./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/list1.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_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/list1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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_344394d6-7d14-4bf7-b9dd-473d81d07603/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 1da30149a66945688e686f90b0d1749d09e30bdcfdeae7b4325d99ddbe3a8206
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:54:43,252 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:54:43,322 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-11-19 07:54:43,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:54:43,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:54:43,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:54:43,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:54:43,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:54:43,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:54:43,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:54:43,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:54:43,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:54:43,361 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:54:43,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:54:43,362 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:54:43,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:54:43,364 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:54:43,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:54:43,365 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:54:43,366 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:54:43,367 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:54:43,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:54:43,368 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:54:43,369 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:54:43,369 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:54:43,370 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:54:43,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:54:43,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:54:43,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:54:43,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:54:43,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:54:43,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:54:43,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:54:43,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:54:43,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:54:43,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:54:43,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:54:43,377 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:54:43,378 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_344394d6-7d14-4bf7-b9dd-473d81d07603/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1da30149a66945688e686f90b0d1749d09e30bdcfdeae7b4325d99ddbe3a8206
[2023-11-19 07:54:43,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:54:43,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:54:43,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:54:43,679 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:54:43,680 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:54:43,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-memsafety/list1.i
[2023-11-19 07:54:46,925 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:54:47,292 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:54:47,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/sv-benchmarks/c/pthread-memsafety/list1.i
[2023-11-19 07:54:47,328 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/data/3d8486ceb/3743a674f052406e8b21809c52620479/FLAG7289ceaef
[2023-11-19 07:54:47,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/data/3d8486ceb/3743a674f052406e8b21809c52620479
[2023-11-19 07:54:47,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:54:47,355 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:54:47,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:54:47,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:54:47,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:54:47,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:47" (1/1) ...
[2023-11-19 07:54:47,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f30a702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:47, skipping insertion in model container
[2023-11-19 07:54:47,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:47" (1/1) ...
[2023-11-19 07:54:47,438 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:54:47,933 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:54:47,946 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 07:54:47,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5399cf4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:47, skipping insertion in model container
[2023-11-19 07:54:47,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:54:47,947 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2023-11-19 07:54:47,949 INFO L158 Benchmark]: Toolchain (without parser) took 593.34ms. Allocated memory is still 151.0MB. Free memory was 122.0MB in the beginning and 107.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 07:54:47,950 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:54:47,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.66ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 107.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 07:54:47,952 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 590.66ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 107.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 1048]: 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_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/list1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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_344394d6-7d14-4bf7-b9dd-473d81d07603/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 1da30149a66945688e686f90b0d1749d09e30bdcfdeae7b4325d99ddbe3a8206
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:54:50,440 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:54:50,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2023-11-19 07:54:50,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:54:50,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:54:50,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:54:50,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:54:50,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:54:50,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:54:50,646 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:54:50,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:54:50,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:54:50,647 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:54:50,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:54:50,650 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:54:50,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:54:50,650 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:54:50,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:54:50,651 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:54:50,652 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:54:50,653 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:54:50,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:54:50,654 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:54:50,654 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 07:54:50,654 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:54:50,655 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:54:50,655 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:54:50,656 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:54:50,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:54:50,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:54:50,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:54:50,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:54:50,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:54:50,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:54:50,659 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 07:54:50,660 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:54:50,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:54:50,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:54:50,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:54:50,661 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 07:54:50,662 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:54:50,662 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_344394d6-7d14-4bf7-b9dd-473d81d07603/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1da30149a66945688e686f90b0d1749d09e30bdcfdeae7b4325d99ddbe3a8206
[2023-11-19 07:54:51,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:54:51,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:54:51,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:54:51,077 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:54:51,078 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:54:51,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-memsafety/list1.i
[2023-11-19 07:54:54,261 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:54:54,598 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:54:54,599 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/sv-benchmarks/c/pthread-memsafety/list1.i
[2023-11-19 07:54:54,630 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/data/ee7ed7d91/80ff5709a8544437a239c9e54aec081b/FLAGb39bc241c
[2023-11-19 07:54:54,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/data/ee7ed7d91/80ff5709a8544437a239c9e54aec081b
[2023-11-19 07:54:54,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:54:54,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:54:54,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:54:54,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:54:54,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:54:54,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:54" (1/1) ...
[2023-11-19 07:54:54,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6f8a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54, skipping insertion in model container
[2023-11-19 07:54:54,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:54" (1/1) ...
[2023-11-19 07:54:54,749 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:54:55,447 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:54:55,469 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2023-11-19 07:54:55,512 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:54:55,567 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:54:55,577 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:54:55,635 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:54:55,737 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:54:55,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55 WrapperNode
[2023-11-19 07:54:55,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:54:55,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:54:55,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:54:55,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:54:55,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,826 INFO L138 Inliner]: procedures = 267, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74
[2023-11-19 07:54:55,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:54:55,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:54:55,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:54:55,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:54:55,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:54:55,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:54:55,903 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:54:55,903 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:54:55,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (1/1) ...
[2023-11-19 07:54:55,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:54:55,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:54:55,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:54:55,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:54:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-19 07:54:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:54:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 07:54:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-19 07:54:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:54:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-11-19 07:54:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 07:54:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-19 07:54:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure delete
[2023-11-19 07:54:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure delete
[2023-11-19 07:54:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure build
[2023-11-19 07:54:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure build
[2023-11-19 07:54:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:54:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:54:56,003 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-19 07:54:56,245 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:54:56,248 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:54:56,777 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:54:56,790 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:54:56,790 INFO L302 CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-19 07:54:56,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:56 BoogieIcfgContainer
[2023-11-19 07:54:56,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:54:56,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:54:56,802 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:54:56,806 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:54:56,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:54" (1/3) ...
[2023-11-19 07:54:56,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b7222c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:56, skipping insertion in model container
[2023-11-19 07:54:56,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55" (2/3) ...
[2023-11-19 07:54:56,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b7222c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:56, skipping insertion in model container
[2023-11-19 07:54:56,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:56" (3/3) ...
[2023-11-19 07:54:56,810 INFO L112 eAbstractionObserver]: Analyzing ICFG list1.i
[2023-11-19 07:54:56,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:54:56,834 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations.
[2023-11-19 07:54:56,834 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:54:57,073 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-11-19 07:54:57,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 151 transitions, 316 flow
[2023-11-19 07:54:57,250 INFO L124 PetriNetUnfolderBase]: 6/149 cut-off events.
[2023-11-19 07:54:57,250 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:54:57,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 149 events. 6/149 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 390 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 84. Up to 3 conditions per place.
[2023-11-19 07:54:57,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 151 transitions, 316 flow
[2023-11-19 07:54:57,264 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 143 transitions, 298 flow
[2023-11-19 07:54:57,269 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:54:57,280 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 143 transitions, 298 flow
[2023-11-19 07:54:57,284 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 143 transitions, 298 flow
[2023-11-19 07:54:57,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 143 transitions, 298 flow
[2023-11-19 07:54:57,343 INFO L124 PetriNetUnfolderBase]: 6/143 cut-off events.
[2023-11-19 07:54:57,349 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:54:57,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 143 events. 6/143 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 389 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 84. Up to 3 conditions per place.
[2023-11-19 07:54:57,353 INFO L119 LiptonReduction]: Number of co-enabled transitions 990
[2023-11-19 07:55:35,907 INFO L134 LiptonReduction]: Checked pairs total: 1608
[2023-11-19 07:55:35,907 INFO L136 LiptonReduction]: Total number of compositions: 176
[2023-11-19 07:55:35,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:55:35,933 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;@51ee9fec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:55:35,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 69 error locations.
[2023-11-19 07:55:35,935 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:55:35,935 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events.
[2023-11-19 07:55:35,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:55:35,936 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:55:35,936 INFO L208 CegarLoopForPetriNet]: trace histogram [1]
[2023-11-19 07:55:35,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [buildErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 66 more)] ===
[2023-11-19 07:55:35,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:55:35,943 INFO L85 PathProgramCache]: Analyzing trace with hash 629, now seen corresponding path program 1 times
[2023-11-19 07:55:35,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:55:35,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094938188]
[2023-11-19 07:55:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:55:35,959 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 07:55:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:55:35,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:35,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:55:36,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-19 07:55:36,080 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:55:36,085 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 07:55:36,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:55:36,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:55:36,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094938188]
[2023-11-19 07:55:36,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094938188] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:55:36,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:55:36,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2023-11-19 07:55:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078841001]
[2023-11-19 07:55:36,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:55:36,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:55:36,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:55:36,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:55:36,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:55:36,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 327
[2023-11-19 07:55:36,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 60 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 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 07:55:36,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:55:36,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 327
[2023-11-19 07:55:36,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:55:36,456 INFO L124 PetriNetUnfolderBase]: 100/235 cut-off events.
[2023-11-19 07:55:36,456 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:55:36,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 235 events. 100/235 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 976 event pairs, 84 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 261. Up to 228 conditions per place.
[2023-11-19 07:55:36,461 INFO L140 encePairwiseOnDemand]: 316/327 looper letters, 47 selfloop transitions, 0 changer transitions 0/49 dead transitions.
[2023-11-19 07:55:36,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 49 transitions, 204 flow
[2023-11-19 07:55:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:55:36,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 07:55:36,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 348 transitions.
[2023-11-19 07:55:36,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5321100917431193
[2023-11-19 07:55:36,484 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 348 transitions.
[2023-11-19 07:55:36,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 348 transitions.
[2023-11-19 07:55:36,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:55:36,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 348 transitions.
[2023-11-19 07:55:36,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 174.0) internal successors, (348), 2 states have internal predecessors, (348), 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 07:55:36,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 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 07:55:36,520 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 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 07:55:36,522 INFO L175 Difference]: Start difference. First operand has 62 places, 60 transitions, 132 flow. Second operand 2 states and 348 transitions.
[2023-11-19 07:55:36,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 49 transitions, 204 flow
[2023-11-19 07:55:36,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 49 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-11-19 07:55:36,529 INFO L231 Difference]: Finished difference. Result has 49 places, 49 transitions, 102 flow
[2023-11-19 07:55:36,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=102, PETRI_PLACES=49, PETRI_TRANSITIONS=49}
[2023-11-19 07:55:36,536 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -13 predicate places.
[2023-11-19 07:55:36,537 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 49 transitions, 102 flow
[2023-11-19 07:55:36,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 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 07:55:36,537 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:55:36,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-11-19 07:55:36,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-11-19 07:55:36,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:36,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [buildErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 66 more)] ===
[2023-11-19 07:55:36,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:55:36,742 INFO L85 PathProgramCache]: Analyzing trace with hash 617309, now seen corresponding path program 1 times
[2023-11-19 07:55:36,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:55:36,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808312044]
[2023-11-19 07:55:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:55:36,743 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 07:55:36,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:55:36,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:36,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:55:36,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:55:36,926 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:55:37,015 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2023-11-19 07:55:37,017 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 1 case distinctions, treesize of input 9 treesize of output 15
[2023-11-19 07:55:37,059 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 07:55:37,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:55:37,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:55:37,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808312044]
[2023-11-19 07:55:37,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808312044] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:55:37,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:55:37,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:55:37,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671529155]
[2023-11-19 07:55:37,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:55:37,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:55:37,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:55:37,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:55:37,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:55:37,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 327
[2023-11-19 07:55:37,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 49 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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 07:55:37,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:55:37,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 327
[2023-11-19 07:55:37,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:55:37,961 INFO L124 PetriNetUnfolderBase]: 105/250 cut-off events.
[2023-11-19 07:55:37,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:55:37,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 250 events. 105/250 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1078 event pairs, 60 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 496. Up to 163 conditions per place.
[2023-11-19 07:55:37,970 INFO L140 encePairwiseOnDemand]: 319/327 looper letters, 50 selfloop transitions, 7 changer transitions 0/59 dead transitions.
[2023-11-19 07:55:37,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 59 transitions, 237 flow
[2023-11-19 07:55:37,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:55:37,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:55:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions.
[2023-11-19 07:55:37,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46279306829765543
[2023-11-19 07:55:37,989 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions.
[2023-11-19 07:55:37,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions.
[2023-11-19 07:55:37,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:55:37,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions.
[2023-11-19 07:55:37,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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 07:55:38,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 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 07:55:38,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 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 07:55:38,004 INFO L175 Difference]: Start difference. First operand has 49 places, 49 transitions, 102 flow. Second operand 3 states and 454 transitions.
[2023-11-19 07:55:38,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 59 transitions, 237 flow
[2023-11-19 07:55:38,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 237 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:55:38,008 INFO L231 Difference]: Finished difference. Result has 51 places, 50 transitions, 129 flow
[2023-11-19 07:55:38,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=51, PETRI_TRANSITIONS=50}
[2023-11-19 07:55:38,010 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -11 predicate places.
[2023-11-19 07:55:38,010 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 50 transitions, 129 flow
[2023-11-19 07:55:38,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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 07:55:38,011 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:55:38,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-11-19 07:55:38,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:38,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:38,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [buildErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 66 more)] ===
[2023-11-19 07:55:38,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:55:38,218 INFO L85 PathProgramCache]: Analyzing trace with hash 617310, now seen corresponding path program 1 times
[2023-11-19 07:55:38,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:55:38,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767860690]
[2023-11-19 07:55:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:55:38,219 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 07:55:38,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:55:38,229 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:38,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:55:38,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:55:38,379 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:55:38,401 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:55:38,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5
[2023-11-19 07:55:38,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8
[2023-11-19 07:55:38,460 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 07:55:38,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:55:38,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:55:38,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767860690]
[2023-11-19 07:55:38,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767860690] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:55:38,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:55:38,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:55:38,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633907878]
[2023-11-19 07:55:38,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:55:38,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:55:38,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:55:38,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:55:38,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:55:38,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 327
[2023-11-19 07:55:38,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 07:55:38,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:55:38,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 327
[2023-11-19 07:55:38,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:55:39,198 INFO L124 PetriNetUnfolderBase]: 109/255 cut-off events.
[2023-11-19 07:55:39,198 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2023-11-19 07:55:39,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 255 events. 109/255 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1085 event pairs, 76 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 554. Up to 244 conditions per place.
[2023-11-19 07:55:39,202 INFO L140 encePairwiseOnDemand]: 322/327 looper letters, 48 selfloop transitions, 4 changer transitions 0/54 dead transitions.
[2023-11-19 07:55:39,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 54 transitions, 241 flow
[2023-11-19 07:55:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:55:39,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:55:39,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions.
[2023-11-19 07:55:39,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4709480122324159
[2023-11-19 07:55:39,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions.
[2023-11-19 07:55:39,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions.
[2023-11-19 07:55:39,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:55:39,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions.
[2023-11-19 07:55:39,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 07:55:39,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 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 07:55:39,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 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 07:55:39,214 INFO L175 Difference]: Start difference. First operand has 51 places, 50 transitions, 129 flow. Second operand 3 states and 462 transitions.
[2023-11-19 07:55:39,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 54 transitions, 241 flow
[2023-11-19 07:55:39,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 54 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:55:39,219 INFO L231 Difference]: Finished difference. Result has 53 places, 53 transitions, 148 flow
[2023-11-19 07:55:39,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=53, PETRI_TRANSITIONS=53}
[2023-11-19 07:55:39,222 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -9 predicate places.
[2023-11-19 07:55:39,222 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 53 transitions, 148 flow
[2023-11-19 07:55:39,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 07:55:39,223 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:55:39,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:55:39,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:55:39,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:39,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting buildErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [buildErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 66 more)] ===
[2023-11-19 07:55:39,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:55:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash 19136266, now seen corresponding path program 1 times
[2023-11-19 07:55:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:55:39,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239255064]
[2023-11-19 07:55:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:55:39,429 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 07:55:39,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:55:39,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:39,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:55:39,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-11-19 07:55:39,564 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:55:39,577 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 07:55:39,593 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 07:55:39,616 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 07:55:39,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:55:39,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:55:39,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239255064]
[2023-11-19 07:55:39,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239255064] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:55:39,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:55:39,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:55:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789274526]
[2023-11-19 07:55:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:55:39,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:55:39,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:55:39,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:55:39,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:55:40,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 327
[2023-11-19 07:55:40,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 07:55:40,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:55:40,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 327
[2023-11-19 07:55:40,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:55:40,435 INFO L124 PetriNetUnfolderBase]: 101/241 cut-off events.
[2023-11-19 07:55:40,435 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES.
[2023-11-19 07:55:40,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 241 events. 101/241 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1046 event pairs, 48 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 523. Up to 158 conditions per place.
[2023-11-19 07:55:40,438 INFO L140 encePairwiseOnDemand]: 319/327 looper letters, 51 selfloop transitions, 6 changer transitions 0/59 dead transitions.
[2023-11-19 07:55:40,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 59 transitions, 265 flow
[2023-11-19 07:55:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:55:40,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:55:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions.
[2023-11-19 07:55:40,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4841997961264016
[2023-11-19 07:55:40,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 475 transitions.
[2023-11-19 07:55:40,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 475 transitions.
[2023-11-19 07:55:40,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:55:40,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 475 transitions.
[2023-11-19 07:55:40,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 07:55:40,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 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 07:55:40,460 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 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 07:55:40,461 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 148 flow. Second operand 3 states and 475 transitions.
[2023-11-19 07:55:40,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 59 transitions, 265 flow
[2023-11-19 07:55:40,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:55:40,466 INFO L231 Difference]: Finished difference. Result has 52 places, 49 transitions, 140 flow
[2023-11-19 07:55:40,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=52, PETRI_TRANSITIONS=49}
[2023-11-19 07:55:40,469 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -10 predicate places.
[2023-11-19 07:55:40,469 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 140 flow
[2023-11-19 07:55:40,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 07:55:40,470 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:55:40,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:55:40,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-11-19 07:55:40,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:40,674 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [buildErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, buildErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 66 more)] ===
[2023-11-19 07:55:40,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:55:40,675 INFO L85 PathProgramCache]: Analyzing trace with hash 593223726, now seen corresponding path program 1 times
[2023-11-19 07:55:40,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:55:40,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156082941]
[2023-11-19 07:55:40,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:55:40,677 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 07:55:40,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:55:40,678 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:40,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344394d6-7d14-4bf7-b9dd-473d81d07603/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 07:55:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:55:40,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-11-19 07:55:40,848 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:55:40,869 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:55:40,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5
[2023-11-19 07:55:40,899 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size
[2023-11-19 07:55:40,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15
[2023-11-19 07:55:41,005 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2023-11-19 07:55:41,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2023-11-19 07:55:41,042 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2023-11-19 07:55:41,043 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 07:55:41,112 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2023-11-19 07:55:41,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18
[2023-11-19 07:55:41,182 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 07:55:41,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:55:41,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:55:41,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156082941]
[2023-11-19 07:55:41,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156082941] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:55:41,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:55:41,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:55:41,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797542984]
[2023-11-19 07:55:41,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:55:41,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:55:41,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:55:41,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:55:41,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20