./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:32:46,164 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:32:46,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-11-19 07:32:46,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:32:46,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:32:46,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:32:46,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:32:46,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:32:46,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:32:46,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:32:46,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:32:46,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:32:46,365 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:32:46,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:32:46,367 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:32:46,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:32:46,368 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:32:46,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:32:46,369 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:32:46,369 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:32:46,369 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:32:46,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:32:46,370 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:32:46,371 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:32:46,371 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:32:46,372 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:32:46,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:32:46,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:32:46,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:32:46,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:32:46,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:32:46,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:32:46,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:32:46,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:32:46,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:32:46,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:32:46,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:32:46,377 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:32:46,377 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735
[2023-11-19 07:32:46,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:32:46,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:32:46,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:32:46,679 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:32:46,680 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:32:46,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i
[2023-11-19 07:32:49,736 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:32:50,214 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:32:50,215 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i
[2023-11-19 07:32:50,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/data/0542622e7/a0eab857219a4f67a685b701571f0746/FLAG28a849786
[2023-11-19 07:32:50,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/data/0542622e7/a0eab857219a4f67a685b701571f0746
[2023-11-19 07:32:50,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:32:50,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:32:50,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:32:50,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:32:50,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:32:50,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:50" (1/1) ...
[2023-11-19 07:32:50,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf963f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:50, skipping insertion in model container
[2023-11-19 07:32:50,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:50" (1/1) ...
[2023-11-19 07:32:50,383 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:32:51,447 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:32:51,463 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
[2023-11-19 07:32:51,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ead5d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:51, skipping insertion in model container
[2023-11-19 07:32:51,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:32:51,464 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2023-11-19 07:32:51,466 INFO L158 Benchmark]: Toolchain (without parser) took 1193.22ms. Allocated memory is still 165.7MB. Free memory was 131.3MB in the beginning and 101.5MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
[2023-11-19 07:32:51,467 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 89.8MB in the beginning and 89.6MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:32:51,468 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1188.01ms. Allocated memory is still 165.7MB. Free memory was 131.1MB in the beginning and 101.5MB in the end (delta: 29.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
[2023-11-19 07:32:51,470 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 89.8MB in the beginning and 89.6MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1188.01ms. Allocated memory is still 165.7MB. Free memory was 131.1MB in the beginning and 101.5MB in the end (delta: 29.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 734]: Unsupported Syntax
Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:32:53,983 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:32:54,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2023-11-19 07:32:54,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:32:54,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:32:54,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:32:54,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:32:54,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:32:54,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:32:54,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:32:54,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:32:54,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:32:54,166 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:32:54,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:32:54,169 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:32:54,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:32:54,170 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:32:54,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:32:54,170 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:32:54,171 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:32:54,171 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:32:54,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:32:54,172 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:32:54,173 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 07:32:54,173 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:32:54,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:32:54,174 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:32:54,175 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:32:54,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:32:54,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:32:54,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:32:54,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:32:54,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:32:54,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:32:54,179 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 07:32:54,179 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:32:54,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:32:54,180 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:32:54,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:32:54,181 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 07:32:54,182 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:32:54,182 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735
[2023-11-19 07:32:54,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:32:54,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:32:54,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:32:54,635 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:32:54,635 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:32:54,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i
[2023-11-19 07:32:57,666 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:32:58,159 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:32:58,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i
[2023-11-19 07:32:58,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/data/6478d8e9c/972cea1b50094bf9af5383dc67a21c76/FLAG33799b4bc
[2023-11-19 07:32:58,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/data/6478d8e9c/972cea1b50094bf9af5383dc67a21c76
[2023-11-19 07:32:58,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:32:58,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:32:58,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:32:58,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:32:58,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:32:58,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:58" (1/1) ...
[2023-11-19 07:32:58,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68387d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:58, skipping insertion in model container
[2023-11-19 07:32:58,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:58" (1/1) ...
[2023-11-19 07:32:58,332 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:32:59,359 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:32:59,374 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2023-11-19 07:32:59,388 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:32:59,528 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:32:59,534 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:32:59,720 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:32:59,767 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:32:59,776 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:32:59,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59 WrapperNode
[2023-11-19 07:32:59,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:32:59,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:32:59,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:32:59,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:32:59,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:32:59,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:32:59,983 INFO L138 Inliner]: procedures = 180, calls = 576, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2370
[2023-11-19 07:32:59,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:32:59,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:32:59,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:32:59,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:33:00,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:33:00,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:33:00,246 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:33:00,247 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:33:00,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (1/1) ...
[2023-11-19 07:33:00,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:33:00,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:33:00,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:00,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:33:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2023-11-19 07:33:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int
[2023-11-19 07:33:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int
[2023-11-19 07:33:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-19 07:33:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-19 07:33:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-19 07:33:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2023-11-19 07:33:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2023-11-19 07:33:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 07:33:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:33:00,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-19 07:33:00,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:33:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp
[2023-11-19 07:33:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 07:33:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:33:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-19 07:33:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 07:33:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:33:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:33:00,723 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:33:00,726 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:33:00,730 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2023-11-19 07:33:11,802 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:33:11,835 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:33:11,836 INFO L302 CfgBuilder]: Removed 160 assume(true) statements.
[2023-11-19 07:33:11,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:11 BoogieIcfgContainer
[2023-11-19 07:33:11,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:33:11,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:33:11,858 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:33:11,863 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:33:11,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:32:58" (1/3) ...
[2023-11-19 07:33:11,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530e8a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:11, skipping insertion in model container
[2023-11-19 07:33:11,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:59" (2/3) ...
[2023-11-19 07:33:11,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530e8a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:11, skipping insertion in model container
[2023-11-19 07:33:11,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:11" (3/3) ...
[2023-11-19 07:33:11,867 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test10-2.i
[2023-11-19 07:33:11,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:33:11,887 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1095 error locations.
[2023-11-19 07:33:11,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:33:11,987 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@59ed953e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:33:11,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1095 error locations.
[2023-11-19 07:33:11,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 2281 states, 1174 states have (on average 2.1908006814310053) internal successors, (2572), 2267 states have internal predecessors, (2572), 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)
[2023-11-19 07:33:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-11-19 07:33:12,004 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:33:12,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2023-11-19 07:33:12,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1092 more)] ===
[2023-11-19 07:33:12,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:33:12,011 INFO L85 PathProgramCache]: Analyzing trace with hash 66598, now seen corresponding path program 1 times
[2023-11-19 07:33:12,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:33:12,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180474490]
[2023-11-19 07:33:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:33:12,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:12,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:33:12,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:12,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-11-19 07:33:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:33:12,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:33:12,338 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:33:12,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2023-11-19 07:33:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:12,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:33:12,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:33:12,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180474490]
[2023-11-19 07:33:12,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180474490] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:33:12,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:33:12,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:33:12,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629444498]
[2023-11-19 07:33:12,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:33:12,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:33:12,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:33:12,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:33:12,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:33:12,548 INFO L87 Difference]: Start difference. First operand has 2281 states, 1174 states have (on average 2.1908006814310053) internal successors, (2572), 2267 states have internal predecessors, (2572), 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)
[2023-11-19 07:33:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:33:18,168 INFO L93 Difference]: Finished difference Result 2963 states and 3146 transitions.
[2023-11-19 07:33:18,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:33:18,171 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
[2023-11-19 07:33:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:33:18,206 INFO L225 Difference]: With dead ends: 2963
[2023-11-19 07:33:18,206 INFO L226 Difference]: Without dead ends: 2961
[2023-11-19 07:33:18,208 INFO L412 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
[2023-11-19 07:33:18,211 INFO L413 NwaCegarLoop]: 1411 mSDtfsCounter, 2160 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2023-11-19 07:33:18,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 1894 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2023-11-19 07:33:18,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states.
[2023-11-19 07:33:18,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2429.
[2023-11-19 07:33:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 1346 states have (on average 2.028231797919762) internal successors, (2730), 2413 states have internal predecessors, (2730), 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)
[2023-11-19 07:33:18,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 2762 transitions.
[2023-11-19 07:33:18,364 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 2762 transitions. Word has length 3
[2023-11-19 07:33:18,365 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:33:18,365 INFO L495 AbstractCegarLoop]: Abstraction has 2429 states and 2762 transitions.
[2023-11-19 07:33:18,366 INFO L496 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)
[2023-11-19 07:33:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 2762 transitions.
[2023-11-19 07:33:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-11-19 07:33:18,367 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:33:18,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2023-11-19 07:33:18,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:33:18,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:18,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1092 more)] ===
[2023-11-19 07:33:18,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:33:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash 66599, now seen corresponding path program 1 times
[2023-11-19 07:33:18,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:33:18,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404615267]
[2023-11-19 07:33:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:33:18,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:18,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:33:18,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:18,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-11-19 07:33:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:33:18,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:33:18,783 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:33:18,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2023-11-19 07:33:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:18,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:33:18,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:33:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404615267]
[2023-11-19 07:33:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404615267] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:33:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:33:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:33:18,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006247764]
[2023-11-19 07:33:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:33:18,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:33:18,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:33:18,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:33:18,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:33:18,815 INFO L87 Difference]: Start difference. First operand 2429 states and 2762 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)
[2023-11-19 07:33:27,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:33:27,595 INFO L93 Difference]: Finished difference Result 3413 states and 3838 transitions.
[2023-11-19 07:33:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:33:27,601 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
[2023-11-19 07:33:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:33:27,624 INFO L225 Difference]: With dead ends: 3413
[2023-11-19 07:33:27,625 INFO L226 Difference]: Without dead ends: 3413
[2023-11-19 07:33:27,626 INFO L412 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
[2023-11-19 07:33:27,628 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1068 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time
[2023-11-19 07:33:27,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 3279 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time]
[2023-11-19 07:33:27,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states.
[2023-11-19 07:33:27,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 2890.
[2023-11-19 07:33:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 1805 states have (on average 1.9861495844875345) internal successors, (3585), 2871 states have internal predecessors, (3585), 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)
[2023-11-19 07:33:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 3623 transitions.
[2023-11-19 07:33:27,761 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 3623 transitions. Word has length 3
[2023-11-19 07:33:27,762 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:33:27,762 INFO L495 AbstractCegarLoop]: Abstraction has 2890 states and 3623 transitions.
[2023-11-19 07:33:27,762 INFO L496 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)
[2023-11-19 07:33:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 3623 transitions.
[2023-11-19 07:33:27,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-19 07:33:27,763 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:33:27,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:33:27,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-11-19 07:33:27,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:27,967 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1092 more)] ===
[2023-11-19 07:33:27,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:33:27,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1375609072, now seen corresponding path program 1 times
[2023-11-19 07:33:27,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:33:27,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536808330]
[2023-11-19 07:33:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:33:27,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:33:27,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:33:27,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:33:27,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d8c698-b7a8-43bd-bdd4-5269ce0ac3c2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-11-19 07:33:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:33:28,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-19 07:33:28,284 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:33:28,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2023-11-19 07:33:28,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2023-11-19 07:33:28,451 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:33:28,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2023-11-19 07:33:28,481 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2023-11-19 07:33:28,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2023-11-19 07:33:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:33:28,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:33:28,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:33:28,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536808330]
[2023-11-19 07:33:28,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536808330] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:33:28,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:33:28,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:33:28,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975997033]
[2023-11-19 07:33:28,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:33:28,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:33:28,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:33:28,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:33:28,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:33:28,512 INFO L87 Difference]: Start difference. First operand 2890 states and 3623 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)