./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:15:09,731 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:15:09,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:15:09,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:15:09,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:15:09,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:15:09,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:15:09,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:15:09,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:15:09,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:15:09,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:15:09,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:15:09,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:15:09,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:15:09,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:15:09,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:15:09,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:15:09,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:15:09,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:15:09,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:15:09,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:15:09,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:15:09,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:15:09,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:15:09,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:15:09,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:15:09,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:15:09,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:15:09,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:15:09,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:15:09,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:15:09,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:15:09,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:15:09,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:15:09,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:15:09,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:15:09,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:15:09,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:15:09,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:15:09,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:15:09,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:15:09,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2021-11-13 18:15:10,008 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:15:10,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:15:10,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:15:10,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:15:10,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:15:10,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:15:10,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:15:10,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:15:10,013 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:15:10,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:15:10,015 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:15:10,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-11-13 18:15:10,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:15:10,017 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:15:10,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:15:10,017 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-11-13 18:15:10,017 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-11-13 18:15:10,018 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-11-13 18:15:10,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:15:10,018 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-11-13 18:15:10,019 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:15:10,019 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:15:10,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:15:10,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:15:10,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:15:10,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:15:10,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:15:10,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:15:10,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:15:10,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 18:15:10,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:15:10,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f
[2021-11-13 18:15:10,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:15:10,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:15:10,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:15:10,408 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:15:10,409 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:15:10,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i
[2021-11-13 18:15:10,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data/7e1bbbc4d/507d1ad0c8924a2cab5e9722d0d1644d/FLAGcd7a7f93c
[2021-11-13 18:15:11,246 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:15:11,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i
[2021-11-13 18:15:11,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data/7e1bbbc4d/507d1ad0c8924a2cab5e9722d0d1644d/FLAGcd7a7f93c
[2021-11-13 18:15:11,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data/7e1bbbc4d/507d1ad0c8924a2cab5e9722d0d1644d
[2021-11-13 18:15:11,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:15:11,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-11-13 18:15:11,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:15:11,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:15:11,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:15:11,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:15:11" (1/1) ...
[2021-11-13 18:15:11,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34153bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:11, skipping insertion in model container
[2021-11-13 18:15:11,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:15:11" (1/1) ...
[2021-11-13 18:15:11,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:15:11,542 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:15:12,171 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034]
[2021-11-13 18:15:12,365 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603]
[2021-11-13 18:15:12,393 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:15:12,406 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
[2021-11-13 18:15:12,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e8079d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:12, skipping insertion in model container
[2021-11-13 18:15:12,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:15:12,407 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor
[2021-11-13 18:15:12,410 INFO L158 Benchmark]: Toolchain (without parser) took 986.89ms. Allocated memory is still 92.3MB. Free memory was 62.4MB in the beginning and 56.8MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 18:15:12,410 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 50.5MB in the beginning and 50.5MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:15:12,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 981.24ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 56.8MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 18:15:12,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 50.5MB in the beginning and 50.5MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 981.24ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 56.8MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. 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 where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:15:15,207 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:15:15,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:15:15,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:15:15,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:15:15,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:15:15,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:15:15,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:15:15,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:15:15,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:15:15,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:15:15,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:15:15,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:15:15,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:15:15,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:15:15,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:15:15,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:15:15,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:15:15,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:15:15,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:15:15,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:15:15,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:15:15,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:15:15,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:15:15,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:15:15,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:15:15,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:15:15,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:15:15,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:15:15,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:15:15,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:15:15,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:15:15,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:15:15,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:15:15,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:15:15,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:15:15,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:15:15,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:15:15,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:15:15,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:15:15,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:15:15,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2021-11-13 18:15:15,438 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:15:15,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:15:15,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:15:15,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:15:15,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:15:15,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:15:15,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:15:15,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:15:15,445 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:15:15,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:15:15,447 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:15:15,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-11-13 18:15:15,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:15:15,448 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:15:15,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:15:15,449 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-11-13 18:15:15,450 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-11-13 18:15:15,450 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-11-13 18:15:15,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:15:15,451 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-11-13 18:15:15,451 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 18:15:15,451 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 18:15:15,452 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:15:15,452 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:15:15,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:15:15,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:15:15,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:15:15,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:15:15,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:15:15,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:15:15,455 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 18:15:15,455 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 18:15:15,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:15:15,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 18:15:15,456 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f
[2021-11-13 18:15:16,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:15:16,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:15:16,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:15:16,081 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:15:16,082 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:15:16,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i
[2021-11-13 18:15:16,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data/399eff0da/df5f445dac994647b90fe7de31b736d3/FLAGbf17c81eb
[2021-11-13 18:15:17,084 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:15:17,085 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i
[2021-11-13 18:15:17,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data/399eff0da/df5f445dac994647b90fe7de31b736d3/FLAGbf17c81eb
[2021-11-13 18:15:17,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/data/399eff0da/df5f445dac994647b90fe7de31b736d3
[2021-11-13 18:15:17,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:15:17,198 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-11-13 18:15:17,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:15:17,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:15:17,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:15:17,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:15:17" (1/1) ...
[2021-11-13 18:15:17,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11af2325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:17, skipping insertion in model container
[2021-11-13 18:15:17,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:15:17" (1/1) ...
[2021-11-13 18:15:17,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:15:17,316 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:15:17,917 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034]
[2021-11-13 18:15:18,155 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603]
[2021-11-13 18:15:18,211 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:15:18,232 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2021-11-13 18:15:18,249 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:15:18,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034]
[2021-11-13 18:15:18,354 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603]
[2021-11-13 18:15:18,382 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:15:18,389 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:15:18,447 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034]
[2021-11-13 18:15:18,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603]
[2021-11-13 18:15:18,563 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:15:18,631 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:15:18,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18 WrapperNode
[2021-11-13 18:15:18,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:15:18,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:15:18,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:15:18,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:15:18,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (1/1) ...
[2021-11-13 18:15:18,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (1/1) ...
[2021-11-13 18:15:18,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (1/1) ...
[2021-11-13 18:15:18,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (1/1) ...
[2021-11-13 18:15:18,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (1/1) ...
[2021-11-13 18:15:18,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (1/1) ...
[2021-11-13 18:15:18,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (1/1) ...
[2021-11-13 18:15:18,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:15:18,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:15:18,855 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:15:18,855 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:15:18,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (1/1) ...
[2021-11-13 18:15:18,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:15:18,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:15:18,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:18,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:15:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-11-13 18:15:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:15:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode
[2021-11-13 18:15:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32
[2021-11-13 18:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64
[2021-11-13 18:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2021-11-13 18:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2021-11-13 18:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2021-11-13 18:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-11-13 18:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-11-13 18:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int
[2021-11-13 18:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-11-13 18:15:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2021-11-13 18:15:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy
[2021-11-13 18:15:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure memmove
[2021-11-13 18:15:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy
[2021-11-13 18:15:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure memset
[2021-11-13 18:15:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp
[2021-11-13 18:15:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure memchr
[2021-11-13 18:15:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy
[2021-11-13 18:15:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy
[2021-11-13 18:15:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure strcat
[2021-11-13 18:15:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure strncat
[2021-11-13 18:15:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp
[2021-11-13 18:15:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp
[2021-11-13 18:15:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll
[2021-11-13 18:15:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm
[2021-11-13 18:15:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l
[2021-11-13 18:15:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l
[2021-11-13 18:15:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure strdup
[2021-11-13 18:15:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure strndup
[2021-11-13 18:15:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure strchr
[2021-11-13 18:15:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr
[2021-11-13 18:15:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn
[2021-11-13 18:15:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure strspn
[2021-11-13 18:15:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk
[2021-11-13 18:15:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure strstr
[2021-11-13 18:15:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure strtok
[2021-11-13 18:15:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r
[2021-11-13 18:15:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r
[2021-11-13 18:15:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure strlen
[2021-11-13 18:15:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen
[2021-11-13 18:15:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure strerror
[2021-11-13 18:15:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r
[2021-11-13 18:15:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l
[2021-11-13 18:15:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp
[2021-11-13 18:15:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy
[2021-11-13 18:15:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure bzero
[2021-11-13 18:15:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure index
[2021-11-13 18:15:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure rindex
[2021-11-13 18:15:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ffs
[2021-11-13 18:15:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl
[2021-11-13 18:15:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll
[2021-11-13 18:15:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp
[2021-11-13 18:15:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp
[2021-11-13 18:15:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l
[2021-11-13 18:15:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l
[2021-11-13 18:15:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero
[2021-11-13 18:15:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure strsep
[2021-11-13 18:15:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal
[2021-11-13 18:15:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy
[2021-11-13 18:15:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy
[2021-11-13 18:15:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy
[2021-11-13 18:15:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy
[2021-11-13 18:15:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2021-11-13 18:15:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2021-11-13 18:15:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2021-11-13 18:15:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2021-11-13 18:15:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2021-11-13 18:15:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2021-11-13 18:15:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2021-11-13 18:15:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2021-11-13 18:15:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2021-11-13 18:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2021-11-13 18:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2021-11-13 18:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2021-11-13 18:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2021-11-13 18:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2021-11-13 18:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2021-11-13 18:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2021-11-13 18:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32
[2021-11-13 18:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64
[2021-11-13 18:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity
[2021-11-13 18:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity
[2021-11-13 18:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity
[2021-11-13 18:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2021-11-13 18:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2021-11-13 18:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2021-11-13 18:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2021-11-13 18:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2021-11-13 18:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2021-11-13 18:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2021-11-13 18:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2021-11-13 18:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2021-11-13 18:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2021-11-13 18:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2021-11-13 18:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2021-11-13 18:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2021-11-13 18:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2021-11-13 18:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2021-11-13 18:15:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2021-11-13 18:15:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2021-11-13 18:15:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2021-11-13 18:15:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2021-11-13 18:15:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2021-11-13 18:15:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2021-11-13 18:15:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2021-11-13 18:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2021-11-13 18:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2021-11-13 18:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2021-11-13 18:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2021-11-13 18:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2021-11-13 18:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2021-11-13 18:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2021-11-13 18:15:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2021-11-13 18:15:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2021-11-13 18:15:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2021-11-13 18:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2021-11-13 18:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2021-11-13 18:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2021-11-13 18:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2021-11-13 18:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2021-11-13 18:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2021-11-13 18:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2021-11-13 18:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2021-11-13 18:15:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2021-11-13 18:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2021-11-13 18:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-11-13 18:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2021-11-13 18:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2021-11-13 18:15:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2021-11-13 18:15:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2021-11-13 18:15:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2021-11-13 18:15:19,034 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2021-11-13 18:15:19,034 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2021-11-13 18:15:19,034 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2021-11-13 18:15:19,034 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2021-11-13 18:15:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2021-11-13 18:15:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2021-11-13 18:15:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2021-11-13 18:15:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2021-11-13 18:15:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2021-11-13 18:15:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2021-11-13 18:15:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2021-11-13 18:15:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2021-11-13 18:15:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2021-11-13 18:15:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2021-11-13 18:15:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2021-11-13 18:15:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2021-11-13 18:15:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2021-11-13 18:15:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2021-11-13 18:15:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2021-11-13 18:15:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2021-11-13 18:15:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2021-11-13 18:15:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2021-11-13 18:15:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2021-11-13 18:15:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2021-11-13 18:15:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2021-11-13 18:15:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2021-11-13 18:15:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2021-11-13 18:15:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2021-11-13 18:15:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2021-11-13 18:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2021-11-13 18:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2021-11-13 18:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2021-11-13 18:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2021-11-13 18:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2021-11-13 18:15:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2021-11-13 18:15:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2021-11-13 18:15:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2021-11-13 18:15:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2021-11-13 18:15:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-11-13 18:15:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2021-11-13 18:15:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2021-11-13 18:15:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-11-13 18:15:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:15:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-11-13 18:15:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int
[2021-11-13 18:15:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-11-13 18:15:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-11-13 18:15:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-13 18:15:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-11-13 18:15:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2021-11-13 18:15:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-11-13 18:15:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-11-13 18:15:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2021-11-13 18:15:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 18:15:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-11-13 18:15:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 18:15:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:15:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode
[2021-11-13 18:15:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2021-11-13 18:15:19,746 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-13 18:15:26,371 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:15:26,371 INFO L299 CfgBuilder]: Removed 72 assume(true) statements.
[2021-11-13 18:15:26,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:15:26 BoogieIcfgContainer
[2021-11-13 18:15:26,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:15:26,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:15:26,383 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:15:26,387 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:15:26,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:15:17" (1/3) ...
[2021-11-13 18:15:26,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfd1746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:15:26, skipping insertion in model container
[2021-11-13 18:15:26,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:18" (2/3) ...
[2021-11-13 18:15:26,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfd1746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:15:26, skipping insertion in model container
[2021-11-13 18:15:26,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:15:26" (3/3) ...
[2021-11-13 18:15:26,395 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-2.i
[2021-11-13 18:15:26,403 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:15:26,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 639 error locations.
[2021-11-13 18:15:26,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:15:26,502 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 18:15:26,502 INFO L340 AbstractCegarLoop]: Starting to check reachability of 639 error locations.
[2021-11-13 18:15:26,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 1279 states, 626 states have (on average 2.253993610223642) internal successors, (1411), 1267 states have internal predecessors, (1411), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11)
[2021-11-13 18:15:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-11-13 18:15:26,582 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:26,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:26,583 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash 806083998, now seen corresponding path program 1 times
[2021-11-13 18:15:26,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:26,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935415365]
[2021-11-13 18:15:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:26,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:26,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:26,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:26,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 18:15:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:26,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:15:26,958 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:27,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:15:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:27,109 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:27,162 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:27,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935415365]
[2021-11-13 18:15:27,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935415365] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:27,163 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:27,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 18:15:27,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344029868]
[2021-11-13 18:15:27,167 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:27,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:15:27,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:27,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:15:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:15:27,210 INFO L87 Difference]: Start difference. First operand has 1279 states, 626 states have (on average 2.253993610223642) internal successors, (1411), 1267 states have internal predecessors, (1411), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:30,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:30,334 INFO L93 Difference]: Finished difference Result 1451 states and 1536 transitions.
[2021-11-13 18:15:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:15:30,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7
[2021-11-13 18:15:30,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:30,389 INFO L225 Difference]: With dead ends: 1451
[2021-11-13 18:15:30,390 INFO L226 Difference]: Without dead ends: 1448
[2021-11-13 18:15:30,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:15:30,403 INFO L933 BasicCegarLoop]: 777 mSDtfsCounter, 1169 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2401.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.56ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2968.47ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:30,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 964 Invalid, 756 Unknown, 0 Unchecked, 29.56ms Time], IncrementalHoareTripleChecker [16 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 2968.47ms Time]
[2021-11-13 18:15:30,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states.
[2021-11-13 18:15:30,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1263.
[2021-11-13 18:15:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 626 states have (on average 2.1070287539936103) internal successors, (1319), 1252 states have internal predecessors, (1319), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1340 transitions.
[2021-11-13 18:15:30,586 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1340 transitions. Word has length 7
[2021-11-13 18:15:30,587 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:30,587 INFO L470 AbstractCegarLoop]: Abstraction has 1263 states and 1340 transitions.
[2021-11-13 18:15:30,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:30,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1340 transitions.
[2021-11-13 18:15:30,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-11-13 18:15:30,589 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:30,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:30,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:30,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:30,802 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:30,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash 806083999, now seen corresponding path program 1 times
[2021-11-13 18:15:30,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:30,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787764434]
[2021-11-13 18:15:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:30,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:30,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:30,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:30,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 18:15:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:31,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:15:31,062 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:31,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:15:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:31,118 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:31,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:31,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787764434]
[2021-11-13 18:15:31,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787764434] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:31,206 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:31,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3
[2021-11-13 18:15:31,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197687659]
[2021-11-13 18:15:31,206 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:31,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:15:31,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:31,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:15:31,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:31,209 INFO L87 Difference]: Start difference. First operand 1263 states and 1340 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:38,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:38,760 INFO L93 Difference]: Finished difference Result 1936 states and 2058 transitions.
[2021-11-13 18:15:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:15:38,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7
[2021-11-13 18:15:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:38,776 INFO L225 Difference]: With dead ends: 1936
[2021-11-13 18:15:38,776 INFO L226 Difference]: Without dead ends: 1936
[2021-11-13 18:15:38,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:38,779 INFO L933 BasicCegarLoop]: 909 mSDtfsCounter, 1563 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6487.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.86ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7420.25ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:38,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1565 Valid, 1865 Invalid, 1282 Unknown, 0 Unchecked, 26.86ms Time], IncrementalHoareTripleChecker [18 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 7420.25ms Time]
[2021-11-13 18:15:38,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states.
[2021-11-13 18:15:38,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1298.
[2021-11-13 18:15:38,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 670 states have (on average 2.0865671641791046) internal successors, (1398), 1287 states have internal predecessors, (1398), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1419 transitions.
[2021-11-13 18:15:38,842 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1419 transitions. Word has length 7
[2021-11-13 18:15:38,842 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:38,842 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 1419 transitions.
[2021-11-13 18:15:38,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:38,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1419 transitions.
[2021-11-13 18:15:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:15:38,844 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:38,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:38,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:39,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:39,067 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1330049549, now seen corresponding path program 1 times
[2021-11-13 18:15:39,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:39,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942572148]
[2021-11-13 18:15:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:39,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:39,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:39,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:39,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 18:15:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:39,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:15:39,301 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:39,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:15:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:39,355 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:39,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:39,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942572148]
[2021-11-13 18:15:39,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942572148] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:39,397 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:39,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 18:15:39,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170443943]
[2021-11-13 18:15:39,398 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:39,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:15:39,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:39,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:15:39,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:15:39,404 INFO L87 Difference]: Start difference. First operand 1298 states and 1419 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:42,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:42,567 INFO L93 Difference]: Finished difference Result 1626 states and 1772 transitions.
[2021-11-13 18:15:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:15:42,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2021-11-13 18:15:42,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:42,584 INFO L225 Difference]: With dead ends: 1626
[2021-11-13 18:15:42,584 INFO L226 Difference]: Without dead ends: 1626
[2021-11-13 18:15:42,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:15:42,587 INFO L933 BasicCegarLoop]: 1172 mSDtfsCounter, 980 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2559.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.66ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3075.57ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:42,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 1546 Invalid, 879 Unknown, 0 Unchecked, 17.66ms Time], IncrementalHoareTripleChecker [54 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 3075.57ms Time]
[2021-11-13 18:15:42,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states.
[2021-11-13 18:15:42,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1249.
[2021-11-13 18:15:42,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 670 states have (on average 2.008955223880597) internal successors, (1346), 1238 states have internal predecessors, (1346), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:42,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1367 transitions.
[2021-11-13 18:15:42,634 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1367 transitions. Word has length 12
[2021-11-13 18:15:42,634 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:42,635 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 1367 transitions.
[2021-11-13 18:15:42,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:42,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1367 transitions.
[2021-11-13 18:15:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:15:42,636 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:42,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:42,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0
[2021-11-13 18:15:42,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:42,850 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr7REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:42,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:42,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1330049550, now seen corresponding path program 1 times
[2021-11-13 18:15:42,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:42,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2676623]
[2021-11-13 18:15:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:42,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:42,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:42,858 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:42,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-13 18:15:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:43,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:15:43,056 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:43,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:15:43,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:43,137 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:43,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:43,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2676623]
[2021-11-13 18:15:43,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2676623] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:43,259 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:43,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3
[2021-11-13 18:15:43,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613359888]
[2021-11-13 18:15:43,260 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:43,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:15:43,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:15:43,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:43,262 INFO L87 Difference]: Start difference. First operand 1249 states and 1367 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:49,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:49,303 INFO L93 Difference]: Finished difference Result 1669 states and 1779 transitions.
[2021-11-13 18:15:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:15:49,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2021-11-13 18:15:49,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:49,315 INFO L225 Difference]: With dead ends: 1669
[2021-11-13 18:15:49,315 INFO L226 Difference]: Without dead ends: 1669
[2021-11-13 18:15:49,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:49,317 INFO L933 BasicCegarLoop]: 1345 mSDtfsCounter, 1395 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5235.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.41ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5971.47ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:49,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1397 Valid, 1891 Invalid, 894 Unknown, 0 Unchecked, 19.41ms Time], IncrementalHoareTripleChecker [15 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 5971.47ms Time]
[2021-11-13 18:15:49,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states.
[2021-11-13 18:15:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1239.
[2021-11-13 18:15:49,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 670 states have (on average 1.98955223880597) internal successors, (1333), 1228 states have internal predecessors, (1333), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1354 transitions.
[2021-11-13 18:15:49,362 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1354 transitions. Word has length 12
[2021-11-13 18:15:49,362 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:49,363 INFO L470 AbstractCegarLoop]: Abstraction has 1239 states and 1354 transitions.
[2021-11-13 18:15:49,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1354 transitions.
[2021-11-13 18:15:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-11-13 18:15:49,364 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:49,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:49,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:49,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:49,579 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr526REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:49,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:49,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1636070505, now seen corresponding path program 1 times
[2021-11-13 18:15:49,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:49,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304277380]
[2021-11-13 18:15:49,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:49,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:49,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:49,582 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:49,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-13 18:15:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:49,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:15:49,825 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:49,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:49,948 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:50,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:50,052 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:50,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304277380]
[2021-11-13 18:15:50,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304277380] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:50,053 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:50,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:15:50,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355276592]
[2021-11-13 18:15:50,054 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:50,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:15:50,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:50,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:15:50,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:50,056 INFO L87 Difference]: Start difference. First operand 1239 states and 1354 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:51,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:51,376 INFO L93 Difference]: Finished difference Result 1881 states and 2038 transitions.
[2021-11-13 18:15:51,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:15:51,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2021-11-13 18:15:51,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:51,387 INFO L225 Difference]: With dead ends: 1881
[2021-11-13 18:15:51,387 INFO L226 Difference]: Without dead ends: 1881
[2021-11-13 18:15:51,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:15:51,389 INFO L933 BasicCegarLoop]: 1401 mSDtfsCounter, 753 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1072.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 3766 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.94ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1254.40ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:51,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 3766 Invalid, 373 Unknown, 0 Unchecked, 12.94ms Time], IncrementalHoareTripleChecker [16 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1254.40ms Time]
[2021-11-13 18:15:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states.
[2021-11-13 18:15:51,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1479.
[2021-11-13 18:15:51,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 910 states have (on average 1.9637362637362636) internal successors, (1787), 1468 states have internal predecessors, (1787), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:51,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1808 transitions.
[2021-11-13 18:15:51,442 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1808 transitions. Word has length 15
[2021-11-13 18:15:51,442 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:51,442 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 1808 transitions.
[2021-11-13 18:15:51,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:51,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1808 transitions.
[2021-11-13 18:15:51,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-11-13 18:15:51,444 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:51,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:51,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:51,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:51,658 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr340REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:51,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:51,659 INFO L85 PathProgramCache]: Analyzing trace with hash -271696847, now seen corresponding path program 1 times
[2021-11-13 18:15:51,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:51,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303302382]
[2021-11-13 18:15:51,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:51,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:51,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:51,662 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:51,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-11-13 18:15:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:51,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:15:51,913 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:51,961 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:52,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:52,014 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:52,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303302382]
[2021-11-13 18:15:52,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303302382] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:52,015 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:52,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:15:52,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165082588]
[2021-11-13 18:15:52,016 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:52,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:15:52,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:15:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:52,017 INFO L87 Difference]: Start difference. First operand 1479 states and 1808 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:52,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:52,083 INFO L93 Difference]: Finished difference Result 1649 states and 1966 transitions.
[2021-11-13 18:15:52,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:15:52,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2021-11-13 18:15:52,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:52,095 INFO L225 Difference]: With dead ends: 1649
[2021-11-13 18:15:52,095 INFO L226 Difference]: Without dead ends: 1649
[2021-11-13 18:15:52,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:52,098 INFO L933 BasicCegarLoop]: 1226 mSDtfsCounter, 590 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.10ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:52,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 2948 Invalid, 12 Unknown, 0 Unchecked, 4.25ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 19.10ms Time]
[2021-11-13 18:15:52,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states.
[2021-11-13 18:15:52,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1419.
[2021-11-13 18:15:52,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 874 states have (on average 1.9462242562929062) internal successors, (1701), 1408 states have internal predecessors, (1701), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1722 transitions.
[2021-11-13 18:15:52,145 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1722 transitions. Word has length 17
[2021-11-13 18:15:52,146 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:52,146 INFO L470 AbstractCegarLoop]: Abstraction has 1419 states and 1722 transitions.
[2021-11-13 18:15:52,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:52,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1722 transitions.
[2021-11-13 18:15:52,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-11-13 18:15:52,149 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:52,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:52,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:52,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:52,368 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr364REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:52,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash 892362763, now seen corresponding path program 1 times
[2021-11-13 18:15:52,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:52,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030438071]
[2021-11-13 18:15:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:52,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:52,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:52,371 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:52,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2021-11-13 18:15:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:52,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:15:52,594 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:52,648 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:52,703 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:52,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030438071]
[2021-11-13 18:15:52,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030438071] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:52,704 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:52,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2021-11-13 18:15:52,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964810514]
[2021-11-13 18:15:52,705 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:52,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:15:52,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:52,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:15:52,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:15:52,706 INFO L87 Difference]: Start difference. First operand 1419 states and 1722 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:52,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:52,804 INFO L93 Difference]: Finished difference Result 1621 states and 1910 transitions.
[2021-11-13 18:15:52,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:15:52,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19
[2021-11-13 18:15:52,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:52,813 INFO L225 Difference]: With dead ends: 1621
[2021-11-13 18:15:52,813 INFO L226 Difference]: Without dead ends: 1621
[2021-11-13 18:15:52,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:15:52,814 INFO L933 BasicCegarLoop]: 1181 mSDtfsCounter, 1112 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.87ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.67ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:52,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 3217 Invalid, 75 Unknown, 0 Unchecked, 6.87ms Time], IncrementalHoareTripleChecker [43 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 62.67ms Time]
[2021-11-13 18:15:52,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states.
[2021-11-13 18:15:52,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1389.
[2021-11-13 18:15:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 858 states have (on average 1.9149184149184149) internal successors, (1643), 1378 states have internal predecessors, (1643), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1664 transitions.
[2021-11-13 18:15:52,849 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1664 transitions. Word has length 19
[2021-11-13 18:15:52,849 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:52,849 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 1664 transitions.
[2021-11-13 18:15:52,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1664 transitions.
[2021-11-13 18:15:52,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-11-13 18:15:52,851 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:52,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:52,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:53,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:53,066 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr637ENSURES_VIOLATIONMEMORY_LEAK === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:53,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:53,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1468583665, now seen corresponding path program 1 times
[2021-11-13 18:15:53,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:53,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552403934]
[2021-11-13 18:15:53,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:53,068 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:53,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:53,068 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:53,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2021-11-13 18:15:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:53,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:15:53,302 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:53,321 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:15:53,321 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:15:53,322 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:15:53,382 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size
[2021-11-13 18:15:53,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 30 treesize of output 36
[2021-11-13 18:15:53,477 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size
[2021-11-13 18:15:53,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 67 treesize of output 23
[2021-11-13 18:15:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:53,519 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:53,621 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:53,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552403934]
[2021-11-13 18:15:53,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552403934] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:53,623 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:53,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-13 18:15:53,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006090472]
[2021-11-13 18:15:53,624 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:53,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:15:53,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:53,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:15:53,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:15:53,625 INFO L87 Difference]: Start difference. First operand 1389 states and 1664 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:56,099 INFO L93 Difference]: Finished difference Result 1832 states and 2168 transitions.
[2021-11-13 18:15:56,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:15:56,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20
[2021-11-13 18:15:56,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:56,108 INFO L225 Difference]: With dead ends: 1832
[2021-11-13 18:15:56,109 INFO L226 Difference]: Without dead ends: 1832
[2021-11-13 18:15:56,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:15:56,110 INFO L933 BasicCegarLoop]: 1148 mSDtfsCounter, 431 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2130.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 4363 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.47ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2410.32ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:56,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 4363 Invalid, 389 Unknown, 0 Unchecked, 11.47ms Time], IncrementalHoareTripleChecker [2 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 2410.32ms Time]
[2021-11-13 18:15:56,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states.
[2021-11-13 18:15:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1388.
[2021-11-13 18:15:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 857 states have (on average 1.9148191365227538) internal successors, (1641), 1377 states have internal predecessors, (1641), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:56,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1662 transitions.
[2021-11-13 18:15:56,148 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1662 transitions. Word has length 20
[2021-11-13 18:15:56,149 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:56,149 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 1662 transitions.
[2021-11-13 18:15:56,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1662 transitions.
[2021-11-13 18:15:56,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2021-11-13 18:15:56,150 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:56,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:56,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:56,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:56,367 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr14REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:56,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:56,367 INFO L85 PathProgramCache]: Analyzing trace with hash 833916409, now seen corresponding path program 1 times
[2021-11-13 18:15:56,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:56,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884111732]
[2021-11-13 18:15:56,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:56,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:56,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:56,369 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:56,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2021-11-13 18:15:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:56,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:15:56,620 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:56,670 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:56,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:56,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884111732]
[2021-11-13 18:15:56,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884111732] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:56,731 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:56,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:15:56,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317427044]
[2021-11-13 18:15:56,731 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:56,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:15:56,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:15:56,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:56,733 INFO L87 Difference]: Start difference. First operand 1388 states and 1662 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:56,774 INFO L93 Difference]: Finished difference Result 1328 states and 1576 transitions.
[2021-11-13 18:15:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:15:56,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22
[2021-11-13 18:15:56,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:56,782 INFO L225 Difference]: With dead ends: 1328
[2021-11-13 18:15:56,783 INFO L226 Difference]: Without dead ends: 1328
[2021-11-13 18:15:56,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:56,784 INFO L933 BasicCegarLoop]: 1146 mSDtfsCounter, 1096 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.33ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:56,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1100 Valid, 1258 Invalid, 12 Unknown, 0 Unchecked, 2.73ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 20.33ms Time]
[2021-11-13 18:15:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states.
[2021-11-13 18:15:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1328.
[2021-11-13 18:15:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 821 states have (on average 1.8940316686967114) internal successors, (1555), 1317 states have internal predecessors, (1555), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:56,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1576 transitions.
[2021-11-13 18:15:56,816 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1576 transitions. Word has length 22
[2021-11-13 18:15:56,817 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:56,817 INFO L470 AbstractCegarLoop]: Abstraction has 1328 states and 1576 transitions.
[2021-11-13 18:15:56,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:56,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1576 transitions.
[2021-11-13 18:15:56,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-11-13 18:15:56,818 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:56,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:56,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:57,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:57,033 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr38REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:57,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1765216397, now seen corresponding path program 1 times
[2021-11-13 18:15:57,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:57,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206212913]
[2021-11-13 18:15:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:57,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:57,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:57,035 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:57,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2021-11-13 18:15:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:57,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:15:57,260 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:57,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:57,354 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:57,424 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:57,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206212913]
[2021-11-13 18:15:57,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206212913] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:57,425 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:57,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2021-11-13 18:15:57,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322175293]
[2021-11-13 18:15:57,426 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:57,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:15:57,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:57,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:15:57,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:15:57,427 INFO L87 Difference]: Start difference. First operand 1328 states and 1576 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:57,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:15:57,531 INFO L93 Difference]: Finished difference Result 1300 states and 1520 transitions.
[2021-11-13 18:15:57,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:15:57,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24
[2021-11-13 18:15:57,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:15:57,543 INFO L225 Difference]: With dead ends: 1300
[2021-11-13 18:15:57,543 INFO L226 Difference]: Without dead ends: 1300
[2021-11-13 18:15:57,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:15:57,545 INFO L933 BasicCegarLoop]: 1101 mSDtfsCounter, 1067 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.33ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.86ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:15:57,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 2308 Invalid, 64 Unknown, 0 Unchecked, 6.33ms Time], IncrementalHoareTripleChecker [32 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 65.86ms Time]
[2021-11-13 18:15:57,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states.
[2021-11-13 18:15:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1298.
[2021-11-13 18:15:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 805 states have (on average 1.8596273291925465) internal successors, (1497), 1287 states have internal predecessors, (1497), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:15:57,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1518 transitions.
[2021-11-13 18:15:57,587 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1518 transitions. Word has length 24
[2021-11-13 18:15:57,588 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:15:57,588 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 1518 transitions.
[2021-11-13 18:15:57,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:15:57,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1518 transitions.
[2021-11-13 18:15:57,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2021-11-13 18:15:57,598 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:15:57,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:15:57,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2021-11-13 18:15:57,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:15:57,814 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr52REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:15:57,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:15:57,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1075877825, now seen corresponding path program 1 times
[2021-11-13 18:15:57,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:15:57,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248488342]
[2021-11-13 18:15:57,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:15:57,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:15:57,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:15:57,817 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:15:57,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2021-11-13 18:15:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:15:58,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:15:58,073 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:15:58,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:15:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:58,264 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:15:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:15:58,445 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:15:58,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248488342]
[2021-11-13 18:15:58,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248488342] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:15:58,446 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:15:58,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 18:15:58,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996030644]
[2021-11-13 18:15:58,447 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:15:58,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:15:58,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:15:58,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:15:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:15:58,453 INFO L87 Difference]: Start difference. First operand 1298 states and 1518 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:01,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:01,699 INFO L93 Difference]: Finished difference Result 1888 states and 2232 transitions.
[2021-11-13 18:16:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:16:01,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38
[2021-11-13 18:16:01,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:01,710 INFO L225 Difference]: With dead ends: 1888
[2021-11-13 18:16:01,710 INFO L226 Difference]: Without dead ends: 1888
[2021-11-13 18:16:01,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:16:01,711 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 1737 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2662.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.28ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3175.99ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:01,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1738 Valid, 1321 Invalid, 1153 Unknown, 0 Unchecked, 11.28ms Time], IncrementalHoareTripleChecker [23 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 3175.99ms Time]
[2021-11-13 18:16:01,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states.
[2021-11-13 18:16:01,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1294.
[2021-11-13 18:16:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 805 states have (on average 1.8496894409937887) internal successors, (1489), 1283 states have internal predecessors, (1489), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:16:01,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1510 transitions.
[2021-11-13 18:16:01,747 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1510 transitions. Word has length 38
[2021-11-13 18:16:01,747 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:01,747 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 1510 transitions.
[2021-11-13 18:16:01,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:01,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1510 transitions.
[2021-11-13 18:16:01,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2021-11-13 18:16:01,749 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:01,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:01,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:01,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:01,963 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr53REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:01,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:01,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1075877826, now seen corresponding path program 1 times
[2021-11-13 18:16:01,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:01,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066022777]
[2021-11-13 18:16:01,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:16:01,965 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:01,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:01,966 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:02,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2021-11-13 18:16:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:16:02,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:16:02,271 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:02,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:16:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:02,616 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:03,152 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:03,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066022777]
[2021-11-13 18:16:03,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066022777] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:16:03,152 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:16:03,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:16:03,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509217021]
[2021-11-13 18:16:03,153 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:16:03,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:16:03,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:03,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:16:03,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:16:03,154 INFO L87 Difference]: Start difference. First operand 1294 states and 1510 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:12,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:12,121 INFO L93 Difference]: Finished difference Result 2013 states and 2334 transitions.
[2021-11-13 18:16:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 18:16:12,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38
[2021-11-13 18:16:12,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:12,132 INFO L225 Difference]: With dead ends: 2013
[2021-11-13 18:16:12,132 INFO L226 Difference]: Without dead ends: 2013
[2021-11-13 18:16:12,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2021-11-13 18:16:12,134 INFO L933 BasicCegarLoop]: 1397 mSDtfsCounter, 2529 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7736.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.01ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8748.53ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:12,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2530 Valid, 2537 Invalid, 1502 Unknown, 0 Unchecked, 16.01ms Time], IncrementalHoareTripleChecker [15 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 8748.53ms Time]
[2021-11-13 18:16:12,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states.
[2021-11-13 18:16:12,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1290.
[2021-11-13 18:16:12,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 805 states have (on average 1.839751552795031) internal successors, (1481), 1279 states have internal predecessors, (1481), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:16:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1502 transitions.
[2021-11-13 18:16:12,163 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1502 transitions. Word has length 38
[2021-11-13 18:16:12,163 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:12,163 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 1502 transitions.
[2021-11-13 18:16:12,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1502 transitions.
[2021-11-13 18:16:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2021-11-13 18:16:12,166 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:12,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:12,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:12,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:12,380 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr71REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1047493696, now seen corresponding path program 1 times
[2021-11-13 18:16:12,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:12,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354609712]
[2021-11-13 18:16:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:16:12,383 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:12,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:12,384 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:12,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2021-11-13 18:16:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:16:12,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:16:12,657 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:12,810 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:12,977 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:12,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354609712]
[2021-11-13 18:16:12,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354609712] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:16:12,977 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:16:12,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:16:12,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827552010]
[2021-11-13 18:16:12,978 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:16:12,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:16:12,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:12,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:16:12,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:16:12,979 INFO L87 Difference]: Start difference. First operand 1290 states and 1502 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:13,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:13,048 INFO L93 Difference]: Finished difference Result 1278 states and 1482 transitions.
[2021-11-13 18:16:13,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:16:13,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56
[2021-11-13 18:16:13,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:13,057 INFO L225 Difference]: With dead ends: 1278
[2021-11-13 18:16:13,057 INFO L226 Difference]: Without dead ends: 1278
[2021-11-13 18:16:13,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:16:13,059 INFO L933 BasicCegarLoop]: 1095 mSDtfsCounter, 1043 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.01ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.37ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:13,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 2230 Invalid, 41 Unknown, 0 Unchecked, 4.01ms Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 44.37ms Time]
[2021-11-13 18:16:13,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states.
[2021-11-13 18:16:13,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278.
[2021-11-13 18:16:13,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 793 states have (on average 1.8423707440100883) internal successors, (1461), 1267 states have internal predecessors, (1461), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:16:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1482 transitions.
[2021-11-13 18:16:13,089 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1482 transitions. Word has length 56
[2021-11-13 18:16:13,089 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:13,089 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 1482 transitions.
[2021-11-13 18:16:13,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1482 transitions.
[2021-11-13 18:16:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2021-11-13 18:16:13,092 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:13,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:13,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:13,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:13,312 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr71REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:13,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1905952116, now seen corresponding path program 1 times
[2021-11-13 18:16:13,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:13,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921324625]
[2021-11-13 18:16:13,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:16:13,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:13,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:13,313 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:13,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2021-11-13 18:16:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:16:13,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:16:13,775 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:13,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:16:13,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:16:14,686 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2021-11-13 18:16:14,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27
[2021-11-13 18:16:14,711 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2021-11-13 18:16:14,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20
[2021-11-13 18:16:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:14,763 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:21,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:21,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921324625]
[2021-11-13 18:16:21,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921324625] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:16:21,558 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:16:21,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:16:21,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348671224]
[2021-11-13 18:16:21,559 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:16:21,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:16:21,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:21,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:16:21,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30
[2021-11-13 18:16:21,561 INFO L87 Difference]: Start difference. First operand 1278 states and 1482 transitions. Second operand has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:27,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:27,130 INFO L93 Difference]: Finished difference Result 1668 states and 1955 transitions.
[2021-11-13 18:16:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:16:27,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64
[2021-11-13 18:16:27,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:27,139 INFO L225 Difference]: With dead ends: 1668
[2021-11-13 18:16:27,139 INFO L226 Difference]: Without dead ends: 1668
[2021-11-13 18:16:27,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30
[2021-11-13 18:16:27,140 INFO L933 BasicCegarLoop]: 834 mSDtfsCounter, 1644 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4744.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.92ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 995 IncrementalHoareTripleChecker+Unchecked, 5479.97ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:27,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1647 Valid, 1465 Invalid, 1814 Unknown, 0 Unchecked, 14.92ms Time], IncrementalHoareTripleChecker [38 Valid, 781 Invalid, 0 Unknown, 995 Unchecked, 5479.97ms Time]
[2021-11-13 18:16:27,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states.
[2021-11-13 18:16:27,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1248.
[2021-11-13 18:16:27,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 795 states have (on average 1.8) internal successors, (1431), 1237 states have internal predecessors, (1431), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:16:27,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1452 transitions.
[2021-11-13 18:16:27,180 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1452 transitions. Word has length 64
[2021-11-13 18:16:27,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:27,182 INFO L470 AbstractCegarLoop]: Abstraction has 1248 states and 1452 transitions.
[2021-11-13 18:16:27,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1452 transitions.
[2021-11-13 18:16:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2021-11-13 18:16:27,186 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:27,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:27,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:27,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:27,401 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr73REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:27,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:27,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1963905203, now seen corresponding path program 1 times
[2021-11-13 18:16:27,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:27,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786567805]
[2021-11-13 18:16:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:16:27,402 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:27,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:27,403 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:27,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2021-11-13 18:16:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:16:27,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:16:27,685 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:27,926 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:27,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-11-13 18:16:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:28,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:28,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786567805]
[2021-11-13 18:16:28,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786567805] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:16:28,344 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:16:28,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:16:28,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708462393]
[2021-11-13 18:16:28,344 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:16:28,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:16:28,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:28,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:16:28,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:16:28,346 INFO L87 Difference]: Start difference. First operand 1248 states and 1452 transitions. Second operand has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:31,215 INFO L93 Difference]: Finished difference Result 1246 states and 1450 transitions.
[2021-11-13 18:16:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:16:31,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66
[2021-11-13 18:16:31,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:31,224 INFO L225 Difference]: With dead ends: 1246
[2021-11-13 18:16:31,224 INFO L226 Difference]: Without dead ends: 1246
[2021-11-13 18:16:31,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:16:31,226 INFO L933 BasicCegarLoop]: 692 mSDtfsCounter, 2280 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2427.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.78ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2831.79ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:31,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 1333 Invalid, 563 Unknown, 0 Unchecked, 8.78ms Time], IncrementalHoareTripleChecker [23 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 2831.79ms Time]
[2021-11-13 18:16:31,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states.
[2021-11-13 18:16:31,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1246.
[2021-11-13 18:16:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 795 states have (on average 1.7974842767295598) internal successors, (1429), 1235 states have internal predecessors, (1429), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:16:31,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1450 transitions.
[2021-11-13 18:16:31,252 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1450 transitions. Word has length 66
[2021-11-13 18:16:31,252 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:31,253 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 1450 transitions.
[2021-11-13 18:16:31,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:31,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1450 transitions.
[2021-11-13 18:16:31,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2021-11-13 18:16:31,254 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:31,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:31,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:31,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:31,471 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr76REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:31,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:31,471 INFO L85 PathProgramCache]: Analyzing trace with hash -655072709, now seen corresponding path program 1 times
[2021-11-13 18:16:31,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:31,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740759958]
[2021-11-13 18:16:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:16:31,472 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:31,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:31,473 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:31,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2021-11-13 18:16:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:16:31,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:16:31,809 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:31,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:16:31,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 18
[2021-11-13 18:16:31,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2021-11-13 18:16:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:31,992 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:32,134 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:32,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740759958]
[2021-11-13 18:16:32,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740759958] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:16:32,134 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:16:32,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:16:32,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931433972]
[2021-11-13 18:16:32,135 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:16:32,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:16:32,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:32,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:16:32,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:16:32,136 INFO L87 Difference]: Start difference. First operand 1246 states and 1450 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:36,014 INFO L93 Difference]: Finished difference Result 1245 states and 1449 transitions.
[2021-11-13 18:16:36,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:16:36,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69
[2021-11-13 18:16:36,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:36,024 INFO L225 Difference]: With dead ends: 1245
[2021-11-13 18:16:36,024 INFO L226 Difference]: Without dead ends: 1245
[2021-11-13 18:16:36,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:16:36,025 INFO L933 BasicCegarLoop]: 1059 mSDtfsCounter, 4 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3259.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.69ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3799.33ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:36,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2732 Invalid, 1510 Unknown, 0 Unchecked, 10.69ms Time], IncrementalHoareTripleChecker [1 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 3799.33ms Time]
[2021-11-13 18:16:36,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states.
[2021-11-13 18:16:36,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1245.
[2021-11-13 18:16:36,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 795 states have (on average 1.7962264150943397) internal successors, (1428), 1234 states have internal predecessors, (1428), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:16:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1449 transitions.
[2021-11-13 18:16:36,082 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1449 transitions. Word has length 69
[2021-11-13 18:16:36,082 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:36,082 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 1449 transitions.
[2021-11-13 18:16:36,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1449 transitions.
[2021-11-13 18:16:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2021-11-13 18:16:36,084 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:36,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:36,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:36,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:36,301 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr77REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:36,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:36,302 INFO L85 PathProgramCache]: Analyzing trace with hash -655072708, now seen corresponding path program 1 times
[2021-11-13 18:16:36,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:36,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859785704]
[2021-11-13 18:16:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:16:36,303 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:36,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:36,305 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:36,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2021-11-13 18:16:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:16:36,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:16:36,711 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:36,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:16:36,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-11-13 18:16:36,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15
[2021-11-13 18:16:36,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27
[2021-11-13 18:16:36,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2021-11-13 18:16:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:37,019 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:37,446 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:37,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859785704]
[2021-11-13 18:16:37,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859785704] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:16:37,446 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:16:37,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-11-13 18:16:37,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101164642]
[2021-11-13 18:16:37,447 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:16:37,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-13 18:16:37,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:37,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-13 18:16:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:16:37,449 INFO L87 Difference]: Start difference. First operand 1245 states and 1449 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:49,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:49,552 INFO L93 Difference]: Finished difference Result 1244 states and 1448 transitions.
[2021-11-13 18:16:49,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:16:49,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69
[2021-11-13 18:16:49,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:49,559 INFO L225 Difference]: With dead ends: 1244
[2021-11-13 18:16:49,559 INFO L226 Difference]: Without dead ends: 1244
[2021-11-13 18:16:49,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:16:49,561 INFO L933 BasicCegarLoop]: 1059 mSDtfsCounter, 3 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10699.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3927 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.63ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11960.63ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:49,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3927 Invalid, 2433 Unknown, 0 Unchecked, 17.63ms Time], IncrementalHoareTripleChecker [1 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 11960.63ms Time]
[2021-11-13 18:16:49,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states.
[2021-11-13 18:16:49,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1244.
[2021-11-13 18:16:49,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 794 states have (on average 1.7972292191435768) internal successors, (1427), 1233 states have internal predecessors, (1427), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:16:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1448 transitions.
[2021-11-13 18:16:49,589 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1448 transitions. Word has length 69
[2021-11-13 18:16:49,590 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:49,590 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 1448 transitions.
[2021-11-13 18:16:49,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:16:49,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1448 transitions.
[2021-11-13 18:16:49,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2021-11-13 18:16:49,592 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:49,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:49,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0
[2021-11-13 18:16:49,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:49,825 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:49,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:49,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1548642594, now seen corresponding path program 1 times
[2021-11-13 18:16:49,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:49,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273225875]
[2021-11-13 18:16:49,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:16:49,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:49,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:49,828 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:49,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2021-11-13 18:16:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:16:50,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:16:50,170 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:50,364 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:50,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:50,563 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:50,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273225875]
[2021-11-13 18:16:50,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273225875] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:16:50,563 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:16:50,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-13 18:16:50,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757974756]
[2021-11-13 18:16:50,566 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:16:50,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:16:50,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:50,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:16:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:16:50,568 INFO L87 Difference]: Start difference. First operand 1244 states and 1448 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:16:50,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:50,685 INFO L93 Difference]: Finished difference Result 1254 states and 1461 transitions.
[2021-11-13 18:16:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:16:50,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 77
[2021-11-13 18:16:50,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:50,694 INFO L225 Difference]: With dead ends: 1254
[2021-11-13 18:16:50,694 INFO L226 Difference]: Without dead ends: 1254
[2021-11-13 18:16:50,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:16:50,695 INFO L933 BasicCegarLoop]: 1059 mSDtfsCounter, 9 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.13ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.95ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:50,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 3171 Invalid, 35 Unknown, 0 Unchecked, 3.13ms Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 79.95ms Time]
[2021-11-13 18:16:50,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states.
[2021-11-13 18:16:50,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1254.
[2021-11-13 18:16:50,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 802 states have (on average 1.7942643391521198) internal successors, (1439), 1242 states have internal predecessors, (1439), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 10 states have call successors, (11)
[2021-11-13 18:16:50,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1461 transitions.
[2021-11-13 18:16:50,743 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1461 transitions. Word has length 77
[2021-11-13 18:16:50,743 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:50,744 INFO L470 AbstractCegarLoop]: Abstraction has 1254 states and 1461 transitions.
[2021-11-13 18:16:50,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:16:50,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1461 transitions.
[2021-11-13 18:16:50,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2021-11-13 18:16:50,745 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:50,746 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:50,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:50,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:50,971 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:50,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:50,972 INFO L85 PathProgramCache]: Analyzing trace with hash 107741602, now seen corresponding path program 1 times
[2021-11-13 18:16:50,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:50,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142458364]
[2021-11-13 18:16:50,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:16:50,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:50,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:50,974 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:50,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2021-11-13 18:16:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:16:51,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:16:51,299 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:51,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:51,477 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:51,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:51,761 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:51,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142458364]
[2021-11-13 18:16:51,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142458364] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:16:51,762 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:16:51,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2021-11-13 18:16:51,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323878635]
[2021-11-13 18:16:51,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:16:51,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 18:16:51,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:51,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 18:16:51,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:16:51,765 INFO L87 Difference]: Start difference. First operand 1254 states and 1461 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:16:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:52,213 INFO L93 Difference]: Finished difference Result 1268 states and 1479 transitions.
[2021-11-13 18:16:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-11-13 18:16:52,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 79
[2021-11-13 18:16:52,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:52,220 INFO L225 Difference]: With dead ends: 1268
[2021-11-13 18:16:52,220 INFO L226 Difference]: Without dead ends: 1264
[2021-11-13 18:16:52,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306
[2021-11-13 18:16:52,222 INFO L933 BasicCegarLoop]: 1061 mSDtfsCounter, 33 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 192.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.88ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 219.99ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:52,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 4235 Invalid, 104 Unknown, 0 Unchecked, 5.88ms Time], IncrementalHoareTripleChecker [19 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 219.99ms Time]
[2021-11-13 18:16:52,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states.
[2021-11-13 18:16:52,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1260.
[2021-11-13 18:16:52,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 808 states have (on average 1.7908415841584158) internal successors, (1447), 1248 states have internal predecessors, (1447), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 10 states have call successors, (11)
[2021-11-13 18:16:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1469 transitions.
[2021-11-13 18:16:52,250 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1469 transitions. Word has length 79
[2021-11-13 18:16:52,250 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:52,251 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 1469 transitions.
[2021-11-13 18:16:52,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:16:52,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1469 transitions.
[2021-11-13 18:16:52,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2021-11-13 18:16:52,253 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:52,253 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:52,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:52,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:52,483 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:52,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:52,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1478677154, now seen corresponding path program 2 times
[2021-11-13 18:16:52,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:52,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640695567]
[2021-11-13 18:16:52,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 18:16:52,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:52,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:52,486 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:52,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2021-11-13 18:16:53,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-11-13 18:16:53,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:16:53,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-11-13 18:16:53,176 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:53,459 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:53,459 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:54,055 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:54,055 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:54,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640695567]
[2021-11-13 18:16:54,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640695567] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:16:54,055 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:16:54,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2021-11-13 18:16:54,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287587552]
[2021-11-13 18:16:54,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:16:54,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2021-11-13 18:16:54,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:54,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-11-13 18:16:54,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306
[2021-11-13 18:16:54,058 INFO L87 Difference]: Start difference. First operand 1260 states and 1469 transitions. Second operand has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:16:55,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:16:55,757 INFO L93 Difference]: Finished difference Result 1288 states and 1507 transitions.
[2021-11-13 18:16:55,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states.
[2021-11-13 18:16:55,758 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 83
[2021-11-13 18:16:55,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:16:55,764 INFO L225 Difference]: With dead ends: 1288
[2021-11-13 18:16:55,764 INFO L226 Difference]: Without dead ends: 1284
[2021-11-13 18:16:55,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=457, Invalid=949, Unknown=0, NotChecked=0, Total=1406
[2021-11-13 18:16:55,766 INFO L933 BasicCegarLoop]: 1065 mSDtfsCounter, 65 mSDsluCounter, 10591 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 641.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 11656 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.90ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 736.83ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:16:55,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 11656 Invalid, 397 Unknown, 0 Unchecked, 14.90ms Time], IncrementalHoareTripleChecker [63 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 736.83ms Time]
[2021-11-13 18:16:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states.
[2021-11-13 18:16:55,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1272.
[2021-11-13 18:16:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 820 states have (on average 1.7841463414634147) internal successors, (1463), 1260 states have internal predecessors, (1463), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 10 states have call successors, (11)
[2021-11-13 18:16:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1485 transitions.
[2021-11-13 18:16:55,797 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1485 transitions. Word has length 83
[2021-11-13 18:16:55,797 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:16:55,797 INFO L470 AbstractCegarLoop]: Abstraction has 1272 states and 1485 transitions.
[2021-11-13 18:16:55,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:16:55,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1485 transitions.
[2021-11-13 18:16:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2021-11-13 18:16:55,799 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:16:55,800 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:16:55,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0
[2021-11-13 18:16:56,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:16:56,015 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:16:56,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:16:56,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2053043362, now seen corresponding path program 3 times
[2021-11-13 18:16:56,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:16:56,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620410766]
[2021-11-13 18:16:56,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-11-13 18:16:56,016 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:16:56,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:16:56,017 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:16:56,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2021-11-13 18:16:56,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s)
[2021-11-13 18:16:56,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:16:57,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 18 conjunts are in the unsatisfiable core
[2021-11-13 18:16:57,015 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:16:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:57,561 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:16:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:16:59,606 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:16:59,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620410766]
[2021-11-13 18:16:59,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620410766] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:16:59,607 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:16:59,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34
[2021-11-13 18:16:59,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859045802]
[2021-11-13 18:16:59,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:16:59,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2021-11-13 18:16:59,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:16:59,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2021-11-13 18:16:59,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122
[2021-11-13 18:16:59,611 INFO L87 Difference]: Start difference. First operand 1272 states and 1485 transitions. Second operand has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:17:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:17:08,807 INFO L93 Difference]: Finished difference Result 1328 states and 1569 transitions.
[2021-11-13 18:17:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states.
[2021-11-13 18:17:08,808 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 91
[2021-11-13 18:17:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:17:08,813 INFO L225 Difference]: With dead ends: 1328
[2021-11-13 18:17:08,813 INFO L226 Difference]: Without dead ends: 1322
[2021-11-13 18:17:08,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=1377, Invalid=2783, Unknown=0, NotChecked=0, Total=4160
[2021-11-13 18:17:08,816 INFO L933 BasicCegarLoop]: 1072 mSDtfsCounter, 224 mSDsluCounter, 16022 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2446.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 17094 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.66ms SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2806.18ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:17:08,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 17094 Invalid, 1406 Unknown, 0 Unchecked, 24.66ms Time], IncrementalHoareTripleChecker [175 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 2806.18ms Time]
[2021-11-13 18:17:08,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states.
[2021-11-13 18:17:08,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1296.
[2021-11-13 18:17:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 844 states have (on average 1.7701421800947867) internal successors, (1494), 1284 states have internal predecessors, (1494), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 10 states have call successors, (11)
[2021-11-13 18:17:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1516 transitions.
[2021-11-13 18:17:08,848 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1516 transitions. Word has length 91
[2021-11-13 18:17:08,849 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:17:08,849 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 1516 transitions.
[2021-11-13 18:17:08,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:17:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1516 transitions.
[2021-11-13 18:17:08,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2021-11-13 18:17:08,851 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:17:08,851 INFO L514 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:17:08,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0
[2021-11-13 18:17:09,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:17:09,055 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:17:09,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:17:09,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1896954018, now seen corresponding path program 4 times
[2021-11-13 18:17:09,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:17:09,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024436255]
[2021-11-13 18:17:09,056 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2021-11-13 18:17:09,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:17:09,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:17:09,059 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:17:09,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process
[2021-11-13 18:17:09,460 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-11-13 18:17:09,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:17:09,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 33 conjunts are in the unsatisfiable core
[2021-11-13 18:17:09,487 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:17:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:17:10,724 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:17:15,461 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:17:15,462 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:17:15,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024436255]
[2021-11-13 18:17:15,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024436255] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:17:15,462 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:17:15,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66
[2021-11-13 18:17:15,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896455143]
[2021-11-13 18:17:15,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:17:15,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states
[2021-11-13 18:17:15,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:17:15,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants.
[2021-11-13 18:17:15,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290
[2021-11-13 18:17:15,469 INFO L87 Difference]: Start difference. First operand 1296 states and 1516 transitions. Second operand has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:17:31,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:17:31,860 INFO L93 Difference]: Finished difference Result 1388 states and 1636 transitions.
[2021-11-13 18:17:31,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states.
[2021-11-13 18:17:31,864 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 107
[2021-11-13 18:17:31,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:17:31,867 INFO L225 Difference]: With dead ends: 1388
[2021-11-13 18:17:31,868 INFO L226 Difference]: Without dead ends: 1384
[2021-11-13 18:17:31,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=4503, Invalid=14679, Unknown=0, NotChecked=0, Total=19182
[2021-11-13 18:17:31,877 INFO L933 BasicCegarLoop]: 1088 mSDtfsCounter, 261 mSDsluCounter, 33609 mSDsCounter, 0 mSdLazyCounter, 4031 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7551.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 34697 SdHoareTripleChecker+Invalid, 4536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.47ms SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 4031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8636.78ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:17:31,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 34697 Invalid, 4536 Unknown, 0 Unchecked, 52.47ms Time], IncrementalHoareTripleChecker [505 Valid, 4031 Invalid, 0 Unknown, 0 Unchecked, 8636.78ms Time]
[2021-11-13 18:17:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states.
[2021-11-13 18:17:31,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1326.
[2021-11-13 18:17:31,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 874 states have (on average 1.7620137299771168) internal successors, (1540), 1314 states have internal predecessors, (1540), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 10 states have call successors, (11)
[2021-11-13 18:17:31,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1562 transitions.
[2021-11-13 18:17:31,915 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1562 transitions. Word has length 107
[2021-11-13 18:17:31,916 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:17:31,916 INFO L470 AbstractCegarLoop]: Abstraction has 1326 states and 1562 transitions.
[2021-11-13 18:17:31,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:17:31,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1562 transitions.
[2021-11-13 18:17:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122
[2021-11-13 18:17:31,918 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:17:31,919 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:17:31,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0
[2021-11-13 18:17:32,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:17:32,135 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 635 more)] ===
[2021-11-13 18:17:32,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:17:32,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1816175650, now seen corresponding path program 5 times
[2021-11-13 18:17:32,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:17:32,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853503273]
[2021-11-13 18:17:32,136 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2021-11-13 18:17:32,136 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:17:32,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:17:32,137 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:17:32,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6cd748-d6c9-4fe0-86ce-e7dd97af3163/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process
[2021-11-13 18:17:33,536 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s)
[2021-11-13 18:17:33,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:17:33,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 54 conjunts are in the unsatisfiable core
[2021-11-13 18:17:33,583 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:17:33,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:17:33,880 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size
[2021-11-13 18:17:33,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29
[2021-11-13 18:17:33,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 22
[2021-11-13 18:17:34,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24