./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.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_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/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_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/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_af92e43a-bc4e-43f3-9162-a75d02345cc8/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 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:31:00,411 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:31:00,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:31:00,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:31:00,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:31:00,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:31:00,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:31:00,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:31:00,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:31:00,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:31:00,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:31:00,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:31:00,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:31:00,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:31:00,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:31:00,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:31:00,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:31:00,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:31:00,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:31:00,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:31:00,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:31:00,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:31:00,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:31:00,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:31:00,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:31:00,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:31:00,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:31:00,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:31:00,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:31:00,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:31:00,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:31:00,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:31:00,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:31:00,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:31:00,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:31:00,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:31:00,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:31:00,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:31:00,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:31:00,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:31:00,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:31:00,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2021-11-13 18:31:00,627 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:31:00,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:31:00,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:31:00,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:31:00,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:31:00,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:31:00,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:31:00,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:31:00,633 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:31:00,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:31:00,634 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:31:00,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-11-13 18:31:00,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:31:00,635 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:31:00,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:31:00,635 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-11-13 18:31:00,635 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-11-13 18:31:00,635 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-11-13 18:31:00,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:31:00,636 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-11-13 18:31:00,636 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:31:00,636 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:31:00,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:31:00,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:31:00,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:31:00,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:31:00,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:31:00,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:31:00,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:31:00,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 18:31:00,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:31:00,639 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_af92e43a-bc4e-43f3-9162-a75d02345cc8/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0
[2021-11-13 18:31:00,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:31:00,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:31:00,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:31:00,941 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:31:00,942 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:31:00,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i
[2021-11-13 18:31:01,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data/f9adb860f/8a0147f8d6824849befd4c3996db6f14/FLAG3473eff68
[2021-11-13 18:31:01,768 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:31:01,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i
[2021-11-13 18:31:01,811 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data/f9adb860f/8a0147f8d6824849befd4c3996db6f14/FLAG3473eff68
[2021-11-13 18:31:01,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data/f9adb860f/8a0147f8d6824849befd4c3996db6f14
[2021-11-13 18:31:01,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:31:01,909 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-11-13 18:31:01,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:31:01,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:31:01,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:31:01,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:31:01" (1/1) ...
[2021-11-13 18:31:01,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58632603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:01, skipping insertion in model container
[2021-11-13 18:31:01,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:31:01" (1/1) ...
[2021-11-13 18:31:01,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:31:01,999 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:31:02,540 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_af92e43a-bc4e-43f3-9162-a75d02345cc8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i[33022,33035]
[2021-11-13 18:31:02,889 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:31:02,907 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 18:31:02,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54584bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:02, skipping insertion in model container
[2021-11-13 18:31:02,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:31:02,908 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor
[2021-11-13 18:31:02,911 INFO L158 Benchmark]: Toolchain (without parser) took 1000.13ms. Allocated memory is still 98.6MB. Free memory was 61.7MB in the beginning and 54.0MB in the end (delta: 7.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-11-13 18:31:02,915 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 98.6MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:31:02,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 996.60ms. Allocated memory is still 98.6MB. Free memory was 61.5MB in the beginning and 54.0MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 18:31:02,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.25ms. Allocated memory is still 98.6MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 996.60ms. Allocated memory is still 98.6MB. Free memory was 61.5MB in the beginning and 54.0MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 734]: Unsupported Syntax
Found a cast between two array/pointer types 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_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/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_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/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_af92e43a-bc4e-43f3-9162-a75d02345cc8/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 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:31:05,533 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:31:05,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:31:05,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:31:05,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:31:05,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:31:05,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:31:05,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:31:05,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:31:05,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:31:05,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:31:05,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:31:05,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:31:05,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:31:05,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:31:05,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:31:05,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:31:05,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:31:05,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:31:05,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:31:05,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:31:05,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:31:05,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:31:05,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:31:05,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:31:05,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:31:05,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:31:05,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:31:05,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:31:05,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:31:05,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:31:05,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:31:05,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:31:05,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:31:05,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:31:05,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:31:05,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:31:05,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:31:05,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:31:05,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:31:05,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:31:05,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2021-11-13 18:31:05,751 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:31:05,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:31:05,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:31:05,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:31:05,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:31:05,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:31:05,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:31:05,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:31:05,755 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:31:05,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:31:05,756 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:31:05,756 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-11-13 18:31:05,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:31:05,757 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:31:05,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:31:05,757 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-11-13 18:31:05,757 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-11-13 18:31:05,758 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-11-13 18:31:05,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:31:05,758 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-11-13 18:31:05,758 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 18:31:05,759 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 18:31:05,759 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:31:05,759 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:31:05,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:31:05,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:31:05,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:31:05,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:31:05,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:31:05,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:31:05,762 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 18:31:05,762 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 18:31:05,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:31:05,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 18:31:05,763 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_af92e43a-bc4e-43f3-9162-a75d02345cc8/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0
[2021-11-13 18:31:06,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:31:06,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:31:06,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:31:06,241 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:31:06,241 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:31:06,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i
[2021-11-13 18:31:06,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data/295d0eb5f/b1d4b279ca33421182a8cdb3fa61e970/FLAG0cda1b9e1
[2021-11-13 18:31:07,164 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:31:07,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i
[2021-11-13 18:31:07,194 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data/295d0eb5f/b1d4b279ca33421182a8cdb3fa61e970/FLAG0cda1b9e1
[2021-11-13 18:31:07,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/data/295d0eb5f/b1d4b279ca33421182a8cdb3fa61e970
[2021-11-13 18:31:07,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:31:07,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-11-13 18:31:07,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:31:07,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:31:07,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:31:07,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:31:07" (1/1) ...
[2021-11-13 18:31:07,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee90925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:07, skipping insertion in model container
[2021-11-13 18:31:07,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:31:07" (1/1) ...
[2021-11-13 18:31:07,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:31:07,411 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:31:07,940 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_af92e43a-bc4e-43f3-9162-a75d02345cc8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i[33022,33035]
[2021-11-13 18:31:08,242 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:31:08,262 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2021-11-13 18:31:08,294 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:31:08,331 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_af92e43a-bc4e-43f3-9162-a75d02345cc8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i[33022,33035]
[2021-11-13 18:31:08,500 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:31:08,510 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:31:08,554 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_af92e43a-bc4e-43f3-9162-a75d02345cc8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i[33022,33035]
[2021-11-13 18:31:08,667 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:31:08,707 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:31:08,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08 WrapperNode
[2021-11-13 18:31:08,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:31:08,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:31:08,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:31:08,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:31:08,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (1/1) ...
[2021-11-13 18:31:08,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (1/1) ...
[2021-11-13 18:31:08,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (1/1) ...
[2021-11-13 18:31:08,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (1/1) ...
[2021-11-13 18:31:08,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (1/1) ...
[2021-11-13 18:31:08,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (1/1) ...
[2021-11-13 18:31:09,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (1/1) ...
[2021-11-13 18:31:09,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:31:09,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:31:09,032 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:31:09,032 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:31:09,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (1/1) ...
[2021-11-13 18:31:09,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:31:09,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:31:09,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:09,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:31:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-11-13 18:31:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:31:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode
[2021-11-13 18:31:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32
[2021-11-13 18:31:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64
[2021-11-13 18:31:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2021-11-13 18:31:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2021-11-13 18:31:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2021-11-13 18:31:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-11-13 18:31:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-11-13 18:31:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int
[2021-11-13 18:31:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-11-13 18:31:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2021-11-13 18:31:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy
[2021-11-13 18:31:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure memmove
[2021-11-13 18:31:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy
[2021-11-13 18:31:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure memset
[2021-11-13 18:31:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp
[2021-11-13 18:31:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure memchr
[2021-11-13 18:31:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy
[2021-11-13 18:31:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy
[2021-11-13 18:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure strcat
[2021-11-13 18:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure strncat
[2021-11-13 18:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp
[2021-11-13 18:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp
[2021-11-13 18:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll
[2021-11-13 18:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm
[2021-11-13 18:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l
[2021-11-13 18:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l
[2021-11-13 18:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure strdup
[2021-11-13 18:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure strndup
[2021-11-13 18:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure strchr
[2021-11-13 18:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr
[2021-11-13 18:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn
[2021-11-13 18:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure strspn
[2021-11-13 18:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk
[2021-11-13 18:31:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure strstr
[2021-11-13 18:31:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure strtok
[2021-11-13 18:31:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r
[2021-11-13 18:31:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r
[2021-11-13 18:31:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure strlen
[2021-11-13 18:31:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen
[2021-11-13 18:31:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure strerror
[2021-11-13 18:31:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r
[2021-11-13 18:31:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l
[2021-11-13 18:31:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp
[2021-11-13 18:31:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy
[2021-11-13 18:31:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure bzero
[2021-11-13 18:31:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure index
[2021-11-13 18:31:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure rindex
[2021-11-13 18:31:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure ffs
[2021-11-13 18:31:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl
[2021-11-13 18:31:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll
[2021-11-13 18:31:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp
[2021-11-13 18:31:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp
[2021-11-13 18:31:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l
[2021-11-13 18:31:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l
[2021-11-13 18:31:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero
[2021-11-13 18:31:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure strsep
[2021-11-13 18:31:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal
[2021-11-13 18:31:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy
[2021-11-13 18:31:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy
[2021-11-13 18:31:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy
[2021-11-13 18:31:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy
[2021-11-13 18:31:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2021-11-13 18:31:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2021-11-13 18:31:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2021-11-13 18:31:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2021-11-13 18:31:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2021-11-13 18:31:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2021-11-13 18:31:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2021-11-13 18:31:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2021-11-13 18:31:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2021-11-13 18:31:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2021-11-13 18:31:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2021-11-13 18:31:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2021-11-13 18:31:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2021-11-13 18:31:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2021-11-13 18:31:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2021-11-13 18:31:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2021-11-13 18:31:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32
[2021-11-13 18:31:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64
[2021-11-13 18:31:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity
[2021-11-13 18:31:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity
[2021-11-13 18:31:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity
[2021-11-13 18:31:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2021-11-13 18:31:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2021-11-13 18:31:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2021-11-13 18:31:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2021-11-13 18:31:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2021-11-13 18:31:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2021-11-13 18:31:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2021-11-13 18:31:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2021-11-13 18:31:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2021-11-13 18:31:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2021-11-13 18:31:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2021-11-13 18:31:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2021-11-13 18:31:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2021-11-13 18:31:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2021-11-13 18:31:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2021-11-13 18:31:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2021-11-13 18:31:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2021-11-13 18:31:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2021-11-13 18:31:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2021-11-13 18:31:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2021-11-13 18:31:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2021-11-13 18:31:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2021-11-13 18:31:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2021-11-13 18:31:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2021-11-13 18:31:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2021-11-13 18:31:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2021-11-13 18:31:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2021-11-13 18:31:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2021-11-13 18:31:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2021-11-13 18:31:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2021-11-13 18:31:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2021-11-13 18:31:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2021-11-13 18:31:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2021-11-13 18:31:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2021-11-13 18:31:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2021-11-13 18:31:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2021-11-13 18:31:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2021-11-13 18:31:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2021-11-13 18:31:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2021-11-13 18:31:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2021-11-13 18:31:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2021-11-13 18:31:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2021-11-13 18:31:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-11-13 18:31:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2021-11-13 18:31:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2021-11-13 18:31:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2021-11-13 18:31:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2021-11-13 18:31:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2021-11-13 18:31:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2021-11-13 18:31:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2021-11-13 18:31:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2021-11-13 18:31:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2021-11-13 18:31:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2021-11-13 18:31:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2021-11-13 18:31:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2021-11-13 18:31:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2021-11-13 18:31:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2021-11-13 18:31:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2021-11-13 18:31:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2021-11-13 18:31:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2021-11-13 18:31:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2021-11-13 18:31:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2021-11-13 18:31:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2021-11-13 18:31:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2021-11-13 18:31:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2021-11-13 18:31:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2021-11-13 18:31:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2021-11-13 18:31:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2021-11-13 18:31:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2021-11-13 18:31:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2021-11-13 18:31:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2021-11-13 18:31:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2021-11-13 18:31:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2021-11-13 18:31:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2021-11-13 18:31:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2021-11-13 18:31:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2021-11-13 18:31:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2021-11-13 18:31:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2021-11-13 18:31:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2021-11-13 18:31:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2021-11-13 18:31:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2021-11-13 18:31:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2021-11-13 18:31:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2021-11-13 18:31:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2021-11-13 18:31:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2021-11-13 18:31:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2021-11-13 18:31:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-11-13 18:31:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2021-11-13 18:31:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2021-11-13 18:31:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-11-13 18:31:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:31:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-11-13 18:31:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int
[2021-11-13 18:31:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-11-13 18:31:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-11-13 18:31:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-13 18:31:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-11-13 18:31:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2021-11-13 18:31:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-11-13 18:31:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-11-13 18:31:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2021-11-13 18:31:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 18:31:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-11-13 18:31:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 18:31:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:31:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode
[2021-11-13 18:31:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2021-11-13 18:31:09,858 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-13 18:31:20,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:31:20,606 INFO L299 CfgBuilder]: Removed 151 assume(true) statements.
[2021-11-13 18:31:20,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:31:20 BoogieIcfgContainer
[2021-11-13 18:31:20,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:31:20,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:31:20,616 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:31:20,620 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:31:20,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:31:07" (1/3) ...
[2021-11-13 18:31:20,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b8dc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:31:20, skipping insertion in model container
[2021-11-13 18:31:20,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:08" (2/3) ...
[2021-11-13 18:31:20,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b8dc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:31:20, skipping insertion in model container
[2021-11-13 18:31:20,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:31:20" (3/3) ...
[2021-11-13 18:31:20,624 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-1.i
[2021-11-13 18:31:20,630 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:31:20,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 990 error locations.
[2021-11-13 18:31:20,692 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:31:20,701 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 18:31:20,701 INFO L340 AbstractCegarLoop]: Starting to check reachability of 990 error locations.
[2021-11-13 18:31:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 2065 states, 1059 states have (on average 2.203021718602455) internal successors, (2333), 2047 states have internal predecessors, (2333), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16)
[2021-11-13 18:31:20,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-11-13 18:31:20,780 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:20,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:31:20,782 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:20,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:20,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1998037697, now seen corresponding path program 1 times
[2021-11-13 18:31:20,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:20,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082542877]
[2021-11-13 18:31:20,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:20,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:20,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:20,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:20,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 18:31:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:21,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:31:21,148 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:21,304 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 18:31:21,322 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 18:31:21,322 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:21,381 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 18:31:21,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:21,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082542877]
[2021-11-13 18:31:21,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082542877] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:21,384 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:21,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 18:31:21,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277961257]
[2021-11-13 18:31:21,386 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:21,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:31:21,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:21,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:31:21,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:31:21,427 INFO L87 Difference]: Start difference. First operand has 2065 states, 1059 states have (on average 2.203021718602455) internal successors, (2333), 2047 states have internal predecessors, (2333), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) 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 18:31:25,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:25,950 INFO L93 Difference]: Finished difference Result 2563 states and 2729 transitions.
[2021-11-13 18:31:25,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:31:25,957 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 18:31:25,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:25,991 INFO L225 Difference]: With dead ends: 2563
[2021-11-13 18:31:25,992 INFO L226 Difference]: Without dead ends: 2560
[2021-11-13 18:31:25,994 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 18:31:25,997 INFO L933 BasicCegarLoop]: 1278 mSDtfsCounter, 1951 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3575.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.34ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4293.15ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:25,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1961 Valid, 1656 Invalid, 1298 Unknown, 0 Unchecked, 36.34ms Time], IncrementalHoareTripleChecker [23 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 4293.15ms Time]
[2021-11-13 18:31:26,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states.
[2021-11-13 18:31:26,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2206.
[2021-11-13 18:31:26,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1225 states have (on average 2.036734693877551) internal successors, (2495), 2187 states have internal predecessors, (2495), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:26,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 2530 transitions.
[2021-11-13 18:31:26,152 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 2530 transitions. Word has length 7
[2021-11-13 18:31:26,153 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:26,153 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 2530 transitions.
[2021-11-13 18:31:26,154 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 18:31:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 2530 transitions.
[2021-11-13 18:31:26,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-11-13 18:31:26,155 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:26,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:31:26,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:31:26,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:26,371 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:26,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:26,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1998037696, now seen corresponding path program 1 times
[2021-11-13 18:31:26,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:26,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127550500]
[2021-11-13 18:31:26,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:26,373 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:26,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:26,375 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:26,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 18:31:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:26,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:31:26,599 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:26,649 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 18:31:26,667 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 18:31:26,667 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:26,738 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 18:31:26,739 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:26,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127550500]
[2021-11-13 18:31:26,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127550500] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:26,740 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:26,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3
[2021-11-13 18:31:26,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942304834]
[2021-11-13 18:31:26,740 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:26,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:31:26,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:31:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:31:26,743 INFO L87 Difference]: Start difference. First operand 2206 states and 2530 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 18:31:37,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:37,013 INFO L93 Difference]: Finished difference Result 3307 states and 3731 transitions.
[2021-11-13 18:31:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:31:37,014 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 18:31:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:37,035 INFO L225 Difference]: With dead ends: 3307
[2021-11-13 18:31:37,035 INFO L226 Difference]: Without dead ends: 3307
[2021-11-13 18:31:37,035 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 18:31:37,037 INFO L933 BasicCegarLoop]: 1572 mSDtfsCounter, 3094 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8791.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.34ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10114.99ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:37,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3102 Valid, 2945 Invalid, 1760 Unknown, 0 Unchecked, 29.34ms Time], IncrementalHoareTripleChecker [27 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 10114.99ms Time]
[2021-11-13 18:31:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states.
[2021-11-13 18:31:37,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 2370.
[2021-11-13 18:31:37,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 1401 states have (on average 2.0249821556031407) internal successors, (2837), 2351 states have internal predecessors, (2837), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 2872 transitions.
[2021-11-13 18:31:37,140 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 2872 transitions. Word has length 7
[2021-11-13 18:31:37,140 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:37,140 INFO L470 AbstractCegarLoop]: Abstraction has 2370 states and 2872 transitions.
[2021-11-13 18:31:37,140 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 18:31:37,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 2872 transitions.
[2021-11-13 18:31:37,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:31:37,142 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:37,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:31:37,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 18:31:37,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:37,343 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:37,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:37,344 INFO L85 PathProgramCache]: Analyzing trace with hash -372854650, now seen corresponding path program 1 times
[2021-11-13 18:31:37,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:37,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358070730]
[2021-11-13 18:31:37,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:37,345 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:37,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:37,348 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:37,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 18:31:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:37,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:31:37,590 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:37,615 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 18:31:37,634 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 18:31:37,634 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:37,680 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 18:31:37,680 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:37,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358070730]
[2021-11-13 18:31:37,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358070730] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:37,682 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:37,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 18:31:37,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541134756]
[2021-11-13 18:31:37,683 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:37,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:31:37,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:37,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:31:37,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:31:37,685 INFO L87 Difference]: Start difference. First operand 2370 states and 2872 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 18:31:41,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:41,534 INFO L93 Difference]: Finished difference Result 3108 states and 3610 transitions.
[2021-11-13 18:31:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:31:41,534 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 18:31:41,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:41,551 INFO L225 Difference]: With dead ends: 3108
[2021-11-13 18:31:41,552 INFO L226 Difference]: Without dead ends: 3108
[2021-11-13 18:31:41,552 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 18:31:41,554 INFO L933 BasicCegarLoop]: 1954 mSDtfsCounter, 1987 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3131.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1997 SdHoareTripleChecker+Valid, 2605 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.40ms SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3772.02ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:41,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1997 Valid, 2605 Invalid, 1475 Unknown, 0 Unchecked, 14.40ms Time], IncrementalHoareTripleChecker [102 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 3772.02ms Time]
[2021-11-13 18:31:41,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states.
[2021-11-13 18:31:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2279.
[2021-11-13 18:31:41,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 1401 states have (on average 1.9357601713062098) internal successors, (2712), 2260 states have internal predecessors, (2712), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:41,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 2747 transitions.
[2021-11-13 18:31:41,627 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 2747 transitions. Word has length 12
[2021-11-13 18:31:41,627 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:41,628 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 2747 transitions.
[2021-11-13 18:31:41,628 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 18:31:41,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 2747 transitions.
[2021-11-13 18:31:41,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:31:41,629 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:41,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:31:41,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-13 18:31:41,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:41,849 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr7REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:41,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash -372854649, now seen corresponding path program 1 times
[2021-11-13 18:31:41,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:41,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746426941]
[2021-11-13 18:31:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:41,854 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:41,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:41,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:41,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-13 18:31:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:42,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:31:42,108 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:42,162 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 18:31:42,209 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 18:31:42,209 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:42,322 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 18:31:42,323 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:42,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746426941]
[2021-11-13 18:31:42,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746426941] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:42,325 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:42,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3
[2021-11-13 18:31:42,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672228805]
[2021-11-13 18:31:42,326 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:42,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:31:42,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:42,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:31:42,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:31:42,327 INFO L87 Difference]: Start difference. First operand 2279 states and 2747 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 18:31:51,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:51,146 INFO L93 Difference]: Finished difference Result 3236 states and 3639 transitions.
[2021-11-13 18:31:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:31:51,149 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 18:31:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:51,164 INFO L225 Difference]: With dead ends: 3236
[2021-11-13 18:31:51,164 INFO L226 Difference]: Without dead ends: 3236
[2021-11-13 18:31:51,165 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 18:31:51,166 INFO L933 BasicCegarLoop]: 2286 mSDtfsCounter, 2802 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7609.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2808 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.13ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8722.12ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:51,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2808 Valid, 3289 Invalid, 1583 Unknown, 0 Unchecked, 20.13ms Time], IncrementalHoareTripleChecker [31 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 8722.12ms Time]
[2021-11-13 18:31:51,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states.
[2021-11-13 18:31:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 2271.
[2021-11-13 18:31:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 1403 states have (on average 1.9187455452601567) internal successors, (2692), 2252 states have internal predecessors, (2692), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 2727 transitions.
[2021-11-13 18:31:51,234 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 2727 transitions. Word has length 12
[2021-11-13 18:31:51,234 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:51,235 INFO L470 AbstractCegarLoop]: Abstraction has 2271 states and 2727 transitions.
[2021-11-13 18:31:51,235 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 18:31:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 2727 transitions.
[2021-11-13 18:31:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-11-13 18:31:51,236 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:51,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:31:51,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0
[2021-11-13 18:31:51,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:51,449 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr658REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:51,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1402084466, now seen corresponding path program 1 times
[2021-11-13 18:31:51,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:51,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111939645]
[2021-11-13 18:31:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:51,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:51,451 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:51,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-13 18:31:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:51,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:31:51,652 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:51,704 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 18:31:51,704 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:51,773 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 18:31:51,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:51,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111939645]
[2021-11-13 18:31:51,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111939645] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:51,774 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:51,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:31:51,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987357703]
[2021-11-13 18:31:51,774 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:51,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:31:51,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:51,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:31:51,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:31:51,775 INFO L87 Difference]: Start difference. First operand 2271 states and 2727 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:31:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:51,844 INFO L93 Difference]: Finished difference Result 2229 states and 2684 transitions.
[2021-11-13 18:31:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:31:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2021-11-13 18:31:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:51,861 INFO L225 Difference]: With dead ends: 2229
[2021-11-13 18:31:51,861 INFO L226 Difference]: Without dead ends: 2229
[2021-11-13 18:31:51,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 18:31:51,864 INFO L933 BasicCegarLoop]: 2004 mSDtfsCounter, 1592 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.57ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.99ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:51,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1596 Valid, 3219 Invalid, 16 Unknown, 0 Unchecked, 10.57ms Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 27.99ms Time]
[2021-11-13 18:31:51,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states.
[2021-11-13 18:31:51,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2229.
[2021-11-13 18:31:51,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 1385 states have (on average 1.912635379061372) internal successors, (2649), 2210 states have internal predecessors, (2649), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:51,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 2684 transitions.
[2021-11-13 18:31:51,925 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 2684 transitions. Word has length 15
[2021-11-13 18:31:51,926 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:51,926 INFO L470 AbstractCegarLoop]: Abstraction has 2229 states and 2684 transitions.
[2021-11-13 18:31:51,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:31:51,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 2684 transitions.
[2021-11-13 18:31:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-11-13 18:31:51,927 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:51,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:31:51,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-11-13 18:31:52,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:52,141 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr682REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:52,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:52,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1216614472, now seen corresponding path program 1 times
[2021-11-13 18:31:52,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:52,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539768956]
[2021-11-13 18:31:52,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:52,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:52,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:52,145 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:52,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-11-13 18:31:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:52,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:31:52,372 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:52,432 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 18:31:52,432 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:52,486 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 18:31:52,487 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:52,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539768956]
[2021-11-13 18:31:52,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539768956] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:52,487 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:52,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2021-11-13 18:31:52,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702326145]
[2021-11-13 18:31:52,488 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:52,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:31:52,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:52,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:31:52,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:31:52,490 INFO L87 Difference]: Start difference. First operand 2229 states and 2684 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 18:31:52,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:52,647 INFO L93 Difference]: Finished difference Result 2208 states and 2656 transitions.
[2021-11-13 18:31:52,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:31:52,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2021-11-13 18:31:52,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:52,662 INFO L225 Difference]: With dead ends: 2208
[2021-11-13 18:31:52,663 INFO L226 Difference]: Without dead ends: 2208
[2021-11-13 18:31:52,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 18:31:52,666 INFO L933 BasicCegarLoop]: 1959 mSDtfsCounter, 767 mSDsluCounter, 4383 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 6342 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.46ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.31ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:52,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 6342 Invalid, 64 Unknown, 0 Unchecked, 16.46ms Time], IncrementalHoareTripleChecker [32 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 70.31ms Time]
[2021-11-13 18:31:52,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states.
[2021-11-13 18:31:52,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2207.
[2021-11-13 18:31:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1377 states have (on average 1.9026870007262164) internal successors, (2620), 2188 states have internal predecessors, (2620), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:52,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 2655 transitions.
[2021-11-13 18:31:52,744 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 2655 transitions. Word has length 17
[2021-11-13 18:31:52,744 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:52,744 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 2655 transitions.
[2021-11-13 18:31:52,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 18:31:52,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 2655 transitions.
[2021-11-13 18:31:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-11-13 18:31:52,747 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:52,747 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 18:31:52,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0
[2021-11-13 18:31:52,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:52,960 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr334REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:52,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:52,961 INFO L85 PathProgramCache]: Analyzing trace with hash 904627283, now seen corresponding path program 1 times
[2021-11-13 18:31:52,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:52,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696863122]
[2021-11-13 18:31:52,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:52,962 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:52,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:52,963 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:53,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2021-11-13 18:31:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:53,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:31:53,271 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:53,328 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 18:31:53,328 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:53,385 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 18:31:53,385 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:53,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696863122]
[2021-11-13 18:31:53,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696863122] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:53,386 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:53,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:31:53,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766248323]
[2021-11-13 18:31:53,386 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:53,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:31:53,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:53,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:31:53,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:31:53,387 INFO L87 Difference]: Start difference. First operand 2207 states and 2655 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 18:31:53,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:53,480 INFO L93 Difference]: Finished difference Result 3441 states and 3974 transitions.
[2021-11-13 18:31:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:31:53,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 18:31:53,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:53,501 INFO L225 Difference]: With dead ends: 3441
[2021-11-13 18:31:53,501 INFO L226 Difference]: Without dead ends: 3441
[2021-11-13 18:31:53,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 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 18:31:53,503 INFO L933 BasicCegarLoop]: 3287 mSDtfsCounter, 3762 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3772 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.08ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.45ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:53,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3772 Valid, 4693 Invalid, 22 Unknown, 0 Unchecked, 10.08ms Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 40.45ms Time]
[2021-11-13 18:31:53,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states.
[2021-11-13 18:31:53,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 2129.
[2021-11-13 18:31:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 1323 states have (on average 1.8828420256991685) internal successors, (2491), 2110 states have internal predecessors, (2491), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:53,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 2526 transitions.
[2021-11-13 18:31:53,577 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 2526 transitions. Word has length 24
[2021-11-13 18:31:53,578 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:53,578 INFO L470 AbstractCegarLoop]: Abstraction has 2129 states and 2526 transitions.
[2021-11-13 18:31:53,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 18:31:53,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 2526 transitions.
[2021-11-13 18:31:53,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-11-13 18:31:53,580 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:53,580 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 18:31:53,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2021-11-13 18:31:53,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:53,797 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr16REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:53,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:53,798 INFO L85 PathProgramCache]: Analyzing trace with hash 759323603, now seen corresponding path program 1 times
[2021-11-13 18:31:53,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:53,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181411816]
[2021-11-13 18:31:53,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:53,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:53,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:53,800 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:53,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2021-11-13 18:31:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:54,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:31:54,038 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:54,097 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 18:31:54,097 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:54,151 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 18:31:54,152 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:54,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181411816]
[2021-11-13 18:31:54,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181411816] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:54,152 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:54,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:31:54,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451435941]
[2021-11-13 18:31:54,152 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:54,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:31:54,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:54,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:31:54,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:31:54,154 INFO L87 Difference]: Start difference. First operand 2129 states and 2526 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 18:31:54,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:54,222 INFO L93 Difference]: Finished difference Result 3364 states and 3897 transitions.
[2021-11-13 18:31:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:31:54,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 18:31:54,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:54,244 INFO L225 Difference]: With dead ends: 3364
[2021-11-13 18:31:54,244 INFO L226 Difference]: Without dead ends: 3364
[2021-11-13 18:31:54,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 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 18:31:54,260 INFO L933 BasicCegarLoop]: 2985 mSDtfsCounter, 1838 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 5725 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.28ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:54,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1848 Valid, 5725 Invalid, 12 Unknown, 0 Unchecked, 9.37ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 18.28ms Time]
[2021-11-13 18:31:54,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states.
[2021-11-13 18:31:54,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 2087.
[2021-11-13 18:31:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 1305 states have (on average 1.8758620689655172) internal successors, (2448), 2068 states have internal predecessors, (2448), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:54,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2483 transitions.
[2021-11-13 18:31:54,319 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2483 transitions. Word has length 24
[2021-11-13 18:31:54,319 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:54,319 INFO L470 AbstractCegarLoop]: Abstraction has 2087 states and 2483 transitions.
[2021-11-13 18:31:54,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 18:31:54,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2483 transitions.
[2021-11-13 18:31:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-11-13 18:31:54,326 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:54,326 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]
[2021-11-13 18:31:54,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2021-11-13 18:31:54,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:54,543 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr358REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:54,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:54,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1763452109, now seen corresponding path program 1 times
[2021-11-13 18:31:54,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:54,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021339635]
[2021-11-13 18:31:54,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:54,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:54,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:54,545 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:54,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2021-11-13 18:31:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:54,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:31:54,799 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:54,873 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 18:31:54,873 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:54,946 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 18:31:54,947 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:54,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021339635]
[2021-11-13 18:31:54,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021339635] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:54,947 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:54,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2021-11-13 18:31:54,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530523102]
[2021-11-13 18:31:54,948 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:54,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:31:54,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:31:54,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:31:54,950 INFO L87 Difference]: Start difference. First operand 2087 states and 2483 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 18:31:55,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:55,117 INFO L93 Difference]: Finished difference Result 3322 states and 3804 transitions.
[2021-11-13 18:31:55,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:31:55,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26
[2021-11-13 18:31:55,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:55,137 INFO L225 Difference]: With dead ends: 3322
[2021-11-13 18:31:55,137 INFO L226 Difference]: Without dead ends: 3322
[2021-11-13 18:31:55,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 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 18:31:55,139 INFO L933 BasicCegarLoop]: 2934 mSDtfsCounter, 3608 mSDsluCounter, 4291 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 7225 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.12ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.45ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:55,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3618 Valid, 7225 Invalid, 84 Unknown, 0 Unchecked, 13.12ms Time], IncrementalHoareTripleChecker [52 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 98.45ms Time]
[2021-11-13 18:31:55,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states.
[2021-11-13 18:31:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2049.
[2021-11-13 18:31:55,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1281 states have (on average 1.8430913348946136) internal successors, (2361), 2030 states have internal predecessors, (2361), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:55,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2396 transitions.
[2021-11-13 18:31:55,198 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2396 transitions. Word has length 26
[2021-11-13 18:31:55,198 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:55,198 INFO L470 AbstractCegarLoop]: Abstraction has 2049 states and 2396 transitions.
[2021-11-13 18:31:55,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 18:31:55,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2396 transitions.
[2021-11-13 18:31:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-11-13 18:31:55,200 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:55,200 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]
[2021-11-13 18:31:55,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2021-11-13 18:31:55,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:55,415 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr40REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:55,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:55,415 INFO L85 PathProgramCache]: Analyzing trace with hash -434458931, now seen corresponding path program 1 times
[2021-11-13 18:31:55,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:55,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266191075]
[2021-11-13 18:31:55,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:55,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:55,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:55,418 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:55,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2021-11-13 18:31:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:55,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:31:55,676 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:55,771 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 18:31:55,771 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:55,843 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 18:31:55,843 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:55,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266191075]
[2021-11-13 18:31:55,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266191075] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:55,844 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:55,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2021-11-13 18:31:55,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862543768]
[2021-11-13 18:31:55,844 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:55,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:31:55,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:55,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:31:55,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:31:55,845 INFO L87 Difference]: Start difference. First operand 2049 states and 2396 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 18:31:55,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:31:55,947 INFO L93 Difference]: Finished difference Result 3283 states and 3753 transitions.
[2021-11-13 18:31:55,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:31:55,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26
[2021-11-13 18:31:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:31:55,960 INFO L225 Difference]: With dead ends: 3283
[2021-11-13 18:31:55,960 INFO L226 Difference]: Without dead ends: 3283
[2021-11-13 18:31:55,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 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 18:31:55,961 INFO L933 BasicCegarLoop]: 3093 mSDtfsCounter, 1774 mSDsluCounter, 5757 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 8850 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.39ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.02ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:31:55,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 8850 Invalid, 64 Unknown, 0 Unchecked, 10.39ms Time], IncrementalHoareTripleChecker [32 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 47.02ms Time]
[2021-11-13 18:31:55,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states.
[2021-11-13 18:31:56,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 2027.
[2021-11-13 18:31:56,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1273 states have (on average 1.8318931657501965) internal successors, (2332), 2008 states have internal predecessors, (2332), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:31:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2367 transitions.
[2021-11-13 18:31:56,012 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2367 transitions. Word has length 26
[2021-11-13 18:31:56,013 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:31:56,013 INFO L470 AbstractCegarLoop]: Abstraction has 2027 states and 2367 transitions.
[2021-11-13 18:31:56,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 18:31:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2367 transitions.
[2021-11-13 18:31:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-11-13 18:31:56,014 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:31:56,015 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]
[2021-11-13 18:31:56,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2021-11-13 18:31:56,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:31:56,229 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr696REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:31:56,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:31:56,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1017481046, now seen corresponding path program 1 times
[2021-11-13 18:31:56,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:31:56,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034478266]
[2021-11-13 18:31:56,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:31:56,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:31:56,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:31:56,231 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:31:56,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2021-11-13 18:31:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:31:56,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:31:56,481 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:31:56,499 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 18:31:56,606 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 18:31:56,606 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:31:56,739 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 18:31:56,739 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:31:56,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034478266]
[2021-11-13 18:31:56,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034478266] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:31:56,741 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:31:56,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 18:31:56,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2327814]
[2021-11-13 18:31:56,741 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:31:56,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:31:56,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:31:56,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:31:56,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:31:56,742 INFO L87 Difference]: Start difference. First operand 2027 states and 2367 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 18:32:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:32:00,428 INFO L93 Difference]: Finished difference Result 2302 states and 2544 transitions.
[2021-11-13 18:32:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:32:00,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 31
[2021-11-13 18:32:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:32:00,437 INFO L225 Difference]: With dead ends: 2302
[2021-11-13 18:32:00,438 INFO L226 Difference]: Without dead ends: 2302
[2021-11-13 18:32:00,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 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 18:32:00,439 INFO L933 BasicCegarLoop]: 1126 mSDtfsCounter, 2347 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3011.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.17ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3618.28ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:32:00,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2353 Valid, 2027 Invalid, 1502 Unknown, 0 Unchecked, 13.17ms Time], IncrementalHoareTripleChecker [21 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 3618.28ms Time]
[2021-11-13 18:32:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states.
[2021-11-13 18:32:00,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2023.
[2021-11-13 18:32:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 1273 states have (on average 1.828750981932443) internal successors, (2328), 2004 states have internal predecessors, (2328), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:32:00,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2363 transitions.
[2021-11-13 18:32:00,487 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2363 transitions. Word has length 31
[2021-11-13 18:32:00,488 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:32:00,488 INFO L470 AbstractCegarLoop]: Abstraction has 2023 states and 2363 transitions.
[2021-11-13 18:32:00,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 18:32:00,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2363 transitions.
[2021-11-13 18:32:00,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-11-13 18:32:00,489 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:32:00,490 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]
[2021-11-13 18:32:00,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2021-11-13 18:32:00,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:32:00,703 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr697REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:32:00,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:32:00,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1017481047, now seen corresponding path program 1 times
[2021-11-13 18:32:00,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:32:00,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536680000]
[2021-11-13 18:32:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:32:00,705 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:32:00,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:32:00,706 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:32:00,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2021-11-13 18:32:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:32:00,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:32:00,940 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:32:00,964 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 18:32:01,254 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 18:32:01,254 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:32:01,772 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 18:32:01,772 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:32:01,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536680000]
[2021-11-13 18:32:01,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536680000] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:32:01,773 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:32:01,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:32:01,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8403002]
[2021-11-13 18:32:01,773 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:32:01,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:32:01,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:32:01,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:32:01,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:32:01,776 INFO L87 Difference]: Start difference. First operand 2023 states and 2363 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 18:32:15,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:32:15,675 INFO L93 Difference]: Finished difference Result 2821 states and 3136 transitions.
[2021-11-13 18:32:15,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 18:32:15,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 31
[2021-11-13 18:32:15,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:32:15,683 INFO L225 Difference]: With dead ends: 2821
[2021-11-13 18:32:15,683 INFO L226 Difference]: Without dead ends: 2821
[2021-11-13 18:32:15,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 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 18:32:15,684 INFO L933 BasicCegarLoop]: 1371 mSDtfsCounter, 4074 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 2673 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12177.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.75ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13698.90ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:32:15,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4074 Valid, 3733 Invalid, 2702 Unknown, 0 Unchecked, 28.75ms Time], IncrementalHoareTripleChecker [29 Valid, 2673 Invalid, 0 Unknown, 0 Unchecked, 13698.90ms Time]
[2021-11-13 18:32:15,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states.
[2021-11-13 18:32:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2056.
[2021-11-13 18:32:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 1307 states have (on average 1.809487375669472) internal successors, (2365), 2037 states have internal predecessors, (2365), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:32:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2400 transitions.
[2021-11-13 18:32:15,730 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2400 transitions. Word has length 31
[2021-11-13 18:32:15,730 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:32:15,731 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2400 transitions.
[2021-11-13 18:32:15,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 18:32:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2400 transitions.
[2021-11-13 18:32:15,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2021-11-13 18:32:15,732 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:32:15,732 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]
[2021-11-13 18:32:15,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2021-11-13 18:32:15,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:32:15,945 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr372REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:32:15,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:32:15,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1349482981, now seen corresponding path program 1 times
[2021-11-13 18:32:15,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:32:15,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262457342]
[2021-11-13 18:32:15,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:32:15,948 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:32:15,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:32:15,949 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:32:15,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2021-11-13 18:32:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:32:16,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:32:16,196 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:32:16,229 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 18:32:16,369 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 18:32:16,369 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:32:16,517 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 18:32:16,517 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:32:16,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262457342]
[2021-11-13 18:32:16,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262457342] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:32:16,518 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:32:16,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 18:32:16,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823375126]
[2021-11-13 18:32:16,518 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:32:16,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:32:16,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:32:16,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:32:16,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:32:16,520 INFO L87 Difference]: Start difference. First operand 2056 states and 2400 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 18:32:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:32:22,809 INFO L93 Difference]: Finished difference Result 4329 states and 4874 transitions.
[2021-11-13 18:32:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:32:22,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 40
[2021-11-13 18:32:22,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:32:22,826 INFO L225 Difference]: With dead ends: 4329
[2021-11-13 18:32:22,826 INFO L226 Difference]: Without dead ends: 4329
[2021-11-13 18:32:22,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 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 18:32:22,828 INFO L933 BasicCegarLoop]: 1891 mSDtfsCounter, 4631 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5158.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4641 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.34ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6166.62ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:32:22,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4641 Valid, 3898 Invalid, 2525 Unknown, 0 Unchecked, 22.34ms Time], IncrementalHoareTripleChecker [51 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 6166.62ms Time]
[2021-11-13 18:32:22,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4329 states.
[2021-11-13 18:32:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4329 to 2053.
[2021-11-13 18:32:22,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2053 states, 1307 states have (on average 1.801071155317521) internal successors, (2354), 2034 states have internal predecessors, (2354), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:32:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 2389 transitions.
[2021-11-13 18:32:22,879 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 2389 transitions. Word has length 40
[2021-11-13 18:32:22,879 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:32:22,879 INFO L470 AbstractCegarLoop]: Abstraction has 2053 states and 2389 transitions.
[2021-11-13 18:32:22,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 18:32:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 2389 transitions.
[2021-11-13 18:32:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2021-11-13 18:32:22,881 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:32:22,881 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]
[2021-11-13 18:32:22,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2021-11-13 18:32:23,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:32:23,097 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr373REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:32:23,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:32:23,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1349482980, now seen corresponding path program 1 times
[2021-11-13 18:32:23,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:32:23,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064911062]
[2021-11-13 18:32:23,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:32:23,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:32:23,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:32:23,100 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:32:23,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2021-11-13 18:32:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:32:23,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:32:23,350 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:32:23,368 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 18:32:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:32:23,670 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:32:24,131 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 18:32:24,131 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:32:24,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064911062]
[2021-11-13 18:32:24,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064911062] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:32:24,132 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:32:24,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:32:24,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450843282]
[2021-11-13 18:32:24,132 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:32:24,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:32:24,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:32:24,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:32:24,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:32:24,134 INFO L87 Difference]: Start difference. First operand 2053 states and 2389 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 18:32:39,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:32:39,356 INFO L93 Difference]: Finished difference Result 4059 states and 4532 transitions.
[2021-11-13 18:32:39,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:32:39,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 40
[2021-11-13 18:32:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:32:39,365 INFO L225 Difference]: With dead ends: 4059
[2021-11-13 18:32:39,366 INFO L226 Difference]: Without dead ends: 4059
[2021-11-13 18:32:39,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:32:39,367 INFO L933 BasicCegarLoop]: 2199 mSDtfsCounter, 5491 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 3188 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13329.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5496 SdHoareTripleChecker+Valid, 5212 SdHoareTripleChecker+Invalid, 3222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.14ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15027.95ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:32:39,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5496 Valid, 5212 Invalid, 3222 Unknown, 0 Unchecked, 26.14ms Time], IncrementalHoareTripleChecker [34 Valid, 3188 Invalid, 0 Unknown, 0 Unchecked, 15027.95ms Time]
[2021-11-13 18:32:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states.
[2021-11-13 18:32:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 2053.
[2021-11-13 18:32:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2053 states, 1307 states have (on average 1.7980107115531752) internal successors, (2350), 2034 states have internal predecessors, (2350), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:32:39,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 2385 transitions.
[2021-11-13 18:32:39,408 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 2385 transitions. Word has length 40
[2021-11-13 18:32:39,408 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:32:39,408 INFO L470 AbstractCegarLoop]: Abstraction has 2053 states and 2385 transitions.
[2021-11-13 18:32:39,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 18:32:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 2385 transitions.
[2021-11-13 18:32:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2021-11-13 18:32:39,409 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:32:39,409 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]
[2021-11-13 18:32:39,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2021-11-13 18:32:39,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:32:39,622 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr54REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:32:39,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:32:39,622 INFO L85 PathProgramCache]: Analyzing trace with hash 958099867, now seen corresponding path program 1 times
[2021-11-13 18:32:39,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:32:39,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640059106]
[2021-11-13 18:32:39,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:32:39,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:32:39,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:32:39,624 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:32:39,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2021-11-13 18:32:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:32:39,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:32:39,857 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:32:39,872 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 18:32:39,961 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 18:32:39,961 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:32:40,064 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 18:32:40,065 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:32:40,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640059106]
[2021-11-13 18:32:40,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640059106] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:32:40,065 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:32:40,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 18:32:40,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328791076]
[2021-11-13 18:32:40,065 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:32:40,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:32:40,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:32:40,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:32:40,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:32:40,067 INFO L87 Difference]: Start difference. First operand 2053 states and 2385 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 18:32:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:32:44,715 INFO L93 Difference]: Finished difference Result 3942 states and 4463 transitions.
[2021-11-13 18:32:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:32:44,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 40
[2021-11-13 18:32:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:32:44,723 INFO L225 Difference]: With dead ends: 3942
[2021-11-13 18:32:44,723 INFO L226 Difference]: Without dead ends: 3942
[2021-11-13 18:32:44,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 18:32:44,724 INFO L933 BasicCegarLoop]: 1977 mSDtfsCounter, 4098 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3889.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4105 SdHoareTripleChecker+Valid, 3791 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.88ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4565.75ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:32:44,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4105 Valid, 3791 Invalid, 2320 Unknown, 0 Unchecked, 15.88ms Time], IncrementalHoareTripleChecker [43 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 4565.75ms Time]
[2021-11-13 18:32:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states.
[2021-11-13 18:32:44,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 2049.
[2021-11-13 18:32:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1307 states have (on average 1.7949502677888294) internal successors, (2346), 2030 states have internal predecessors, (2346), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:32:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2381 transitions.
[2021-11-13 18:32:44,761 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2381 transitions. Word has length 40
[2021-11-13 18:32:44,762 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:32:44,762 INFO L470 AbstractCegarLoop]: Abstraction has 2049 states and 2381 transitions.
[2021-11-13 18:32:44,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 18:32:44,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2381 transitions.
[2021-11-13 18:32:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2021-11-13 18:32:44,763 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:32:44,763 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]
[2021-11-13 18:32:44,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2021-11-13 18:32:44,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:32:44,976 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr55REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:32:44,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:32:44,976 INFO L85 PathProgramCache]: Analyzing trace with hash 958099868, now seen corresponding path program 1 times
[2021-11-13 18:32:44,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:32:44,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071678210]
[2021-11-13 18:32:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:32:44,977 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:32:44,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:32:44,978 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:32:45,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2021-11-13 18:32:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:32:45,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:32:45,230 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:32:45,246 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 18:32:45,516 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 18:32:45,516 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:32:45,983 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 18:32:45,984 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:32:45,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071678210]
[2021-11-13 18:32:45,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071678210] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:32:45,984 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:32:45,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:32:45,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272759934]
[2021-11-13 18:32:45,985 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:32:45,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:32:45,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:32:45,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:32:45,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:32:45,986 INFO L87 Difference]: Start difference. First operand 2049 states and 2381 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 18:33:01,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:01,144 INFO L93 Difference]: Finished difference Result 3827 states and 4226 transitions.
[2021-11-13 18:33:01,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 18:33:01,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 40
[2021-11-13 18:33:01,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:01,151 INFO L225 Difference]: With dead ends: 3827
[2021-11-13 18:33:01,151 INFO L226 Difference]: Without dead ends: 3827
[2021-11-13 18:33:01,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:33:01,152 INFO L933 BasicCegarLoop]: 2410 mSDtfsCounter, 2773 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 4606 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13324.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 6990 SdHoareTripleChecker+Invalid, 4630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.27ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14976.26ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:01,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2778 Valid, 6990 Invalid, 4630 Unknown, 0 Unchecked, 27.27ms Time], IncrementalHoareTripleChecker [24 Valid, 4606 Invalid, 0 Unknown, 0 Unchecked, 14976.26ms Time]
[2021-11-13 18:33:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states.
[2021-11-13 18:33:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 2045.
[2021-11-13 18:33:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 1307 states have (on average 1.7918898240244836) internal successors, (2342), 2026 states have internal predecessors, (2342), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:33:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2377 transitions.
[2021-11-13 18:33:01,189 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2377 transitions. Word has length 40
[2021-11-13 18:33:01,190 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:01,190 INFO L470 AbstractCegarLoop]: Abstraction has 2045 states and 2377 transitions.
[2021-11-13 18:33:01,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 18:33:01,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2377 transitions.
[2021-11-13 18:33:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2021-11-13 18:33:01,191 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:01,191 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]
[2021-11-13 18:33:01,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:01,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:01,404 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr704REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:01,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:01,405 INFO L85 PathProgramCache]: Analyzing trace with hash -2127161085, now seen corresponding path program 1 times
[2021-11-13 18:33:01,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:01,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077559849]
[2021-11-13 18:33:01,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:01,406 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:01,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:01,407 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:01,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2021-11-13 18:33:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:01,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:01,631 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:01,747 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 18:33:01,747 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:01,860 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 18:33:01,860 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:01,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077559849]
[2021-11-13 18:33:01,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077559849] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:01,861 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:01,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:33:01,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759679739]
[2021-11-13 18:33:01,862 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:01,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:33:01,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:01,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:33:01,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:33:01,863 INFO L87 Difference]: Start difference. First operand 2045 states and 2377 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 18:33:01,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:01,922 INFO L93 Difference]: Finished difference Result 2039 states and 2363 transitions.
[2021-11-13 18:33:01,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:01,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 44
[2021-11-13 18:33:01,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:01,926 INFO L225 Difference]: With dead ends: 2039
[2021-11-13 18:33:01,926 INFO L226 Difference]: Without dead ends: 2039
[2021-11-13 18:33:01,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 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 18:33:01,927 INFO L933 BasicCegarLoop]: 1789 mSDtfsCounter, 749 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.45ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.27ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:01,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [753 Valid, 4607 Invalid, 41 Unknown, 0 Unchecked, 4.45ms Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 36.27ms Time]
[2021-11-13 18:33:01,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states.
[2021-11-13 18:33:01,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 2039.
[2021-11-13 18:33:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 1301 states have (on average 1.7893927747886242) internal successors, (2328), 2020 states have internal predecessors, (2328), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17)
[2021-11-13 18:33:01,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2363 transitions.
[2021-11-13 18:33:01,956 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2363 transitions. Word has length 44
[2021-11-13 18:33:01,957 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:01,957 INFO L470 AbstractCegarLoop]: Abstraction has 2039 states and 2363 transitions.
[2021-11-13 18:33:01,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 18:33:01,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2363 transitions.
[2021-11-13 18:33:01,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2021-11-13 18:33:01,958 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:01,958 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]
[2021-11-13 18:33:01,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:02,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:02,171 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr704REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:02,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:02,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1978131895, now seen corresponding path program 1 times
[2021-11-13 18:33:02,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:02,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505179174]
[2021-11-13 18:33:02,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:02,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:02,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:02,172 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:02,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2021-11-13 18:33:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:02,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:02,397 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:02,728 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 18:33:02,728 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:03,032 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 18:33:03,033 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:03,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505179174]
[2021-11-13 18:33:03,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505179174] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:03,033 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:03,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 18:33:03,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336471489]
[2021-11-13 18:33:03,033 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:03,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:33:03,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:33:03,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:33:03,034 INFO L87 Difference]: Start difference. First operand 2039 states and 2363 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 18:33:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:03,230 INFO L93 Difference]: Finished difference Result 3185 states and 3625 transitions.
[2021-11-13 18:33:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:33:03,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 52
[2021-11-13 18:33:03,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:03,237 INFO L225 Difference]: With dead ends: 3185
[2021-11-13 18:33:03,238 INFO L226 Difference]: Without dead ends: 3185
[2021-11-13 18:33:03,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 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 18:33:03,238 INFO L933 BasicCegarLoop]: 1809 mSDtfsCounter, 1176 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 143.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 3483 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.68ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 169.54ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:03,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 3483 Invalid, 66 Unknown, 0 Unchecked, 4.68ms Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 169.54ms Time]
[2021-11-13 18:33:03,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states.
[2021-11-13 18:33:03,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 2640.
[2021-11-13 18:33:03,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 1900 states have (on average 1.7689473684210526) internal successors, (3361), 2616 states have internal predecessors, (3361), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22)
[2021-11-13 18:33:03,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3406 transitions.
[2021-11-13 18:33:03,279 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3406 transitions. Word has length 52
[2021-11-13 18:33:03,279 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:03,279 INFO L470 AbstractCegarLoop]: Abstraction has 2640 states and 3406 transitions.
[2021-11-13 18:33:03,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 18:33:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3406 transitions.
[2021-11-13 18:33:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2021-11-13 18:33:03,280 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:03,281 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]
[2021-11-13 18:33:03,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:03,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:03,493 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr437REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash 792533254, now seen corresponding path program 1 times
[2021-11-13 18:33:03,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:03,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083236714]
[2021-11-13 18:33:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:03,494 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:03,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:03,494 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:03,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2021-11-13 18:33:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:03,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:03,719 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:03,824 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 18:33:03,824 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:03,927 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 18:33:03,927 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:03,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083236714]
[2021-11-13 18:33:03,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083236714] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:03,928 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:03,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:33:03,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899379021]
[2021-11-13 18:33:03,928 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:03,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:33:03,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:03,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:33:03,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:33:03,929 INFO L87 Difference]: Start difference. First operand 2640 states and 3406 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 18:33:03,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:03,991 INFO L93 Difference]: Finished difference Result 3595 states and 4417 transitions.
[2021-11-13 18:33:03,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:03,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 55
[2021-11-13 18:33:03,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:04,000 INFO L225 Difference]: With dead ends: 3595
[2021-11-13 18:33:04,000 INFO L226 Difference]: Without dead ends: 3595
[2021-11-13 18:33:04,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 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 18:33:04,001 INFO L933 BasicCegarLoop]: 2859 mSDtfsCounter, 1743 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 6816 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.43ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.52ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:04,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1753 Valid, 6816 Invalid, 41 Unknown, 0 Unchecked, 5.43ms Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 33.52ms Time]
[2021-11-13 18:33:04,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states.
[2021-11-13 18:33:04,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 2616.
[2021-11-13 18:33:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2616 states, 1876 states have (on average 1.7702558635394456) internal successors, (3321), 2592 states have internal predecessors, (3321), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22)
[2021-11-13 18:33:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2616 states to 2616 states and 3366 transitions.
[2021-11-13 18:33:04,044 INFO L78 Accepts]: Start accepts. Automaton has 2616 states and 3366 transitions. Word has length 55
[2021-11-13 18:33:04,044 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:04,044 INFO L470 AbstractCegarLoop]: Abstraction has 2616 states and 3366 transitions.
[2021-11-13 18:33:04,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 18:33:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2616 states and 3366 transitions.
[2021-11-13 18:33:04,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2021-11-13 18:33:04,045 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:04,045 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]
[2021-11-13 18:33:04,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:04,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:04,259 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr73REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:04,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1073849574, now seen corresponding path program 1 times
[2021-11-13 18:33:04,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:04,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674272016]
[2021-11-13 18:33:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:04,260 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:04,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:04,261 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:04,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2021-11-13 18:33:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:04,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:04,573 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:04,691 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 18:33:04,691 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:04,803 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 18:33:04,803 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:04,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674272016]
[2021-11-13 18:33:04,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674272016] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:04,804 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:04,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:33:04,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996891308]
[2021-11-13 18:33:04,805 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:04,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:33:04,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:04,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:33:04,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:33:04,806 INFO L87 Difference]: Start difference. First operand 2616 states and 3366 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 18:33:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:04,894 INFO L93 Difference]: Finished difference Result 3340 states and 3915 transitions.
[2021-11-13 18:33:04,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:04,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 58
[2021-11-13 18:33:04,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:04,900 INFO L225 Difference]: With dead ends: 3340
[2021-11-13 18:33:04,900 INFO L226 Difference]: Without dead ends: 3340
[2021-11-13 18:33:04,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 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 18:33:04,902 INFO L933 BasicCegarLoop]: 2900 mSDtfsCounter, 1734 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 6948 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.73ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.19ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:04,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 6948 Invalid, 41 Unknown, 0 Unchecked, 7.73ms Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 31.19ms Time]
[2021-11-13 18:33:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states.
[2021-11-13 18:33:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 2604.
[2021-11-13 18:33:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2604 states, 1864 states have (on average 1.770922746781116) internal successors, (3301), 2580 states have internal predecessors, (3301), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22)
[2021-11-13 18:33:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 3346 transitions.
[2021-11-13 18:33:04,946 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 3346 transitions. Word has length 58
[2021-11-13 18:33:04,946 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:04,946 INFO L470 AbstractCegarLoop]: Abstraction has 2604 states and 3346 transitions.
[2021-11-13 18:33:04,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 18:33:04,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 3346 transitions.
[2021-11-13 18:33:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2021-11-13 18:33:04,948 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:04,948 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 18:33:04,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:05,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:05,164 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:05,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:05,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1070168250, now seen corresponding path program 1 times
[2021-11-13 18:33:05,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:05,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731507664]
[2021-11-13 18:33:05,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:05,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:05,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:05,165 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:05,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2021-11-13 18:33:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:05,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:05,413 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:05,426 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:33:05,427 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:33:05,427 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:33:05,490 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size
[2021-11-13 18:33:05,491 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 18:33:05,537 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size
[2021-11-13 18:33:05,537 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 18:33:05,647 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 18:33:05,647 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:05,804 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 18:33:05,804 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:05,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731507664]
[2021-11-13 18:33:05,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731507664] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:05,805 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:05,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-13 18:33:05,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725268155]
[2021-11-13 18:33:05,805 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:05,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:33:05,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:05,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:33:05,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:33:05,806 INFO L87 Difference]: Start difference. First operand 2604 states and 3346 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:33:08,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:08,363 INFO L93 Difference]: Finished difference Result 2571 states and 3312 transitions.
[2021-11-13 18:33:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:33:08,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 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 18:33:08,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:08,366 INFO L225 Difference]: With dead ends: 2571
[2021-11-13 18:33:08,366 INFO L226 Difference]: Without dead ends: 2571
[2021-11-13 18:33:08,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 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 18:33:08,367 INFO L933 BasicCegarLoop]: 1690 mSDtfsCounter, 755 mSDsluCounter, 5781 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2174.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 7471 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.74ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2501.66ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:08,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 7471 Invalid, 757 Unknown, 0 Unchecked, 9.74ms Time], IncrementalHoareTripleChecker [3 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 2501.66ms Time]
[2021-11-13 18:33:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states.
[2021-11-13 18:33:08,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2570.
[2021-11-13 18:33:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 1830 states have (on average 1.7846994535519125) internal successors, (3266), 2546 states have internal predecessors, (3266), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22)
[2021-11-13 18:33:08,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 3311 transitions.
[2021-11-13 18:33:08,404 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 3311 transitions. Word has length 61
[2021-11-13 18:33:08,404 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:08,404 INFO L470 AbstractCegarLoop]: Abstraction has 2570 states and 3311 transitions.
[2021-11-13 18:33:08,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:33:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 3311 transitions.
[2021-11-13 18:33:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2021-11-13 18:33:08,405 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:08,406 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]
[2021-11-13 18:33:08,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:08,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:08,620 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr437REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:08,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:08,621 INFO L85 PathProgramCache]: Analyzing trace with hash 170031546, now seen corresponding path program 1 times
[2021-11-13 18:33:08,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:08,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566330209]
[2021-11-13 18:33:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:08,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:08,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:08,623 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:08,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process
[2021-11-13 18:33:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:08,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:08,947 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:09,341 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 18:33:09,341 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:09,725 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 18:33:09,726 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:09,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566330209]
[2021-11-13 18:33:09,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566330209] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:09,726 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:09,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 18:33:09,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758731418]
[2021-11-13 18:33:09,726 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:09,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:33:09,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:09,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:33:09,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:33:09,727 INFO L87 Difference]: Start difference. First operand 2570 states and 3311 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 18:33:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:09,900 INFO L93 Difference]: Finished difference Result 3551 states and 4406 transitions.
[2021-11-13 18:33:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:33:09,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 63
[2021-11-13 18:33:09,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:09,903 INFO L225 Difference]: With dead ends: 3551
[2021-11-13 18:33:09,903 INFO L226 Difference]: Without dead ends: 3551
[2021-11-13 18:33:09,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 18:33:09,904 INFO L933 BasicCegarLoop]: 2015 mSDtfsCounter, 866 mSDsluCounter, 1665 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.32ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128.05ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:09,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [874 Valid, 3680 Invalid, 64 Unknown, 0 Unchecked, 3.32ms Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 128.05ms Time]
[2021-11-13 18:33:09,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states.
[2021-11-13 18:33:09,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3215.
[2021-11-13 18:33:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 2472 states have (on average 1.756472491909385) internal successors, (4342), 3185 states have internal predecessors, (4342), 29 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28)
[2021-11-13 18:33:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 4399 transitions.
[2021-11-13 18:33:09,950 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 4399 transitions. Word has length 63
[2021-11-13 18:33:09,950 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:09,950 INFO L470 AbstractCegarLoop]: Abstraction has 3215 states and 4399 transitions.
[2021-11-13 18:33:09,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 18:33:09,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 4399 transitions.
[2021-11-13 18:33:09,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2021-11-13 18:33:09,951 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:09,952 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 18:33:09,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:10,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:10,165 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr391REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:10,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1536826342, now seen corresponding path program 1 times
[2021-11-13 18:33:10,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:10,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716511775]
[2021-11-13 18:33:10,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:10,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:10,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:10,167 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:10,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process
[2021-11-13 18:33:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:10,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:33:10,525 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:10,553 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 18:33:10,562 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 18:33:11,237 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2021-11-13 18:33:11,238 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 18:33:11,245 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2021-11-13 18:33:11,246 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 18:33:11,292 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 18:33:11,292 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:16,062 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 18:33:16,062 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:16,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716511775]
[2021-11-13 18:33:16,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716511775] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:16,063 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:16,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:33:16,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35402868]
[2021-11-13 18:33:16,063 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:16,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:33:16,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:16,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:33:16,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30
[2021-11-13 18:33:16,065 INFO L87 Difference]: Start difference. First operand 3215 states and 4399 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 18:33:24,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:24,677 INFO L93 Difference]: Finished difference Result 4702 states and 6324 transitions.
[2021-11-13 18:33:24,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:33:24,678 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 18:33:24,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:24,682 INFO L225 Difference]: With dead ends: 4702
[2021-11-13 18:33:24,682 INFO L226 Difference]: Without dead ends: 4702
[2021-11-13 18:33:24,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 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 18:33:24,683 INFO L933 BasicCegarLoop]: 1248 mSDtfsCounter, 2734 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7356.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2749 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 4804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.07ms SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2403 IncrementalHoareTripleChecker+Unchecked, 8479.50ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:24,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2749 Valid, 3516 Invalid, 4804 Unknown, 0 Unchecked, 24.07ms Time], IncrementalHoareTripleChecker [86 Valid, 2315 Invalid, 0 Unknown, 2403 Unchecked, 8479.50ms Time]
[2021-11-13 18:33:24,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4702 states.
[2021-11-13 18:33:24,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4702 to 3207.
[2021-11-13 18:33:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 2525 states have (on average 1.704950495049505) internal successors, (4305), 3177 states have internal predecessors, (4305), 29 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28)
[2021-11-13 18:33:24,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 4362 transitions.
[2021-11-13 18:33:24,737 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 4362 transitions. Word has length 66
[2021-11-13 18:33:24,737 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:24,737 INFO L470 AbstractCegarLoop]: Abstraction has 3207 states and 4362 transitions.
[2021-11-13 18:33:24,738 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 18:33:24,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 4362 transitions.
[2021-11-13 18:33:24,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2021-11-13 18:33:24,756 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:24,757 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]
[2021-11-13 18:33:24,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:24,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:24,972 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr393REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash -578596953, now seen corresponding path program 1 times
[2021-11-13 18:33:24,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:24,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386726187]
[2021-11-13 18:33:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:24,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:24,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:24,974 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:25,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process
[2021-11-13 18:33:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:25,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:33:25,304 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:25,496 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 18:33:25,496 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:25,551 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 18:33:25,889 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 18:33:25,889 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:25,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386726187]
[2021-11-13 18:33:25,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386726187] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:25,889 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:25,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-13 18:33:25,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733369141]
[2021-11-13 18:33:25,890 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:25,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:33:25,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:25,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:33:25,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:33:25,892 INFO L87 Difference]: Start difference. First operand 3207 states and 4362 transitions. Second operand has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 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 18:33:29,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:29,045 INFO L93 Difference]: Finished difference Result 3208 states and 4355 transitions.
[2021-11-13 18:33:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:33:29,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 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 68
[2021-11-13 18:33:29,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:29,050 INFO L225 Difference]: With dead ends: 3208
[2021-11-13 18:33:29,050 INFO L226 Difference]: Without dead ends: 3208
[2021-11-13 18:33:29,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:33:29,051 INFO L933 BasicCegarLoop]: 1064 mSDtfsCounter, 6080 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2611.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6090 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.54ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3100.37ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:29,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6090 Valid, 1253 Invalid, 885 Unknown, 0 Unchecked, 12.54ms Time], IncrementalHoareTripleChecker [58 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 3100.37ms Time]
[2021-11-13 18:33:29,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states.
[2021-11-13 18:33:29,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3204.
[2021-11-13 18:33:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3204 states, 2525 states have (on average 1.7021782178217821) internal successors, (4298), 3174 states have internal predecessors, (4298), 29 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28)
[2021-11-13 18:33:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 4355 transitions.
[2021-11-13 18:33:29,085 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 4355 transitions. Word has length 68
[2021-11-13 18:33:29,085 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:29,085 INFO L470 AbstractCegarLoop]: Abstraction has 3204 states and 4355 transitions.
[2021-11-13 18:33:29,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 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 18:33:29,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 4355 transitions.
[2021-11-13 18:33:29,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2021-11-13 18:33:29,086 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:29,086 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]
[2021-11-13 18:33:29,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0
[2021-11-13 18:33:29,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:29,308 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr396REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:29,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:29,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1276874355, now seen corresponding path program 1 times
[2021-11-13 18:33:29,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:29,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222752159]
[2021-11-13 18:33:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:29,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:29,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:29,310 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:29,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process
[2021-11-13 18:33:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:29,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:33:29,591 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:29,690 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 18:33:29,703 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 18:33:29,735 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 18:33:29,747 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 18:33:29,748 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:29,850 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 18:33:29,851 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:29,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222752159]
[2021-11-13 18:33:29,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222752159] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:29,851 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:29,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:33:29,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461882972]
[2021-11-13 18:33:29,851 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:29,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:33:29,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:29,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:33:29,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:33:29,852 INFO L87 Difference]: Start difference. First operand 3204 states and 4355 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 18:33:34,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:34,508 INFO L93 Difference]: Finished difference Result 3203 states and 4352 transitions.
[2021-11-13 18:33:34,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:33:34,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 71
[2021-11-13 18:33:34,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:34,512 INFO L225 Difference]: With dead ends: 3203
[2021-11-13 18:33:34,512 INFO L226 Difference]: Without dead ends: 3203
[2021-11-13 18:33:34,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 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 18:33:34,513 INFO L933 BasicCegarLoop]: 1728 mSDtfsCounter, 4 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3932.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.13ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4573.67ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:34,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4617 Invalid, 2301 Unknown, 0 Unchecked, 13.13ms Time], IncrementalHoareTripleChecker [1 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 4573.67ms Time]
[2021-11-13 18:33:34,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states.
[2021-11-13 18:33:34,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3203.
[2021-11-13 18:33:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 2525 states have (on average 1.700990099009901) internal successors, (4295), 3173 states have internal predecessors, (4295), 29 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28)
[2021-11-13 18:33:34,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4352 transitions.
[2021-11-13 18:33:34,559 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4352 transitions. Word has length 71
[2021-11-13 18:33:34,559 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:34,559 INFO L470 AbstractCegarLoop]: Abstraction has 3203 states and 4352 transitions.
[2021-11-13 18:33:34,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 18:33:34,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4352 transitions.
[2021-11-13 18:33:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2021-11-13 18:33:34,561 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:34,561 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]
[2021-11-13 18:33:34,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:34,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:34,775 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr397REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:34,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:34,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1276874354, now seen corresponding path program 1 times
[2021-11-13 18:33:34,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:34,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129777211]
[2021-11-13 18:33:34,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:34,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:34,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:34,777 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:34,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process
[2021-11-13 18:33:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:35,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:33:35,042 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:35,183 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 18:33:35,200 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 18:33:35,207 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 18:33:35,270 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 18:33:35,273 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 18:33:35,294 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 18:33:35,294 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:35,580 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 18:33:35,580 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:35,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129777211]
[2021-11-13 18:33:35,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129777211] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:35,580 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:35,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-11-13 18:33:35,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302653515]
[2021-11-13 18:33:35,581 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:35,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-13 18:33:35,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:35,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-13 18:33:35,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:33:35,582 INFO L87 Difference]: Start difference. First operand 3203 states and 4352 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 18:33:50,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:50,961 INFO L93 Difference]: Finished difference Result 3202 states and 4349 transitions.
[2021-11-13 18:33:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:33:50,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 71
[2021-11-13 18:33:50,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:50,965 INFO L225 Difference]: With dead ends: 3202
[2021-11-13 18:33:50,965 INFO L226 Difference]: Without dead ends: 3202
[2021-11-13 18:33:50,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 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 18:33:50,966 INFO L933 BasicCegarLoop]: 1728 mSDtfsCounter, 2 mSDsluCounter, 4760 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13613.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6488 SdHoareTripleChecker+Invalid, 3884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.29ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15242.54ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:50,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6488 Invalid, 3884 Unknown, 0 Unchecked, 24.29ms Time], IncrementalHoareTripleChecker [2 Valid, 3882 Invalid, 0 Unknown, 0 Unchecked, 15242.54ms Time]
[2021-11-13 18:33:50,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states.
[2021-11-13 18:33:50,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 3202.
[2021-11-13 18:33:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3202 states, 2522 states have (on average 1.7018239492466296) internal successors, (4292), 3172 states have internal predecessors, (4292), 29 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28)
[2021-11-13 18:33:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3202 states to 3202 states and 4349 transitions.
[2021-11-13 18:33:51,005 INFO L78 Accepts]: Start accepts. Automaton has 3202 states and 4349 transitions. Word has length 71
[2021-11-13 18:33:51,005 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:51,005 INFO L470 AbstractCegarLoop]: Abstraction has 3202 states and 4349 transitions.
[2021-11-13 18:33:51,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 18:33:51,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3202 states and 4349 transitions.
[2021-11-13 18:33:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2021-11-13 18:33:51,006 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:51,006 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]
[2021-11-13 18:33:51,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0
[2021-11-13 18:33:51,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:51,206 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr78REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:51,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:51,207 INFO L85 PathProgramCache]: Analyzing trace with hash 536136993, now seen corresponding path program 1 times
[2021-11-13 18:33:51,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:51,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235131055]
[2021-11-13 18:33:51,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:51,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:51,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:51,208 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:51,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process
[2021-11-13 18:33:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:51,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:33:51,494 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:51,591 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 18:33:51,602 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 23 treesize of output 19
[2021-11-13 18:33:51,632 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 25 treesize of output 13
[2021-11-13 18:33:51,643 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 18:33:51,643 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:51,758 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 18:33:51,758 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:51,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235131055]
[2021-11-13 18:33:51,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235131055] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:51,758 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:51,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-13 18:33:51,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114695736]
[2021-11-13 18:33:51,759 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:51,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:33:51,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:33:51,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:33:51,759 INFO L87 Difference]: Start difference. First operand 3202 states and 4349 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 18:33:56,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:33:56,371 INFO L93 Difference]: Finished difference Result 3201 states and 4347 transitions.
[2021-11-13 18:33:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:33:56,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 71
[2021-11-13 18:33:56,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:33:56,376 INFO L225 Difference]: With dead ends: 3201
[2021-11-13 18:33:56,376 INFO L226 Difference]: Without dead ends: 3201
[2021-11-13 18:33:56,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:33:56,377 INFO L933 BasicCegarLoop]: 1726 mSDtfsCounter, 4 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3900.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4612 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.42ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4529.73ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:33:56,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4612 Invalid, 2298 Unknown, 0 Unchecked, 13.42ms Time], IncrementalHoareTripleChecker [1 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 4529.73ms Time]
[2021-11-13 18:33:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states.
[2021-11-13 18:33:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3201.
[2021-11-13 18:33:56,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 2522 states have (on average 1.7010309278350515) internal successors, (4290), 3171 states have internal predecessors, (4290), 29 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28)
[2021-11-13 18:33:56,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4347 transitions.
[2021-11-13 18:33:56,421 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4347 transitions. Word has length 71
[2021-11-13 18:33:56,422 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:33:56,422 INFO L470 AbstractCegarLoop]: Abstraction has 3201 states and 4347 transitions.
[2021-11-13 18:33:56,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 18:33:56,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4347 transitions.
[2021-11-13 18:33:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2021-11-13 18:33:56,423 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:33:56,423 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]
[2021-11-13 18:33:56,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0
[2021-11-13 18:33:56,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:33:56,637 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr79REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:33:56,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:33:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 536136994, now seen corresponding path program 1 times
[2021-11-13 18:33:56,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:33:56,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824857641]
[2021-11-13 18:33:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:33:56,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:33:56,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:33:56,641 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:33:56,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process
[2021-11-13 18:33:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:33:56,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:33:56,908 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:33:57,028 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 18:33:57,045 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 18:33:57,069 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 18:33:57,135 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 18:33:57,142 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 18:33:57,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:33:57,161 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:33:57,430 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 18:33:57,430 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:33:57,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824857641]
[2021-11-13 18:33:57,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824857641] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:33:57,430 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:33:57,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-11-13 18:33:57,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773892329]
[2021-11-13 18:33:57,430 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:33:57,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-13 18:33:57,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:33:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-13 18:33:57,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:33:57,432 INFO L87 Difference]: Start difference. First operand 3201 states and 4347 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 18:34:10,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:10,759 INFO L93 Difference]: Finished difference Result 3200 states and 4345 transitions.
[2021-11-13 18:34:10,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:34:10,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 71
[2021-11-13 18:34:10,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:10,763 INFO L225 Difference]: With dead ends: 3200
[2021-11-13 18:34:10,763 INFO L226 Difference]: Without dead ends: 3200
[2021-11-13 18:34:10,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 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 18:34:10,764 INFO L933 BasicCegarLoop]: 1726 mSDtfsCounter, 4 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11895.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4581 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.01ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13204.85ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:10,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4581 Invalid, 2328 Unknown, 0 Unchecked, 17.01ms Time], IncrementalHoareTripleChecker [2 Valid, 2326 Invalid, 0 Unknown, 0 Unchecked, 13204.85ms Time]
[2021-11-13 18:34:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states.
[2021-11-13 18:34:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 3200.
[2021-11-13 18:34:10,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 2520 states have (on average 1.7015873015873015) internal successors, (4288), 3170 states have internal predecessors, (4288), 29 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28)
[2021-11-13 18:34:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 4345 transitions.
[2021-11-13 18:34:10,816 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 4345 transitions. Word has length 71
[2021-11-13 18:34:10,816 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:10,816 INFO L470 AbstractCegarLoop]: Abstraction has 3200 states and 4345 transitions.
[2021-11-13 18:34:10,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 18:34:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 4345 transitions.
[2021-11-13 18:34:10,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2021-11-13 18:34:10,817 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:10,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:34:10,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:11,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:11,018 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr400REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:34:11,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:11,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1561418388, now seen corresponding path program 1 times
[2021-11-13 18:34:11,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:11,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829940069]
[2021-11-13 18:34:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:34:11,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:11,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:11,020 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:11,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process
[2021-11-13 18:34:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:34:11,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:34:11,323 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:11,439 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 18:34:11,439 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:34:11,578 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 18:34:11,579 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:34:11,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829940069]
[2021-11-13 18:34:11,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829940069] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:34:11,579 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:34:11,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-13 18:34:11,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791194999]
[2021-11-13 18:34:11,579 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:34:11,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:34:11,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:34:11,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:34:11,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:34:11,580 INFO L87 Difference]: Start difference. First operand 3200 states and 4345 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 18:34:11,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:11,721 INFO L93 Difference]: Finished difference Result 3210 states and 4361 transitions.
[2021-11-13 18:34:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:34:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 18:34:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:11,734 INFO L225 Difference]: With dead ends: 3210
[2021-11-13 18:34:11,734 INFO L226 Difference]: Without dead ends: 3210
[2021-11-13 18:34:11,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:34:11,735 INFO L933 BasicCegarLoop]: 1724 mSDtfsCounter, 9 mSDsluCounter, 5153 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6877 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.37ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.37ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:11,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 6877 Invalid, 58 Unknown, 0 Unchecked, 4.37ms Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 102.37ms Time]
[2021-11-13 18:34:11,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states.
[2021-11-13 18:34:11,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 3210.
[2021-11-13 18:34:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2528 states have (on average 1.7009493670886076) internal successors, (4300), 3179 states have internal predecessors, (4300), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (32), 25 states have call predecessors, (32), 28 states have call successors, (32)
[2021-11-13 18:34:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4361 transitions.
[2021-11-13 18:34:11,793 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4361 transitions. Word has length 79
[2021-11-13 18:34:11,793 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:11,793 INFO L470 AbstractCegarLoop]: Abstraction has 3210 states and 4361 transitions.
[2021-11-13 18:34:11,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 18:34:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4361 transitions.
[2021-11-13 18:34:11,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2021-11-13 18:34:11,794 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:11,794 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, 1, 1]
[2021-11-13 18:34:11,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:11,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:11,994 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr400REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:34:11,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:11,995 INFO L85 PathProgramCache]: Analyzing trace with hash -517599724, now seen corresponding path program 1 times
[2021-11-13 18:34:11,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:11,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361052335]
[2021-11-13 18:34:11,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:34:11,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:11,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:11,996 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:11,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process
[2021-11-13 18:34:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:34:12,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:34:12,270 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:12,407 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 18:34:12,407 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:34:12,660 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 18:34:12,660 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:34:12,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361052335]
[2021-11-13 18:34:12,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361052335] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:34:12,660 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:34:12,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2021-11-13 18:34:12,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159328037]
[2021-11-13 18:34:12,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:34:12,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 18:34:12,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:34:12,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 18:34:12,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:34:12,662 INFO L87 Difference]: Start difference. First operand 3210 states and 4361 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 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 18:34:13,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:34:13,095 INFO L93 Difference]: Finished difference Result 3224 states and 4385 transitions.
[2021-11-13 18:34:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-11-13 18:34:13,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 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 81
[2021-11-13 18:34:13,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:34:13,105 INFO L225 Difference]: With dead ends: 3224
[2021-11-13 18:34:13,105 INFO L226 Difference]: Without dead ends: 3220
[2021-11-13 18:34:13,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306
[2021-11-13 18:34:13,106 INFO L933 BasicCegarLoop]: 1726 mSDtfsCounter, 24 mSDsluCounter, 6883 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 205.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8609 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.16ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 246.47ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:34:13,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 8609 Invalid, 141 Unknown, 0 Unchecked, 6.16ms Time], IncrementalHoareTripleChecker [27 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 246.47ms Time]
[2021-11-13 18:34:13,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states.
[2021-11-13 18:34:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3216.
[2021-11-13 18:34:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2534 states have (on average 1.7000789265982637) internal successors, (4308), 3185 states have internal predecessors, (4308), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (32), 25 states have call predecessors, (32), 28 states have call successors, (32)
[2021-11-13 18:34:13,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4369 transitions.
[2021-11-13 18:34:13,153 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4369 transitions. Word has length 81
[2021-11-13 18:34:13,154 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:34:13,154 INFO L470 AbstractCegarLoop]: Abstraction has 3216 states and 4369 transitions.
[2021-11-13 18:34:13,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 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 18:34:13,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4369 transitions.
[2021-11-13 18:34:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2021-11-13 18:34:13,155 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:34:13,155 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, 1, 1]
[2021-11-13 18:34:13,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0
[2021-11-13 18:34:13,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:34:13,369 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr400REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 986 more)] ===
[2021-11-13 18:34:13,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:34:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash -294988524, now seen corresponding path program 2 times
[2021-11-13 18:34:13,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:34:13,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457098778]
[2021-11-13 18:34:13,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 18:34:13,371 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:34:13,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:34:13,371 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:34:13,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af92e43a-bc4e-43f3-9162-a75d02345cc8/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process
[2021-11-13 18:34:13,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2021-11-13 18:34:13,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:34:13,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:34:13,793 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:34:13,803 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 18:34:13,818 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:34:13,819 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:34:13,819 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-11-13 18:34:13,880 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size
[2021-11-13 18:34:13,881 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 18:34:13,978 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2021-11-13 18:34:13,978 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 17 treesize of output 17
[2021-11-13 18:34:14,226 INFO L354 Elim1Store]: treesize reduction 229, result has 11.2 percent of original size
[2021-11-13 18:34:14,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 66 treesize of output 86
[2021-11-13 18:34:19,519 INFO L354 Elim1Store]: treesize reduction 1963, result has 5.1 percent of original size
[2021-11-13 18:34:19,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 118 treesize of output 150
[2021-11-13 18:34:29,278 INFO L354 Elim1Store]: treesize reduction 876, result has 0.1 percent of original size
[2021-11-13 18:34:29,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 157 treesize of output 67
[2021-11-13 18:34:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2021-11-13 18:34:29,444 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:34:32,639 WARN L838 $PredicateComparison]: unable to prove that (forall ((|main_#t~mem11| (_ BitVec 32)) (|main_#t~mem12| (_ BitVec 32)) (main_~user~0.offset (_ BitVec 32)) (|main_#t~mem13| (_ BitVec 32))) (bvslt (let ((.cse0 (select (store |c_#memory_int| c_main_~user~0.base (let ((.cse1 (bvmul |main_#t~mem12| |main_#t~mem13|))) (store (store (store (store (store (store (store (store (select |c_#memory_int| c_main_~user~0.base) main_~user~0.offset ((_ extract 7 0) |main_#t~mem11|)) (bvadd main_~user~0.offset (_ bv1 32)) ((_ extract 15 8) |main_#t~mem11|)) (bvadd (_ bv2 32) main_~user~0.offset) ((_ extract 23 16) |main_#t~mem11|)) (bvadd (_ bv3 32) main_~user~0.offset) ((_ extract 31 24) |main_#t~mem11|)) (bvadd (_ bv4 32) main_~user~0.offset) ((_ extract 7 0) .cse1)) (bvadd main_~user~0.offset (_ bv5 32)) ((_ extract 15 8) .cse1)) (bvadd (_ bv6 32) main_~user~0.offset) ((_ extract 23 16) .cse1)) (bvadd main_~user~0.offset (_ bv7 32)) ((_ extract 31 24) .cse1)))) |c_main_~#i~0.base|))) (concat (concat (concat (select .cse0 (bvadd (_ bv3 32) |c_main_~#i~0.offset|)) (select .cse0 (bvadd (_ bv2 32) |c_main_~#i~0.offset|))) (select .cse0 (bvadd |c_main_~#i~0.offset| (_ bv1 32)))) (select .cse0 |c_main_~#i~0.offset|))) (_ bv10 32))) is different from false