./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (memcleanup)
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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-memcleanup) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:35:37,160 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:35:37,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf
[2023-11-19 07:35:37,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:35:37,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:35:37,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:35:37,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:35:37,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:35:37,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:35:37,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:35:37,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:35:37,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:35:37,336 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:35:37,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:35:37,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:35:37,340 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:35:37,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:35:37,341 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:35:37,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:35:37,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:35:37,343 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:35:37,344 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:35:37,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:35:37,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:35:37,345 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:35:37,346 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:35:37,346 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:35:37,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:35:37,347 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:35:37,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:35:37,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:35:37,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:35:37,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:35:37,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:35:37,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:35:37,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:35:37,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:35:37,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:35:37,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:35:37,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:35:37,352 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:35:37,353 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_212cdd69-8968-4db0-833d-e2699820dcfa/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3
[2023-11-19 07:35:37,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:35:37,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:35:37,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:35:37,720 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:35:37,720 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:35:37,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i
[2023-11-19 07:35:40,936 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:35:41,376 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:35:41,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i
[2023-11-19 07:35:41,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/data/710c6a726/d460ae561bd44e93b6eabae328131a79/FLAGce638068b
[2023-11-19 07:35:41,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/data/710c6a726/d460ae561bd44e93b6eabae328131a79
[2023-11-19 07:35:41,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:35:41,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:35:41,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:35:41,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:35:41,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:35:41,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:41" (1/1) ...
[2023-11-19 07:35:41,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541308ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:41, skipping insertion in model container
[2023-11-19 07:35:41,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:41" (1/1) ...
[2023-11-19 07:35:41,531 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:35:42,163 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:35:42,175 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 07:35:42,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e01a992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:42, skipping insertion in model container
[2023-11-19 07:35:42,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:35:42,177 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2023-11-19 07:35:42,178 INFO L158 Benchmark]: Toolchain (without parser) took 741.74ms. Allocated memory is still 144.7MB. Free memory was 110.2MB in the beginning and 89.8MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
[2023-11-19 07:35:42,179 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:35:42,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 738.10ms. Allocated memory is still 144.7MB. Free memory was 110.2MB in the beginning and 89.8MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
[2023-11-19 07:35:42,181 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 115.3MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 738.10ms. Allocated memory is still 144.7MB. Free memory was 110.2MB in the beginning and 89.8MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 736]: Unsupported Syntax
Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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-memcleanup) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:35:44,863 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:35:44,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf
[2023-11-19 07:35:44,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:35:44,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:35:45,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:35:45,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:35:45,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:35:45,008 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:35:45,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:35:45,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:35:45,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:35:45,011 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:35:45,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:35:45,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:35:45,013 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:35:45,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:35:45,014 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:35:45,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:35:45,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:35:45,015 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:35:45,020 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:35:45,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:35:45,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:35:45,024 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:35:45,025 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 07:35:45,025 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:35:45,026 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:35:45,026 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:35:45,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:35:45,028 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:35:45,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:35:45,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:35:45,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:35:45,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:35:45,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:35:45,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:35:45,030 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 07:35:45,030 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:35:45,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:35:45,032 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:35:45,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:35:45,033 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 07:35:45,033 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:35:45,033 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_212cdd69-8968-4db0-833d-e2699820dcfa/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3
[2023-11-19 07:35:45,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:35:45,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:35:45,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:35:45,471 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:35:45,471 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:35:45,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i
[2023-11-19 07:35:48,750 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:35:49,125 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:35:49,132 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i
[2023-11-19 07:35:49,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/data/5d0b7cfe1/56682d74ae334cca93ee86e5785b17da/FLAG209c20bdf
[2023-11-19 07:35:49,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/data/5d0b7cfe1/56682d74ae334cca93ee86e5785b17da
[2023-11-19 07:35:49,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:35:49,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:35:49,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:35:49,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:35:49,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:35:49,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:49" (1/1) ...
[2023-11-19 07:35:49,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5df946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49, skipping insertion in model container
[2023-11-19 07:35:49,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:49" (1/1) ...
[2023-11-19 07:35:49,304 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:35:50,077 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:35:50,094 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2023-11-19 07:35:50,109 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:35:50,265 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:35:50,274 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:35:50,414 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:35:50,463 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:35:50,472 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:35:50,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50 WrapperNode
[2023-11-19 07:35:50,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:35:50,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:35:50,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:35:50,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:35:50,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,643 INFO L138 Inliner]: procedures = 180, calls = 338, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1190
[2023-11-19 07:35:50,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:35:50,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:35:50,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:35:50,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:35:50,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:35:50,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:35:50,849 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:35:50,849 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:35:50,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (1/1) ...
[2023-11-19 07:35:50,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:35:50,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:35:50,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:35:50,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:35:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2023-11-19 07:35:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2023-11-19 07:35:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2023-11-19 07:35:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-19 07:35:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-19 07:35:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-19 07:35:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2023-11-19 07:35:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2023-11-19 07:35:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 07:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-19 07:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp
[2023-11-19 07:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 07:35:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:35:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-19 07:35:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 07:35:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:35:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:35:51,282 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:35:51,287 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:35:59,801 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:35:59,815 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:35:59,815 INFO L302 CfgBuilder]: Removed 72 assume(true) statements.
[2023-11-19 07:35:59,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:59 BoogieIcfgContainer
[2023-11-19 07:35:59,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:35:59,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:35:59,826 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:35:59,829 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:35:59,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:49" (1/3) ...
[2023-11-19 07:35:59,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d12eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:59, skipping insertion in model container
[2023-11-19 07:35:59,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:50" (2/3) ...
[2023-11-19 07:35:59,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d12eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:59, skipping insertion in model container
[2023-11-19 07:35:59,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:59" (3/3) ...
[2023-11-19 07:35:59,833 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test3-2.i
[2023-11-19 07:35:59,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:35:59,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 07:35:59,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:35:59,918 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;@5771109a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:35:59,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 07:35:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 228 states have (on average 1.662280701754386) internal successors, (379), 237 states have internal predecessors, (379), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2023-11-19 07:35:59,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-11-19 07:35:59,934 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:35:59,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:35:59,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2023-11-19 07:35:59,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:35:59,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1550073224, now seen corresponding path program 1 times
[2023-11-19 07:35:59,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:35:59,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618493423]
[2023-11-19 07:35:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:35:59,958 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 07:35:59,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:35:59,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:00,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:36:00,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-19 07:36:00,205 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:00,231 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 07:36:00,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:36:00,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:00,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618493423]
[2023-11-19 07:36:00,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618493423] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:36:00,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:36:00,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:36:00,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926099007]
[2023-11-19 07:36:00,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:36:00,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:36:00,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:00,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:36:00,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:36:00,292 INFO L87 Difference]: Start difference. First operand has 244 states, 228 states have (on average 1.662280701754386) internal successors, (379), 237 states have internal predecessors, (379), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:36:00,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:00,341 INFO L93 Difference]: Finished difference Result 242 states and 318 transitions.
[2023-11-19 07:36:00,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:36:00,343 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2023-11-19 07:36:00,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:00,375 INFO L225 Difference]: With dead ends: 242
[2023-11-19 07:36:00,375 INFO L226 Difference]: Without dead ends: 240
[2023-11-19 07:36:00,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:36:00,381 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:36:00,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:36:00,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states.
[2023-11-19 07:36:00,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240.
[2023-11-19 07:36:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 233 states have internal predecessors, (298), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2023-11-19 07:36:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 316 transitions.
[2023-11-19 07:36:00,470 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 316 transitions. Word has length 11
[2023-11-19 07:36:00,471 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:00,471 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 316 transitions.
[2023-11-19 07:36:00,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:36:00,471 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 316 transitions.
[2023-11-19 07:36:00,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-11-19 07:36:00,473 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:00,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:00,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-11-19 07:36:00,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:00,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2023-11-19 07:36:00,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:00,677 INFO L85 PathProgramCache]: Analyzing trace with hash 124150477, now seen corresponding path program 1 times
[2023-11-19 07:36:00,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:00,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991814633]
[2023-11-19 07:36:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:36:00,678 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 07:36:00,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:00,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:00,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:36:00,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-19 07:36:00,893 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:01,075 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 07:36:01,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:36:01,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:01,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991814633]
[2023-11-19 07:36:01,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991814633] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:36:01,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:36:01,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:36:01,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219406158]
[2023-11-19 07:36:01,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:36:01,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:36:01,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:01,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:36:01,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:36:01,086 INFO L87 Difference]: Start difference. First operand 240 states and 316 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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)
[2023-11-19 07:36:03,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:36:08,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:36:09,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:36:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:10,096 INFO L93 Difference]: Finished difference Result 387 states and 507 transitions.
[2023-11-19 07:36:10,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:36:10,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 16
[2023-11-19 07:36:10,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:10,111 INFO L225 Difference]: With dead ends: 387
[2023-11-19 07:36:10,112 INFO L226 Difference]: Without dead ends: 387
[2023-11-19 07:36:10,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:36:10,132 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 195 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2023-11-19 07:36:10,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 879 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 109 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time]
[2023-11-19 07:36:10,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states.
[2023-11-19 07:36:10,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 354.
[2023-11-19 07:36:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 340 states have (on average 1.3147058823529412) internal successors, (447), 347 states have internal predecessors, (447), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2023-11-19 07:36:10,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 465 transitions.
[2023-11-19 07:36:10,243 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 465 transitions. Word has length 16
[2023-11-19 07:36:10,243 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:10,244 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 465 transitions.
[2023-11-19 07:36:10,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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)
[2023-11-19 07:36:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 465 transitions.
[2023-11-19 07:36:10,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-11-19 07:36:10,248 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:10,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:10,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:10,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:10,456 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2023-11-19 07:36:10,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:10,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1366296664, now seen corresponding path program 1 times
[2023-11-19 07:36:10,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:10,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158436266]
[2023-11-19 07:36:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:36:10,458 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 07:36:10,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:10,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:10,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:36:10,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-19 07:36:10,711 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:10,747 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:36:10,747 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:36:10,748 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:36:10,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39
[2023-11-19 07:36:10,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-19 07:36:10,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26
[2023-11-19 07:36:10,921 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 07:36:10,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:36:10,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:10,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158436266]
[2023-11-19 07:36:10,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158436266] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:36:10,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:36:10,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:36:10,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032131292]
[2023-11-19 07:36:10,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:36:10,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:36:10,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:10,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:36:10,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:36:10,925 INFO L87 Difference]: Start difference. First operand 354 states and 465 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 07:36:15,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:36:20,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:36:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:21,570 INFO L93 Difference]: Finished difference Result 480 states and 640 transitions.
[2023-11-19 07:36:21,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:36:21,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15
[2023-11-19 07:36:21,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:21,575 INFO L225 Difference]: With dead ends: 480
[2023-11-19 07:36:21,575 INFO L226 Difference]: Without dead ends: 480
[2023-11-19 07:36:21,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:36:21,577 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 191 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time
[2023-11-19 07:36:21,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 804 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time]
[2023-11-19 07:36:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states.
[2023-11-19 07:36:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 353.
[2023-11-19 07:36:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 339 states have (on average 1.3126843657817109) internal successors, (445), 346 states have internal predecessors, (445), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2023-11-19 07:36:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 463 transitions.
[2023-11-19 07:36:21,608 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 463 transitions. Word has length 15
[2023-11-19 07:36:21,609 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:21,609 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 463 transitions.
[2023-11-19 07:36:21,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 07:36:21,609 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 463 transitions.
[2023-11-19 07:36:21,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2023-11-19 07:36:21,614 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:21,614 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:21,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:36:21,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:21,819 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2023-11-19 07:36:21,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:21,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1047302450, now seen corresponding path program 1 times
[2023-11-19 07:36:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:21,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985012253]
[2023-11-19 07:36:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:36:21,822 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 07:36:21,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:21,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:21,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-11-19 07:36:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:36:22,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:36:22,508 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-19 07:36:22,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:36:22,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:22,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985012253]
[2023-11-19 07:36:22,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985012253] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:36:22,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:36:22,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:36:22,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340179044]
[2023-11-19 07:36:22,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:36:22,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:36:22,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:22,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:36:22,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:36:22,554 INFO L87 Difference]: Start difference. First operand 353 states and 463 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-19 07:36:22,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:22,717 INFO L93 Difference]: Finished difference Result 361 states and 455 transitions.
[2023-11-19 07:36:22,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:36:22,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87
[2023-11-19 07:36:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:22,721 INFO L225 Difference]: With dead ends: 361
[2023-11-19 07:36:22,721 INFO L226 Difference]: Without dead ends: 361
[2023-11-19 07:36:22,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:36:22,723 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 36 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:36:22,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 835 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:36:22,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states.
[2023-11-19 07:36:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 359.
[2023-11-19 07:36:22,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 345 states have (on average 1.2608695652173914) internal successors, (435), 352 states have internal predecessors, (435), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2023-11-19 07:36:22,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 453 transitions.
[2023-11-19 07:36:22,754 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 453 transitions. Word has length 87
[2023-11-19 07:36:22,754 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:22,754 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 453 transitions.
[2023-11-19 07:36:22,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-19 07:36:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 453 transitions.
[2023-11-19 07:36:22,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2023-11-19 07:36:22,757 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:22,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:22,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-11-19 07:36:22,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:22,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2023-11-19 07:36:22,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:22,976 INFO L85 PathProgramCache]: Analyzing trace with hash 647489346, now seen corresponding path program 1 times
[2023-11-19 07:36:22,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:22,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807397415]
[2023-11-19 07:36:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:36:22,979 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 07:36:22,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:22,981 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:22,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-11-19 07:36:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:36:23,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:36:23,633 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:36:23,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:36:23,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807397415]
[2023-11-19 07:36:23,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807397415] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:36:23,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:36:23,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:36:23,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363335284]
[2023-11-19 07:36:23,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:36:23,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:36:23,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:23,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:36:23,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:36:23,679 INFO L87 Difference]: Start difference. First operand 359 states and 453 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-19 07:36:23,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:23,748 INFO L93 Difference]: Finished difference Result 362 states and 457 transitions.
[2023-11-19 07:36:23,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:36:23,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 87
[2023-11-19 07:36:23,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:23,752 INFO L225 Difference]: With dead ends: 362
[2023-11-19 07:36:23,752 INFO L226 Difference]: Without dead ends: 362
[2023-11-19 07:36:23,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:36:23,753 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 2 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:36:23,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 902 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:36:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states.
[2023-11-19 07:36:23,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362.
[2023-11-19 07:36:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 347 states have (on average 1.2622478386167146) internal successors, (438), 355 states have internal predecessors, (438), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9)
[2023-11-19 07:36:23,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 457 transitions.
[2023-11-19 07:36:23,769 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 457 transitions. Word has length 87
[2023-11-19 07:36:23,769 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:23,769 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 457 transitions.
[2023-11-19 07:36:23,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-19 07:36:23,770 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 457 transitions.
[2023-11-19 07:36:23,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90
[2023-11-19 07:36:23,772 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:23,772 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:23,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-11-19 07:36:23,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:23,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2023-11-19 07:36:23,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:23,994 INFO L85 PathProgramCache]: Analyzing trace with hash -878417916, now seen corresponding path program 1 times
[2023-11-19 07:36:23,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:23,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68382043]
[2023-11-19 07:36:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:36:23,995 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 07:36:23,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:24,001 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:24,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-11-19 07:36:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:36:24,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:36:24,761 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-19 07:36:24,844 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:36:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-19 07:36:25,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:25,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68382043]
[2023-11-19 07:36:25,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68382043] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:36:25,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:36:25,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2023-11-19 07:36:25,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145117870]
[2023-11-19 07:36:25,052 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:36:25,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-19 07:36:25,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:25,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-19 07:36:25,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-11-19 07:36:25,055 INFO L87 Difference]: Start difference. First operand 362 states and 457 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-19 07:36:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:25,400 INFO L93 Difference]: Finished difference Result 373 states and 473 transitions.
[2023-11-19 07:36:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-11-19 07:36:25,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 89
[2023-11-19 07:36:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:25,405 INFO L225 Difference]: With dead ends: 373
[2023-11-19 07:36:25,405 INFO L226 Difference]: Without dead ends: 373
[2023-11-19 07:36:25,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156
[2023-11-19 07:36:25,407 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 9 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-19 07:36:25,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1203 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-19 07:36:25,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states.
[2023-11-19 07:36:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371.
[2023-11-19 07:36:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 355 states have (on average 1.2732394366197184) internal successors, (452), 363 states have internal predecessors, (452), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9)
[2023-11-19 07:36:25,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 471 transitions.
[2023-11-19 07:36:25,424 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 471 transitions. Word has length 89
[2023-11-19 07:36:25,425 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:25,425 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 471 transitions.
[2023-11-19 07:36:25,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-19 07:36:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 471 transitions.
[2023-11-19 07:36:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2023-11-19 07:36:25,429 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:25,431 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:25,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2023-11-19 07:36:25,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:25,643 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2023-11-19 07:36:25,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1107862046, now seen corresponding path program 2 times
[2023-11-19 07:36:25,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:25,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678658054]
[2023-11-19 07:36:25,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-19 07:36:25,646 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 07:36:25,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:25,647 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:25,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2023-11-19 07:36:26,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2023-11-19 07:36:26,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-19 07:36:26,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-19 07:36:26,103 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:26,121 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:36:26,121 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:36:26,122 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:36:26,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39
[2023-11-19 07:36:26,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-19 07:36:26,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26
[2023-11-19 07:36:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked.
[2023-11-19 07:36:26,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:36:26,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:26,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678658054]
[2023-11-19 07:36:26,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678658054] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:36:26,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:36:26,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:36:26,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114700271]
[2023-11-19 07:36:26,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:36:26,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:36:26,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:26,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:36:26,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:36:26,236 INFO L87 Difference]: Start difference. First operand 371 states and 471 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-19 07:36:30,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:36:34,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:36:35,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-11-19 07:36:36,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:36,189 INFO L93 Difference]: Finished difference Result 459 states and 589 transitions.
[2023-11-19 07:36:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:36:36,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93
[2023-11-19 07:36:36,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:36,195 INFO L225 Difference]: With dead ends: 459
[2023-11-19 07:36:36,195 INFO L226 Difference]: Without dead ends: 459
[2023-11-19 07:36:36,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:36:36,196 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 136 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time
[2023-11-19 07:36:36,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 790 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time]
[2023-11-19 07:36:36,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states.
[2023-11-19 07:36:36,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 373.
[2023-11-19 07:36:36,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 357 states have (on average 1.2717086834733893) internal successors, (454), 365 states have internal predecessors, (454), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9)
[2023-11-19 07:36:36,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 473 transitions.
[2023-11-19 07:36:36,213 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 473 transitions. Word has length 93
[2023-11-19 07:36:36,213 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:36,214 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 473 transitions.
[2023-11-19 07:36:36,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-19 07:36:36,214 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 473 transitions.
[2023-11-19 07:36:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2023-11-19 07:36:36,216 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:36,216 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:36,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2023-11-19 07:36:36,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:36,421 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2023-11-19 07:36:36,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:36,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1425217989, now seen corresponding path program 1 times
[2023-11-19 07:36:36,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:36,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934145291]
[2023-11-19 07:36:36,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:36:36,423 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 07:36:36,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:36,424 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/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 07:36:36,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2023-11-19 07:36:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:36:37,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-19 07:36:37,132 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:36:37,305 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:36:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-19 07:36:37,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:37,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934145291]
[2023-11-19 07:36:37,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934145291] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:36:37,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:36:37,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2023-11-19 07:36:37,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563566193]
[2023-11-19 07:36:37,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:36:37,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-11-19 07:36:37,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:37,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-11-19 07:36:37,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182
[2023-11-19 07:36:37,744 INFO L87 Difference]: Start difference. First operand 373 states and 473 transitions. Second operand has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-19 07:36:38,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:38,910 INFO L93 Difference]: Finished difference Result 394 states and 501 transitions.
[2023-11-19 07:36:38,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2023-11-19 07:36:38,912 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 125
[2023-11-19 07:36:38,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:38,916 INFO L225 Difference]: With dead ends: 394
[2023-11-19 07:36:38,916 INFO L226 Difference]: Without dead ends: 390
[2023-11-19 07:36:38,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756
[2023-11-19 07:36:38,918 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 18 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-11-19 07:36:38,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2122 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-11-19 07:36:38,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states.
[2023-11-19 07:36:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 382.
[2023-11-19 07:36:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 366 states have (on average 1.273224043715847) internal successors, (466), 374 states have internal predecessors, (466), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9)
[2023-11-19 07:36:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 485 transitions.
[2023-11-19 07:36:38,934 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 485 transitions. Word has length 125
[2023-11-19 07:36:38,934 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:38,935 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 485 transitions.
[2023-11-19 07:36:38,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-19 07:36:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 485 transitions.
[2023-11-19 07:36:38,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-11-19 07:36:38,937 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:38,938 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:38,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212cdd69-8968-4db0-833d-e2699820dcfa/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0