./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.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_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/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_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/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_06b14f54-5f19-4a75-9a51-6715872ff9a1/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 ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:32:42,529 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:32:42,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:32:42,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:32:42,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:32:42,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:32:42,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:32:42,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:32:42,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:32:42,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:32:42,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:32:42,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:32:42,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:32:42,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:32:42,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:32:42,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:32:42,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:32:42,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:32:42,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:32:42,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:32:42,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:32:42,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:32:42,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:32:42,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:32:42,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:32:42,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:32:42,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:32:42,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:32:42,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:32:42,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:32:42,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:32:42,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:32:42,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:32:42,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:32:42,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:32:42,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:32:42,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:32:42,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:32:42,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:32:42,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:32:42,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:32:42,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2021-11-13 18:32:42,713 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:32:42,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:32:42,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:32:42,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:32:42,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:32:42,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:32:42,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:32:42,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:32:42,725 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:32:42,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:32:42,726 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:32:42,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-11-13 18:32:42,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:32:42,727 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:32:42,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:32:42,727 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-11-13 18:32:42,727 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-11-13 18:32:42,728 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-11-13 18:32:42,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:32:42,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-11-13 18:32:42,728 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:32:42,728 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:32:42,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:32:42,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:32:42,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:32:42,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:32:42,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:32:42,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:32:42,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:32:42,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 18:32:42,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:32:42,732 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237
[2021-11-13 18:32:43,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:32:43,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:32:43,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:32:43,077 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:32:43,077 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:32:43,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i
[2021-11-13 18:32:43,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data/a31a36232/0b312c8d337442848ac253840539b376/FLAGb9919f63c
[2021-11-13 18:32:43,869 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:32:43,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i
[2021-11-13 18:32:43,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data/a31a36232/0b312c8d337442848ac253840539b376/FLAGb9919f63c
[2021-11-13 18:32:44,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data/a31a36232/0b312c8d337442848ac253840539b376
[2021-11-13 18:32:44,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:32:44,106 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-11-13 18:32:44,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:32:44,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:32:44,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:32:44,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:32:44" (1/1) ...
[2021-11-13 18:32:44,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486a704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:44, skipping insertion in model container
[2021-11-13 18:32:44,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:32:44" (1/1) ...
[2021-11-13 18:32:44,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:32:44,223 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:32:44,797 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034]
[2021-11-13 18:32:45,001 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247]
[2021-11-13 18:32:45,014 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:32:45,035 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 18:32:45,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e52ed8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:45, skipping insertion in model container
[2021-11-13 18:32:45,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:32:45,041 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor
[2021-11-13 18:32:45,043 INFO L158 Benchmark]: Toolchain (without parser) took 936.15ms. Allocated memory is still 100.7MB. Free memory was 59.4MB in the beginning and 65.4MB in the end (delta: -6.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB.
[2021-11-13 18:32:45,045 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory was 78.3MB in the beginning and 78.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:32:45,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 930.06ms. Allocated memory is still 100.7MB. Free memory was 59.2MB in the beginning and 65.8MB in the end (delta: -6.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB.
[2021-11-13 18:32:45,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory was 78.3MB in the beginning and 78.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 930.06ms. Allocated memory is still 100.7MB. Free memory was 59.2MB in the beginning and 65.8MB in the end (delta: -6.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 766]: 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/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_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/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_06b14f54-5f19-4a75-9a51-6715872ff9a1/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 ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:32:47,427 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:32:47,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:32:47,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:32:47,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:32:47,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:32:47,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:32:47,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:32:47,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:32:47,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:32:47,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:32:47,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:32:47,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:32:47,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:32:47,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:32:47,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:32:47,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:32:47,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:32:47,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:32:47,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:32:47,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:32:47,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:32:47,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:32:47,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:32:47,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:32:47,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:32:47,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:32:47,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:32:47,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:32:47,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:32:47,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:32:47,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:32:47,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:32:47,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:32:47,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:32:47,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:32:47,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:32:47,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:32:47,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:32:47,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:32:47,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:32:47,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2021-11-13 18:32:47,618 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:32:47,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:32:47,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:32:47,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:32:47,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:32:47,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:32:47,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:32:47,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:32:47,622 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:32:47,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:32:47,624 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:32:47,624 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-11-13 18:32:47,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:32:47,624 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:32:47,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:32:47,625 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-11-13 18:32:47,625 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-11-13 18:32:47,625 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-11-13 18:32:47,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:32:47,626 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-11-13 18:32:47,626 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 18:32:47,626 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 18:32:47,627 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:32:47,627 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:32:47,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:32:47,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:32:47,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:32:47,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:32:47,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:32:47,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:32:47,629 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 18:32:47,629 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 18:32:47,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:32:47,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 18:32:47,630 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237
[2021-11-13 18:32:48,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:32:48,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:32:48,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:32:48,049 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:32:48,050 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:32:48,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i
[2021-11-13 18:32:48,129 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data/cbba4b5f0/480217b4665f4d5aadd2dfd6dd3e97f8/FLAG4c8f965ad
[2021-11-13 18:32:48,857 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:32:48,857 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i
[2021-11-13 18:32:48,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data/cbba4b5f0/480217b4665f4d5aadd2dfd6dd3e97f8/FLAG4c8f965ad
[2021-11-13 18:32:49,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/data/cbba4b5f0/480217b4665f4d5aadd2dfd6dd3e97f8
[2021-11-13 18:32:49,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:32:49,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-11-13 18:32:49,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:32:49,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:32:49,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:32:49,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:32:49" (1/1) ...
[2021-11-13 18:32:49,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a09f3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:49, skipping insertion in model container
[2021-11-13 18:32:49,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:32:49" (1/1) ...
[2021-11-13 18:32:49,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:32:49,168 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:32:49,728 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034]
[2021-11-13 18:32:49,909 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247]
[2021-11-13 18:32:49,916 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:32:49,928 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2021-11-13 18:32:49,949 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:32:49,966 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034]
[2021-11-13 18:32:50,071 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247]
[2021-11-13 18:32:50,090 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:32:50,100 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:32:50,129 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034]
[2021-11-13 18:32:50,179 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_06b14f54-5f19-4a75-9a51-6715872ff9a1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247]
[2021-11-13 18:32:50,182 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:32:50,228 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:32:50,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50 WrapperNode
[2021-11-13 18:32:50,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:32:50,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:32:50,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:32:50,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:32:50,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (1/1) ...
[2021-11-13 18:32:50,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (1/1) ...
[2021-11-13 18:32:50,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (1/1) ...
[2021-11-13 18:32:50,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (1/1) ...
[2021-11-13 18:32:50,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (1/1) ...
[2021-11-13 18:32:50,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (1/1) ...
[2021-11-13 18:32:50,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (1/1) ...
[2021-11-13 18:32:50,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:32:50,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:32:50,404 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:32:50,404 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:32:50,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (1/1) ...
[2021-11-13 18:32:50,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:32:50,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:32:50,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:32:50,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:32:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-11-13 18:32:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:32:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode
[2021-11-13 18:32:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32
[2021-11-13 18:32:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64
[2021-11-13 18:32:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2021-11-13 18:32:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2021-11-13 18:32:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2021-11-13 18:32:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-11-13 18:32:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-11-13 18:32:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int
[2021-11-13 18:32:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-11-13 18:32:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2021-11-13 18:32:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy
[2021-11-13 18:32:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure memmove
[2021-11-13 18:32:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy
[2021-11-13 18:32:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure memset
[2021-11-13 18:32:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp
[2021-11-13 18:32:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure memchr
[2021-11-13 18:32:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy
[2021-11-13 18:32:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy
[2021-11-13 18:32:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure strcat
[2021-11-13 18:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure strncat
[2021-11-13 18:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp
[2021-11-13 18:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp
[2021-11-13 18:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll
[2021-11-13 18:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm
[2021-11-13 18:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l
[2021-11-13 18:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l
[2021-11-13 18:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure strdup
[2021-11-13 18:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure strndup
[2021-11-13 18:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure strchr
[2021-11-13 18:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr
[2021-11-13 18:32:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn
[2021-11-13 18:32:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure strspn
[2021-11-13 18:32:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk
[2021-11-13 18:32:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure strstr
[2021-11-13 18:32:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtok
[2021-11-13 18:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r
[2021-11-13 18:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r
[2021-11-13 18:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure strlen
[2021-11-13 18:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen
[2021-11-13 18:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure strerror
[2021-11-13 18:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r
[2021-11-13 18:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l
[2021-11-13 18:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp
[2021-11-13 18:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy
[2021-11-13 18:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure bzero
[2021-11-13 18:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure index
[2021-11-13 18:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure rindex
[2021-11-13 18:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure ffs
[2021-11-13 18:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl
[2021-11-13 18:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll
[2021-11-13 18:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp
[2021-11-13 18:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp
[2021-11-13 18:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l
[2021-11-13 18:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l
[2021-11-13 18:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero
[2021-11-13 18:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure strsep
[2021-11-13 18:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal
[2021-11-13 18:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy
[2021-11-13 18:32:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy
[2021-11-13 18:32:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy
[2021-11-13 18:32:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy
[2021-11-13 18:32:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2021-11-13 18:32:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2021-11-13 18:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2021-11-13 18:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2021-11-13 18:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2021-11-13 18:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2021-11-13 18:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2021-11-13 18:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2021-11-13 18:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2021-11-13 18:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2021-11-13 18:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2021-11-13 18:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2021-11-13 18:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2021-11-13 18:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2021-11-13 18:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2021-11-13 18:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2021-11-13 18:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32
[2021-11-13 18:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64
[2021-11-13 18:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity
[2021-11-13 18:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity
[2021-11-13 18:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity
[2021-11-13 18:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2021-11-13 18:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2021-11-13 18:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2021-11-13 18:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2021-11-13 18:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2021-11-13 18:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2021-11-13 18:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2021-11-13 18:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2021-11-13 18:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2021-11-13 18:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2021-11-13 18:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2021-11-13 18:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2021-11-13 18:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2021-11-13 18:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2021-11-13 18:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2021-11-13 18:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2021-11-13 18:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2021-11-13 18:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2021-11-13 18:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2021-11-13 18:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2021-11-13 18:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2021-11-13 18:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2021-11-13 18:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2021-11-13 18:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2021-11-13 18:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2021-11-13 18:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2021-11-13 18:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2021-11-13 18:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2021-11-13 18:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2021-11-13 18:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2021-11-13 18:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2021-11-13 18:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2021-11-13 18:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2021-11-13 18:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2021-11-13 18:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2021-11-13 18:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2021-11-13 18:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2021-11-13 18:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2021-11-13 18:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2021-11-13 18:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2021-11-13 18:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2021-11-13 18:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2021-11-13 18:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-11-13 18:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2021-11-13 18:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2021-11-13 18:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2021-11-13 18:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2021-11-13 18:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2021-11-13 18:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2021-11-13 18:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2021-11-13 18:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2021-11-13 18:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2021-11-13 18:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2021-11-13 18:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2021-11-13 18:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2021-11-13 18:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2021-11-13 18:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2021-11-13 18:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2021-11-13 18:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2021-11-13 18:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2021-11-13 18:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2021-11-13 18:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2021-11-13 18:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2021-11-13 18:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2021-11-13 18:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2021-11-13 18:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2021-11-13 18:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2021-11-13 18:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2021-11-13 18:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2021-11-13 18:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2021-11-13 18:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2021-11-13 18:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2021-11-13 18:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2021-11-13 18:32:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2021-11-13 18:32:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2021-11-13 18:32:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2021-11-13 18:32:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2021-11-13 18:32:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2021-11-13 18:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2021-11-13 18:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2021-11-13 18:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2021-11-13 18:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2021-11-13 18:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2021-11-13 18:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2021-11-13 18:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2021-11-13 18:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2021-11-13 18:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-11-13 18:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2021-11-13 18:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2021-11-13 18:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-11-13 18:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-11-13 18:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure test_int
[2021-11-13 18:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-11-13 18:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-11-13 18:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-13 18:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-11-13 18:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2021-11-13 18:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-11-13 18:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-11-13 18:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2021-11-13 18:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 18:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-11-13 18:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 18:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode
[2021-11-13 18:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2021-11-13 18:32:50,988 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-13 18:32:55,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:32:55,952 INFO L299 CfgBuilder]: Removed 62 assume(true) statements.
[2021-11-13 18:32:55,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:32:55 BoogieIcfgContainer
[2021-11-13 18:32:55,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:32:55,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:32:55,959 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:32:55,962 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:32:55,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:32:49" (1/3) ...
[2021-11-13 18:32:55,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96f7b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:32:55, skipping insertion in model container
[2021-11-13 18:32:55,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:50" (2/3) ...
[2021-11-13 18:32:55,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96f7b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:32:55, skipping insertion in model container
[2021-11-13 18:32:55,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:32:55" (3/3) ...
[2021-11-13 18:32:55,965 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-1.i
[2021-11-13 18:32:55,971 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:32:55,971 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 536 error locations.
[2021-11-13 18:32:56,019 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:32:56,026 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 18:32:56,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 536 error locations.
[2021-11-13 18:32:56,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 1102 states, 541 states have (on average 2.2384473197781887) internal successors, (1211), 1089 states have internal predecessors, (1211), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22)
[2021-11-13 18:32:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-11-13 18:32:56,078 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:32:56,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:32:56,080 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:32:56,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:32:56,085 INFO L85 PathProgramCache]: Analyzing trace with hash -292335135, now seen corresponding path program 1 times
[2021-11-13 18:32:56,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:32:56,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537393024]
[2021-11-13 18:32:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:32:56,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:32:56,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:32:56,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:32:56,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 18:32:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:32:56,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:32:56,373 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:32:56,478 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 18:32:56,489 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 18:32:56,489 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:32:56,520 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 18:32:56,521 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:32:56,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537393024]
[2021-11-13 18:32:56,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537393024] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:32:56,523 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:32:56,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 18:32:56,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905805271]
[2021-11-13 18:32:56,525 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:32:56,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:32:56,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:32:56,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:32:56,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:32:56,594 INFO L87 Difference]: Start difference. First operand has 1102 states, 541 states have (on average 2.2384473197781887) internal successors, (1211), 1089 states have internal predecessors, (1211), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) 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 18:32:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:32:58,715 INFO L93 Difference]: Finished difference Result 1105 states and 1191 transitions.
[2021-11-13 18:32:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:32:58,721 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 18:32:58,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:32:58,762 INFO L225 Difference]: With dead ends: 1105
[2021-11-13 18:32:58,762 INFO L226 Difference]: Without dead ends: 1102
[2021-11-13 18:32:58,765 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 18:32:58,772 INFO L933 BasicCegarLoop]: 701 mSDtfsCounter, 971 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1626.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.64ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2008.54ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:32:58,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 835 Invalid, 565 Unknown, 0 Unchecked, 19.64ms Time], IncrementalHoareTripleChecker [16 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 2008.54ms Time]
[2021-11-13 18:32:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states.
[2021-11-13 18:32:58,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1090.
[2021-11-13 18:32:58,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 544 states have (on average 2.088235294117647) internal successors, (1136), 1077 states have internal predecessors, (1136), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22)
[2021-11-13 18:32:58,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1181 transitions.
[2021-11-13 18:32:58,966 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1181 transitions. Word has length 7
[2021-11-13 18:32:58,967 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:32:58,967 INFO L470 AbstractCegarLoop]: Abstraction has 1090 states and 1181 transitions.
[2021-11-13 18:32:58,967 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 18:32:58,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1181 transitions.
[2021-11-13 18:32:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-11-13 18:32:58,968 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:32:58,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:32:58,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:32:59,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:32:59,181 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:32:59,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:32:59,182 INFO L85 PathProgramCache]: Analyzing trace with hash -292335134, now seen corresponding path program 1 times
[2021-11-13 18:32:59,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:32:59,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176865653]
[2021-11-13 18:32:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:32:59,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:32:59,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:32:59,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:32:59,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 18:32:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:32:59,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:32:59,384 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:32:59,435 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 18:32:59,460 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 18:32:59,460 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:32:59,541 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 18:32:59,541 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:32:59,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176865653]
[2021-11-13 18:32:59,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176865653] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:32:59,542 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:32:59,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3
[2021-11-13 18:32:59,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646708389]
[2021-11-13 18:32:59,545 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:32:59,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:32:59,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:32:59,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:32:59,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:32:59,548 INFO L87 Difference]: Start difference. First operand 1090 states and 1181 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 18:33:04,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:04,274 INFO L93 Difference]: Finished difference Result 1566 states and 1691 transitions.
[2021-11-13 18:33:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:04,275 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 18:33:04,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:04,284 INFO L225 Difference]: With dead ends: 1566
[2021-11-13 18:33:04,285 INFO L226 Difference]: Without dead ends: 1566
[2021-11-13 18:33:04,285 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 18:33:04,287 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 1557 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3995.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.00ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4629.12ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:04,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1560 Valid, 1520 Invalid, 905 Unknown, 0 Unchecked, 20.00ms Time], IncrementalHoareTripleChecker [19 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 4629.12ms Time]
[2021-11-13 18:33:04,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states.
[2021-11-13 18:33:04,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1129.
[2021-11-13 18:33:04,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 591 states have (on average 2.0676818950930627) internal successors, (1222), 1115 states have internal predecessors, (1222), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23)
[2021-11-13 18:33:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1269 transitions.
[2021-11-13 18:33:04,347 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1269 transitions. Word has length 7
[2021-11-13 18:33:04,348 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:04,348 INFO L470 AbstractCegarLoop]: Abstraction has 1129 states and 1269 transitions.
[2021-11-13 18:33:04,349 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 18:33:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1269 transitions.
[2021-11-13 18:33:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:33:04,351 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:04,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:33:04,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:04,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:04,566 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr7REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:04,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:04,567 INFO L85 PathProgramCache]: Analyzing trace with hash -184131353, now seen corresponding path program 1 times
[2021-11-13 18:33:04,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:04,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799597209]
[2021-11-13 18:33:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:04,568 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:04,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:04,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:04,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 18:33:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:04,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:04,762 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:04,798 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 18:33:04,839 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 18:33:04,840 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:04,938 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 18:33:04,939 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:04,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799597209]
[2021-11-13 18:33:04,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799597209] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:04,939 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:04,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3
[2021-11-13 18:33:04,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641206256]
[2021-11-13 18:33:04,940 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:04,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:33:04,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:04,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:33:04,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:33:04,941 INFO L87 Difference]: Start difference. First operand 1129 states and 1269 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 18:33:10,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:10,505 INFO L93 Difference]: Finished difference Result 1565 states and 1690 transitions.
[2021-11-13 18:33:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:10,507 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 18:33:10,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:10,516 INFO L225 Difference]: With dead ends: 1565
[2021-11-13 18:33:10,516 INFO L226 Difference]: Without dead ends: 1565
[2021-11-13 18:33:10,517 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 18:33:10,518 INFO L933 BasicCegarLoop]: 1210 mSDtfsCounter, 752 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4733.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.36ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5468.57ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:10,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 2174 Invalid, 1275 Unknown, 0 Unchecked, 18.36ms Time], IncrementalHoareTripleChecker [16 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 5468.57ms Time]
[2021-11-13 18:33:10,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states.
[2021-11-13 18:33:10,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1327.
[2021-11-13 18:33:10,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 798 states have (on average 2.0426065162907268) internal successors, (1630), 1312 states have internal predecessors, (1630), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:10,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1679 transitions.
[2021-11-13 18:33:10,565 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1679 transitions. Word has length 12
[2021-11-13 18:33:10,565 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:10,565 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 1679 transitions.
[2021-11-13 18:33:10,565 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 18:33:10,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1679 transitions.
[2021-11-13 18:33:10,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:33:10,566 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:10,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:33:10,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:10,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:10,779 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:10,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:10,779 INFO L85 PathProgramCache]: Analyzing trace with hash -184131354, now seen corresponding path program 1 times
[2021-11-13 18:33:10,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:10,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654435880]
[2021-11-13 18:33:10,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:10,781 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:10,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:10,782 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:10,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-13 18:33:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:10,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:33:10,947 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:10,975 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 18:33:10,991 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 18:33:10,991 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:11,042 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 18:33:11,043 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:11,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654435880]
[2021-11-13 18:33:11,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654435880] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:11,044 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:11,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 18:33:11,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057137394]
[2021-11-13 18:33:11,044 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:11,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:33:11,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:11,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:33:11,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:33:11,046 INFO L87 Difference]: Start difference. First operand 1327 states and 1679 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 18:33:13,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:13,320 INFO L93 Difference]: Finished difference Result 1656 states and 2033 transitions.
[2021-11-13 18:33:13,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:33:13,321 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 18:33:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:13,330 INFO L225 Difference]: With dead ends: 1656
[2021-11-13 18:33:13,331 INFO L226 Difference]: Without dead ends: 1656
[2021-11-13 18:33:13,331 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 18:33:13,332 INFO L933 BasicCegarLoop]: 999 mSDtfsCounter, 980 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1839.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.52ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2209.21ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:13,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [985 Valid, 1308 Invalid, 760 Unknown, 0 Unchecked, 10.52ms Time], IncrementalHoareTripleChecker [54 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 2209.21ms Time]
[2021-11-13 18:33:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states.
[2021-11-13 18:33:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1280.
[2021-11-13 18:33:13,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 798 states have (on average 1.9774436090225564) internal successors, (1578), 1265 states have internal predecessors, (1578), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1627 transitions.
[2021-11-13 18:33:13,373 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1627 transitions. Word has length 12
[2021-11-13 18:33:13,373 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:13,373 INFO L470 AbstractCegarLoop]: Abstraction has 1280 states and 1627 transitions.
[2021-11-13 18:33:13,373 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 18:33:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1627 transitions.
[2021-11-13 18:33:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-11-13 18:33:13,374 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:13,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:33:13,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:13,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:13,598 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr534ENSURES_VIOLATIONMEMORY_LEAK === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:13,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash -42398436, now seen corresponding path program 1 times
[2021-11-13 18:33:13,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:13,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639586311]
[2021-11-13 18:33:13,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:13,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:13,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:13,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:13,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-13 18:33:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:13,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:13,845 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:13,863 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:33:13,864 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:33:13,865 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:33:13,934 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size
[2021-11-13 18:33:13,935 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 3 case distinctions, treesize of input 30 treesize of output 36
[2021-11-13 18:33:14,012 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size
[2021-11-13 18:33:14,013 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 18:33:14,041 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 18:33:14,041 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:14,122 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 18:33:14,122 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:14,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639586311]
[2021-11-13 18:33:14,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639586311] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:14,123 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:14,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-13 18:33:14,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007839186]
[2021-11-13 18:33:14,123 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:14,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:33:14,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:14,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:33:14,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:33:14,125 INFO L87 Difference]: Start difference. First operand 1280 states and 1627 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 18:33:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:16,187 INFO L93 Difference]: Finished difference Result 1790 states and 2346 transitions.
[2021-11-13 18:33:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:16,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14
[2021-11-13 18:33:16,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:16,199 INFO L225 Difference]: With dead ends: 1790
[2021-11-13 18:33:16,199 INFO L226 Difference]: Without dead ends: 1790
[2021-11-13 18:33:16,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 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 18:33:16,201 INFO L933 BasicCegarLoop]: 1056 mSDtfsCounter, 356 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1711.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3995 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.26ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1989.81ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:16,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 3995 Invalid, 415 Unknown, 0 Unchecked, 9.26ms Time], IncrementalHoareTripleChecker [2 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1989.81ms Time]
[2021-11-13 18:33:16,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states.
[2021-11-13 18:33:16,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1280.
[2021-11-13 18:33:16,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 798 states have (on average 1.9761904761904763) internal successors, (1577), 1265 states have internal predecessors, (1577), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1626 transitions.
[2021-11-13 18:33:16,254 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1626 transitions. Word has length 14
[2021-11-13 18:33:16,254 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:16,254 INFO L470 AbstractCegarLoop]: Abstraction has 1280 states and 1626 transitions.
[2021-11-13 18:33:16,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 18:33:16,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1626 transitions.
[2021-11-13 18:33:16,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2021-11-13 18:33:16,255 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:16,255 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 18:33:16,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0
[2021-11-13 18:33:16,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:16,468 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr14REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:16,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:16,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1725470958, now seen corresponding path program 1 times
[2021-11-13 18:33:16,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:16,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223752332]
[2021-11-13 18:33:16,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:16,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:16,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:16,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:16,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-11-13 18:33:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:16,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:33:16,682 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:16,729 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 18:33:16,729 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:16,777 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 18:33:16,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:16,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223752332]
[2021-11-13 18:33:16,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223752332] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:16,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:16,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:33:16,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349398764]
[2021-11-13 18:33:16,778 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:16,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:33:16,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:16,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:33:16,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:33:16,779 INFO L87 Difference]: Start difference. First operand 1280 states and 1626 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 18:33:16,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:16,829 INFO L93 Difference]: Finished difference Result 1247 states and 1592 transitions.
[2021-11-13 18:33:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:33:16,830 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 18:33:16,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:16,837 INFO L225 Difference]: With dead ends: 1247
[2021-11-13 18:33:16,837 INFO L226 Difference]: Without dead ends: 1247
[2021-11-13 18:33:16,837 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 18:33:16,844 INFO L933 BasicCegarLoop]: 1058 mSDtfsCounter, 1932 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.26ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.25ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:16,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1937 Valid, 1155 Invalid, 17 Unknown, 0 Unchecked, 6.26ms Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 25.25ms Time]
[2021-11-13 18:33:16,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states.
[2021-11-13 18:33:16,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1238.
[2021-11-13 18:33:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 780 states have (on average 1.9666666666666666) internal successors, (1534), 1223 states have internal predecessors, (1534), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:16,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1583 transitions.
[2021-11-13 18:33:16,880 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1583 transitions. Word has length 22
[2021-11-13 18:33:16,880 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:16,880 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1583 transitions.
[2021-11-13 18:33:16,880 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 18:33:16,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1583 transitions.
[2021-11-13 18:33:16,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-11-13 18:33:16,881 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:16,882 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 18:33:16,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:17,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:17,094 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr38REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:17,095 INFO L85 PathProgramCache]: Analyzing trace with hash -320213556, now seen corresponding path program 1 times
[2021-11-13 18:33:17,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:17,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646274535]
[2021-11-13 18:33:17,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:17,095 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:17,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:17,097 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:17,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2021-11-13 18:33:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:17,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:17,323 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:17,383 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 18:33:17,383 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:17,441 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 18:33:17,441 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:17,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646274535]
[2021-11-13 18:33:17,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646274535] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:17,442 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:17,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2021-11-13 18:33:17,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863407505]
[2021-11-13 18:33:17,442 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:17,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:33:17,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:17,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:33:17,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:33:17,444 INFO L87 Difference]: Start difference. First operand 1238 states and 1583 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 18:33:17,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:17,537 INFO L93 Difference]: Finished difference Result 1226 states and 1564 transitions.
[2021-11-13 18:33:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:17,538 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 18:33:17,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:17,545 INFO L225 Difference]: With dead ends: 1226
[2021-11-13 18:33:17,545 INFO L226 Difference]: Without dead ends: 1226
[2021-11-13 18:33:17,545 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 18:33:17,546 INFO L933 BasicCegarLoop]: 1013 mSDtfsCounter, 1864 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.41ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.07ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:17,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1869 Valid, 2117 Invalid, 79 Unknown, 0 Unchecked, 5.41ms Time], IncrementalHoareTripleChecker [47 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 58.07ms Time]
[2021-11-13 18:33:17,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states.
[2021-11-13 18:33:17,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1216.
[2021-11-13 18:33:17,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 772 states have (on average 1.9494818652849741) internal successors, (1505), 1201 states have internal predecessors, (1505), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:17,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1554 transitions.
[2021-11-13 18:33:17,580 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1554 transitions. Word has length 24
[2021-11-13 18:33:17,581 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:17,581 INFO L470 AbstractCegarLoop]: Abstraction has 1216 states and 1554 transitions.
[2021-11-13 18:33:17,581 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 18:33:17,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1554 transitions.
[2021-11-13 18:33:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2021-11-13 18:33:17,583 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:17,583 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 18:33:17,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:17,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:17,800 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr52REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:17,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:17,801 INFO L85 PathProgramCache]: Analyzing trace with hash 44817114, now seen corresponding path program 1 times
[2021-11-13 18:33:17,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:17,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087657650]
[2021-11-13 18:33:17,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:17,802 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:17,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:17,803 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:17,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2021-11-13 18:33:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:18,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:18,030 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:18,055 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 18:33:18,190 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 18:33:18,191 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:18,326 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 18:33:18,326 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:18,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087657650]
[2021-11-13 18:33:18,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087657650] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:18,327 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:18,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 18:33:18,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037480844]
[2021-11-13 18:33:18,327 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:18,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:33:18,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:18,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:33:18,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:33:18,328 INFO L87 Difference]: Start difference. First operand 1216 states and 1554 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 18:33:20,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:20,417 INFO L93 Difference]: Finished difference Result 1806 states and 2377 transitions.
[2021-11-13 18:33:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:20,418 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 18:33:20,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:20,428 INFO L225 Difference]: With dead ends: 1806
[2021-11-13 18:33:20,428 INFO L226 Difference]: Without dead ends: 1806
[2021-11-13 18:33:20,428 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 18:33:20,429 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 2108 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1711.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.61ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2039.26ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:20,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2110 Valid, 1011 Invalid, 786 Unknown, 0 Unchecked, 8.61ms Time], IncrementalHoareTripleChecker [23 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 2039.26ms Time]
[2021-11-13 18:33:20,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states.
[2021-11-13 18:33:20,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1212.
[2021-11-13 18:33:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 772 states have (on average 1.944300518134715) internal successors, (1501), 1197 states have internal predecessors, (1501), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1550 transitions.
[2021-11-13 18:33:20,466 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1550 transitions. Word has length 38
[2021-11-13 18:33:20,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:20,466 INFO L470 AbstractCegarLoop]: Abstraction has 1212 states and 1550 transitions.
[2021-11-13 18:33:20,466 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 18:33:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1550 transitions.
[2021-11-13 18:33:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2021-11-13 18:33:20,468 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:20,468 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 18:33:20,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0
[2021-11-13 18:33:20,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:20,680 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr53REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:20,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:20,680 INFO L85 PathProgramCache]: Analyzing trace with hash 44817115, now seen corresponding path program 1 times
[2021-11-13 18:33:20,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:20,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234629084]
[2021-11-13 18:33:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:20,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:20,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:20,683 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:20,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2021-11-13 18:33:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:20,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:33:20,893 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:20,918 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 18:33:21,184 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 18:33:21,185 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:21,694 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 18:33:21,694 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:21,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234629084]
[2021-11-13 18:33:21,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234629084] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:21,695 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:21,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:33:21,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930351575]
[2021-11-13 18:33:21,696 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:21,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:33:21,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:21,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:33:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:33:21,698 INFO L87 Difference]: Start difference. First operand 1212 states and 1550 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 18:33:28,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:28,604 INFO L93 Difference]: Finished difference Result 1453 states and 1568 transitions.
[2021-11-13 18:33:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:33:28,606 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 18:33:28,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:28,612 INFO L225 Difference]: With dead ends: 1453
[2021-11-13 18:33:28,613 INFO L226 Difference]: Without dead ends: 1453
[2021-11-13 18:33:28,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:33:28,614 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1848 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5967.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.27ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6780.43ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:28,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1848 Valid, 2183 Invalid, 1590 Unknown, 0 Unchecked, 12.27ms Time], IncrementalHoareTripleChecker [17 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 6780.43ms Time]
[2021-11-13 18:33:28,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states.
[2021-11-13 18:33:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1208.
[2021-11-13 18:33:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 772 states have (on average 1.939119170984456) internal successors, (1497), 1193 states have internal predecessors, (1497), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1546 transitions.
[2021-11-13 18:33:28,645 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1546 transitions. Word has length 38
[2021-11-13 18:33:28,646 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:28,646 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1546 transitions.
[2021-11-13 18:33:28,646 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 18:33:28,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1546 transitions.
[2021-11-13 18:33:28,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2021-11-13 18:33:28,648 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:28,648 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]
[2021-11-13 18:33:28,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:28,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:28,861 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr117REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:28,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1384262345, now seen corresponding path program 1 times
[2021-11-13 18:33:28,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:28,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667556135]
[2021-11-13 18:33:28,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:28,862 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:28,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:28,863 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:28,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2021-11-13 18:33:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:29,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:29,117 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:29,254 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 18:33:29,254 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:29,381 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 18:33:29,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:29,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667556135]
[2021-11-13 18:33:29,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667556135] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:29,382 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:29,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:33:29,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110392578]
[2021-11-13 18:33:29,383 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:29,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:33:29,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:29,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:33:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:33:29,385 INFO L87 Difference]: Start difference. First operand 1208 states and 1546 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:33:29,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:29,452 INFO L93 Difference]: Finished difference Result 1211 states and 1545 transitions.
[2021-11-13 18:33:29,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:29,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53
[2021-11-13 18:33:29,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:29,459 INFO L225 Difference]: With dead ends: 1211
[2021-11-13 18:33:29,459 INFO L226 Difference]: Without dead ends: 1211
[2021-11-13 18:33:29,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 18:33:29,461 INFO L933 BasicCegarLoop]: 1007 mSDtfsCounter, 913 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.14ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.25ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:29,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2095 Invalid, 41 Unknown, 0 Unchecked, 7.14ms Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 39.25ms Time]
[2021-11-13 18:33:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states.
[2021-11-13 18:33:29,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1202.
[2021-11-13 18:33:29,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 766 states have (on average 1.941253263707572) internal successors, (1487), 1187 states have internal predecessors, (1487), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1536 transitions.
[2021-11-13 18:33:29,495 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1536 transitions. Word has length 53
[2021-11-13 18:33:29,497 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:29,497 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 1536 transitions.
[2021-11-13 18:33:29,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:33:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1536 transitions.
[2021-11-13 18:33:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2021-11-13 18:33:29,501 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:29,502 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]
[2021-11-13 18:33:29,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:29,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:29,719 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr117REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:29,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1870144277, now seen corresponding path program 1 times
[2021-11-13 18:33:29,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:29,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493244426]
[2021-11-13 18:33:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:29,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:29,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:29,721 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:29,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2021-11-13 18:33:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:29,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:29,951 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:30,399 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 18:33:30,399 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:30,814 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 18:33:30,814 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:30,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493244426]
[2021-11-13 18:33:30,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493244426] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:30,815 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:30,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 18:33:30,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397189556]
[2021-11-13 18:33:30,815 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:30,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:33:30,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:30,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:33:30,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:33:30,816 INFO L87 Difference]: Start difference. First operand 1202 states and 1536 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 18:33:31,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:31,101 INFO L93 Difference]: Finished difference Result 1742 states and 2271 transitions.
[2021-11-13 18:33:31,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:33:31,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 61
[2021-11-13 18:33:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:31,112 INFO L225 Difference]: With dead ends: 1742
[2021-11-13 18:33:31,112 INFO L226 Difference]: Without dead ends: 1742
[2021-11-13 18:33:31,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 18:33:31,113 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 407 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 223.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.54ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 265.54ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:31,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 2085 Invalid, 110 Unknown, 0 Unchecked, 3.54ms Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 265.54ms Time]
[2021-11-13 18:33:31,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states.
[2021-11-13 18:33:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1563.
[2021-11-13 18:33:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1125 states have (on average 1.9244444444444444) internal successors, (2165), 1546 states have internal predecessors, (2165), 27 states have call successors, (27), 5 states have call predecessors, (27), 4 states have return successors, (26), 12 states have call predecessors, (26), 26 states have call successors, (26)
[2021-11-13 18:33:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2218 transitions.
[2021-11-13 18:33:31,151 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2218 transitions. Word has length 61
[2021-11-13 18:33:31,151 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:31,151 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2218 transitions.
[2021-11-13 18:33:31,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 18:33:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2218 transitions.
[2021-11-13 18:33:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2021-11-13 18:33:31,153 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:31,153 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 18:33:31,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:31,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:31,366 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr71REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:31,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:31,367 INFO L85 PathProgramCache]: Analyzing trace with hash 740278757, now seen corresponding path program 1 times
[2021-11-13 18:33:31,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:31,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396299755]
[2021-11-13 18:33:31,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:31,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:31,368 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:31,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2021-11-13 18:33:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:31,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:33:31,705 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:31,734 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 18:33:31,742 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 18:33:32,467 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2021-11-13 18:33:32,468 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 18:33:32,475 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2021-11-13 18:33:32,475 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 18:33:32,506 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 18:33:32,506 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:37,684 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 18:33:37,685 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:37,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396299755]
[2021-11-13 18:33:37,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396299755] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:37,685 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:37,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:33:37,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235374636]
[2021-11-13 18:33:37,686 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:37,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:33:37,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:37,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:33:37,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30
[2021-11-13 18:33:37,687 INFO L87 Difference]: Start difference. First operand 1563 states and 2218 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 18:33:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:43,757 INFO L93 Difference]: Finished difference Result 2168 states and 2916 transitions.
[2021-11-13 18:33:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:33:43,759 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 18:33:43,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:43,771 INFO L225 Difference]: With dead ends: 2168
[2021-11-13 18:33:43,771 INFO L226 Difference]: Without dead ends: 2168
[2021-11-13 18:33:43,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42
[2021-11-13 18:33:43,772 INFO L933 BasicCegarLoop]: 692 mSDtfsCounter, 1500 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5096.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.45ms SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1083 IncrementalHoareTripleChecker+Unchecked, 5966.58ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:43,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 1625 Invalid, 2548 Unknown, 0 Unchecked, 18.45ms Time], IncrementalHoareTripleChecker [57 Valid, 1408 Invalid, 0 Unknown, 1083 Unchecked, 5966.58ms Time]
[2021-11-13 18:33:43,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states.
[2021-11-13 18:33:43,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 1175.
[2021-11-13 18:33:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 773 states have (on average 1.8253557567917205) internal successors, (1411), 1160 states have internal predecessors, (1411), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:43,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1460 transitions.
[2021-11-13 18:33:43,805 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1460 transitions. Word has length 64
[2021-11-13 18:33:43,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:43,816 INFO L470 AbstractCegarLoop]: Abstraction has 1175 states and 1460 transitions.
[2021-11-13 18:33:43,816 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 18:33:43,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1460 transitions.
[2021-11-13 18:33:43,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2021-11-13 18:33:43,817 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:43,817 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 18:33:43,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:44,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:44,032 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr73REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:44,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1556673562, now seen corresponding path program 1 times
[2021-11-13 18:33:44,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:44,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12972493]
[2021-11-13 18:33:44,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:44,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:44,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:44,034 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:44,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2021-11-13 18:33:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:44,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:44,277 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:44,560 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 18:33:44,561 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:44,625 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 18:33:44,941 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 18:33:44,941 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:44,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12972493]
[2021-11-13 18:33:44,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12972493] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:44,941 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:44,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:33:44,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627052177]
[2021-11-13 18:33:44,941 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:44,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:33:44,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:44,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:33:44,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:33:44,943 INFO L87 Difference]: Start difference. First operand 1175 states and 1460 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 18:33:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:46,994 INFO L93 Difference]: Finished difference Result 1173 states and 1458 transitions.
[2021-11-13 18:33:46,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:46,996 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 18:33:46,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:47,001 INFO L225 Difference]: With dead ends: 1173
[2021-11-13 18:33:47,001 INFO L226 Difference]: Without dead ends: 1173
[2021-11-13 18:33:47,001 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 18:33:47,002 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 2550 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1697.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2555 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.45ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2011.36ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:47,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2555 Valid, 807 Invalid, 466 Unknown, 0 Unchecked, 8.45ms Time], IncrementalHoareTripleChecker [24 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 2011.36ms Time]
[2021-11-13 18:33:47,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states.
[2021-11-13 18:33:47,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1173.
[2021-11-13 18:33:47,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 773 states have (on average 1.8227684346701165) internal successors, (1409), 1158 states have internal predecessors, (1409), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1458 transitions.
[2021-11-13 18:33:47,024 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1458 transitions. Word has length 66
[2021-11-13 18:33:47,024 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:47,025 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1458 transitions.
[2021-11-13 18:33:47,025 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 18:33:47,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1458 transitions.
[2021-11-13 18:33:47,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2021-11-13 18:33:47,026 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:47,026 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 18:33:47,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:47,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:47,239 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr76REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:47,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:47,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2099807298, now seen corresponding path program 1 times
[2021-11-13 18:33:47,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:47,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253847306]
[2021-11-13 18:33:47,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:47,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:47,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:47,242 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:47,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2021-11-13 18:33:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:47,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:33:47,521 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:47,626 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 18:33:47,639 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 18:33:47,681 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 18:33:47,693 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 18:33:47,693 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:47,800 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 18:33:47,800 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:47,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253847306]
[2021-11-13 18:33:47,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253847306] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:47,800 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:47,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:33:47,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382135571]
[2021-11-13 18:33:47,801 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:47,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:33:47,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:33:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:33:47,801 INFO L87 Difference]: Start difference. First operand 1173 states and 1458 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 18:33:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:50,447 INFO L93 Difference]: Finished difference Result 1172 states and 1457 transitions.
[2021-11-13 18:33:50,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:33:50,448 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 18:33:50,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:50,454 INFO L225 Difference]: With dead ends: 1172
[2021-11-13 18:33:50,454 INFO L226 Difference]: Without dead ends: 1172
[2021-11-13 18:33:50,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:33:50,455 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 4 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2234.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.74ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2591.22ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:50,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2568 Invalid, 1314 Unknown, 0 Unchecked, 7.74ms Time], IncrementalHoareTripleChecker [1 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 2591.22ms Time]
[2021-11-13 18:33:50,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states.
[2021-11-13 18:33:50,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1172.
[2021-11-13 18:33:50,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 773 states have (on average 1.8214747736093144) internal successors, (1408), 1157 states have internal predecessors, (1408), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:33:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1457 transitions.
[2021-11-13 18:33:50,480 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1457 transitions. Word has length 69
[2021-11-13 18:33:50,481 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:50,481 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1457 transitions.
[2021-11-13 18:33:50,481 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 18:33:50,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1457 transitions.
[2021-11-13 18:33:50,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2021-11-13 18:33:50,482 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:50,482 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 18:33:50,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0
[2021-11-13 18:33:50,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:50,702 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr77REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:33:50,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:50,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2099807297, now seen corresponding path program 1 times
[2021-11-13 18:33:50,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:50,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174354863]
[2021-11-13 18:33:50,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:50,704 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:50,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:50,705 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:50,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2021-11-13 18:33:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:51,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:33:51,010 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:51,110 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 18:33:51,132 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 18:33:51,156 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 18:33:51,219 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 18:33:51,223 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 18:33:51,243 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 18:33:51,243 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:51,558 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 18:33:51,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:51,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174354863]
[2021-11-13 18:33:51,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174354863] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:51,558 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:51,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-11-13 18:33:51,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454716650]
[2021-11-13 18:33:51,559 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:51,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-13 18:33:51,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:51,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-13 18:33:51,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:33:51,560 INFO L87 Difference]: Start difference. First operand 1172 states and 1457 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 18:34:00,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:00,450 INFO L93 Difference]: Finished difference Result 1171 states and 1456 transitions.
[2021-11-13 18:34:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:34:00,452 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 18:34:00,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:00,457 INFO L225 Difference]: With dead ends: 1171
[2021-11-13 18:34:00,458 INFO L226 Difference]: Without dead ends: 1171
[2021-11-13 18:34:00,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:34:00,459 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 3 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7859.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3683 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.97ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8794.82ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:00,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3683 Invalid, 2134 Unknown, 0 Unchecked, 13.97ms Time], IncrementalHoareTripleChecker [1 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 8794.82ms Time]
[2021-11-13 18:34:00,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states.
[2021-11-13 18:34:00,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1171.
[2021-11-13 18:34:00,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 772 states have (on average 1.822538860103627) internal successors, (1407), 1156 states have internal predecessors, (1407), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 10 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-13 18:34:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1456 transitions.
[2021-11-13 18:34:00,483 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1456 transitions. Word has length 69
[2021-11-13 18:34:00,483 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:00,483 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1456 transitions.
[2021-11-13 18:34:00,483 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 18:34:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1456 transitions.
[2021-11-13 18:34:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2021-11-13 18:34:00,484 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:00,485 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 18:34:00,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:00,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:00,698 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:34:00,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:00,699 INFO L85 PathProgramCache]: Analyzing trace with hash 178416389, now seen corresponding path program 1 times
[2021-11-13 18:34:00,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:00,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074508996]
[2021-11-13 18:34:00,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:34:00,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:00,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:00,701 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:00,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2021-11-13 18:34:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:34:00,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:34:00,998 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:01,131 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 18:34:01,131 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:34:01,293 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 18:34:01,294 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:34:01,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074508996]
[2021-11-13 18:34:01,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074508996] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:34:01,294 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:34:01,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-13 18:34:01,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852511483]
[2021-11-13 18:34:01,294 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:34:01,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:34:01,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:34:01,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:34:01,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:34:01,295 INFO L87 Difference]: Start difference. First operand 1171 states and 1456 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 18:34:01,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:01,406 INFO L93 Difference]: Finished difference Result 1181 states and 1469 transitions.
[2021-11-13 18:34:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:34:01,407 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 18:34:01,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:01,415 INFO L225 Difference]: With dead ends: 1181
[2021-11-13 18:34:01,415 INFO L226 Difference]: Without dead ends: 1181
[2021-11-13 18:34:01,416 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 18:34:01,416 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 9 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2902 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.17ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.96ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:01,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 2902 Invalid, 34 Unknown, 0 Unchecked, 3.17ms Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 75.96ms Time]
[2021-11-13 18:34:01,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states.
[2021-11-13 18:34:01,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181.
[2021-11-13 18:34:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 780 states have (on average 1.8192307692307692) internal successors, (1419), 1165 states have internal predecessors, (1419), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 10 states have call predecessors, (25), 24 states have call successors, (25)
[2021-11-13 18:34:01,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1469 transitions.
[2021-11-13 18:34:01,443 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1469 transitions. Word has length 77
[2021-11-13 18:34:01,443 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:01,443 INFO L470 AbstractCegarLoop]: Abstraction has 1181 states and 1469 transitions.
[2021-11-13 18:34:01,443 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 18:34:01,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1469 transitions.
[2021-11-13 18:34:01,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2021-11-13 18:34:01,444 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:01,445 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 18:34:01,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:01,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:01,662 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:34:01,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:01,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1398946491, now seen corresponding path program 1 times
[2021-11-13 18:34:01,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:01,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996618641]
[2021-11-13 18:34:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:34:01,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:01,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:01,665 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:01,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2021-11-13 18:34:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:34:01,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:34:01,976 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:02,119 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 18:34:02,120 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:34:02,359 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 18:34:02,359 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:34:02,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996618641]
[2021-11-13 18:34:02,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996618641] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:34:02,360 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:34:02,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2021-11-13 18:34:02,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933497224]
[2021-11-13 18:34:02,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:34:02,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 18:34:02,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:34:02,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 18:34:02,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:34:02,362 INFO L87 Difference]: Start difference. First operand 1181 states and 1469 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 18:34:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:02,760 INFO L93 Difference]: Finished difference Result 1195 states and 1487 transitions.
[2021-11-13 18:34:02,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-11-13 18:34:02,762 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 18:34:02,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:02,769 INFO L225 Difference]: With dead ends: 1195
[2021-11-13 18:34:02,769 INFO L226 Difference]: Without dead ends: 1191
[2021-11-13 18:34:02,770 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 18:34:02,771 INFO L933 BasicCegarLoop]: 971 mSDtfsCounter, 24 mSDsluCounter, 5795 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 176.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 6766 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.43ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.75ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:02,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 6766 Invalid, 125 Unknown, 0 Unchecked, 5.43ms Time], IncrementalHoareTripleChecker [23 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 202.75ms Time]
[2021-11-13 18:34:02,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states.
[2021-11-13 18:34:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1187.
[2021-11-13 18:34:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 786 states have (on average 1.8155216284987277) internal successors, (1427), 1171 states have internal predecessors, (1427), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 10 states have call predecessors, (25), 24 states have call successors, (25)
[2021-11-13 18:34:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1477 transitions.
[2021-11-13 18:34:02,799 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1477 transitions. Word has length 79
[2021-11-13 18:34:02,799 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:02,799 INFO L470 AbstractCegarLoop]: Abstraction has 1187 states and 1477 transitions.
[2021-11-13 18:34:02,800 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 18:34:02,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1477 transitions.
[2021-11-13 18:34:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2021-11-13 18:34:02,801 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:02,801 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 18:34:02,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:03,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:03,016 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:34:03,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:03,016 INFO L85 PathProgramCache]: Analyzing trace with hash -512767547, now seen corresponding path program 2 times
[2021-11-13 18:34:03,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:03,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097117145]
[2021-11-13 18:34:03,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 18:34:03,018 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:03,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:03,019 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:03,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2021-11-13 18:34:03,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-11-13 18:34:03,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:34:03,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-11-13 18:34:03,469 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:03,724 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 18:34:03,724 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:34:04,280 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 18:34:04,280 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:34:04,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097117145]
[2021-11-13 18:34:04,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097117145] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:34:04,281 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:34:04,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2021-11-13 18:34:04,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765350095]
[2021-11-13 18:34:04,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:34:04,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2021-11-13 18:34:04,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:34:04,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-11-13 18:34:04,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306
[2021-11-13 18:34:04,283 INFO L87 Difference]: Start difference. First operand 1187 states and 1477 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 18:34:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:05,780 INFO L93 Difference]: Finished difference Result 1215 states and 1515 transitions.
[2021-11-13 18:34:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states.
[2021-11-13 18:34:05,781 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 18:34:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:05,788 INFO L225 Difference]: With dead ends: 1215
[2021-11-13 18:34:05,793 INFO L226 Difference]: Without dead ends: 1211
[2021-11-13 18:34:05,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=457, Invalid=949, Unknown=0, NotChecked=0, Total=1406
[2021-11-13 18:34:05,795 INFO L933 BasicCegarLoop]: 975 mSDtfsCounter, 84 mSDsluCounter, 6801 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 539.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 7776 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.12ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 617.43ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:05,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 7776 Invalid, 375 Unknown, 0 Unchecked, 9.12ms Time], IncrementalHoareTripleChecker [67 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 617.43ms Time]
[2021-11-13 18:34:05,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states.
[2021-11-13 18:34:05,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1199.
[2021-11-13 18:34:05,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 798 states have (on average 1.8082706766917294) internal successors, (1443), 1183 states have internal predecessors, (1443), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 10 states have call predecessors, (25), 24 states have call successors, (25)
[2021-11-13 18:34:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1493 transitions.
[2021-11-13 18:34:05,828 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1493 transitions. Word has length 83
[2021-11-13 18:34:05,828 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:05,828 INFO L470 AbstractCegarLoop]: Abstraction has 1199 states and 1493 transitions.
[2021-11-13 18:34:05,828 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 18:34:05,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1493 transitions.
[2021-11-13 18:34:05,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2021-11-13 18:34:05,830 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:05,830 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 18:34:05,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:06,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:06,045 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:34:06,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:06,046 INFO L85 PathProgramCache]: Analyzing trace with hash 326177477, now seen corresponding path program 3 times
[2021-11-13 18:34:06,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:06,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225194999]
[2021-11-13 18:34:06,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-11-13 18:34:06,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:06,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:06,047 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:06,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2021-11-13 18:34:06,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s)
[2021-11-13 18:34:06,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:34:06,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 18 conjunts are in the unsatisfiable core
[2021-11-13 18:34:06,882 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:07,298 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 18:34:07,298 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:34:08,990 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 18:34:08,990 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:34:08,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225194999]
[2021-11-13 18:34:08,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225194999] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:34:08,991 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:34:08,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34
[2021-11-13 18:34:08,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454650431]
[2021-11-13 18:34:08,991 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:34:08,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2021-11-13 18:34:08,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:34:08,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2021-11-13 18:34:08,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122
[2021-11-13 18:34:08,994 INFO L87 Difference]: Start difference. First operand 1199 states and 1493 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 18:34:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:17,901 INFO L93 Difference]: Finished difference Result 1255 states and 1577 transitions.
[2021-11-13 18:34:17,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states.
[2021-11-13 18:34:17,902 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 18:34:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:17,908 INFO L225 Difference]: With dead ends: 1255
[2021-11-13 18:34:17,909 INFO L226 Difference]: Without dead ends: 1249
[2021-11-13 18:34:17,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1377, Invalid=2783, Unknown=0, NotChecked=0, Total=4160
[2021-11-13 18:34:17,917 INFO L933 BasicCegarLoop]: 982 mSDtfsCounter, 236 mSDsluCounter, 15632 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2283.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 16614 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.04ms SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2616.75ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:17,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 16614 Invalid, 1407 Unknown, 0 Unchecked, 23.04ms Time], IncrementalHoareTripleChecker [167 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 2616.75ms Time]
[2021-11-13 18:34:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states.
[2021-11-13 18:34:17,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1223.
[2021-11-13 18:34:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 822 states have (on average 1.7931873479318734) internal successors, (1474), 1207 states have internal predecessors, (1474), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 10 states have call predecessors, (25), 24 states have call successors, (25)
[2021-11-13 18:34:17,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1524 transitions.
[2021-11-13 18:34:17,944 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1524 transitions. Word has length 91
[2021-11-13 18:34:17,945 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:17,945 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 1524 transitions.
[2021-11-13 18:34:17,945 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 18:34:17,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1524 transitions.
[2021-11-13 18:34:17,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2021-11-13 18:34:17,948 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:17,948 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 18:34:17,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:18,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:18,164 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:34:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:18,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1201101627, now seen corresponding path program 4 times
[2021-11-13 18:34:18,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:18,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645266789]
[2021-11-13 18:34:18,165 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2021-11-13 18:34:18,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:18,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:18,166 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:18,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2021-11-13 18:34:18,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-11-13 18:34:18,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:34:18,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 33 conjunts are in the unsatisfiable core
[2021-11-13 18:34:18,623 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:19,668 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 18:34:19,668 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:34:23,864 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 18:34:23,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:34:23,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645266789]
[2021-11-13 18:34:23,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645266789] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:34:23,865 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:34:23,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66
[2021-11-13 18:34:23,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116566415]
[2021-11-13 18:34:23,866 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:34:23,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states
[2021-11-13 18:34:23,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:34:23,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants.
[2021-11-13 18:34:23,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290
[2021-11-13 18:34:23,869 INFO L87 Difference]: Start difference. First operand 1223 states and 1524 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 18:34:38,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:38,414 INFO L93 Difference]: Finished difference Result 1315 states and 1644 transitions.
[2021-11-13 18:34:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states.
[2021-11-13 18:34:38,415 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 18:34:38,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:38,420 INFO L225 Difference]: With dead ends: 1315
[2021-11-13 18:34:38,421 INFO L226 Difference]: Without dead ends: 1311
[2021-11-13 18:34:38,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=4503, Invalid=14679, Unknown=0, NotChecked=0, Total=19182
[2021-11-13 18:34:38,429 INFO L933 BasicCegarLoop]: 998 mSDtfsCounter, 278 mSDsluCounter, 31783 mSDsCounter, 0 mSdLazyCounter, 4041 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6789.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 32781 SdHoareTripleChecker+Invalid, 4552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.27ms SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 4041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7776.77ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:38,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 32781 Invalid, 4552 Unknown, 0 Unchecked, 50.27ms Time], IncrementalHoareTripleChecker [511 Valid, 4041 Invalid, 0 Unknown, 0 Unchecked, 7776.77ms Time]
[2021-11-13 18:34:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states.
[2021-11-13 18:34:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1253.
[2021-11-13 18:34:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 852 states have (on average 1.784037558685446) internal successors, (1520), 1237 states have internal predecessors, (1520), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 10 states have call predecessors, (25), 24 states have call successors, (25)
[2021-11-13 18:34:38,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1570 transitions.
[2021-11-13 18:34:38,463 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1570 transitions. Word has length 107
[2021-11-13 18:34:38,464 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:38,464 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 1570 transitions.
[2021-11-13 18:34:38,464 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 18:34:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1570 transitions.
[2021-11-13 18:34:38,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122
[2021-11-13 18:34:38,466 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:38,466 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 18:34:38,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:38,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:38,680 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr80REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 532 more)] ===
[2021-11-13 18:34:38,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:38,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1844395141, now seen corresponding path program 5 times
[2021-11-13 18:34:38,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:38,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262203058]
[2021-11-13 18:34:38,681 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2021-11-13 18:34:38,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:38,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:38,682 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:38,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b14f54-5f19-4a75-9a51-6715872ff9a1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2021-11-13 18:34:39,796 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s)
[2021-11-13 18:34:39,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:34:39,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 54 conjunts are in the unsatisfiable core
[2021-11-13 18:34:39,834 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:39,862 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 18:34:40,090 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size
[2021-11-13 18:34:40,091 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 20 treesize of output 27
[2021-11-13 18:34:40,132 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 18:34:40,291 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