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2023-11-19 07:58:46,892 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:46,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:46,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (18)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:47,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:47,098 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr386REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:47,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash -852604154, now seen corresponding path program 1 times
[2023-11-19 07:58:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:47,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202159994]
[2023-11-19 07:58:47,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:47,099 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 07:58:47,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:47,100 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:47,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (19)] Waiting until timeout for monitored process
[2023-11-19 07:58:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:47,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:58:47,276 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:47,613 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 07:58:47,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:47,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:47,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202159994]
[2023-11-19 07:58:47,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202159994] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:47,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:47,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:47,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170106582]
[2023-11-19 07:58:47,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:47,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:58:47,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:47,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:58:47,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:58:47,615 INFO L87 Difference]: Start difference. First operand 757 states and 856 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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)
[2023-11-19 07:58:47,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:47,759 INFO L93 Difference]: Finished difference Result 837 states and 895 transitions.
[2023-11-19 07:58:47,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:58:47,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52
[2023-11-19 07:58:47,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:47,763 INFO L225 Difference]: With dead ends: 837
[2023-11-19 07:58:47,763 INFO L226 Difference]: Without dead ends: 837
[2023-11-19 07:58:47,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 07:58:47,764 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 139 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:47,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1186 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:58:47,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states.
[2023-11-19 07:58:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 827.
[2023-11-19 07:58:47,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 571 states have (on average 1.5499124343257442) internal successors, (885), 822 states have internal predecessors, (885), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:47,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 891 transitions.
[2023-11-19 07:58:47,780 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 891 transitions. Word has length 52
[2023-11-19 07:58:47,781 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:47,781 INFO L495 AbstractCegarLoop]: Abstraction has 827 states and 891 transitions.
[2023-11-19 07:58:47,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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)
[2023-11-19 07:58:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 891 transitions.
[2023-11-19 07:58:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2023-11-19 07:58:47,782 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:47,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:47,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (19)] Ended with exit code 0
[2023-11-19 07:58:47,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:47,986 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr420ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:47,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:47,987 INFO L85 PathProgramCache]: Analyzing trace with hash 275460493, now seen corresponding path program 1 times
[2023-11-19 07:58:47,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:47,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811097774]
[2023-11-19 07:58:47,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:47,988 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 07:58:47,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:47,989 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:47,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (20)] Waiting until timeout for monitored process
[2023-11-19 07:58:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:48,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-11-19 07:58:48,256 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:48,273 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:58:48,274 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:58:48,275 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:58:48,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39
[2023-11-19 07:58:48,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-19 07:58:48,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26
[2023-11-19 07:58:48,423 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 07:58:48,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:48,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:48,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811097774]
[2023-11-19 07:58:48,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811097774] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:48,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:48,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-19 07:58:48,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756932701]
[2023-11-19 07:58:48,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:48,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:58:48,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:48,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:58:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:58:48,426 INFO L87 Difference]: Start difference. First operand 827 states and 891 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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)
[2023-11-19 07:58:49,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:49,606 INFO L93 Difference]: Finished difference Result 913 states and 984 transitions.
[2023-11-19 07:58:49,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:58:49,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 58
[2023-11-19 07:58:49,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:49,611 INFO L225 Difference]: With dead ends: 913
[2023-11-19 07:58:49,611 INFO L226 Difference]: Without dead ends: 910
[2023-11-19 07:58:49,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-11-19 07:58:49,612 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 776 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:49,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 2410 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-11-19 07:58:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states.
[2023-11-19 07:58:49,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 773.
[2023-11-19 07:58:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 517 states have (on average 1.6034816247582204) internal successors, (829), 768 states have internal predecessors, (829), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 835 transitions.
[2023-11-19 07:58:49,626 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 835 transitions. Word has length 58
[2023-11-19 07:58:49,626 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:49,626 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 835 transitions.
[2023-11-19 07:58:49,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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)
[2023-11-19 07:58:49,627 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 835 transitions.
[2023-11-19 07:58:49,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2023-11-19 07:58:49,627 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:49,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:49,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (20)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:49,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:49,832 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:49,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:49,833 INFO L85 PathProgramCache]: Analyzing trace with hash -705102378, now seen corresponding path program 1 times
[2023-11-19 07:58:49,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:49,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910728567]
[2023-11-19 07:58:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:49,834 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 07:58:49,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:49,835 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:49,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (21)] Waiting until timeout for monitored process
[2023-11-19 07:58:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:50,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-19 07:58:50,240 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:50,250 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
[2023-11-19 07:58:50,257 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
[2023-11-19 07:58:50,888 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:58:50,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2023-11-19 07:58:50,907 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2023-11-19 07:58:50,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2023-11-19 07:58:50,920 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 07:58:50,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:50,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:50,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910728567]
[2023-11-19 07:58:50,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910728567] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:50,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:50,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:50,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119465317]
[2023-11-19 07:58:50,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:50,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:50,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:50,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:50,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:50,923 INFO L87 Difference]: Start difference. First operand 773 states and 835 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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)
[2023-11-19 07:58:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:58:52,894 INFO L93 Difference]: Finished difference Result 924 states and 1001 transitions.
[2023-11-19 07:58:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:52,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 62
[2023-11-19 07:58:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:58:52,898 INFO L225 Difference]: With dead ends: 924
[2023-11-19 07:58:52,899 INFO L226 Difference]: Without dead ends: 924
[2023-11-19 07:58:52,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 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 07:58:52,899 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1216 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-11-19 07:58:52,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 314 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-11-19 07:58:52,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states.
[2023-11-19 07:58:52,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 703.
[2023-11-19 07:58:52,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 485 states have (on average 1.4948453608247423) internal successors, (725), 698 states have internal predecessors, (725), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-19 07:58:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 731 transitions.
[2023-11-19 07:58:52,915 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 731 transitions. Word has length 62
[2023-11-19 07:58:52,916 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:58:52,916 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 731 transitions.
[2023-11-19 07:58:52,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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)
[2023-11-19 07:58:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 731 transitions.
[2023-11-19 07:58:52,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2023-11-19 07:58:52,917 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:58:52,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:52,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (21)] Forceful destruction successful, exit code 0
[2023-11-19 07:58:53,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:53,124 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] ===
[2023-11-19 07:58:53,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:53,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1514729194, now seen corresponding path program 1 times
[2023-11-19 07:58:53,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:58:53,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505470094]
[2023-11-19 07:58:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:53,125 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 07:58:53,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:58:53,126 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 07:58:53,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0bd3b4-f4fa-4a33-a16c-7b9058a5f55e/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 (22)] Waiting until timeout for monitored process
[2023-11-19 07:58:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:53,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-11-19 07:58:53,485 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:58:53,496 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
[2023-11-19 07:58:53,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-11-19 07:58:53,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2023-11-19 07:58:53,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9
[2023-11-19 07:58:53,640 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 07:58:53,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:58:53,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:58:53,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505470094]
[2023-11-19 07:58:53,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505470094] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:53,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:53,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:58:53,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150318797]
[2023-11-19 07:58:53,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:53,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:58:53,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:58:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:58:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:58:53,643 INFO L87 Difference]: Start difference. First operand 703 states and 731 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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)