./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1 --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 22840dbbc7fdeff8c5ae44a2e4ee4ab6a60b4cab9f47ba8847305b912adb9a2c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 06:45:38,732 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 06:45:38,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-12-02 06:45:38,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 06:45:38,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 06:45:38,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 06:45:38,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 06:45:38,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 06:45:38,806 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 06:45:38,807 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 06:45:38,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 06:45:38,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 06:45:38,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 06:45:38,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 06:45:38,807 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 06:45:38,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 06:45:38,808 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 06:45:38,809 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:45:38,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:45:38,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:45:38,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 06:45:38,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 06:45:38,811 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1
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 -> 22840dbbc7fdeff8c5ae44a2e4ee4ab6a60b4cab9f47ba8847305b912adb9a2c
[2024-12-02 06:45:39,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 06:45:39,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 06:45:39,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 06:45:39,014 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 06:45:39,015 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 06:45:39,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i
[2024-12-02 06:45:41,608 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data/b324be906/ca3f571e81d54c03a02ad6ce7ec0baab/FLAGb96d9b772
[2024-12-02 06:45:41,900 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 06:45:41,900 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i
[2024-12-02 06:45:41,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data/b324be906/ca3f571e81d54c03a02ad6ce7ec0baab/FLAGb96d9b772
[2024-12-02 06:45:42,188 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data/b324be906/ca3f571e81d54c03a02ad6ce7ec0baab
[2024-12-02 06:45:42,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 06:45:42,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 06:45:42,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 06:45:42,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 06:45:42,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 06:45:42,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:45:42" (1/1) ...
[2024-12-02 06:45:42,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fde9567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:42, skipping insertion in model container
[2024-12-02 06:45:42,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:45:42" (1/1) ...
[2024-12-02 06:45:42,229 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 06:45:42,516 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,544 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,548 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,552 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,559 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,588 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,591 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,593 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,597 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,621 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,621 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,623 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,624 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,639 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,639 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,641 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,641 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,654 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,654 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,655 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,656 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,666 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,666 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,668 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,668 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,669 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,670 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,671 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,672 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,672 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,675 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:42,684 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:45:42,697 ERROR L321 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)
[2024-12-02 06:45:42,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69656595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:42, skipping insertion in model container
[2024-12-02 06:45:42,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 06:45:42,698 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2024-12-02 06:45:42,700 INFO L158 Benchmark]: Toolchain (without parser) took 507.71ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 60.7MB in the end (delta: 29.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-12-02 06:45:42,700 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:45:42,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.12ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 60.7MB in the end (delta: 29.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-12-02 06:45:42,702 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 506.12ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 60.7MB in the end (delta: 29.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 757]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1 --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 22840dbbc7fdeff8c5ae44a2e4ee4ab6a60b4cab9f47ba8847305b912adb9a2c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 06:45:44,411 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 06:45:44,486 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-12-02 06:45:44,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 06:45:44,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 06:45:44,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 06:45:44,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 06:45:44,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 06:45:44,518 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 06:45:44,518 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 06:45:44,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 06:45:44,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 06:45:44,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 06:45:44,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 06:45:44,519 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 06:45:44,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 06:45:44,520 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 06:45:44,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 06:45:44,521 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 06:45:44,521 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 06:45:44,521 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 06:45:44,521 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 06:45:44,521 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:45:44,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:45:44,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:45:44,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:45:44,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:45:44,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 06:45:44,522 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 06:45:44,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 06:45:44,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 06:45:44,523 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1
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 -> 22840dbbc7fdeff8c5ae44a2e4ee4ab6a60b4cab9f47ba8847305b912adb9a2c
[2024-12-02 06:45:44,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 06:45:44,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 06:45:44,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 06:45:44,755 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 06:45:44,755 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 06:45:44,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i
[2024-12-02 06:45:47,416 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data/7920f914b/1308993ba8d0405499e4cd10275f1e09/FLAG3280dcf78
[2024-12-02 06:45:47,756 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 06:45:47,757 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i
[2024-12-02 06:45:47,773 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data/7920f914b/1308993ba8d0405499e4cd10275f1e09/FLAG3280dcf78
[2024-12-02 06:45:48,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/data/7920f914b/1308993ba8d0405499e4cd10275f1e09
[2024-12-02 06:45:48,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 06:45:48,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 06:45:48,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 06:45:48,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 06:45:48,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 06:45:48,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:48,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85c9476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48, skipping insertion in model container
[2024-12-02 06:45:48,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:48,058 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 06:45:48,399 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,431 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,436 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,441 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,448 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,481 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,484 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,486 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,492 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,519 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,520 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,522 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,523 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,539 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,539 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,542 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,542 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,555 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,555 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,558 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,559 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,572 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,572 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,582 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,582 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,584 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,586 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,587 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,588 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,589 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,592 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,599 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:45:48,612 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2024-12-02 06:45:48,623 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 06:45:48,648 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,659 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,660 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,662 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,666 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,680 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,682 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,684 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,687 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,703 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,704 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,706 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,706 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,717 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,717 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,719 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,719 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,729 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,729 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,731 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,731 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,738 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,739 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,740 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,740 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,741 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,743 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,743 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,744 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,744 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,747 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 06:45:48,751 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:45:48,754 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 06:45:48,873 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:45:48,906 INFO L204 MainTranslator]: Completed translation
[2024-12-02 06:45:48,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48 WrapperNode
[2024-12-02 06:45:48,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 06:45:48,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 06:45:48,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 06:45:48,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 06:45:48,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:48,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,014 INFO L138 Inliner]: procedures = 180, calls = 558, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2353
[2024-12-02 06:45:49,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 06:45:49,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 06:45:49,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 06:45:49,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 06:45:49,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,192 INFO L175 MemorySlicer]: Split 528 memory accesses to 3 slices as follows [2, 106, 420]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 94 writes are split as follows [0, 4, 90].
[2024-12-02 06:45:49,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,243 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,248 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 06:45:49,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 06:45:49,291 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 06:45:49,291 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 06:45:49,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (1/1) ...
[2024-12-02 06:45:49,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:45:49,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:45:49,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 06:45:49,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int
[2024-12-02 06:45:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-02 06:45:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-02 06:45:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2
[2024-12-02 06:45:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2024-12-02 06:45:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2024-12-02 06:45:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-12-02 06:45:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-12-02 06:45:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 06:45:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-12-02 06:45:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-12-02 06:45:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 06:45:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 06:45:49,589 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 06:45:49,591 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 06:45:49,639 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-12-02 06:45:49,664 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-12-02 06:45:49,686 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-12-02 06:45:57,247 INFO L? ?]: Removed 2231 outVars from TransFormulas that were not future-live.
[2024-12-02 06:45:57,247 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 06:45:57,294 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 06:45:57,294 INFO L312 CfgBuilder]: Removed 90 assume(true) statements.
[2024-12-02 06:45:57,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:45:57 BoogieIcfgContainer
[2024-12-02 06:45:57,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 06:45:57,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 06:45:57,297 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 06:45:57,301 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 06:45:57,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:45:48" (1/3) ...
[2024-12-02 06:45:57,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1728224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:45:57, skipping insertion in model container
[2024-12-02 06:45:57,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:45:48" (2/3) ...
[2024-12-02 06:45:57,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1728224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:45:57, skipping insertion in model container
[2024-12-02 06:45:57,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:45:57" (3/3) ...
[2024-12-02 06:45:57,303 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test10-2.i
[2024-12-02 06:45:57,315 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 06:45:57,317 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test10-2.i that has 6 procedures, 2287 locations, 1 initial locations, 89 loop locations, and 1091 error locations.
[2024-12-02 06:45:57,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:45:57,391 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@62ea15f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:45:57,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1091 error locations.
[2024-12-02 06:45:57,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 2277 states, 1174 states have (on average 2.1873935264054514) internal successors, (2568), 2263 states have internal predecessors, (2568), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14)
[2024-12-02 06:45:57,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 06:45:57,404 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:45:57,405 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 06:45:57,405 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:45:57,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:45:57,410 INFO L85 PathProgramCache]: Analyzing trace with hash 84472, now seen corresponding path program 1 times
[2024-12-02 06:45:57,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:45:57,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839588610]
[2024-12-02 06:45:57,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:45:57,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:45:57,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:45:57,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:45:57,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 06:45:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:45:57,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:45:57,652 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:45:57,690 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
[2024-12-02 06:45:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:45:57,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:45:57,716 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:45:57,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839588610]
[2024-12-02 06:45:57,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839588610] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:45:57,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:45:57,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 06:45:57,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549394129]
[2024-12-02 06:45:57,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:45:57,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:45:57,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:45:57,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:45:57,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:45:57,755 INFO L87 Difference]: Start difference. First operand has 2277 states, 1174 states have (on average 2.1873935264054514) internal successors, (2568), 2263 states have internal predecessors, (2568), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-12-02 06:46:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:01,196 INFO L93 Difference]: Finished difference Result 2941 states and 3125 transitions.
[2024-12-02 06:46:01,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:46:01,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3
[2024-12-02 06:46:01,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:01,212 INFO L225 Difference]: With dead ends: 2941
[2024-12-02 06:46:01,212 INFO L226 Difference]: Without dead ends: 2939
[2024-12-02 06:46:01,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:46:01,215 INFO L435 NwaCegarLoop]: 1401 mSDtfsCounter, 2143 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:01,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2153 Valid, 1879 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2024-12-02 06:46:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states.
[2024-12-02 06:46:01,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 2421.
[2024-12-02 06:46:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 1346 states have (on average 2.0222882615156017) internal successors, (2722), 2405 states have internal predecessors, (2722), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16)
[2024-12-02 06:46:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 2754 transitions.
[2024-12-02 06:46:01,323 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 2754 transitions. Word has length 3
[2024-12-02 06:46:01,324 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:01,324 INFO L471 AbstractCegarLoop]: Abstraction has 2421 states and 2754 transitions.
[2024-12-02 06:46:01,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-12-02 06:46:01,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 2754 transitions.
[2024-12-02 06:46:01,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 06:46:01,324 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:01,324 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 06:46:01,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 06:46:01,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:01,525 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:01,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:01,526 INFO L85 PathProgramCache]: Analyzing trace with hash 84473, now seen corresponding path program 1 times
[2024-12-02 06:46:01,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:01,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084473064]
[2024-12-02 06:46:01,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:01,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:01,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:01,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:01,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 06:46:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:01,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:01,681 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:01,688 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
[2024-12-02 06:46:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:01,702 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:01,702 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:01,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084473064]
[2024-12-02 06:46:01,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084473064] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:01,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:01,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 06:46:01,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526640876]
[2024-12-02 06:46:01,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:01,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:46:01,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:01,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:46:01,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:46:01,704 INFO L87 Difference]: Start difference. First operand 2421 states and 2754 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-12-02 06:46:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:06,182 INFO L93 Difference]: Finished difference Result 3223 states and 3636 transitions.
[2024-12-02 06:46:06,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:46:06,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3
[2024-12-02 06:46:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:06,193 INFO L225 Difference]: With dead ends: 3223
[2024-12-02 06:46:06,193 INFO L226 Difference]: Without dead ends: 3223
[2024-12-02 06:46:06,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:46:06,194 INFO L435 NwaCegarLoop]: 2039 mSDtfsCounter, 876 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 3347 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:06,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 3347 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2024-12-02 06:46:06,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states.
[2024-12-02 06:46:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 2894.
[2024-12-02 06:46:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 1817 states have (on average 1.9796367638965326) internal successors, (3597), 2875 states have internal predecessors, (3597), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:06,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3635 transitions.
[2024-12-02 06:46:06,261 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3635 transitions. Word has length 3
[2024-12-02 06:46:06,261 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:06,261 INFO L471 AbstractCegarLoop]: Abstraction has 2894 states and 3635 transitions.
[2024-12-02 06:46:06,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-12-02 06:46:06,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3635 transitions.
[2024-12-02 06:46:06,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-12-02 06:46:06,262 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:06,262 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:06,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 06:46:06,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:06,462 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:06,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:06,463 INFO L85 PathProgramCache]: Analyzing trace with hash 327660049, now seen corresponding path program 1 times
[2024-12-02 06:46:06,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:06,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637017385]
[2024-12-02 06:46:06,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:06,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:06,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:06,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:06,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 06:46:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:06,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:06,635 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:06,641 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
[2024-12-02 06:46:06,698 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2024-12-02 06:46:06,698 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
[2024-12-02 06:46:06,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:06,770 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:06,770 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:06,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637017385]
[2024-12-02 06:46:06,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637017385] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:06,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:06,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:46:06,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671110220]
[2024-12-02 06:46:06,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:06,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:46:06,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:06,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:46:06,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:06,772 INFO L87 Difference]: Start difference. First operand 2894 states and 3635 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)
[2024-12-02 06:46:14,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:14,449 INFO L93 Difference]: Finished difference Result 4582 states and 5108 transitions.
[2024-12-02 06:46:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:46:14,450 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
[2024-12-02 06:46:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:14,462 INFO L225 Difference]: With dead ends: 4582
[2024-12-02 06:46:14,462 INFO L226 Difference]: Without dead ends: 4582
[2024-12-02 06:46:14,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:14,463 INFO L435 NwaCegarLoop]: 2308 mSDtfsCounter, 2332 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:14,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 4918 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time]
[2024-12-02 06:46:14,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states.
[2024-12-02 06:46:14,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 3181.
[2024-12-02 06:46:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2104 states have (on average 1.9757604562737643) internal successors, (4157), 3162 states have internal predecessors, (4157), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4195 transitions.
[2024-12-02 06:46:14,542 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4195 transitions. Word has length 8
[2024-12-02 06:46:14,543 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:14,543 INFO L471 AbstractCegarLoop]: Abstraction has 3181 states and 4195 transitions.
[2024-12-02 06:46:14,543 INFO L472 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)
[2024-12-02 06:46:14,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4195 transitions.
[2024-12-02 06:46:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-12-02 06:46:14,543 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:14,544 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:14,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 06:46:14,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:14,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:14,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:14,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1567526949, now seen corresponding path program 1 times
[2024-12-02 06:46:14,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:14,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [3955318]
[2024-12-02 06:46:14,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:14,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:14,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:14,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:14,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 06:46:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:14,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:14,938 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:14,944 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
[2024-12-02 06:46:14,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:14,957 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:14,957 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:14,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3955318]
[2024-12-02 06:46:14,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3955318] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:14,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:14,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 06:46:14,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133424275]
[2024-12-02 06:46:14,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:14,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:46:14,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:14,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:46:14,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:46:14,959 INFO L87 Difference]: Start difference. First operand 3181 states and 4195 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)
[2024-12-02 06:46:18,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:18,195 INFO L93 Difference]: Finished difference Result 3894 states and 4947 transitions.
[2024-12-02 06:46:18,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:46:18,196 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
[2024-12-02 06:46:18,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:18,202 INFO L225 Difference]: With dead ends: 3894
[2024-12-02 06:46:18,202 INFO L226 Difference]: Without dead ends: 3894
[2024-12-02 06:46:18,202 INFO L434 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
[2024-12-02 06:46:18,203 INFO L435 NwaCegarLoop]: 2226 mSDtfsCounter, 1921 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:18,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 2903 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-12-02 06:46:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states.
[2024-12-02 06:46:18,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3089.
[2024-12-02 06:46:18,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 2104 states have (on average 1.9120722433460076) internal successors, (4023), 3070 states have internal predecessors, (4023), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:18,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4061 transitions.
[2024-12-02 06:46:18,254 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4061 transitions. Word has length 9
[2024-12-02 06:46:18,254 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:18,254 INFO L471 AbstractCegarLoop]: Abstraction has 3089 states and 4061 transitions.
[2024-12-02 06:46:18,254 INFO L472 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)
[2024-12-02 06:46:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4061 transitions.
[2024-12-02 06:46:18,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-12-02 06:46:18,255 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:18,255 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:18,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-12-02 06:46:18,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:18,455 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:18,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:18,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1567526950, now seen corresponding path program 1 times
[2024-12-02 06:46:18,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:18,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291342954]
[2024-12-02 06:46:18,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:18,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:18,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:18,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:18,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 06:46:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:18,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:18,626 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:18,632 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
[2024-12-02 06:46:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:18,651 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:18,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:18,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291342954]
[2024-12-02 06:46:18,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291342954] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:18,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:18,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 06:46:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765806493]
[2024-12-02 06:46:18,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:18,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:46:18,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:18,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:46:18,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:46:18,652 INFO L87 Difference]: Start difference. First operand 3089 states and 4061 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)
[2024-12-02 06:46:23,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:23,547 INFO L93 Difference]: Finished difference Result 4703 states and 6163 transitions.
[2024-12-02 06:46:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:46:23,547 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
[2024-12-02 06:46:23,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:23,554 INFO L225 Difference]: With dead ends: 4703
[2024-12-02 06:46:23,554 INFO L226 Difference]: Without dead ends: 4703
[2024-12-02 06:46:23,554 INFO L434 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
[2024-12-02 06:46:23,555 INFO L435 NwaCegarLoop]: 2583 mSDtfsCounter, 1424 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 3691 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:23,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 3691 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2024-12-02 06:46:23,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4703 states.
[2024-12-02 06:46:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4703 to 3256.
[2024-12-02 06:46:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 2281 states have (on average 1.8952213941253837) internal successors, (4323), 3237 states have internal predecessors, (4323), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:23,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4361 transitions.
[2024-12-02 06:46:23,604 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4361 transitions. Word has length 9
[2024-12-02 06:46:23,604 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:23,604 INFO L471 AbstractCegarLoop]: Abstraction has 3256 states and 4361 transitions.
[2024-12-02 06:46:23,604 INFO L472 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)
[2024-12-02 06:46:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4361 transitions.
[2024-12-02 06:46:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 06:46:23,605 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:23,605 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:23,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-12-02 06:46:23,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:23,805 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr638REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:23,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2037202196, now seen corresponding path program 1 times
[2024-12-02 06:46:23,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:23,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703528672]
[2024-12-02 06:46:23,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:23,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:23,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:23,808 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:23,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 06:46:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:23,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:23,954 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:23,957 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
[2024-12-02 06:46:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:23,983 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:23,983 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:23,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703528672]
[2024-12-02 06:46:23,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703528672] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:23,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:23,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:46:23,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753465789]
[2024-12-02 06:46:23,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:23,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:46:23,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:23,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:46:23,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:23,984 INFO L87 Difference]: Start difference. First operand 3256 states and 4361 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)
[2024-12-02 06:46:28,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:28,061 INFO L93 Difference]: Finished difference Result 3722 states and 4677 transitions.
[2024-12-02 06:46:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:46:28,061 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
[2024-12-02 06:46:28,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:28,067 INFO L225 Difference]: With dead ends: 3722
[2024-12-02 06:46:28,068 INFO L226 Difference]: Without dead ends: 3722
[2024-12-02 06:46:28,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:46:28,068 INFO L435 NwaCegarLoop]: 1349 mSDtfsCounter, 2106 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:28,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 3027 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2024-12-02 06:46:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states.
[2024-12-02 06:46:28,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3233.
[2024-12-02 06:46:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2281 states have (on average 1.875054800526085) internal successors, (4277), 3214 states have internal predecessors, (4277), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:28,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 4315 transitions.
[2024-12-02 06:46:28,111 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 4315 transitions. Word has length 11
[2024-12-02 06:46:28,111 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:28,111 INFO L471 AbstractCegarLoop]: Abstraction has 3233 states and 4315 transitions.
[2024-12-02 06:46:28,111 INFO L472 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)
[2024-12-02 06:46:28,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 4315 transitions.
[2024-12-02 06:46:28,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 06:46:28,112 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:28,112 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:28,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-12-02 06:46:28,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:28,312 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr639REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:28,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:28,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2037202195, now seen corresponding path program 1 times
[2024-12-02 06:46:28,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:28,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103517774]
[2024-12-02 06:46:28,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:28,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:28,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:28,315 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:28,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 06:46:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:28,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:28,472 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:28,477 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
[2024-12-02 06:46:28,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:28,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:28,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:28,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103517774]
[2024-12-02 06:46:28,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103517774] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:28,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:28,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:46:28,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362613760]
[2024-12-02 06:46:28,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:28,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:46:28,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:28,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:46:28,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:28,543 INFO L87 Difference]: Start difference. First operand 3233 states and 4315 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)
[2024-12-02 06:46:33,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:33,652 INFO L93 Difference]: Finished difference Result 3983 states and 5137 transitions.
[2024-12-02 06:46:33,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:46:33,652 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
[2024-12-02 06:46:33,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:33,659 INFO L225 Difference]: With dead ends: 3983
[2024-12-02 06:46:33,659 INFO L226 Difference]: Without dead ends: 3983
[2024-12-02 06:46:33,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:46:33,659 INFO L435 NwaCegarLoop]: 1944 mSDtfsCounter, 857 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 4327 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:33,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 4327 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2460 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2024-12-02 06:46:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states.
[2024-12-02 06:46:33,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3282.
[2024-12-02 06:46:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 2330 states have (on average 1.8622317596566524) internal successors, (4339), 3263 states have internal predecessors, (4339), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 4377 transitions.
[2024-12-02 06:46:33,715 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 4377 transitions. Word has length 11
[2024-12-02 06:46:33,715 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:33,715 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 4377 transitions.
[2024-12-02 06:46:33,715 INFO L472 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)
[2024-12-02 06:46:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 4377 transitions.
[2024-12-02 06:46:33,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-12-02 06:46:33,715 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:33,716 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:33,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 06:46:33,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:33,916 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr663REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:33,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash 753951524, now seen corresponding path program 1 times
[2024-12-02 06:46:33,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:33,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034526283]
[2024-12-02 06:46:33,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:33,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:33,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:33,920 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:33,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 06:46:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:34,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:34,095 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:34,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:34,109 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:34,109 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:34,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034526283]
[2024-12-02 06:46:34,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034526283] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:34,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:34,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:46:34,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34805401]
[2024-12-02 06:46:34,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:34,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:46:34,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:34,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:46:34,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:34,111 INFO L87 Difference]: Start difference. First operand 3282 states and 4377 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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)
[2024-12-02 06:46:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:34,206 INFO L93 Difference]: Finished difference Result 3204 states and 4256 transitions.
[2024-12-02 06:46:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:46:34,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13
[2024-12-02 06:46:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:34,214 INFO L225 Difference]: With dead ends: 3204
[2024-12-02 06:46:34,214 INFO L226 Difference]: Without dead ends: 3204
[2024-12-02 06:46:34,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:46:34,215 INFO L435 NwaCegarLoop]: 2182 mSDtfsCounter, 45 mSDsluCounter, 4341 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:34,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 6523 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 06:46:34,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states.
[2024-12-02 06:46:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 3198.
[2024-12-02 06:46:34,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 2265 states have (on average 1.8596026490066224) internal successors, (4212), 3179 states have internal predecessors, (4212), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 4250 transitions.
[2024-12-02 06:46:34,258 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 4250 transitions. Word has length 13
[2024-12-02 06:46:34,258 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:34,258 INFO L471 AbstractCegarLoop]: Abstraction has 3198 states and 4250 transitions.
[2024-12-02 06:46:34,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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)
[2024-12-02 06:46:34,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 4250 transitions.
[2024-12-02 06:46:34,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-12-02 06:46:34,259 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:34,259 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:34,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 06:46:34,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:34,460 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr324REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:34,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:34,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1773122699, now seen corresponding path program 1 times
[2024-12-02 06:46:34,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:34,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245431620]
[2024-12-02 06:46:34,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:34,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:34,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:34,462 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:34,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-12-02 06:46:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:34,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:34,640 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:34,651 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
[2024-12-02 06:46:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:34,695 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:34,695 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:34,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245431620]
[2024-12-02 06:46:34,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245431620] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:34,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:34,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:46:34,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716200977]
[2024-12-02 06:46:34,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:34,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:46:34,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:34,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:46:34,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:34,696 INFO L87 Difference]: Start difference. First operand 3198 states and 4250 transitions. Second operand has 4 states, 3 states have (on average 7.0) 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)
[2024-12-02 06:46:38,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:38,901 INFO L93 Difference]: Finished difference Result 3888 states and 4939 transitions.
[2024-12-02 06:46:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:46:38,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) 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
[2024-12-02 06:46:38,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:38,909 INFO L225 Difference]: With dead ends: 3888
[2024-12-02 06:46:38,909 INFO L226 Difference]: Without dead ends: 3888
[2024-12-02 06:46:38,909 INFO L434 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
[2024-12-02 06:46:38,910 INFO L435 NwaCegarLoop]: 2076 mSDtfsCounter, 1884 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:38,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 4304 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2727 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2024-12-02 06:46:38,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states.
[2024-12-02 06:46:38,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3175.
[2024-12-02 06:46:38,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2265 states have (on average 1.8189845474613686) internal successors, (4120), 3156 states have internal predecessors, (4120), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4158 transitions.
[2024-12-02 06:46:38,942 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4158 transitions. Word has length 21
[2024-12-02 06:46:38,942 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:38,942 INFO L471 AbstractCegarLoop]: Abstraction has 3175 states and 4158 transitions.
[2024-12-02 06:46:38,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) 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)
[2024-12-02 06:46:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4158 transitions.
[2024-12-02 06:46:38,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-12-02 06:46:38,943 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:38,943 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:38,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-12-02 06:46:39,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:39,144 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr325REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:39,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:39,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1773122698, now seen corresponding path program 1 times
[2024-12-02 06:46:39,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:39,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110317237]
[2024-12-02 06:46:39,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:39,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:39,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:39,146 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:39,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-12-02 06:46:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:39,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:39,314 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:39,321 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
[2024-12-02 06:46:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:39,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:39,413 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110317237]
[2024-12-02 06:46:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110317237] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:39,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:39,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:46:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843253681]
[2024-12-02 06:46:39,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:39,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:46:39,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:39,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:46:39,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:39,415 INFO L87 Difference]: Start difference. First operand 3175 states and 4158 transitions. Second operand has 4 states, 3 states have (on average 7.0) 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)
[2024-12-02 06:46:45,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:45,368 INFO L93 Difference]: Finished difference Result 4601 states and 5919 transitions.
[2024-12-02 06:46:45,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:46:45,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) 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
[2024-12-02 06:46:45,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:45,374 INFO L225 Difference]: With dead ends: 4601
[2024-12-02 06:46:45,374 INFO L226 Difference]: Without dead ends: 4601
[2024-12-02 06:46:45,374 INFO L434 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
[2024-12-02 06:46:45,375 INFO L435 NwaCegarLoop]: 2431 mSDtfsCounter, 1461 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 2860 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 5123 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:45,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 5123 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2860 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2024-12-02 06:46:45,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states.
[2024-12-02 06:46:45,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 3291.
[2024-12-02 06:46:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3291 states, 2381 states have (on average 1.7891642167156656) internal successors, (4260), 3272 states have internal predecessors, (4260), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3291 states to 3291 states and 4298 transitions.
[2024-12-02 06:46:45,399 INFO L78 Accepts]: Start accepts. Automaton has 3291 states and 4298 transitions. Word has length 21
[2024-12-02 06:46:45,400 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:45,400 INFO L471 AbstractCegarLoop]: Abstraction has 3291 states and 4298 transitions.
[2024-12-02 06:46:45,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) 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)
[2024-12-02 06:46:45,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3291 states and 4298 transitions.
[2024-12-02 06:46:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-12-02 06:46:45,400 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:45,400 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:45,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-12-02 06:46:45,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:45,601 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:45,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2007176747, now seen corresponding path program 1 times
[2024-12-02 06:46:45,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:45,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666011557]
[2024-12-02 06:46:45,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:45,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:45,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:45,603 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:45,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-12-02 06:46:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:45,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:45,786 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:45,790 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
[2024-12-02 06:46:45,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:45,828 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:45,828 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:45,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666011557]
[2024-12-02 06:46:45,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666011557] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:45,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:45,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:46:45,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129149072]
[2024-12-02 06:46:45,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:45,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:46:45,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:45,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:46:45,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:45,830 INFO L87 Difference]: Start difference. First operand 3291 states and 4298 transitions. Second operand has 4 states, 3 states have (on average 7.0) 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)
[2024-12-02 06:46:49,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:49,602 INFO L93 Difference]: Finished difference Result 3973 states and 5025 transitions.
[2024-12-02 06:46:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:46:49,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) 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
[2024-12-02 06:46:49,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:49,608 INFO L225 Difference]: With dead ends: 3973
[2024-12-02 06:46:49,608 INFO L226 Difference]: Without dead ends: 3973
[2024-12-02 06:46:49,609 INFO L434 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
[2024-12-02 06:46:49,609 INFO L435 NwaCegarLoop]: 2076 mSDtfsCounter, 1861 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:49,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 4304 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2024-12-02 06:46:49,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3973 states.
[2024-12-02 06:46:49,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3973 to 3268.
[2024-12-02 06:46:49,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 2381 states have (on average 1.7698446031079378) internal successors, (4214), 3249 states have internal predecessors, (4214), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:49,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 4252 transitions.
[2024-12-02 06:46:49,648 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 4252 transitions. Word has length 21
[2024-12-02 06:46:49,648 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:49,648 INFO L471 AbstractCegarLoop]: Abstraction has 3268 states and 4252 transitions.
[2024-12-02 06:46:49,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) 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)
[2024-12-02 06:46:49,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 4252 transitions.
[2024-12-02 06:46:49,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-12-02 06:46:49,649 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:49,649 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:46:49,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-12-02 06:46:49,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:49,850 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:49,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:49,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2007176746, now seen corresponding path program 1 times
[2024-12-02 06:46:49,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:49,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146587675]
[2024-12-02 06:46:49,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:49,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:49,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:49,852 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:49,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-12-02 06:46:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:50,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:50,048 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:50,054 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
[2024-12-02 06:46:50,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:50,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:46:50,142 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:50,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146587675]
[2024-12-02 06:46:50,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146587675] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:46:50,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:46:50,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:46:50,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991162714]
[2024-12-02 06:46:50,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:46:50,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:46:50,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:50,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:46:50,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:46:50,144 INFO L87 Difference]: Start difference. First operand 3268 states and 4252 transitions. Second operand has 4 states, 3 states have (on average 7.0) 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)
[2024-12-02 06:46:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:46:55,872 INFO L93 Difference]: Finished difference Result 4694 states and 6013 transitions.
[2024-12-02 06:46:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:46:55,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) 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
[2024-12-02 06:46:55,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:46:55,882 INFO L225 Difference]: With dead ends: 4694
[2024-12-02 06:46:55,882 INFO L226 Difference]: Without dead ends: 4694
[2024-12-02 06:46:55,882 INFO L434 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
[2024-12-02 06:46:55,882 INFO L435 NwaCegarLoop]: 2408 mSDtfsCounter, 1438 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time
[2024-12-02 06:46:55,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 5077 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2859 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time]
[2024-12-02 06:46:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states.
[2024-12-02 06:46:55,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 3384.
[2024-12-02 06:46:55,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 2497 states have (on average 1.7436924309171005) internal successors, (4354), 3365 states have internal predecessors, (4354), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:46:55,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 4392 transitions.
[2024-12-02 06:46:55,935 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 4392 transitions. Word has length 21
[2024-12-02 06:46:55,935 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:46:55,935 INFO L471 AbstractCegarLoop]: Abstraction has 3384 states and 4392 transitions.
[2024-12-02 06:46:55,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) 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)
[2024-12-02 06:46:55,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 4392 transitions.
[2024-12-02 06:46:55,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-12-02 06:46:55,936 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:46:55,936 INFO L218 NwaCegarLoop]: trace histogram [2, 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]
[2024-12-02 06:46:55,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-12-02 06:46:56,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:56,137 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr325REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:46:56,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:46:56,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1475899896, now seen corresponding path program 1 times
[2024-12-02 06:46:56,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:46:56,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189194122]
[2024-12-02 06:46:56,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:46:56,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:46:56,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:46:56,140 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:46:56,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-12-02 06:46:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:46:56,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 06:46:56,371 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:46:56,379 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
[2024-12-02 06:46:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:56,583 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:46:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:46:57,016 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:46:57,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189194122]
[2024-12-02 06:46:57,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189194122] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:46:57,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:46:57,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-12-02 06:46:57,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046589785]
[2024-12-02 06:46:57,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:46:57,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 06:46:57,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:46:57,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 06:46:57,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-12-02 06:46:57,018 INFO L87 Difference]: Start difference. First operand 3384 states and 4392 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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)
[2024-12-02 06:47:11,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:11,665 INFO L93 Difference]: Finished difference Result 5087 states and 6549 transitions.
[2024-12-02 06:47:11,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 06:47:11,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 40
[2024-12-02 06:47:11,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:11,671 INFO L225 Difference]: With dead ends: 5087
[2024-12-02 06:47:11,671 INFO L226 Difference]: Without dead ends: 5087
[2024-12-02 06:47:11,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2024-12-02 06:47:11,672 INFO L435 NwaCegarLoop]: 2403 mSDtfsCounter, 2198 mSDsluCounter, 5413 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 7816 SdHoareTripleChecker+Invalid, 5286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:11,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 7816 Invalid, 5286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 5257 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time]
[2024-12-02 06:47:11,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5087 states.
[2024-12-02 06:47:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5087 to 3550.
[2024-12-02 06:47:11,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2663 states have (on average 1.7228689447990988) internal successors, (4588), 3531 states have internal predecessors, (4588), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:47:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 4626 transitions.
[2024-12-02 06:47:11,714 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 4626 transitions. Word has length 40
[2024-12-02 06:47:11,714 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:11,714 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 4626 transitions.
[2024-12-02 06:47:11,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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)
[2024-12-02 06:47:11,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 4626 transitions.
[2024-12-02 06:47:11,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-12-02 06:47:11,715 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:11,715 INFO L218 NwaCegarLoop]: trace histogram [2, 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]
[2024-12-02 06:47:11,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-12-02 06:47:11,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:11,916 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:11,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:11,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1855509769, now seen corresponding path program 1 times
[2024-12-02 06:47:11,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:11,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925805467]
[2024-12-02 06:47:11,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:11,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:11,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:11,918 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:11,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-12-02 06:47:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:12,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:12,131 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:12,135 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
[2024-12-02 06:47:12,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:12,319 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:47:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:12,777 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:12,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925805467]
[2024-12-02 06:47:12,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925805467] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:47:12,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:47:12,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-12-02 06:47:12,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921334115]
[2024-12-02 06:47:12,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:47:12,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 06:47:12,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:12,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 06:47:12,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-12-02 06:47:12,778 INFO L87 Difference]: Start difference. First operand 3550 states and 4626 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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)
[2024-12-02 06:47:27,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:27,278 INFO L93 Difference]: Finished difference Result 5253 states and 6783 transitions.
[2024-12-02 06:47:27,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 06:47:27,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 40
[2024-12-02 06:47:27,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:27,284 INFO L225 Difference]: With dead ends: 5253
[2024-12-02 06:47:27,284 INFO L226 Difference]: Without dead ends: 5253
[2024-12-02 06:47:27,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2024-12-02 06:47:27,284 INFO L435 NwaCegarLoop]: 2408 mSDtfsCounter, 3782 mSDsluCounter, 4402 mSDsCounter, 0 mSdLazyCounter, 4343 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3788 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:27,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3788 Valid, 6810 Invalid, 4375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 4343 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time]
[2024-12-02 06:47:27,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5253 states.
[2024-12-02 06:47:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5253 to 3716.
[2024-12-02 06:47:27,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 2829 states have (on average 1.7044892188052316) internal successors, (4822), 3697 states have internal predecessors, (4822), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-12-02 06:47:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 4860 transitions.
[2024-12-02 06:47:27,322 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 4860 transitions. Word has length 40
[2024-12-02 06:47:27,322 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:27,323 INFO L471 AbstractCegarLoop]: Abstraction has 3716 states and 4860 transitions.
[2024-12-02 06:47:27,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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)
[2024-12-02 06:47:27,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 4860 transitions.
[2024-12-02 06:47:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-12-02 06:47:27,323 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:27,323 INFO L218 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]
[2024-12-02 06:47:27,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-12-02 06:47:27,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:27,524 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr684REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:27,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:27,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1839620179, now seen corresponding path program 1 times
[2024-12-02 06:47:27,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:27,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330199548]
[2024-12-02 06:47:27,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:27,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:27,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:27,526 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:27,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-12-02 06:47:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:27,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:27,736 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:27,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:27,889 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:27,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330199548]
[2024-12-02 06:47:27,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330199548] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:27,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:27,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:47:27,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736838213]
[2024-12-02 06:47:27,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:27,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:47:27,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:27,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:47:27,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:47:27,890 INFO L87 Difference]: Start difference. First operand 3716 states and 4860 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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)
[2024-12-02 06:47:28,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:28,141 INFO L93 Difference]: Finished difference Result 5304 states and 6561 transitions.
[2024-12-02 06:47:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:47:28,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41
[2024-12-02 06:47:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:28,146 INFO L225 Difference]: With dead ends: 5304
[2024-12-02 06:47:28,146 INFO L226 Difference]: Without dead ends: 5304
[2024-12-02 06:47:28,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:47:28,147 INFO L435 NwaCegarLoop]: 2228 mSDtfsCounter, 1445 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 4285 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:28,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 4285 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 06:47:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5304 states.
[2024-12-02 06:47:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5304 to 4437.
[2024-12-02 06:47:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3546 states have (on average 1.6954314720812182) internal successors, (6012), 4411 states have internal predecessors, (6012), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26)
[2024-12-02 06:47:28,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 6064 transitions.
[2024-12-02 06:47:28,183 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 6064 transitions. Word has length 41
[2024-12-02 06:47:28,183 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:28,183 INFO L471 AbstractCegarLoop]: Abstraction has 4437 states and 6064 transitions.
[2024-12-02 06:47:28,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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)
[2024-12-02 06:47:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 6064 transitions.
[2024-12-02 06:47:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-12-02 06:47:28,184 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:28,184 INFO L218 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]
[2024-12-02 06:47:28,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-12-02 06:47:28,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:28,385 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:28,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:28,385 INFO L85 PathProgramCache]: Analyzing trace with hash 277634507, now seen corresponding path program 1 times
[2024-12-02 06:47:28,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:28,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011802901]
[2024-12-02 06:47:28,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:28,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:28,387 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:28,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-12-02 06:47:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:28,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:28,573 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:28,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:28,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:28,613 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:28,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011802901]
[2024-12-02 06:47:28,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011802901] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:28,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:28,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:47:28,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752351972]
[2024-12-02 06:47:28,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:28,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:47:28,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:28,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:47:28,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:47:28,614 INFO L87 Difference]: Start difference. First operand 4437 states and 6064 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:47:28,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:28,675 INFO L93 Difference]: Finished difference Result 4419 states and 6030 transitions.
[2024-12-02 06:47:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:47:28,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52
[2024-12-02 06:47:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:28,680 INFO L225 Difference]: With dead ends: 4419
[2024-12-02 06:47:28,680 INFO L226 Difference]: Without dead ends: 4419
[2024-12-02 06:47:28,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:47:28,680 INFO L435 NwaCegarLoop]: 2138 mSDtfsCounter, 27 mSDsluCounter, 4239 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6377 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:28,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6377 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:47:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4419 states.
[2024-12-02 06:47:28,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4419 to 4419.
[2024-12-02 06:47:28,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 3528 states have (on average 1.6944444444444444) internal successors, (5978), 4393 states have internal predecessors, (5978), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26)
[2024-12-02 06:47:28,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 6030 transitions.
[2024-12-02 06:47:28,713 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 6030 transitions. Word has length 52
[2024-12-02 06:47:28,713 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:28,713 INFO L471 AbstractCegarLoop]: Abstraction has 4419 states and 6030 transitions.
[2024-12-02 06:47:28,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:47:28,713 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 6030 transitions.
[2024-12-02 06:47:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-12-02 06:47:28,713 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:28,713 INFO L218 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]
[2024-12-02 06:47:28,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-12-02 06:47:28,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:28,914 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr427REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:28,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:28,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1298864554, now seen corresponding path program 1 times
[2024-12-02 06:47:28,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:28,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169162897]
[2024-12-02 06:47:28,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:28,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:28,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:28,916 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:28,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-12-02 06:47:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:29,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:29,169 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:29,368 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:29,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:29,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169162897]
[2024-12-02 06:47:29,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169162897] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:29,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:29,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:47:29,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072097545]
[2024-12-02 06:47:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:29,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:47:29,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:29,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:47:29,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:47:29,369 INFO L87 Difference]: Start difference. First operand 4419 states and 6030 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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)
[2024-12-02 06:47:29,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:29,544 INFO L93 Difference]: Finished difference Result 5793 states and 7497 transitions.
[2024-12-02 06:47:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:47:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53
[2024-12-02 06:47:29,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:29,548 INFO L225 Difference]: With dead ends: 5793
[2024-12-02 06:47:29,548 INFO L226 Difference]: Without dead ends: 5793
[2024-12-02 06:47:29,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:47:29,548 INFO L435 NwaCegarLoop]: 2151 mSDtfsCounter, 1327 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:29,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 4242 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 06:47:29,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5793 states.
[2024-12-02 06:47:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5793 to 5166.
[2024-12-02 06:47:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 4271 states have (on average 1.6862561461016154) internal successors, (7202), 5133 states have internal predecessors, (7202), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 30 states have call predecessors, (33), 33 states have call successors, (33)
[2024-12-02 06:47:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 7268 transitions.
[2024-12-02 06:47:29,586 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 7268 transitions. Word has length 53
[2024-12-02 06:47:29,586 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:29,587 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 7268 transitions.
[2024-12-02 06:47:29,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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)
[2024-12-02 06:47:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 7268 transitions.
[2024-12-02 06:47:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-12-02 06:47:29,587 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:29,587 INFO L218 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]
[2024-12-02 06:47:29,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-12-02 06:47:29,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:29,788 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr381REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:29,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:29,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1221998629, now seen corresponding path program 1 times
[2024-12-02 06:47:29,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:29,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635674464]
[2024-12-02 06:47:29,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:29,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:29,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:29,790 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:29,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-12-02 06:47:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:30,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:30,057 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:30,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:30,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:30,089 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:30,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635674464]
[2024-12-02 06:47:30,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635674464] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:30,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:30,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:47:30,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637886793]
[2024-12-02 06:47:30,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:30,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:47:30,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:30,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:47:30,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:47:30,090 INFO L87 Difference]: Start difference. First operand 5166 states and 7268 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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)
[2024-12-02 06:47:30,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:30,177 INFO L93 Difference]: Finished difference Result 4696 states and 6520 transitions.
[2024-12-02 06:47:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:47:30,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56
[2024-12-02 06:47:30,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:30,181 INFO L225 Difference]: With dead ends: 4696
[2024-12-02 06:47:30,181 INFO L226 Difference]: Without dead ends: 4696
[2024-12-02 06:47:30,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:47:30,182 INFO L435 NwaCegarLoop]: 2103 mSDtfsCounter, 76 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 6216 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:30,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 6216 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 06:47:30,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4696 states.
[2024-12-02 06:47:30,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4696 to 4689.
[2024-12-02 06:47:30,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 3806 states have (on average 1.6939043615344194) internal successors, (6447), 4656 states have internal predecessors, (6447), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 30 states have call predecessors, (33), 33 states have call successors, (33)
[2024-12-02 06:47:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 6513 transitions.
[2024-12-02 06:47:30,241 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 6513 transitions. Word has length 56
[2024-12-02 06:47:30,241 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:30,241 INFO L471 AbstractCegarLoop]: Abstraction has 4689 states and 6513 transitions.
[2024-12-02 06:47:30,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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)
[2024-12-02 06:47:30,241 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 6513 transitions.
[2024-12-02 06:47:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-12-02 06:47:30,241 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:30,241 INFO L218 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]
[2024-12-02 06:47:30,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-12-02 06:47:30,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:30,442 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:30,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:30,442 INFO L85 PathProgramCache]: Analyzing trace with hash 726112748, now seen corresponding path program 1 times
[2024-12-02 06:47:30,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:30,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230089070]
[2024-12-02 06:47:30,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:30,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:30,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:30,444 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:30,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-12-02 06:47:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:30,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:30,683 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:30,718 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:30,718 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:30,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230089070]
[2024-12-02 06:47:30,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230089070] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:30,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:30,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:47:30,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316217654]
[2024-12-02 06:47:30,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:30,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:47:30,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:30,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:47:30,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:47:30,719 INFO L87 Difference]: Start difference. First operand 4689 states and 6513 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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)
[2024-12-02 06:47:30,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:30,809 INFO L93 Difference]: Finished difference Result 4228 states and 5853 transitions.
[2024-12-02 06:47:30,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:47:30,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56
[2024-12-02 06:47:30,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:30,813 INFO L225 Difference]: With dead ends: 4228
[2024-12-02 06:47:30,813 INFO L226 Difference]: Without dead ends: 4228
[2024-12-02 06:47:30,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:47:30,814 INFO L435 NwaCegarLoop]: 2057 mSDtfsCounter, 56 mSDsluCounter, 4041 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 6098 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:30,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 6098 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 06:47:30,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4228 states.
[2024-12-02 06:47:30,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4228 to 4225.
[2024-12-02 06:47:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4225 states, 3365 states have (on average 1.7188707280832096) internal successors, (5784), 4192 states have internal predecessors, (5784), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 30 states have call predecessors, (33), 33 states have call successors, (33)
[2024-12-02 06:47:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4225 states to 4225 states and 5850 transitions.
[2024-12-02 06:47:30,847 INFO L78 Accepts]: Start accepts. Automaton has 4225 states and 5850 transitions. Word has length 56
[2024-12-02 06:47:30,848 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:30,848 INFO L471 AbstractCegarLoop]: Abstraction has 4225 states and 5850 transitions.
[2024-12-02 06:47:30,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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)
[2024-12-02 06:47:30,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4225 states and 5850 transitions.
[2024-12-02 06:47:30,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-12-02 06:47:30,848 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:30,849 INFO L218 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]
[2024-12-02 06:47:30,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-12-02 06:47:31,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:31,049 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:31,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:31,049 INFO L85 PathProgramCache]: Analyzing trace with hash -8851329, now seen corresponding path program 1 times
[2024-12-02 06:47:31,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:31,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193059797]
[2024-12-02 06:47:31,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:31,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:31,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:31,052 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:31,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-12-02 06:47:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:31,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:31,292 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:31,297 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 06:47:31,297 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 06:47:31,299 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 33 treesize of output 31
[2024-12-02 06:47:31,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 06:47:31,329 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 62 treesize of output 22
[2024-12-02 06:47:31,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:31,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:31,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:31,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193059797]
[2024-12-02 06:47:31,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193059797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:31,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:31,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:47:31,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060871850]
[2024-12-02 06:47:31,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:31,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:47:31,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:31,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:47:31,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:47:31,347 INFO L87 Difference]: Start difference. First operand 4225 states and 5850 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:47:32,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:32,258 INFO L93 Difference]: Finished difference Result 4790 states and 6332 transitions.
[2024-12-02 06:47:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:47:32,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60
[2024-12-02 06:47:32,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:32,263 INFO L225 Difference]: With dead ends: 4790
[2024-12-02 06:47:32,263 INFO L226 Difference]: Without dead ends: 4790
[2024-12-02 06:47:32,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:47:32,264 INFO L435 NwaCegarLoop]: 1963 mSDtfsCounter, 1702 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:32,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 5170 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 06:47:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4790 states.
[2024-12-02 06:47:32,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4790 to 3937.
[2024-12-02 06:47:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3937 states, 3080 states have (on average 1.7285714285714286) internal successors, (5324), 3907 states have internal predecessors, (5324), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30)
[2024-12-02 06:47:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3937 states to 3937 states and 5384 transitions.
[2024-12-02 06:47:32,318 INFO L78 Accepts]: Start accepts. Automaton has 3937 states and 5384 transitions. Word has length 60
[2024-12-02 06:47:32,318 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:32,318 INFO L471 AbstractCegarLoop]: Abstraction has 3937 states and 5384 transitions.
[2024-12-02 06:47:32,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:47:32,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3937 states and 5384 transitions.
[2024-12-02 06:47:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-12-02 06:47:32,319 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:32,319 INFO L218 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]
[2024-12-02 06:47:32,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0
[2024-12-02 06:47:32,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:32,520 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr381REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:32,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:32,520 INFO L85 PathProgramCache]: Analyzing trace with hash -706918385, now seen corresponding path program 1 times
[2024-12-02 06:47:32,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:32,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615377517]
[2024-12-02 06:47:32,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:32,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:32,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:32,522 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:32,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-12-02 06:47:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:32,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:32,842 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:32,846 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 06:47:32,847 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 06:47:32,847 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 06:47:32,850 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
[2024-12-02 06:47:33,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 06:47:33,111 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
[2024-12-02 06:47:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:33,126 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:33,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:33,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615377517]
[2024-12-02 06:47:33,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615377517] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:33,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:33,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 06:47:33,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150785016]
[2024-12-02 06:47:33,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:33,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:47:33,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:33,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:47:33,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:47:33,127 INFO L87 Difference]: Start difference. First operand 3937 states and 5384 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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)
[2024-12-02 06:47:33,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:33,826 INFO L93 Difference]: Finished difference Result 4072 states and 5120 transitions.
[2024-12-02 06:47:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:47:33,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 64
[2024-12-02 06:47:33,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:33,831 INFO L225 Difference]: With dead ends: 4072
[2024-12-02 06:47:33,831 INFO L226 Difference]: Without dead ends: 4072
[2024-12-02 06:47:33,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 06:47:33,832 INFO L435 NwaCegarLoop]: 2276 mSDtfsCounter, 906 mSDsluCounter, 5131 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 7407 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:33,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 7407 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 06:47:33,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4072 states.
[2024-12-02 06:47:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4072 to 3417.
[2024-12-02 06:47:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3417 states, 2560 states have (on average 1.764453125) internal successors, (4517), 3390 states have internal predecessors, (4517), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27)
[2024-12-02 06:47:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3417 states to 3417 states and 4571 transitions.
[2024-12-02 06:47:33,871 INFO L78 Accepts]: Start accepts. Automaton has 3417 states and 4571 transitions. Word has length 64
[2024-12-02 06:47:33,872 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:33,872 INFO L471 AbstractCegarLoop]: Abstraction has 3417 states and 4571 transitions.
[2024-12-02 06:47:33,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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)
[2024-12-02 06:47:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3417 states and 4571 transitions.
[2024-12-02 06:47:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-12-02 06:47:33,872 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:33,872 INFO L218 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]
[2024-12-02 06:47:33,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2024-12-02 06:47:34,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:34,073 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:34,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:34,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2045940128, now seen corresponding path program 1 times
[2024-12-02 06:47:34,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:34,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2134954909]
[2024-12-02 06:47:34,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:34,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:34,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:34,075 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:34,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-12-02 06:47:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:34,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:34,329 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:34,333 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
[2024-12-02 06:47:34,764 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 06:47:34,765 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
[2024-12-02 06:47:34,777 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:47:34,778 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
[2024-12-02 06:47:34,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:34,784 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:34,785 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:34,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134954909]
[2024-12-02 06:47:34,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134954909] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:34,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:34,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:47:34,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536467916]
[2024-12-02 06:47:34,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:34,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:47:34,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:34,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:47:34,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:47:34,786 INFO L87 Difference]: Start difference. First operand 3417 states and 4571 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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)
[2024-12-02 06:47:39,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:39,157 INFO L93 Difference]: Finished difference Result 3333 states and 4421 transitions.
[2024-12-02 06:47:39,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:47:39,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 64
[2024-12-02 06:47:39,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:39,161 INFO L225 Difference]: With dead ends: 3333
[2024-12-02 06:47:39,161 INFO L226 Difference]: Without dead ends: 3333
[2024-12-02 06:47:39,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-12-02 06:47:39,162 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 1719 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 2622 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:39,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1833 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2622 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2024-12-02 06:47:39,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states.
[2024-12-02 06:47:39,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 3263.
[2024-12-02 06:47:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 2490 states have (on average 1.702409638554217) internal successors, (4239), 3236 states have internal predecessors, (4239), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27)
[2024-12-02 06:47:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 4293 transitions.
[2024-12-02 06:47:39,183 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 4293 transitions. Word has length 64
[2024-12-02 06:47:39,183 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:39,183 INFO L471 AbstractCegarLoop]: Abstraction has 3263 states and 4293 transitions.
[2024-12-02 06:47:39,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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)
[2024-12-02 06:47:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 4293 transitions.
[2024-12-02 06:47:39,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-12-02 06:47:39,183 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:39,183 INFO L218 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, 1, 1]
[2024-12-02 06:47:39,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-12-02 06:47:39,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:39,384 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:39,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:39,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2115533845, now seen corresponding path program 1 times
[2024-12-02 06:47:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:39,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273986678]
[2024-12-02 06:47:39,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:39,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:39,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:39,386 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:39,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-12-02 06:47:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:39,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:39,641 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:39,645 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
[2024-12-02 06:47:39,656 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
[2024-12-02 06:47:39,679 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 23 treesize of output 11
[2024-12-02 06:47:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:39,689 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:39,689 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:39,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273986678]
[2024-12-02 06:47:39,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273986678] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:39,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:39,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:47:39,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713318959]
[2024-12-02 06:47:39,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:39,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:47:39,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:39,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:47:39,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:47:39,690 INFO L87 Difference]: Start difference. First operand 3263 states and 4293 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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)
[2024-12-02 06:47:43,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:43,229 INFO L93 Difference]: Finished difference Result 3262 states and 4291 transitions.
[2024-12-02 06:47:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 06:47:43,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 69
[2024-12-02 06:47:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:43,231 INFO L225 Difference]: With dead ends: 3262
[2024-12-02 06:47:43,231 INFO L226 Difference]: Without dead ends: 3262
[2024-12-02 06:47:43,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 06:47:43,232 INFO L435 NwaCegarLoop]: 1984 mSDtfsCounter, 2 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5347 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:43,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5347 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2024-12-02 06:47:43,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states.
[2024-12-02 06:47:43,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3262.
[2024-12-02 06:47:43,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 2490 states have (on average 1.7016064257028112) internal successors, (4237), 3235 states have internal predecessors, (4237), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27)
[2024-12-02 06:47:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4291 transitions.
[2024-12-02 06:47:43,251 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4291 transitions. Word has length 69
[2024-12-02 06:47:43,251 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:43,251 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 4291 transitions.
[2024-12-02 06:47:43,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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)
[2024-12-02 06:47:43,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4291 transitions.
[2024-12-02 06:47:43,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-12-02 06:47:43,252 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:43,252 INFO L218 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, 1, 1]
[2024-12-02 06:47:43,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2024-12-02 06:47:43,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:43,453 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:43,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:43,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2115533846, now seen corresponding path program 1 times
[2024-12-02 06:47:43,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:43,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180725360]
[2024-12-02 06:47:43,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:43,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:43,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:43,455 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:43,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-12-02 06:47:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:43,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:43,729 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:43,735 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
[2024-12-02 06:47:43,750 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
[2024-12-02 06:47:43,756 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
[2024-12-02 06:47:43,784 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
[2024-12-02 06:47:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:43,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:43,798 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:43,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180725360]
[2024-12-02 06:47:43,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180725360] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:43,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:43,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:47:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101511043]
[2024-12-02 06:47:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:43,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:47:43,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:43,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:47:43,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:47:43,800 INFO L87 Difference]: Start difference. First operand 3262 states and 4291 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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)
[2024-12-02 06:47:48,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:48,779 INFO L93 Difference]: Finished difference Result 3261 states and 4289 transitions.
[2024-12-02 06:47:48,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 06:47:48,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 69
[2024-12-02 06:47:48,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:48,782 INFO L225 Difference]: With dead ends: 3261
[2024-12-02 06:47:48,782 INFO L226 Difference]: Without dead ends: 3261
[2024-12-02 06:47:48,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 06:47:48,783 INFO L435 NwaCegarLoop]: 1984 mSDtfsCounter, 1 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5292 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:48,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5292 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2024-12-02 06:47:48,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states.
[2024-12-02 06:47:48,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 3261.
[2024-12-02 06:47:48,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 2488 states have (on average 1.7021704180064308) internal successors, (4235), 3234 states have internal predecessors, (4235), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27)
[2024-12-02 06:47:48,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 4289 transitions.
[2024-12-02 06:47:48,806 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 4289 transitions. Word has length 69
[2024-12-02 06:47:48,806 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:48,806 INFO L471 AbstractCegarLoop]: Abstraction has 3261 states and 4289 transitions.
[2024-12-02 06:47:48,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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)
[2024-12-02 06:47:48,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 4289 transitions.
[2024-12-02 06:47:48,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-12-02 06:47:48,807 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:48,807 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:47:48,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0
[2024-12-02 06:47:49,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:49,008 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:49,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:49,008 INFO L85 PathProgramCache]: Analyzing trace with hash -357186148, now seen corresponding path program 1 times
[2024-12-02 06:47:49,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:49,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173390445]
[2024-12-02 06:47:49,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:49,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:49,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:49,010 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:49,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-12-02 06:47:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:49,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:49,275 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:49,281 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
[2024-12-02 06:47:49,356 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 23 treesize of output 11
[2024-12-02 06:47:49,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:49,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:49,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:49,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173390445]
[2024-12-02 06:47:49,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173390445] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:49,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:49,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 06:47:49,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196533442]
[2024-12-02 06:47:49,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:49,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 06:47:49,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:49,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 06:47:49,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 06:47:49,369 INFO L87 Difference]: Start difference. First operand 3261 states and 4289 transitions. Second operand has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 06:47:53,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:53,633 INFO L93 Difference]: Finished difference Result 3279 states and 4321 transitions.
[2024-12-02 06:47:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 06:47:53,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77
[2024-12-02 06:47:53,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:53,638 INFO L225 Difference]: With dead ends: 3279
[2024-12-02 06:47:53,638 INFO L226 Difference]: Without dead ends: 3279
[2024-12-02 06:47:53,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-12-02 06:47:53,638 INFO L435 NwaCegarLoop]: 1948 mSDtfsCounter, 27 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 7418 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:53,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 7418 Invalid, 2525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-12-02 06:47:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states.
[2024-12-02 06:47:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3270.
[2024-12-02 06:47:53,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 2496 states have (on average 1.701121794871795) internal successors, (4246), 3241 states have internal predecessors, (4246), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (38), 26 states have call predecessors, (38), 27 states have call successors, (38)
[2024-12-02 06:47:53,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 4311 transitions.
[2024-12-02 06:47:53,665 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 4311 transitions. Word has length 77
[2024-12-02 06:47:53,665 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:53,665 INFO L471 AbstractCegarLoop]: Abstraction has 3270 states and 4311 transitions.
[2024-12-02 06:47:53,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 06:47:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 4311 transitions.
[2024-12-02 06:47:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-12-02 06:47:53,666 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:53,666 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:47:53,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2024-12-02 06:47:53,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:53,866 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:53,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash -357186147, now seen corresponding path program 1 times
[2024-12-02 06:47:53,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:53,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823743148]
[2024-12-02 06:47:53,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:53,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:53,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:53,869 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:53,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-12-02 06:47:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:54,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:54,146 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:54,160 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:47:54,160 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:54,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823743148]
[2024-12-02 06:47:54,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823743148] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:47:54,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:47:54,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:47:54,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084115379]
[2024-12-02 06:47:54,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:47:54,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:47:54,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:54,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:47:54,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:47:54,162 INFO L87 Difference]: Start difference. First operand 3270 states and 4311 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 06:47:54,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:54,226 INFO L93 Difference]: Finished difference Result 3264 states and 4295 transitions.
[2024-12-02 06:47:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:47:54,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77
[2024-12-02 06:47:54,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:54,234 INFO L225 Difference]: With dead ends: 3264
[2024-12-02 06:47:54,234 INFO L226 Difference]: Without dead ends: 3264
[2024-12-02 06:47:54,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:47:54,235 INFO L435 NwaCegarLoop]: 1983 mSDtfsCounter, 0 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5941 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:54,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5941 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:47:54,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states.
[2024-12-02 06:47:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 3264.
[2024-12-02 06:47:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3264 states, 2490 states have (on average 1.702008032128514) internal successors, (4238), 3237 states have internal predecessors, (4238), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:47:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 4295 transitions.
[2024-12-02 06:47:54,264 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 4295 transitions. Word has length 77
[2024-12-02 06:47:54,264 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:54,264 INFO L471 AbstractCegarLoop]: Abstraction has 3264 states and 4295 transitions.
[2024-12-02 06:47:54,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 06:47:54,264 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 4295 transitions.
[2024-12-02 06:47:54,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-12-02 06:47:54,264 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:54,264 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:47:54,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0
[2024-12-02 06:47:54,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:54,465 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:54,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:54,465 INFO L85 PathProgramCache]: Analyzing trace with hash 864656457, now seen corresponding path program 1 times
[2024-12-02 06:47:54,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:54,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321490601]
[2024-12-02 06:47:54,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:47:54,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:54,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:54,467 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:54,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-12-02 06:47:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:47:54,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 06:47:54,733 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:47:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:54,759 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:47:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:47:54,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:47:54,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321490601]
[2024-12-02 06:47:54,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321490601] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:47:54,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:47:54,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-12-02 06:47:54,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873502490]
[2024-12-02 06:47:54,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:47:54,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 06:47:54,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:47:54,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 06:47:54,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-12-02 06:47:54,824 INFO L87 Difference]: Start difference. First operand 3264 states and 4295 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 06:47:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:47:55,030 INFO L93 Difference]: Finished difference Result 3276 states and 4314 transitions.
[2024-12-02 06:47:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 06:47:55,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78
[2024-12-02 06:47:55,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:47:55,036 INFO L225 Difference]: With dead ends: 3276
[2024-12-02 06:47:55,036 INFO L226 Difference]: Without dead ends: 3276
[2024-12-02 06:47:55,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110
[2024-12-02 06:47:55,036 INFO L435 NwaCegarLoop]: 1982 mSDtfsCounter, 5 mSDsluCounter, 7907 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9889 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:47:55,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9889 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 06:47:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states.
[2024-12-02 06:47:55,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3274.
[2024-12-02 06:47:55,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2499 states have (on average 1.7018807523009203) internal successors, (4253), 3246 states have internal predecessors, (4253), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:47:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4310 transitions.
[2024-12-02 06:47:55,081 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4310 transitions. Word has length 78
[2024-12-02 06:47:55,081 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:47:55,081 INFO L471 AbstractCegarLoop]: Abstraction has 3274 states and 4310 transitions.
[2024-12-02 06:47:55,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 06:47:55,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4310 transitions.
[2024-12-02 06:47:55,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-12-02 06:47:55,082 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:47:55,082 INFO L218 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:47:55,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0
[2024-12-02 06:47:55,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:55,282 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:47:55,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:47:55,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1816955100, now seen corresponding path program 2 times
[2024-12-02 06:47:55,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:47:55,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472152189]
[2024-12-02 06:47:55,283 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:47:55,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:47:55,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:47:55,285 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:47:55,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2024-12-02 06:48:07,278 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:48:07,278 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:48:07,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-12-02 06:48:07,293 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:48:07,389 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:48:07,390 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
[2024-12-02 06:48:07,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:48:07,559 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:48:07,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:48:07,599 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 33 treesize of output 15
[2024-12-02 06:48:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 06:48:07,617 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:48:07,695 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size
[2024-12-02 06:48:07,695 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 25 treesize of output 24
[2024-12-02 06:48:07,702 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1726 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem37#1.base| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_1726) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false
[2024-12-02 06:48:07,704 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:48:07,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472152189]
[2024-12-02 06:48:07,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472152189] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:48:07,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1951477238]
[2024-12-02 06:48:07,704 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:48:07,704 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 06:48:07,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 06:48:07,706 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 06:48:07,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process
[2024-12-02 06:48:09,023 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:48:09,023 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:48:09,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 06:48:09,053 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:48:09,201 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:48:09,201 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:48:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:48:09,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1951477238] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:48:09,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 06:48:09,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24
[2024-12-02 06:48:09,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092331094]
[2024-12-02 06:48:09,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:48:09,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-12-02 06:48:09,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:48:09,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-12-02 06:48:09,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650
[2024-12-02 06:48:09,419 INFO L87 Difference]: Start difference. First operand 3274 states and 4310 transitions. Second operand has 24 states, 23 states have (on average 6.304347826086956) internal successors, (145), 23 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 06:48:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:48:23,005 INFO L93 Difference]: Finished difference Result 3290 states and 4336 transitions.
[2024-12-02 06:48:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states.
[2024-12-02 06:48:23,005 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.304347826086956) internal successors, (145), 23 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 81
[2024-12-02 06:48:23,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:48:23,010 INFO L225 Difference]: With dead ends: 3290
[2024-12-02 06:48:23,010 INFO L226 Difference]: Without dead ends: 3286
[2024-12-02 06:48:23,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756
[2024-12-02 06:48:23,010 INFO L435 NwaCegarLoop]: 1205 mSDtfsCounter, 1752 mSDsluCounter, 13927 mSDsCounter, 0 mSdLazyCounter, 11173 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 15132 SdHoareTripleChecker+Invalid, 11219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time
[2024-12-02 06:48:23,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 15132 Invalid, 11219 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 11173 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time]
[2024-12-02 06:48:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states.
[2024-12-02 06:48:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3282.
[2024-12-02 06:48:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 2508 states have (on average 1.6997607655502391) internal successors, (4263), 3254 states have internal predecessors, (4263), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:48:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 4320 transitions.
[2024-12-02 06:48:23,033 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 4320 transitions. Word has length 81
[2024-12-02 06:48:23,033 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:48:23,033 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 4320 transitions.
[2024-12-02 06:48:23,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.304347826086956) internal successors, (145), 23 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 06:48:23,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 4320 transitions.
[2024-12-02 06:48:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2024-12-02 06:48:23,034 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:48:23,034 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:48:23,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0
[2024-12-02 06:48:23,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0
[2024-12-02 06:48:23,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:48:23,435 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:48:23,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:48:23,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1913986627, now seen corresponding path program 1 times
[2024-12-02 06:48:23,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:48:23,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533859924]
[2024-12-02 06:48:23,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:48:23,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:48:23,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:48:23,437 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:48:23,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process
[2024-12-02 06:48:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:48:23,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 06:48:23,788 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:48:23,934 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:48:23,934 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:48:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:48:24,430 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:48:24,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533859924]
[2024-12-02 06:48:24,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533859924] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:48:24,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:48:24,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26
[2024-12-02 06:48:24,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907332828]
[2024-12-02 06:48:24,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:48:24,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-12-02 06:48:24,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:48:24,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-12-02 06:48:24,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650
[2024-12-02 06:48:24,431 INFO L87 Difference]: Start difference. First operand 3282 states and 4320 transitions. Second operand has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 06:48:26,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:48:26,102 INFO L93 Difference]: Finished difference Result 3306 states and 4359 transitions.
[2024-12-02 06:48:26,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2024-12-02 06:48:26,103 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87
[2024-12-02 06:48:26,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:48:26,110 INFO L225 Difference]: With dead ends: 3306
[2024-12-02 06:48:26,110 INFO L226 Difference]: Without dead ends: 3300
[2024-12-02 06:48:26,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162
[2024-12-02 06:48:26,112 INFO L435 NwaCegarLoop]: 1982 mSDtfsCounter, 25 mSDsluCounter, 21758 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 23740 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 06:48:26,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 23740 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 06:48:26,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states.
[2024-12-02 06:48:26,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300.
[2024-12-02 06:48:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2526 states have (on average 1.6967537608867775) internal successors, (4286), 3272 states have internal predecessors, (4286), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:48:26,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4343 transitions.
[2024-12-02 06:48:26,143 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4343 transitions. Word has length 87
[2024-12-02 06:48:26,143 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:48:26,143 INFO L471 AbstractCegarLoop]: Abstraction has 3300 states and 4343 transitions.
[2024-12-02 06:48:26,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 06:48:26,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4343 transitions.
[2024-12-02 06:48:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2024-12-02 06:48:26,144 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:48:26,144 INFO L218 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:48:26,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0
[2024-12-02 06:48:26,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:48:26,345 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:48:26,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:48:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1348148093, now seen corresponding path program 2 times
[2024-12-02 06:48:26,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:48:26,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033978087]
[2024-12-02 06:48:26,346 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:48:26,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:48:26,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:48:26,348 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:48:26,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process
[2024-12-02 06:49:16,202 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:49:16,202 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:49:16,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 64 conjuncts are in the unsatisfiable core
[2024-12-02 06:49:16,237 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:49:16,367 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:49:16,367 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
[2024-12-02 06:49:16,375 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 6 treesize of output 5
[2024-12-02 06:49:16,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:49:16,415 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
[2024-12-02 06:49:16,537 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 22 treesize of output 10
[2024-12-02 06:49:16,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:49:17,028 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:49:17,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:49:17,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:49:17,089 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 31 treesize of output 13
[2024-12-02 06:49:17,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:49:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2024-12-02 06:49:17,122 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:49:17,730 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:49:17,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033978087]
[2024-12-02 06:49:17,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033978087] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:49:17,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1559678953]
[2024-12-02 06:49:17,730 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:49:17,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 06:49:17,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 06:49:17,732 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 06:49:17,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process
[2024-12-02 06:49:19,181 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:49:19,181 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:49:19,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-12-02 06:49:19,216 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:49:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:49:20,101 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:49:22,150 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:49:22,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1559678953] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:49:22,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 06:49:22,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58
[2024-12-02 06:49:22,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829345332]
[2024-12-02 06:49:22,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:49:22,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states
[2024-12-02 06:49:22,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:49:22,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants.
[2024-12-02 06:49:22,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=700, Invalid=2951, Unknown=9, NotChecked=0, Total=3660
[2024-12-02 06:49:22,153 INFO L87 Difference]: Start difference. First operand 3300 states and 4343 transitions. Second operand has 58 states, 57 states have (on average 3.175438596491228) internal successors, (181), 58 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 06:50:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:50:11,540 INFO L93 Difference]: Finished difference Result 3396 states and 4494 transitions.
[2024-12-02 06:50:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states.
[2024-12-02 06:50:11,541 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.175438596491228) internal successors, (181), 58 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 99
[2024-12-02 06:50:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:50:11,544 INFO L225 Difference]: With dead ends: 3396
[2024-12-02 06:50:11,544 INFO L226 Difference]: Without dead ends: 3384
[2024-12-02 06:50:11,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5829 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=5258, Invalid=18909, Unknown=13, NotChecked=0, Total=24180
[2024-12-02 06:50:11,547 INFO L435 NwaCegarLoop]: 1231 mSDtfsCounter, 1758 mSDsluCounter, 35814 mSDsCounter, 0 mSdLazyCounter, 29097 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 37045 SdHoareTripleChecker+Invalid, 29209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 29097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time
[2024-12-02 06:50:11,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 37045 Invalid, 29209 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [112 Valid, 29097 Invalid, 0 Unknown, 0 Unchecked, 38.4s Time]
[2024-12-02 06:50:11,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states.
[2024-12-02 06:50:11,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3382.
[2024-12-02 06:50:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 2608 states have (on average 1.679064417177914) internal successors, (4379), 3353 states have internal predecessors, (4379), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:50:11,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 4436 transitions.
[2024-12-02 06:50:11,569 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 4436 transitions. Word has length 99
[2024-12-02 06:50:11,569 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:50:11,569 INFO L471 AbstractCegarLoop]: Abstraction has 3382 states and 4436 transitions.
[2024-12-02 06:50:11,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.175438596491228) internal successors, (181), 58 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 06:50:11,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 4436 transitions.
[2024-12-02 06:50:11,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-12-02 06:50:11,570 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:50:11,570 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:50:11,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0
[2024-12-02 06:50:11,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0
[2024-12-02 06:50:11,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt
[2024-12-02 06:50:11,971 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:50:11,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:50:11,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1358578009, now seen corresponding path program 1 times
[2024-12-02 06:50:11,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:50:11,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776055134]
[2024-12-02 06:50:11,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:11,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:50:11,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:50:11,973 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:50:11,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process
[2024-12-02 06:50:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:12,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 58 conjuncts are in the unsatisfiable core
[2024-12-02 06:50:12,472 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:50:12,475 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
[2024-12-02 06:50:12,585 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:50:12,585 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
[2024-12-02 06:50:12,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:50:12,868 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:50:12,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32
[2024-12-02 06:50:12,908 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:50:12,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:50:12,941 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 33 treesize of output 15
[2024-12-02 06:50:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:50:12,955 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:50:12,988 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size
[2024-12-02 06:50:12,988 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 25 treesize of output 24
[2024-12-02 06:50:13,033 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3012 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_3012) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false
[2024-12-02 06:50:13,339 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3012 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3058 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_3058)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_3012) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false
[2024-12-02 06:50:13,341 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:50:13,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776055134]
[2024-12-02 06:50:13,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776055134] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:50:13,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [831483602]
[2024-12-02 06:50:13,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:13,342 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 06:50:13,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 06:50:13,343 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 06:50:13,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process
[2024-12-02 06:50:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:16,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 62 conjuncts are in the unsatisfiable core
[2024-12-02 06:50:16,333 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:50:16,338 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
[2024-12-02 06:50:16,450 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2024-12-02 06:50:16,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2024-12-02 06:50:16,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:50:16,616 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 24 treesize of output 12
[2024-12-02 06:50:17,389 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:50:17,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:50:17,536 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:50:17,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:50:17,560 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 33 treesize of output 15
[2024-12-02 06:50:17,601 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:50:17,601 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:50:17,614 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3481 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_3481) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false
[2024-12-02 06:50:17,622 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3481 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3481) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false
[2024-12-02 06:50:17,976 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3527 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3481 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_3527))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3481)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-12-02 06:50:17,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [831483602] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:50:17,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:50:17,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17
[2024-12-02 06:50:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993026947]
[2024-12-02 06:50:17,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:50:17,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-12-02 06:50:17,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:50:17,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-12-02 06:50:17,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=311, Unknown=12, NotChecked=200, Total=600
[2024-12-02 06:50:17,980 INFO L87 Difference]: Start difference. First operand 3382 states and 4436 transitions. Second operand has 18 states, 15 states have (on average 6.533333333333333) internal successors, (98), 18 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 06:50:24,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:50:24,922 INFO L93 Difference]: Finished difference Result 3383 states and 4438 transitions.
[2024-12-02 06:50:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 06:50:24,922 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 6.533333333333333) internal successors, (98), 18 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 124
[2024-12-02 06:50:24,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:50:24,928 INFO L225 Difference]: With dead ends: 3383
[2024-12-02 06:50:24,928 INFO L226 Difference]: Without dead ends: 3383
[2024-12-02 06:50:24,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=342, Unknown=12, NotChecked=210, Total=650
[2024-12-02 06:50:24,929 INFO L435 NwaCegarLoop]: 1207 mSDtfsCounter, 1682 mSDsluCounter, 5743 mSDsCounter, 0 mSdLazyCounter, 5313 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 6950 SdHoareTripleChecker+Invalid, 5347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 5313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2024-12-02 06:50:24,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 6950 Invalid, 5347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 5313 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2024-12-02 06:50:24,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states.
[2024-12-02 06:50:24,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3381.
[2024-12-02 06:50:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 2608 states have (on average 1.67829754601227) internal successors, (4377), 3352 states have internal predecessors, (4377), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:50:24,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4434 transitions.
[2024-12-02 06:50:24,964 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4434 transitions. Word has length 124
[2024-12-02 06:50:24,964 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:50:24,964 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4434 transitions.
[2024-12-02 06:50:24,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 6.533333333333333) internal successors, (98), 18 states have internal predecessors, (98), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 06:50:24,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4434 transitions.
[2024-12-02 06:50:24,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-12-02 06:50:24,965 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:50:24,965 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:50:24,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0
[2024-12-02 06:50:25,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0
[2024-12-02 06:50:25,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt
[2024-12-02 06:50:25,366 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr87REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:50:25,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:50:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1358578008, now seen corresponding path program 1 times
[2024-12-02 06:50:25,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:50:25,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100120891]
[2024-12-02 06:50:25,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:25,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:50:25,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:50:25,368 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:50:25,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process
[2024-12-02 06:50:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:25,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 110 conjuncts are in the unsatisfiable core
[2024-12-02 06:50:25,890 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:50:25,995 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:50:25,995 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
[2024-12-02 06:50:26,001 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 6 treesize of output 5
[2024-12-02 06:50:26,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:50:26,028 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
[2024-12-02 06:50:26,104 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 22 treesize of output 10
[2024-12-02 06:50:26,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:50:26,690 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:50:26,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:50:26,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:50:26,765 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:50:26,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:50:26,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:50:26,792 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 31 treesize of output 13
[2024-12-02 06:50:26,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:50:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:50:26,820 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:50:26,952 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3995 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_3995) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1)))))) is different from false
[2024-12-02 06:50:26,986 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3995 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_3995) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false
[2024-12-02 06:50:28,041 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4087 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4088 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_4087) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_4088) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_3996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3995 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4087 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4088 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_4088))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_4087) .cse2 v_ArrVal_3996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_3995) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false
[2024-12-02 06:50:28,048 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:50:28,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100120891]
[2024-12-02 06:50:28,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100120891] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:50:28,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [635004241]
[2024-12-02 06:50:28,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:28,049 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 06:50:28,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 06:50:28,050 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 06:50:28,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process
[2024-12-02 06:50:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:31,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 74 conjuncts are in the unsatisfiable core
[2024-12-02 06:50:31,052 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:50:31,056 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
[2024-12-02 06:50:31,060 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
[2024-12-02 06:50:31,452 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2024-12-02 06:50:31,452 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
[2024-12-02 06:50:31,474 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:50:31,474 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
[2024-12-02 06:50:31,534 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 15 treesize of output 1
[2024-12-02 06:50:31,543 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 11 treesize of output 7
[2024-12-02 06:50:31,648 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 17 treesize of output 9
[2024-12-02 06:50:31,694 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 7 treesize of output 3
[2024-12-02 06:50:32,263 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 06:50:32,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 11
[2024-12-02 06:50:32,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34
[2024-12-02 06:50:32,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 22
[2024-12-02 06:50:32,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 06:50:32,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 22
[2024-12-02 06:50:32,658 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 06:50:32,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7
[2024-12-02 06:50:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:50:32,743 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:50:32,993 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 239 treesize of output 167
[2024-12-02 06:51:12,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [635004241] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:51:12,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:51:12,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19
[2024-12-02 06:51:12,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449631924]
[2024-12-02 06:51:12,615 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:51:12,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-12-02 06:51:12,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:51:12,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-12-02 06:51:12,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=12, NotChecked=144, Total=756
[2024-12-02 06:51:12,615 INFO L87 Difference]: Start difference. First operand 3381 states and 4434 transitions. Second operand has 20 states, 17 states have (on average 9.117647058823529) internal successors, (155), 20 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 06:53:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:53:38,155 INFO L93 Difference]: Finished difference Result 5040 states and 6639 transitions.
[2024-12-02 06:53:38,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 06:53:38,156 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 9.117647058823529) internal successors, (155), 20 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 124
[2024-12-02 06:53:38,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:53:38,164 INFO L225 Difference]: With dead ends: 5040
[2024-12-02 06:53:38,164 INFO L226 Difference]: Without dead ends: 5040
[2024-12-02 06:53:38,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 35.3s TimeCoverageRelationStatistics Valid=163, Invalid=893, Unknown=12, NotChecked=192, Total=1260
[2024-12-02 06:53:38,165 INFO L435 NwaCegarLoop]: 915 mSDtfsCounter, 4415 mSDsluCounter, 9718 mSDsCounter, 0 mSdLazyCounter, 16759 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4431 SdHoareTripleChecker+Valid, 10633 SdHoareTripleChecker+Invalid, 16794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 16759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 142.7s IncrementalHoareTripleChecker+Time
[2024-12-02 06:53:38,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4431 Valid, 10633 Invalid, 16794 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [35 Valid, 16759 Invalid, 0 Unknown, 0 Unchecked, 142.7s Time]
[2024-12-02 06:53:38,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states.
[2024-12-02 06:53:38,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 3380.
[2024-12-02 06:53:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 2608 states have (on average 1.6775306748466257) internal successors, (4375), 3351 states have internal predecessors, (4375), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:53:38,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4432 transitions.
[2024-12-02 06:53:38,216 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 4432 transitions. Word has length 124
[2024-12-02 06:53:38,216 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:53:38,216 INFO L471 AbstractCegarLoop]: Abstraction has 3380 states and 4432 transitions.
[2024-12-02 06:53:38,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 9.117647058823529) internal successors, (155), 20 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 06:53:38,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 4432 transitions.
[2024-12-02 06:53:38,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-12-02 06:53:38,217 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:53:38,217 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:53:38,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0
[2024-12-02 06:53:38,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0
[2024-12-02 06:53:38,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt
[2024-12-02 06:53:38,618 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr90REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:53:38,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:53:38,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1920279389, now seen corresponding path program 1 times
[2024-12-02 06:53:38,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:53:38,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147878977]
[2024-12-02 06:53:38,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:53:38,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:53:38,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:53:38,620 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:53:38,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process
[2024-12-02 06:53:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:53:39,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 60 conjuncts are in the unsatisfiable core
[2024-12-02 06:53:39,187 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:53:39,202 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
[2024-12-02 06:53:40,107 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:53:40,107 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
[2024-12-02 06:53:40,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:53:41,756 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:53:41,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32
[2024-12-02 06:53:42,033 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:53:42,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:53:42,535 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:53:42,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:53:42,612 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 33 treesize of output 15
[2024-12-02 06:53:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:53:42,752 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:53:43,498 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size
[2024-12-02 06:53:43,499 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 37 treesize of output 36
[2024-12-02 06:53:43,529 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4999 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4998 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4998))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4999)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem39#1.base|)) is different from false
[2024-12-02 06:53:43,568 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4999 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4998 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_4998))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4999)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false
[2024-12-02 06:53:44,672 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4999 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4998 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5045 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5045)) (.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_4998))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4999)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3)))) is different from false
[2024-12-02 06:53:44,681 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:53:44,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147878977]
[2024-12-02 06:53:44,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147878977] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:53:44,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [150311675]
[2024-12-02 06:53:44,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:53:44,681 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 06:53:44,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 06:53:44,683 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 06:53:44,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process
[2024-12-02 06:54:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:54:03,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 64 conjuncts are in the unsatisfiable core
[2024-12-02 06:54:03,670 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:54:03,693 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
[2024-12-02 06:54:04,916 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2024-12-02 06:54:04,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2024-12-02 06:54:05,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:54:06,079 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 24 treesize of output 12
[2024-12-02 06:54:10,085 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:54:10,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:54:10,801 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:54:10,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:54:11,296 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:54:11,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:54:11,410 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 33 treesize of output 15
[2024-12-02 06:54:11,702 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:54:11,702 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:54:11,775 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_5484) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false
[2024-12-02 06:54:11,812 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5484) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false
[2024-12-02 06:54:11,862 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5483 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5483))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5484)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-12-02 06:54:11,897 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5483 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5483))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5484)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-12-02 06:54:12,975 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5483 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5484 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5530 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5530))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5483)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5484)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-12-02 06:54:12,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [150311675] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:54:12,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:54:12,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19
[2024-12-02 06:54:12,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346778310]
[2024-12-02 06:54:12,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:54:12,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-12-02 06:54:12,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:54:12,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-12-02 06:54:12,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=412, Unknown=22, NotChecked=392, Total=930
[2024-12-02 06:54:12,986 INFO L87 Difference]: Start difference. First operand 3380 states and 4432 transitions. Second operand has 20 states, 17 states have (on average 6.117647058823529) internal successors, (104), 20 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 06:55:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:55:18,423 INFO L93 Difference]: Finished difference Result 3381 states and 4434 transitions.
[2024-12-02 06:55:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-02 06:55:18,424 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 6.117647058823529) internal successors, (104), 20 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 127
[2024-12-02 06:55:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:55:18,430 INFO L225 Difference]: With dead ends: 3381
[2024-12-02 06:55:18,430 INFO L226 Difference]: Without dead ends: 3381
[2024-12-02 06:55:18,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=114, Invalid=448, Unknown=22, NotChecked=408, Total=992
[2024-12-02 06:55:18,431 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 1681 mSDsluCounter, 8934 mSDsCounter, 0 mSdLazyCounter, 8012 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 10140 SdHoareTripleChecker+Invalid, 8046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 8012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:55:18,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 10140 Invalid, 8046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 8012 Invalid, 0 Unknown, 0 Unchecked, 65.0s Time]
[2024-12-02 06:55:18,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states.
[2024-12-02 06:55:18,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3379.
[2024-12-02 06:55:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3379 states, 2608 states have (on average 1.6767638036809815) internal successors, (4373), 3350 states have internal predecessors, (4373), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:55:18,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3379 states to 3379 states and 4430 transitions.
[2024-12-02 06:55:18,456 INFO L78 Accepts]: Start accepts. Automaton has 3379 states and 4430 transitions. Word has length 127
[2024-12-02 06:55:18,456 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:55:18,456 INFO L471 AbstractCegarLoop]: Abstraction has 3379 states and 4430 transitions.
[2024-12-02 06:55:18,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 6.117647058823529) internal successors, (104), 20 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 06:55:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand 3379 states and 4430 transitions.
[2024-12-02 06:55:18,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-12-02 06:55:18,457 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:55:18,457 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:55:18,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0
[2024-12-02 06:55:18,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0
[2024-12-02 06:55:18,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt
[2024-12-02 06:55:18,858 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr91REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:55:18,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:55:18,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1920279388, now seen corresponding path program 1 times
[2024-12-02 06:55:18,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:55:18,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403578433]
[2024-12-02 06:55:18,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:55:18,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:55:18,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:55:18,860 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:55:18,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process
[2024-12-02 06:55:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:55:19,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 113 conjuncts are in the unsatisfiable core
[2024-12-02 06:55:19,490 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:55:20,309 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
[2024-12-02 06:55:20,390 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:55:20,390 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
[2024-12-02 06:55:20,515 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
[2024-12-02 06:55:20,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:55:21,036 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 22 treesize of output 10
[2024-12-02 06:55:21,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:55:24,756 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:55:24,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:55:24,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:55:25,363 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:55:25,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:55:25,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:55:25,927 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:55:25,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:55:25,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:55:26,090 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 31 treesize of output 13
[2024-12-02 06:55:26,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:55:26,294 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:55:26,294 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:55:26,899 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-12-02 06:55:26,976 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv8 32)) (bvadd .cse2 (_ bv12 32)))))))) is different from false
[2024-12-02 06:55:27,113 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6014))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6013) .cse0 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6013) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6014) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false
[2024-12-02 06:55:27,210 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_6014))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_6013) .cse1 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_6013) (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_6014) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false
[2024-12-02 06:55:30,493 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6107 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6108))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6107) .cse1 v_ArrVal_6013) (select (select (store .cse2 .cse1 v_ArrVal_6014) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6016))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6107 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6015 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6016 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6014 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6108))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6014))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6107) .cse4 v_ArrVal_6013) .cse5 v_ArrVal_6016) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6015) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false
[2024-12-02 06:55:30,518 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:55:30,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403578433]
[2024-12-02 06:55:30,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403578433] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:55:30,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1002994854]
[2024-12-02 06:55:30,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:55:30,518 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 06:55:30,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 06:55:30,520 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 06:55:30,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process
[2024-12-02 06:55:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:55:53,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 115 conjuncts are in the unsatisfiable core
[2024-12-02 06:55:53,914 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:55:53,932 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
[2024-12-02 06:55:55,027 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
[2024-12-02 06:55:55,151 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:55:55,152 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
[2024-12-02 06:55:55,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:55:55,220 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
[2024-12-02 06:55:55,593 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 22 treesize of output 10
[2024-12-02 06:55:55,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:55:59,484 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:55:59,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:55:59,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:55:59,890 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:55:59,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:55:59,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:56:00,234 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:56:00,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:56:00,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:56:00,399 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 31 treesize of output 13
[2024-12-02 06:56:00,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:56:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:56:00,459 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:56:00,661 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd (_ bv12 32) .cse1)))))) is different from false
[2024-12-02 06:56:00,734 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false
[2024-12-02 06:56:00,939 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6593))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6592) .cse0 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6592) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6593) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false
[2024-12-02 06:56:01,075 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6592) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6593) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6593))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6592) .cse3 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false
[2024-12-02 06:56:04,375 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6686 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6687 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6687))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6686) .cse1 v_ArrVal_6592) (select (select (store .cse2 .cse1 v_ArrVal_6593) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6595))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6686 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6687 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6594 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6687))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6593))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6686) .cse4 v_ArrVal_6592) .cse5 v_ArrVal_6595) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false
[2024-12-02 06:56:04,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1002994854] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:56:04,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:56:04,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10
[2024-12-02 06:56:04,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840287504]
[2024-12-02 06:56:04,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:56:04,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-02 06:56:04,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:56:04,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-02 06:56:04,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=134, Unknown=10, NotChecked=310, Total=506
[2024-12-02 06:56:04,399 INFO L87 Difference]: Start difference. First operand 3379 states and 4430 transitions. Second operand has 11 states, 9 states have (on average 9.666666666666666) internal successors, (87), 11 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 06:57:23,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:57:23,712 INFO L93 Difference]: Finished difference Result 3378 states and 4428 transitions.
[2024-12-02 06:57:23,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 06:57:23,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.666666666666666) internal successors, (87), 11 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127
[2024-12-02 06:57:23,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:57:23,719 INFO L225 Difference]: With dead ends: 3378
[2024-12-02 06:57:23,719 INFO L226 Difference]: Without dead ends: 3378
[2024-12-02 06:57:23,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 248 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=90, Invalid=282, Unknown=10, NotChecked=430, Total=812
[2024-12-02 06:57:23,720 INFO L435 NwaCegarLoop]: 1232 mSDtfsCounter, 1647 mSDsluCounter, 3982 mSDsCounter, 0 mSdLazyCounter, 6962 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 5214 SdHoareTripleChecker+Invalid, 6972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 6962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:57:23,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 5214 Invalid, 6972 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 6962 Invalid, 0 Unknown, 0 Unchecked, 78.1s Time]
[2024-12-02 06:57:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3378 states.
[2024-12-02 06:57:23,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3378 to 3378.
[2024-12-02 06:57:23,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3378 states, 2608 states have (on average 1.6759969325153374) internal successors, (4371), 3349 states have internal predecessors, (4371), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:57:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3378 states to 3378 states and 4428 transitions.
[2024-12-02 06:57:23,757 INFO L78 Accepts]: Start accepts. Automaton has 3378 states and 4428 transitions. Word has length 127
[2024-12-02 06:57:23,757 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:57:23,757 INFO L471 AbstractCegarLoop]: Abstraction has 3378 states and 4428 transitions.
[2024-12-02 06:57:23,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.666666666666666) internal successors, (87), 11 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 06:57:23,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3378 states and 4428 transitions.
[2024-12-02 06:57:23,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-12-02 06:57:23,758 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:57:23,758 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:57:23,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0
[2024-12-02 06:57:23,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0
[2024-12-02 06:57:24,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:57:24,159 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr94REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:57:24,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:57:24,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1921468494, now seen corresponding path program 1 times
[2024-12-02 06:57:24,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:57:24,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234294376]
[2024-12-02 06:57:24,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:57:24,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:57:24,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:57:24,163 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:57:24,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process
[2024-12-02 06:57:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:57:24,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 61 conjuncts are in the unsatisfiable core
[2024-12-02 06:57:25,004 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:57:26,281 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:57:26,281 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
[2024-12-02 06:57:26,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:57:28,717 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:57:28,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32
[2024-12-02 06:57:29,123 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:57:29,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32
[2024-12-02 06:57:29,565 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:57:29,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32
[2024-12-02 06:57:30,028 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:57:30,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:57:30,387 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 33 treesize of output 15
[2024-12-02 06:57:30,598 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:57:30,599 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:57:30,977 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size
[2024-12-02 06:57:30,978 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 25 treesize of output 24
[2024-12-02 06:57:31,018 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7140 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem41#1.base| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_7140) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false
[2024-12-02 06:57:31,071 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7140 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_7140) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false
[2024-12-02 06:57:31,149 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7140 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7139 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7139)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_7140) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false
[2024-12-02 06:57:31,204 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7140 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7139 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7139))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_7140) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false
[2024-12-02 06:57:31,285 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7140 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7138 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7139 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7138))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7139)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_7140) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false
[2024-12-02 06:57:31,343 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7140 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7138 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7139 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7138))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7139)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_7140) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false
[2024-12-02 06:57:32,899 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7140 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7186 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7138 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7139 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7186))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7138)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7139)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_7140) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false
[2024-12-02 06:57:32,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:57:32,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234294376]
[2024-12-02 06:57:32,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234294376] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:57:32,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1007740540]
[2024-12-02 06:57:32,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:57:32,913 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 06:57:32,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 06:57:32,916 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 06:57:32,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process
[2024-12-02 06:58:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:58:11,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 66 conjuncts are in the unsatisfiable core
[2024-12-02 06:58:11,833 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:58:11,859 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
[2024-12-02 06:58:13,292 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2024-12-02 06:58:13,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2024-12-02 06:58:13,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:58:14,684 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 24 treesize of output 12
[2024-12-02 06:58:20,345 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:58:20,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:58:21,379 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:58:21,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:58:22,077 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:58:22,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:58:22,800 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:58:22,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43
[2024-12-02 06:58:22,960 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 33 treesize of output 15
[2024-12-02 06:58:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:58:23,377 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:58:24,058 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7641 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7641) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false
[2024-12-02 06:58:24,136 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7640 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7640))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7641)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (_ bv0 1))) is different from false
[2024-12-02 06:58:24,189 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7640 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7640))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7641)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false
[2024-12-02 06:58:24,269 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7640 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7639))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7640)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7641)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (_ bv0 1))) is different from false
[2024-12-02 06:58:24,326 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7640 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7639))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7640)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7641)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-12-02 06:58:25,855 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7687 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7640 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7687))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7639)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7640)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7641)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false
[2024-12-02 06:58:25,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1007740540] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:58:25,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:58:25,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21
[2024-12-02 06:58:25,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058147475]
[2024-12-02 06:58:25,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:58:25,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-12-02 06:58:25,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:58:25,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-12-02 06:58:25,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=467, Unknown=23, NotChecked=728, Total=1332
[2024-12-02 06:58:25,872 INFO L87 Difference]: Start difference. First operand 3378 states and 4428 transitions. Second operand has 22 states, 19 states have (on average 6.0) internal successors, (114), 22 states have internal predecessors, (114), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 06:59:36,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:59:36,142 INFO L93 Difference]: Finished difference Result 3379 states and 4430 transitions.
[2024-12-02 06:59:36,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-12-02 06:59:36,143 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 6.0) internal successors, (114), 22 states have internal predecessors, (114), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 130
[2024-12-02 06:59:36,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:59:36,147 INFO L225 Difference]: With dead ends: 3379
[2024-12-02 06:59:36,147 INFO L226 Difference]: Without dead ends: 3379
[2024-12-02 06:59:36,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=123, Invalid=506, Unknown=23, NotChecked=754, Total=1406
[2024-12-02 06:59:36,148 INFO L435 NwaCegarLoop]: 1205 mSDtfsCounter, 1655 mSDsluCounter, 9028 mSDsCounter, 0 mSdLazyCounter, 7953 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 10233 SdHoareTripleChecker+Invalid, 7971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 7953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.7s IncrementalHoareTripleChecker+Time
[2024-12-02 06:59:36,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 10233 Invalid, 7971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 7953 Invalid, 0 Unknown, 0 Unchecked, 69.7s Time]
[2024-12-02 06:59:36,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states.
[2024-12-02 06:59:36,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3377.
[2024-12-02 06:59:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 2608 states have (on average 1.6752300613496933) internal successors, (4369), 3348 states have internal predecessors, (4369), 27 states have call successors, (27), 5 states have call predecessors, (27), 6 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30)
[2024-12-02 06:59:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 4426 transitions.
[2024-12-02 06:59:36,178 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 4426 transitions. Word has length 130
[2024-12-02 06:59:36,178 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:59:36,178 INFO L471 AbstractCegarLoop]: Abstraction has 3377 states and 4426 transitions.
[2024-12-02 06:59:36,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 6.0) internal successors, (114), 22 states have internal predecessors, (114), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 06:59:36,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 4426 transitions.
[2024-12-02 06:59:36,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-12-02 06:59:36,179 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:59:36,179 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:59:36,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0
[2024-12-02 06:59:36,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0
[2024-12-02 06:59:36,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:59:36,580 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] ===
[2024-12-02 06:59:36,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:59:36,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1921468495, now seen corresponding path program 1 times
[2024-12-02 06:59:36,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:59:36,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2042001470]
[2024-12-02 06:59:36,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:59:36,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:59:36,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:59:36,582 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:59:36,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process
[2024-12-02 06:59:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:59:37,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 116 conjuncts are in the unsatisfiable core
[2024-12-02 06:59:37,272 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:59:38,199 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 06:59:38,199 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
[2024-12-02 06:59:38,233 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 6 treesize of output 5
[2024-12-02 06:59:38,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-02 06:59:38,362 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
[2024-12-02 06:59:38,855 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 22 treesize of output 10
[2024-12-02 06:59:38,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:59:42,264 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:59:42,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:59:42,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:59:42,789 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:59:42,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:59:42,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:59:43,258 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:59:43,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:59:43,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:59:43,756 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size
[2024-12-02 06:59:43,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57
[2024-12-02 06:59:43,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13
[2024-12-02 06:59:43,898 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 31 treesize of output 13
[2024-12-02 06:59:43,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3
[2024-12-02 06:59:44,094 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2024-12-02 06:59:44,094 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:59:44,618 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8189 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_8189) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv20 32) .cse1) (bvadd (_ bv24 32) .cse1)))))) is different from false
[2024-12-02 06:59:44,686 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8189 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_8189) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false
[2024-12-02 06:59:44,850 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8187 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8188))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8187) .cse0 v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_8189) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_8188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8187 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8187) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8188) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse3) (bvadd (_ bv24 32) .cse3)))))) is different from false
[2024-12-02 06:59:44,960 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8187 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_8187) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_8188) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8187 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_8188))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_8187) .cse3 v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_8189) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false
[2024-12-02 06:59:45,279 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8187 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8186 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8185 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8186))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8185) .cse1 v_ArrVal_8187) (select (select (store .cse2 .cse1 v_ArrVal_8188) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8190))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8187 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8186 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8185 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8186))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_8188))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8185) .cse4 v_ArrVal_8187) .cse5 v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_8189) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false
[2024-12-02 06:59:54,546 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8187 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8186 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8185 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8282 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8281 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8281))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_8186))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8188))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8282) .cse0 v_ArrVal_8185) .cse1 v_ArrVal_8187) .cse2 v_ArrVal_8190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8189) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_8188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8187 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8186 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8185 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8282 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8281 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8281))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_8186))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8282) .cse8 v_ArrVal_8185) .cse9 v_ArrVal_8187) (select (select (store .cse10 .cse9 v_ArrVal_8188) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8190))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false
[2024-12-02 06:59:54,584 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:59:54,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042001470]
[2024-12-02 06:59:54,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042001470] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:59:54,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [481937704]
[2024-12-02 06:59:54,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:59:54,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 06:59:54,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 06:59:54,586 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 06:59:54,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fe63e4-9cff-4c49-b558-fcc03c398952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process