./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/UpAndDown.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/UpAndDown.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971
..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(TERM)
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 23:52:57,117 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:52:57,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:52:57,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:52:57,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:52:57,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:52:57,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:52:57,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:52:57,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:52:57,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:52:57,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:52:57,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:52:57,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:52:57,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:52:57,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:52:57,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:52:57,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:52:57,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:52:57,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:52:57,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:52:57,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:52:57,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:52:57,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:52:57,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:52:57,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:52:57,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:52:57,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:52:57,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:52:57,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:52:57,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:52:57,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:52:57,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:52:57,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:52:57,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:52:57,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:52:57,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:52:57,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:52:57,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:52:57,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:52:57,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:52:57,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:52:57,265 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf
[2021-10-28 23:52:57,313 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:52:57,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:52:57,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:52:57,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:52:57,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:52:57,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:52:57,316 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:52:57,317 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-10-28 23:52:57,317 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2021-10-28 23:52:57,317 INFO L138 SettingsManager]: * Use old map elimination=false
[2021-10-28 23:52:57,318 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2021-10-28 23:52:57,318 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2021-10-28 23:52:57,318 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2021-10-28 23:52:57,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:52:57,319 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-10-28 23:52:57,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:52:57,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:52:57,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2021-10-28 23:52:57,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-10-28 23:52:57,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2021-10-28 23:52:57,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 23:52:57,321 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2021-10-28 23:52:57,321 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:52:57,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2021-10-28 23:52:57,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:52:57,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:52:57,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:52:57,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:52:57,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:52:57,325 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-10-28 23:52:57,325 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
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_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971
[2021-10-28 23:52:57,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:52:57,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:52:57,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:52:57,653 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:52:57,654 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:52:57,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-restricted-15/UpAndDown.c
[2021-10-28 23:52:57,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/data/d14172be7/99dab4906350423d908bcbd1442fe82b/FLAG8ff08e15b
[2021-10-28 23:52:58,347 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:52:58,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/sv-benchmarks/c/termination-restricted-15/UpAndDown.c
[2021-10-28 23:52:58,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/data/d14172be7/99dab4906350423d908bcbd1442fe82b/FLAG8ff08e15b
[2021-10-28 23:52:58,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/data/d14172be7/99dab4906350423d908bcbd1442fe82b
[2021-10-28 23:52:58,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:52:58,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 23:52:58,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:52:58,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:52:58,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:52:58,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:58,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8cd45a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58, skipping insertion in model container
[2021-10-28 23:52:58,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:58,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:52:58,784 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:52:58,925 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:52:58,934 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:52:58,974 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:52:58,992 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:52:58,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58 WrapperNode
[2021-10-28 23:52:58,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:52:58,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 23:52:58,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 23:52:58,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 23:52:59,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 23:52:59,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:52:59,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:52:59,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:52:59,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:52:59,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:52:59,084 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:52:59,085 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:52:59,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (1/1) ...
[2021-10-28 23:52:59,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:52:59,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:52:59,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:52:59,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:52:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:52:59,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:52:59,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:52:59,415 INFO L299 CfgBuilder]: Removed 5 assume(true) statements.
[2021-10-28 23:52:59,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:59 BoogieIcfgContainer
[2021-10-28 23:52:59,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:52:59,419 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-10-28 23:52:59,419 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2021-10-28 23:52:59,422 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2021-10-28 23:52:59,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 23:52:59,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:52:58" (1/3) ...
[2021-10-28 23:52:59,425 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74d1eec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:52:59, skipping insertion in model container
[2021-10-28 23:52:59,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 23:52:59,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:58" (2/3) ...
[2021-10-28 23:52:59,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74d1eec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:52:59, skipping insertion in model container
[2021-10-28 23:52:59,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 23:52:59,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:59" (3/3) ...
[2021-10-28 23:52:59,428 INFO L389 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c
[2021-10-28 23:52:59,486 INFO L359 BuchiCegarLoop]: Interprodecural is true
[2021-10-28 23:52:59,486 INFO L360 BuchiCegarLoop]: Hoare is false
[2021-10-28 23:52:59,486 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-10-28 23:52:59,487 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-28 23:52:59,487 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-28 23:52:59,487 INFO L364 BuchiCegarLoop]: Difference is false
[2021-10-28 23:52:59,487 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-28 23:52:59,487 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-10-28 23:52:59,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:52:59,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2021-10-28 23:52:59,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:52:59,529 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:52:59,536 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1]
[2021-10-28 23:52:59,537 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:52:59,537 INFO L425 BuchiCegarLoop]: ======== Iteration 1============
[2021-10-28 23:52:59,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:52:59,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2021-10-28 23:52:59,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:52:59,540 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:52:59,540 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1]
[2021-10-28 23:52:59,541 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:52:59,549 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 6#L18-1true
[2021-10-28 23:52:59,549 INFO L793 eck$LassoCheckResult]: Loop: 6#L18-1true assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10#L12true assume 10 == main_~i~0;main_~up~0 := 0; 3#L12-2true assume 0 == main_~i~0;main_~up~0 := 1; 8#L15-1true assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6#L18-1true
[2021-10-28 23:52:59,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:52:59,569 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times
[2021-10-28 23:52:59,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:52:59,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270502233]
[2021-10-28 23:52:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:52:59,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:52:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:52:59,667 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:52:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:52:59,690 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:52:59,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:52:59,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1234538, now seen corresponding path program 1 times
[2021-10-28 23:52:59,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:52:59,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192880333]
[2021-10-28 23:52:59,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:52:59,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:52:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:52:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:52:59,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:52:59,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192880333]
[2021-10-28 23:52:59,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192880333] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:52:59,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:52:59,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:52:59,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706264033]
[2021-10-28 23:52:59,789 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:52:59,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:52:59,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:52:59,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:52:59,813 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:52:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:52:59,862 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions.
[2021-10-28 23:52:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:52:59,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions.
[2021-10-28 23:52:59,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2021-10-28 23:52:59,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 9 states and 14 transitions.
[2021-10-28 23:52:59,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9
[2021-10-28 23:52:59,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9
[2021-10-28 23:52:59,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 14 transitions.
[2021-10-28 23:52:59,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-28 23:52:59,878 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions.
[2021-10-28 23:52:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 14 transitions.
[2021-10-28 23:52:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2021-10-28 23:52:59,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:52:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions.
[2021-10-28 23:52:59,912 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions.
[2021-10-28 23:52:59,913 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions.
[2021-10-28 23:52:59,913 INFO L425 BuchiCegarLoop]: ======== Iteration 2============
[2021-10-28 23:52:59,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions.
[2021-10-28 23:52:59,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2021-10-28 23:52:59,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:52:59,915 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:52:59,915 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1]
[2021-10-28 23:52:59,916 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:52:59,916 INFO L791 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 38#L18-1
[2021-10-28 23:52:59,916 INFO L793 eck$LassoCheckResult]: Loop: 38#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 43#L12 assume 10 == main_~i~0;main_~up~0 := 0; 35#L12-2 assume !(0 == main_~i~0); 36#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 38#L18-1
[2021-10-28 23:52:59,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:52:59,917 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times
[2021-10-28 23:52:59,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:52:59,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930298313]
[2021-10-28 23:52:59,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:52:59,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:52:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:52:59,946 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:52:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:52:59,951 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:52:59,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:52:59,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1234602, now seen corresponding path program 1 times
[2021-10-28 23:52:59,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:52:59,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163978684]
[2021-10-28 23:52:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:52:59,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:52:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:52:59,965 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:52:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:52:59,974 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:52:59,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:52:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash 29863753, now seen corresponding path program 1 times
[2021-10-28 23:52:59,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:52:59,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596020680]
[2021-10-28 23:52:59,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:52:59,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:52:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:00,005 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:00,014 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:00,109 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:00,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:00,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:00,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:00,120 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:00,121 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,121 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:00,121 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:00,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop
[2021-10-28 23:53:00,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:00,122 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:00,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:00,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:00,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:00,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:00,302 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:00,303 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:00,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:00,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:00,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2021-10-28 23:53:00,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:00,313 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:00,342 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:00,342 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:00,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:00,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:00,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:00,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2021-10-28 23:53:00,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:00,387 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:00,404 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:00,404 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:00,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0
[2021-10-28 23:53:00,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:00,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:00,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2021-10-28 23:53:00,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:00,438 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:00,466 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:00,467 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:00,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:00,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:00,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:00,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:00,529 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:00,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2021-10-28 23:53:00,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:00,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:00,573 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:00,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:00,606 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:00,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2021-10-28 23:53:00,641 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:00,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:00,682 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:00,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:00,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:00,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:00,683 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:00,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:00,684 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:00,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop
[2021-10-28 23:53:00,684 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:00,684 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:00,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:00,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:00,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:00,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:00,804 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:00,810 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:00,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:00,813 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:00,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:00,834 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:00,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:00,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:00,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:00,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:00,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:00,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2021-10-28 23:53:00,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:00,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:00,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:00,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:00,917 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:00,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2021-10-28 23:53:00,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:00,935 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:00,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:00,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:00,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:00,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:00,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:00,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:01,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:01,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:01,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:01,022 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:01,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:01,042 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:01,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:01,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:01,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:01,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:01,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:01,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:01,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2021-10-28 23:53:01,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:01,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:01,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:01,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:01,111 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:01,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2021-10-28 23:53:01,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:01,126 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:01,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:01,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:01,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:01,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:01,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:01,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:01,157 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:01,172 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:01,172 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 23:53:01,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:01,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:01,193 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:01,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2021-10-28 23:53:01,206 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:01,206 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:01,206 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:01,207 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0
Supporting invariants []
[2021-10-28 23:53:01,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:01,235 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:01,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:01,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:01,270 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:01,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:01,283 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:01,345 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 23:53:01,346 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:01,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 37 transitions. Complement of second has 7 states.
[2021-10-28 23:53:01,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:01,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:01,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions.
[2021-10-28 23:53:01,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 4 letters.
[2021-10-28 23:53:01,416 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:01,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 4 letters.
[2021-10-28 23:53:01,420 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:01,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 8 letters.
[2021-10-28 23:53:01,420 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:01,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 37 transitions.
[2021-10-28 23:53:01,423 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12
[2021-10-28 23:53:01,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 37 transitions.
[2021-10-28 23:53:01,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16
[2021-10-28 23:53:01,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17
[2021-10-28 23:53:01,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 37 transitions.
[2021-10-28 23:53:01,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:01,431 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions.
[2021-10-28 23:53:01,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 37 transitions.
[2021-10-28 23:53:01,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23.
[2021-10-28 23:53:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 22 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions.
[2021-10-28 23:53:01,440 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions.
[2021-10-28 23:53:01,440 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions.
[2021-10-28 23:53:01,440 INFO L425 BuchiCegarLoop]: ======== Iteration 3============
[2021-10-28 23:53:01,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 35 transitions.
[2021-10-28 23:53:01,443 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12
[2021-10-28 23:53:01,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:01,444 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:01,445 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-28 23:53:01,445 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:53:01,445 INFO L791 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 116#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 112#L12
[2021-10-28 23:53:01,446 INFO L793 eck$LassoCheckResult]: Loop: 112#L12 assume !(10 == main_~i~0); 119#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 122#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 111#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 112#L12
[2021-10-28 23:53:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:01,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times
[2021-10-28 23:53:01,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:01,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466305075]
[2021-10-28 23:53:01,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:01,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:01,463 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:01,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:01,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:01,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1389492, now seen corresponding path program 1 times
[2021-10-28 23:53:01,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:01,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916514092]
[2021-10-28 23:53:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:01,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:01,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:01,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916514092]
[2021-10-28 23:53:01,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916514092] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:53:01,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:53:01,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:53:01,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906021797]
[2021-10-28 23:53:01,514 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:01,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:01,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:53:01,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:53:01,515 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:01,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:01,529 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions.
[2021-10-28 23:53:01,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:53:01,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 44 transitions.
[2021-10-28 23:53:01,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18
[2021-10-28 23:53:01,533 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 43 transitions.
[2021-10-28 23:53:01,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23
[2021-10-28 23:53:01,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23
[2021-10-28 23:53:01,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 43 transitions.
[2021-10-28 23:53:01,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:01,534 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 43 transitions.
[2021-10-28 23:53:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 43 transitions.
[2021-10-28 23:53:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27.
[2021-10-28 23:53:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions.
[2021-10-28 23:53:01,540 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions.
[2021-10-28 23:53:01,540 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions.
[2021-10-28 23:53:01,540 INFO L425 BuchiCegarLoop]: ======== Iteration 4============
[2021-10-28 23:53:01,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 40 transitions.
[2021-10-28 23:53:01,548 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18
[2021-10-28 23:53:01,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:01,548 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:01,549 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-28 23:53:01,549 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:53:01,549 INFO L791 eck$LassoCheckResult]: Stem: 171#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 172#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 179#L12
[2021-10-28 23:53:01,549 INFO L793 eck$LassoCheckResult]: Loop: 179#L12 assume !(10 == main_~i~0); 180#L12-2 assume !(0 == main_~i~0); 188#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 187#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 179#L12
[2021-10-28 23:53:01,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:01,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 2 times
[2021-10-28 23:53:01,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:01,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356703302]
[2021-10-28 23:53:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:01,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:01,571 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:01,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:01,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:01,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1391414, now seen corresponding path program 1 times
[2021-10-28 23:53:01,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:01,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123235807]
[2021-10-28 23:53:01,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:01,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:01,584 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:01,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:01,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:01,590 INFO L85 PathProgramCache]: Analyzing trace with hash 925835935, now seen corresponding path program 1 times
[2021-10-28 23:53:01,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:01,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376561857]
[2021-10-28 23:53:01,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:01,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:01,599 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:01,607 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:01,679 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:01,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:01,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:01,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:01,679 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:01,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:01,679 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:01,679 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:01,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop
[2021-10-28 23:53:01,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:01,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:01,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:01,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:01,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:01,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:01,832 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:01,832 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:01,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:01,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:01,854 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:01,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:01,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2021-10-28 23:53:01,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:01,872 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:01,906 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:01,906 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:01,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:01,979 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:01,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:01,980 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:01,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2021-10-28 23:53:01,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:01,987 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:02,010 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:02,010 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:02,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:02,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:02,052 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:02,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2021-10-28 23:53:02,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:02,057 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:02,075 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:02,075 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=4} Honda state: {ULTIMATE.start_main_~up~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:02,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:02,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:02,102 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:02,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2021-10-28 23:53:02,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:02,107 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:02,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:02,145 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:02,146 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:02,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2021-10-28 23:53:02,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:02,149 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:02,293 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:02,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:02,299 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:02,299 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:02,299 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:02,299 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:02,299 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:02,299 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,299 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:02,300 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:02,300 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop
[2021-10-28 23:53:02,300 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:02,300 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:02,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:02,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:02,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:02,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:02,434 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:02,435 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:02,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:02,436 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:02,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:02,462 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:02,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:02,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:02,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:02,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:02,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:02,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2021-10-28 23:53:02,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:02,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:02,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:02,526 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:02,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:02,543 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:02,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:02,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:02,544 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 23:53:02,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:02,545 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 23:53:02,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:02,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2021-10-28 23:53:02,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:02,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:02,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:02,615 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:02,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2021-10-28 23:53:02,622 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:02,633 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:02,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:02,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:02,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:02,637 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:02,638 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:02,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:02,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:02,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:02,695 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:02,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:02,722 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:02,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:02,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:02,722 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 23:53:02,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:02,725 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 23:53:02,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:02,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2021-10-28 23:53:02,761 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:02,767 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:02,768 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 23:53:02,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:02,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:02,769 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:02,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2021-10-28 23:53:02,790 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:02,790 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:02,790 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:02,791 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0
Supporting invariants []
[2021-10-28 23:53:02,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:02,833 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:02,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:02,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:02,863 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:02,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:02,890 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:02,953 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 23:53:02,954 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:02,986 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 59 transitions. Complement of second has 7 states.
[2021-10-28 23:53:02,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:02,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions.
[2021-10-28 23:53:02,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters.
[2021-10-28 23:53:02,988 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:02,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters.
[2021-10-28 23:53:02,988 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:02,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters.
[2021-10-28 23:53:02,989 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:02,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 59 transitions.
[2021-10-28 23:53:02,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14
[2021-10-28 23:53:02,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 33 states and 48 transitions.
[2021-10-28 23:53:02,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20
[2021-10-28 23:53:02,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22
[2021-10-28 23:53:02,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 48 transitions.
[2021-10-28 23:53:02,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:02,995 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 48 transitions.
[2021-10-28 23:53:02,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 48 transitions.
[2021-10-28 23:53:02,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28.
[2021-10-28 23:53:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.5) internal successors, (42), 27 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:03,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions.
[2021-10-28 23:53:03,001 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 42 transitions.
[2021-10-28 23:53:03,001 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 42 transitions.
[2021-10-28 23:53:03,002 INFO L425 BuchiCegarLoop]: ======== Iteration 5============
[2021-10-28 23:53:03,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 42 transitions.
[2021-10-28 23:53:03,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14
[2021-10-28 23:53:03,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:03,003 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:03,004 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2021-10-28 23:53:03,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:53:03,004 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 288#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 296#L12 assume 10 == main_~i~0;main_~up~0 := 0; 279#L12-2
[2021-10-28 23:53:03,004 INFO L793 eck$LassoCheckResult]: Loop: 279#L12-2 assume !(0 == main_~i~0); 280#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 283#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 284#L12 assume !(10 == main_~i~0); 279#L12-2
[2021-10-28 23:53:03,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times
[2021-10-28 23:53:03,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:03,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409505826]
[2021-10-28 23:53:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:03,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:03,011 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:03,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:03,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:03,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1573482, now seen corresponding path program 1 times
[2021-10-28 23:53:03,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:03,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293606609]
[2021-10-28 23:53:03,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:03,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:03,025 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:03,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:03,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:03,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1365706036, now seen corresponding path program 1 times
[2021-10-28 23:53:03,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:03,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071759170]
[2021-10-28 23:53:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:03,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:03,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:03,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071759170]
[2021-10-28 23:53:03,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071759170] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:53:03,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:53:03,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:53:03,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721331240]
[2021-10-28 23:53:03,092 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:03,092 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:03,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:03,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:03,093 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:03,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:03,093 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:03,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop
[2021-10-28 23:53:03,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:03,093 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:03,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:03,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:03,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:03,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:03,246 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:03,246 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:03,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:03,248 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:03,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:03,251 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:03,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2021-10-28 23:53:03,278 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:03,278 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=1} Honda state: {ULTIMATE.start_main_~up~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:03,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:03,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:03,324 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:03,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:03,326 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:03,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2021-10-28 23:53:03,347 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:03,347 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:03,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:03,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:03,376 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:03,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2021-10-28 23:53:03,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:03,378 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:03,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0
[2021-10-28 23:53:03,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:03,440 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:03,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:03,443 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:03,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process
[2021-10-28 23:53:03,582 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:03,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:03,585 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:03,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:03,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:03,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:03,585 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:03,586 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,586 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:03,586 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:03,586 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop
[2021-10-28 23:53:03,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:03,586 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:03,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:03,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:03,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:03,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:03,760 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:03,760 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:03,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:03,766 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:03,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:03,782 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:03,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:03,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:03,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:03,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:03,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2021-10-28 23:53:03,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:03,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:03,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:03,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:03,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:03,821 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:03,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2021-10-28 23:53:03,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:03,838 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:03,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:03,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:03,839 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 23:53:03,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:03,842 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 23:53:03,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:03,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:03,852 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:03,852 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:03,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:03,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:03,853 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:03,855 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:03,855 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:03,855 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:03,855 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 17
Supporting invariants []
[2021-10-28 23:53:03,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2021-10-28 23:53:03,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:03,882 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:03,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:03,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:03,915 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:03,936 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-28 23:53:03,936 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:04,007 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2021-10-28 23:53:04,007 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 42 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,105 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 42 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 78 states and 116 transitions. Complement of second has 9 states.
[2021-10-28 23:53:04,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:04,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions.
[2021-10-28 23:53:04,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 3 letters. Loop has 4 letters.
[2021-10-28 23:53:04,107 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:04,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 4 letters.
[2021-10-28 23:53:04,107 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:04,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 3 letters. Loop has 8 letters.
[2021-10-28 23:53:04,108 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:04,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 116 transitions.
[2021-10-28 23:53:04,111 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 31
[2021-10-28 23:53:04,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 77 states and 115 transitions.
[2021-10-28 23:53:04,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37
[2021-10-28 23:53:04,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40
[2021-10-28 23:53:04,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 115 transitions.
[2021-10-28 23:53:04,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:04,114 INFO L681 BuchiCegarLoop]: Abstraction has 77 states and 115 transitions.
[2021-10-28 23:53:04,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 115 transitions.
[2021-10-28 23:53:04,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 63.
[2021-10-28 23:53:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.5555555555555556) internal successors, (98), 62 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 98 transitions.
[2021-10-28 23:53:04,124 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 98 transitions.
[2021-10-28 23:53:04,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:53:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:53:04,125 INFO L87 Difference]: Start difference. First operand 63 states and 98 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:04,132 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions.
[2021-10-28 23:53:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:53:04,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 60 transitions.
[2021-10-28 23:53:04,135 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14
[2021-10-28 23:53:04,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 37 states and 50 transitions.
[2021-10-28 23:53:04,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22
[2021-10-28 23:53:04,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22
[2021-10-28 23:53:04,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions.
[2021-10-28 23:53:04,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:04,137 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions.
[2021-10-28 23:53:04,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions.
[2021-10-28 23:53:04,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 24.
[2021-10-28 23:53:04,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions.
[2021-10-28 23:53:04,140 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions.
[2021-10-28 23:53:04,140 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions.
[2021-10-28 23:53:04,140 INFO L425 BuchiCegarLoop]: ======== Iteration 6============
[2021-10-28 23:53:04,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions.
[2021-10-28 23:53:04,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9
[2021-10-28 23:53:04,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:04,141 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:04,142 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2021-10-28 23:53:04,142 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:53:04,142 INFO L791 eck$LassoCheckResult]: Stem: 550#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 551#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 554#L12 assume !(10 == main_~i~0); 553#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 559#L15-1
[2021-10-28 23:53:04,142 INFO L793 eck$LassoCheckResult]: Loop: 559#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 560#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 565#L12 assume !(10 == main_~i~0); 564#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 559#L15-1
[2021-10-28 23:53:04,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:04,143 INFO L85 PathProgramCache]: Analyzing trace with hash 963406, now seen corresponding path program 1 times
[2021-10-28 23:53:04,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:04,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703472134]
[2021-10-28 23:53:04,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:04,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,153 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:04,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:04,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1678390, now seen corresponding path program 1 times
[2021-10-28 23:53:04,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:04,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258256880]
[2021-10-28 23:53:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:04,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,197 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,209 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash 668197123, now seen corresponding path program 1 times
[2021-10-28 23:53:04,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:04,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657206092]
[2021-10-28 23:53:04,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:04,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:04,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:04,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:04,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657206092]
[2021-10-28 23:53:04,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657206092] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:53:04,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:53:04,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:53:04,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819401089]
[2021-10-28 23:53:04,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:04,331 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:04,331 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:04,331 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:04,331 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:04,331 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:04,331 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:04,331 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:04,331 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:04,331 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop
[2021-10-28 23:53:04,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:04,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:04,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,393 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:04,393 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:04,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:04,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:04,397 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:04,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:04,406 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:04,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2021-10-28 23:53:04,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0
[2021-10-28 23:53:04,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:04,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:04,471 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:04,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:04,473 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:04,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2021-10-28 23:53:04,536 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:04,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:04,539 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:04,539 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:04,539 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:04,539 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:04,539 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:04,539 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:04,539 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:04,539 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:04,539 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop
[2021-10-28 23:53:04,540 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:04,540 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:04,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,627 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:04,627 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:04,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:04,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:04,630 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:04,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:04,649 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:04,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:04,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:04,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:04,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:04,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:04,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:04,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2021-10-28 23:53:04,669 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:04,673 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:04,673 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 23:53:04,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:04,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:04,675 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:04,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:04,677 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:04,677 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:04,677 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0
Supporting invariants []
[2021-10-28 23:53:04,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2021-10-28 23:53:04,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0
[2021-10-28 23:53:04,721 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:04,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:04,745 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:04,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:04,762 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:04,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:04,798 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 23:53:04,798 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,857 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 68 transitions. Complement of second has 7 states.
[2021-10-28 23:53:04,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:04,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions.
[2021-10-28 23:53:04,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 4 letters.
[2021-10-28 23:53:04,859 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:04,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters.
[2021-10-28 23:53:04,860 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:04,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 8 letters.
[2021-10-28 23:53:04,861 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:04,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 68 transitions.
[2021-10-28 23:53:04,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19
[2021-10-28 23:53:04,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 49 states and 65 transitions.
[2021-10-28 23:53:04,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26
[2021-10-28 23:53:04,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27
[2021-10-28 23:53:04,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 65 transitions.
[2021-10-28 23:53:04,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:04,872 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 65 transitions.
[2021-10-28 23:53:04,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 65 transitions.
[2021-10-28 23:53:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44.
[2021-10-28 23:53:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions.
[2021-10-28 23:53:04,881 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions.
[2021-10-28 23:53:04,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:04,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:53:04,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:53:04,883 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:04,905 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions.
[2021-10-28 23:53:04,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:53:04,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions.
[2021-10-28 23:53:04,907 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20
[2021-10-28 23:53:04,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 36 states and 47 transitions.
[2021-10-28 23:53:04,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25
[2021-10-28 23:53:04,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25
[2021-10-28 23:53:04,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 47 transitions.
[2021-10-28 23:53:04,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:04,908 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions.
[2021-10-28 23:53:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 47 transitions.
[2021-10-28 23:53:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24.
[2021-10-28 23:53:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions.
[2021-10-28 23:53:04,912 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions.
[2021-10-28 23:53:04,912 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions.
[2021-10-28 23:53:04,912 INFO L425 BuchiCegarLoop]: ======== Iteration 7============
[2021-10-28 23:53:04,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 32 transitions.
[2021-10-28 23:53:04,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9
[2021-10-28 23:53:04,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:04,913 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:04,913 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2021-10-28 23:53:04,913 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:53:04,913 INFO L791 eck$LassoCheckResult]: Stem: 761#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 762#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 774#L12 assume !(10 == main_~i~0); 772#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 758#L15-1
[2021-10-28 23:53:04,913 INFO L793 eck$LassoCheckResult]: Loop: 758#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 779#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 769#L12 assume !(10 == main_~i~0); 757#L12-2 assume !(0 == main_~i~0); 758#L15-1
[2021-10-28 23:53:04,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:04,914 INFO L85 PathProgramCache]: Analyzing trace with hash 963406, now seen corresponding path program 2 times
[2021-10-28 23:53:04,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:04,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484043535]
[2021-10-28 23:53:04,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:04,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,919 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,924 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:04,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:04,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1678392, now seen corresponding path program 2 times
[2021-10-28 23:53:04,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:04,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509479281]
[2021-10-28 23:53:04,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:04,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,929 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,933 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:04,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash 668197125, now seen corresponding path program 1 times
[2021-10-28 23:53:04,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:04,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659840888]
[2021-10-28 23:53:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:04,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,940 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:04,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:04,980 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:04,981 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:04,981 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:04,981 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:04,981 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:04,981 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:04,981 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:04,981 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:04,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop
[2021-10-28 23:53:04,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:04,982 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:04,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:04,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:05,079 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:05,080 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:05,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,081 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:05,084 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:05,095 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:05,095 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=1} Honda state: {ULTIMATE.start_main_~up~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:05,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:05,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,120 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:05,122 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:05,137 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:05,137 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:05,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:05,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,164 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:05,165 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:05,180 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:05,180 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:05,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0
[2021-10-28 23:53:05,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,204 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:05,206 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:05,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:05,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,293 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:05,298 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:05,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,469 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:05,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:05,475 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:05,475 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:05,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:05,475 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:05,475 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:05,476 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,476 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:05,476 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:05,476 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop
[2021-10-28 23:53:05,476 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:05,476 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:05,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:05,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:05,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:05,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:05,566 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:05,567 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:05,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,568 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:05,589 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:05,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:05,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:05,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:05,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:05,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:05,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:05,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:05,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,649 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:05,669 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:05,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:05,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:05,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:05,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:05,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:05,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:05,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:05,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:05,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,731 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:05,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,742 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:05,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:05,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:05,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:05,744 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:05,744 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:05,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:05,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:05,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,820 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:05,837 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:05,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:05,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:05,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:05,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:05,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:05,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:05,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:05,860 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:05,860 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:05,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:05,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:05,861 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:05,863 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:05,864 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:05,864 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:05,864 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 17
Supporting invariants []
[2021-10-28 23:53:05,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process
[2021-10-28 23:53:05,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:05,909 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:05,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:05,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:05,928 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:05,945 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-28 23:53:05,945 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:06,031 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates
[2021-10-28 23:53:06,031 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:06,089 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 62 transitions. Complement of second has 9 states.
[2021-10-28 23:53:06,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:06,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions.
[2021-10-28 23:53:06,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 4 letters.
[2021-10-28 23:53:06,091 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:06,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 8 letters. Loop has 4 letters.
[2021-10-28 23:53:06,091 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:06,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 8 letters.
[2021-10-28 23:53:06,092 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:06,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 62 transitions.
[2021-10-28 23:53:06,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17
[2021-10-28 23:53:06,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 59 transitions.
[2021-10-28 23:53:06,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24
[2021-10-28 23:53:06,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26
[2021-10-28 23:53:06,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 59 transitions.
[2021-10-28 23:53:06,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:06,094 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 59 transitions.
[2021-10-28 23:53:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 59 transitions.
[2021-10-28 23:53:06,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42.
[2021-10-28 23:53:06,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 41 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:06,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions.
[2021-10-28 23:53:06,099 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 55 transitions.
[2021-10-28 23:53:06,099 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 55 transitions.
[2021-10-28 23:53:06,099 INFO L425 BuchiCegarLoop]: ======== Iteration 8============
[2021-10-28 23:53:06,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 55 transitions.
[2021-10-28 23:53:06,100 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17
[2021-10-28 23:53:06,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:06,101 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:06,101 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2021-10-28 23:53:06,101 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:53:06,102 INFO L791 eck$LassoCheckResult]: Stem: 890#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 891#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 897#L12 assume !(10 == main_~i~0); 902#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 898#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 886#L18-1
[2021-10-28 23:53:06,102 INFO L793 eck$LassoCheckResult]: Loop: 886#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 887#L12 assume 10 == main_~i~0;main_~up~0 := 0; 895#L12-2 assume !(0 == main_~i~0); 892#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 893#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 922#L12 assume !(10 == main_~i~0); 917#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 905#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 886#L18-1
[2021-10-28 23:53:06,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:06,102 INFO L85 PathProgramCache]: Analyzing trace with hash 29865611, now seen corresponding path program 2 times
[2021-10-28 23:53:06,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:06,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096783888]
[2021-10-28 23:53:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:06,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:06,109 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:06,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:06,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2014853141, now seen corresponding path program 1 times
[2021-10-28 23:53:06,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:06,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231892172]
[2021-10-28 23:53:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:06,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:06,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:06,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231892172]
[2021-10-28 23:53:06,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231892172] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:06,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826405947]
[2021-10-28 23:53:06,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:06,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:06,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,149 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:06,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-10-28 23:53:06,189 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:06,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826405947] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:06,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:06,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2021-10-28 23:53:06,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202009384]
[2021-10-28 23:53:06,215 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:06,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:53:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:53:06,216 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. cyclomatic complexity: 18 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:06,246 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions.
[2021-10-28 23:53:06,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:53:06,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 67 transitions.
[2021-10-28 23:53:06,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14
[2021-10-28 23:53:06,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 48 states and 61 transitions.
[2021-10-28 23:53:06,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28
[2021-10-28 23:53:06,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28
[2021-10-28 23:53:06,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions.
[2021-10-28 23:53:06,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:06,250 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 61 transitions.
[2021-10-28 23:53:06,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions.
[2021-10-28 23:53:06,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37.
[2021-10-28 23:53:06,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions.
[2021-10-28 23:53:06,254 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 48 transitions.
[2021-10-28 23:53:06,254 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 48 transitions.
[2021-10-28 23:53:06,254 INFO L425 BuchiCegarLoop]: ======== Iteration 9============
[2021-10-28 23:53:06,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 48 transitions.
[2021-10-28 23:53:06,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13
[2021-10-28 23:53:06,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:06,255 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:06,255 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1]
[2021-10-28 23:53:06,255 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:53:06,256 INFO L791 eck$LassoCheckResult]: Stem: 1014#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 1015#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1027#L12 assume !(10 == main_~i~0); 1024#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 1021#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 1010#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1011#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1019#L12-2
[2021-10-28 23:53:06,256 INFO L793 eck$LassoCheckResult]: Loop: 1019#L12-2 assume !(0 == main_~i~0); 1016#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1017#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1042#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1019#L12-2
[2021-10-28 23:53:06,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:06,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1363918578, now seen corresponding path program 1 times
[2021-10-28 23:53:06,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:06,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836355970]
[2021-10-28 23:53:06,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:06,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:06,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:06,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836355970]
[2021-10-28 23:53:06,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836355970] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:53:06,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:53:06,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:53:06,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700132051]
[2021-10-28 23:53:06,293 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:06,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:06,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1575402, now seen corresponding path program 2 times
[2021-10-28 23:53:06,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:06,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70535686]
[2021-10-28 23:53:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:06,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:06,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:06,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:06,326 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:06,326 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:06,326 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:06,326 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:06,327 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:06,327 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,327 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:06,327 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:06,327 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration9_Loop
[2021-10-28 23:53:06,327 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:06,327 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:06,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:06,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:06,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:06,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:06,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,410 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:06,410 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:06,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,413 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:06,415 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:06,429 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:06,429 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:06,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,452 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:06,454 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:06,468 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:06,468 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:06,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0
[2021-10-28 23:53:06,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,492 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:06,494 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:06,510 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:06,510 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:06,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,533 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:06,535 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:06,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,568 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:06,569 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:06,683 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:06,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,686 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:06,686 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:06,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:06,686 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:06,686 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:06,686 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,686 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:06,686 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:06,686 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration9_Loop
[2021-10-28 23:53:06,686 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:06,687 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:06,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:06,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:06,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:06,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:06,762 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:06,762 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:06,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,763 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:06,782 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:06,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:06,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:06,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:06,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:06,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:06,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:06,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,821 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:06,831 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:06,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:06,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:06,832 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 23:53:06,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:06,833 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 23:53:06,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:06,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:06,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,857 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:06,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,867 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:06,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:06,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:06,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:06,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:06,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:06,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:06,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0
[2021-10-28 23:53:06,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,938 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:06,947 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:06,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:06,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:06,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:06,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:06,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:06,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:06,951 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:06,954 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:06,954 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 23:53:06,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:06,955 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:06,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process
[2021-10-28 23:53:06,957 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:06,957 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:06,957 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:06,957 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0
Supporting invariants []
[2021-10-28 23:53:06,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:06,981 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:06,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:07,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:07,002 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:07,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:07,032 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:07,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:07,069 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 23:53:07,070 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 48 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:07,106 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 48 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 109 transitions. Complement of second has 7 states.
[2021-10-28 23:53:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions.
[2021-10-28 23:53:07,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters.
[2021-10-28 23:53:07,108 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:07,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters.
[2021-10-28 23:53:07,108 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:07,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 8 letters.
[2021-10-28 23:53:07,109 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:07,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 109 transitions.
[2021-10-28 23:53:07,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13
[2021-10-28 23:53:07,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 67 states and 85 transitions.
[2021-10-28 23:53:07,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28
[2021-10-28 23:53:07,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30
[2021-10-28 23:53:07,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 85 transitions.
[2021-10-28 23:53:07,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:07,112 INFO L681 BuchiCegarLoop]: Abstraction has 67 states and 85 transitions.
[2021-10-28 23:53:07,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 85 transitions.
[2021-10-28 23:53:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 60.
[2021-10-28 23:53:07,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 59 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:07,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions.
[2021-10-28 23:53:07,116 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 77 transitions.
[2021-10-28 23:53:07,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:07,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:53:07,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:53:07,117 INFO L87 Difference]: Start difference. First operand 60 states and 77 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:07,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:07,135 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions.
[2021-10-28 23:53:07,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:53:07,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 96 transitions.
[2021-10-28 23:53:07,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18
[2021-10-28 23:53:07,137 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 75 states and 92 transitions.
[2021-10-28 23:53:07,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36
[2021-10-28 23:53:07,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36
[2021-10-28 23:53:07,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 92 transitions.
[2021-10-28 23:53:07,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:07,138 INFO L681 BuchiCegarLoop]: Abstraction has 75 states and 92 transitions.
[2021-10-28 23:53:07,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 92 transitions.
[2021-10-28 23:53:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63.
[2021-10-28 23:53:07,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 62 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:07,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions.
[2021-10-28 23:53:07,143 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 78 transitions.
[2021-10-28 23:53:07,143 INFO L587 BuchiCegarLoop]: Abstraction has 63 states and 78 transitions.
[2021-10-28 23:53:07,143 INFO L425 BuchiCegarLoop]: ======== Iteration 10============
[2021-10-28 23:53:07,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 78 transitions.
[2021-10-28 23:53:07,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16
[2021-10-28 23:53:07,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:07,144 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:07,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 3, 3, 2, 2, 2, 1, 1]
[2021-10-28 23:53:07,145 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2021-10-28 23:53:07,145 INFO L791 eck$LassoCheckResult]: Stem: 1334#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 1335#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1355#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1366#L12-2 assume !(0 == main_~i~0); 1365#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1364#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1363#L12 assume !(10 == main_~i~0); 1353#L12-2 assume !(0 == main_~i~0); 1360#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1361#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1352#L12 assume !(10 == main_~i~0); 1354#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 1336#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 1337#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1386#L12 assume !(10 == main_~i~0); 1327#L12-2 assume !(0 == main_~i~0); 1328#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 1387#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1344#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1345#L12-2
[2021-10-28 23:53:07,146 INFO L793 eck$LassoCheckResult]: Loop: 1345#L12-2 assume !(0 == main_~i~0); 1379#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1378#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1346#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1345#L12-2
[2021-10-28 23:53:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:07,146 INFO L85 PathProgramCache]: Analyzing trace with hash -976997301, now seen corresponding path program 1 times
[2021-10-28 23:53:07,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:07,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092081591]
[2021-10-28 23:53:07,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:07,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:07,183 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-10-28 23:53:07,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:07,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092081591]
[2021-10-28 23:53:07,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092081591] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:07,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944877241]
[2021-10-28 23:53:07,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:07,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:07,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:07,185 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:07,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process
[2021-10-28 23:53:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:07,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:07,249 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-10-28 23:53:07,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944877241] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:07,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:07,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2021-10-28 23:53:07,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129314721]
[2021-10-28 23:53:07,312 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:07,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1575402, now seen corresponding path program 3 times
[2021-10-28 23:53:07,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:07,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111956617]
[2021-10-28 23:53:07,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:07,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:07,317 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:07,321 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:07,356 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:07,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:07,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:07,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:07,357 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:07,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:07,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:07,357 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:07,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop
[2021-10-28 23:53:07,357 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:07,357 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:07,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:07,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:07,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:07,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:07,434 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:07,434 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:07,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:07,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:07,436 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:07,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process
[2021-10-28 23:53:07,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:07,438 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:07,459 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:07,459 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:07,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0
[2021-10-28 23:53:07,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:07,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:07,487 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:07,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process
[2021-10-28 23:53:07,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:07,488 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:07,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0
[2021-10-28 23:53:07,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:07,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:07,522 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:07,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process
[2021-10-28 23:53:07,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:07,526 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:07,651 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:07,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0
[2021-10-28 23:53:07,655 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:07,655 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:07,655 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:07,655 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:07,655 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:07,655 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:07,655 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:07,655 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:07,655 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop
[2021-10-28 23:53:07,655 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:07,655 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:07,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:07,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:07,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:07,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:07,737 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:07,737 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:07,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:07,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:07,738 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:07,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:07,757 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:07,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:07,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:07,757 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 23:53:07,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:07,759 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 23:53:07,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:07,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process
[2021-10-28 23:53:07,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:07,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:07,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:07,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:07,823 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:07,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:07,836 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:07,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:07,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:07,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:07,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:07,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:07,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:07,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process
[2021-10-28 23:53:07,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:07,863 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:07,863 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 23:53:07,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:07,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:07,868 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:07,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:07,870 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:07,870 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:07,870 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0
Supporting invariants []
[2021-10-28 23:53:07,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process
[2021-10-28 23:53:07,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:07,911 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:07,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:07,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:07,934 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:08,014 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:08,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:08,040 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 23:53:08,041 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 78 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,087 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 78 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 89 states and 110 transitions. Complement of second has 7 states.
[2021-10-28 23:53:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions.
[2021-10-28 23:53:08,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 19 letters. Loop has 4 letters.
[2021-10-28 23:53:08,089 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:08,089 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2021-10-28 23:53:08,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:08,115 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:08,185 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:08,205 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 23:53:08,206 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 78 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,275 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 78 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 129 transitions. Complement of second has 7 states.
[2021-10-28 23:53:08,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:08,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions.
[2021-10-28 23:53:08,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 19 letters. Loop has 4 letters.
[2021-10-28 23:53:08,279 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:08,279 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2021-10-28 23:53:08,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:08,311 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:08,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:08,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:08,384 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:08,404 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 23:53:08,404 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 78 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,434 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 78 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 97 states and 122 transitions. Complement of second has 8 states.
[2021-10-28 23:53:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:08,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions.
[2021-10-28 23:53:08,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 19 letters. Loop has 4 letters.
[2021-10-28 23:53:08,436 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:08,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 23 letters. Loop has 4 letters.
[2021-10-28 23:53:08,437 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:08,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 19 letters. Loop has 8 letters.
[2021-10-28 23:53:08,437 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:08,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 122 transitions.
[2021-10-28 23:53:08,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18
[2021-10-28 23:53:08,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 70 states and 86 transitions.
[2021-10-28 23:53:08,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22
[2021-10-28 23:53:08,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25
[2021-10-28 23:53:08,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 86 transitions.
[2021-10-28 23:53:08,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:08,441 INFO L681 BuchiCegarLoop]: Abstraction has 70 states and 86 transitions.
[2021-10-28 23:53:08,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 86 transitions.
[2021-10-28 23:53:08,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 41.
[2021-10-28 23:53:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 40 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions.
[2021-10-28 23:53:08,444 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions.
[2021-10-28 23:53:08,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:08,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 23:53:08,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:53:08,445 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:08,480 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions.
[2021-10-28 23:53:08,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 23:53:08,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 75 transitions.
[2021-10-28 23:53:08,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23
[2021-10-28 23:53:08,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 73 transitions.
[2021-10-28 23:53:08,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18
[2021-10-28 23:53:08,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18
[2021-10-28 23:53:08,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 73 transitions.
[2021-10-28 23:53:08,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:08,485 INFO L681 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions.
[2021-10-28 23:53:08,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 73 transitions.
[2021-10-28 23:53:08,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49.
[2021-10-28 23:53:08,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 48 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions.
[2021-10-28 23:53:08,497 INFO L704 BuchiCegarLoop]: Abstraction has 49 states and 60 transitions.
[2021-10-28 23:53:08,497 INFO L587 BuchiCegarLoop]: Abstraction has 49 states and 60 transitions.
[2021-10-28 23:53:08,497 INFO L425 BuchiCegarLoop]: ======== Iteration 11============
[2021-10-28 23:53:08,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 60 transitions.
[2021-10-28 23:53:08,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21
[2021-10-28 23:53:08,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:08,498 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:08,499 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1]
[2021-10-28 23:53:08,499 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 4, 4, 3, 2, 1, 1]
[2021-10-28 23:53:08,499 INFO L791 eck$LassoCheckResult]: Stem: 2098#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 2099#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2107#L12 assume !(10 == main_~i~0); 2109#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2124#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2123#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2122#L12 assume !(10 == main_~i~0); 2119#L12-2 assume !(0 == main_~i~0); 2116#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2113#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2106#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2090#L12-2
[2021-10-28 23:53:08,499 INFO L793 eck$LassoCheckResult]: Loop: 2090#L12-2 assume !(0 == main_~i~0); 2091#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2136#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2103#L12 assume !(10 == main_~i~0); 2105#L12-2 assume !(0 == main_~i~0); 2138#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2137#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2135#L12 assume !(10 == main_~i~0); 2127#L12-2 assume !(0 == main_~i~0); 2130#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2128#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2126#L12 assume !(10 == main_~i~0); 2125#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2100#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2094#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2095#L12 assume !(10 == main_~i~0); 2111#L12-2 assume !(0 == main_~i~0); 2117#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2114#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2110#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2090#L12-2
[2021-10-28 23:53:08,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:08,500 INFO L85 PathProgramCache]: Analyzing trace with hash -912841737, now seen corresponding path program 1 times
[2021-10-28 23:53:08,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:08,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537007611]
[2021-10-28 23:53:08,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:08,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:08,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:08,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537007611]
[2021-10-28 23:53:08,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537007611] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:08,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210530702]
[2021-10-28 23:53:08,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:08,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:08,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:08,553 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:08,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process
[2021-10-28 23:53:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:08,639 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:08,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210530702] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:08,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:08,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2021-10-28 23:53:08,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218798130]
[2021-10-28 23:53:08,680 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:08,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:08,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1872990932, now seen corresponding path program 2 times
[2021-10-28 23:53:08,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:08,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777356167]
[2021-10-28 23:53:08,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:08,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:08,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:08,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777356167]
[2021-10-28 23:53:08,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777356167] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:08,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075446059]
[2021-10-28 23:53:08,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:53:08,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:08,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:08,715 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:08,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process
[2021-10-28 23:53:08,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:53:08,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 23:53:08,825 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:08,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075446059] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:08,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:08,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2021-10-28 23:53:08,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680076776]
[2021-10-28 23:53:08,877 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:08,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:08,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 23:53:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:53:08,878 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. cyclomatic complexity: 15 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:08,900 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions.
[2021-10-28 23:53:08,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 23:53:08,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 79 transitions.
[2021-10-28 23:53:08,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27
[2021-10-28 23:53:08,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 64 states and 76 transitions.
[2021-10-28 23:53:08,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25
[2021-10-28 23:53:08,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25
[2021-10-28 23:53:08,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 76 transitions.
[2021-10-28 23:53:08,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:08,908 INFO L681 BuchiCegarLoop]: Abstraction has 64 states and 76 transitions.
[2021-10-28 23:53:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 76 transitions.
[2021-10-28 23:53:08,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 56.
[2021-10-28 23:53:08,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 55 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:08,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions.
[2021-10-28 23:53:08,910 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions.
[2021-10-28 23:53:08,910 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions.
[2021-10-28 23:53:08,910 INFO L425 BuchiCegarLoop]: ======== Iteration 12============
[2021-10-28 23:53:08,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 67 transitions.
[2021-10-28 23:53:08,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25
[2021-10-28 23:53:08,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:08,911 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:08,912 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 1, 1, 1]
[2021-10-28 23:53:08,913 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 5, 5, 3, 3, 1, 1]
[2021-10-28 23:53:08,913 INFO L791 eck$LassoCheckResult]: Stem: 2308#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 2309#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2327#L12 assume !(10 == main_~i~0); 2334#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2314#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2315#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2353#L12 assume !(10 == main_~i~0); 2306#L12-2 assume !(0 == main_~i~0); 2307#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2312#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2313#L12 assume !(10 == main_~i~0); 2318#L12-2 assume !(0 == main_~i~0); 2330#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2359#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2332#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2304#L12-2
[2021-10-28 23:53:08,913 INFO L793 eck$LassoCheckResult]: Loop: 2304#L12-2 assume !(0 == main_~i~0); 2305#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2352#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2351#L12 assume !(10 == main_~i~0); 2350#L12-2 assume !(0 == main_~i~0); 2348#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2346#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2344#L12 assume !(10 == main_~i~0); 2338#L12-2 assume !(0 == main_~i~0); 2342#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2340#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2336#L12 assume !(10 == main_~i~0); 2329#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2319#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2310#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2311#L12 assume !(10 == main_~i~0); 2356#L12-2 assume !(0 == main_~i~0); 2357#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2358#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2316#L12 assume !(10 == main_~i~0); 2317#L12-2 assume !(0 == main_~i~0); 2331#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2354#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2355#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2304#L12-2
[2021-10-28 23:53:08,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:08,913 INFO L85 PathProgramCache]: Analyzing trace with hash 554461792, now seen corresponding path program 2 times
[2021-10-28 23:53:08,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:08,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241834959]
[2021-10-28 23:53:08,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:08,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:08,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:08,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241834959]
[2021-10-28 23:53:08,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241834959] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:08,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337907346]
[2021-10-28 23:53:08,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:53:08,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:08,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:08,974 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:08,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process
[2021-10-28 23:53:09,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:53:09,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:09,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-28 23:53:09,061 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:09,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337907346] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:09,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:09,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2021-10-28 23:53:09,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998569162]
[2021-10-28 23:53:09,122 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:09,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash -77847875, now seen corresponding path program 3 times
[2021-10-28 23:53:09,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:09,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992776915]
[2021-10-28 23:53:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:09,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:09,195 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:09,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:09,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992776915]
[2021-10-28 23:53:09,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992776915] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:09,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940600196]
[2021-10-28 23:53:09,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-10-28 23:53:09,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:09,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:09,198 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:09,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process
[2021-10-28 23:53:09,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2021-10-28 23:53:09,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:09,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-28 23:53:09,274 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:09,332 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:09,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940600196] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:09,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:09,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2021-10-28 23:53:09,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688387206]
[2021-10-28 23:53:09,333 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:09,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:09,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:53:09,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:53:09,334 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. cyclomatic complexity: 15 Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:09,369 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions.
[2021-10-28 23:53:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-10-28 23:53:09,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 87 transitions.
[2021-10-28 23:53:09,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31
[2021-10-28 23:53:09,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 72 states and 84 transitions.
[2021-10-28 23:53:09,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29
[2021-10-28 23:53:09,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29
[2021-10-28 23:53:09,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 84 transitions.
[2021-10-28 23:53:09,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:09,373 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 84 transitions.
[2021-10-28 23:53:09,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 84 transitions.
[2021-10-28 23:53:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64.
[2021-10-28 23:53:09,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 64 states have (on average 1.171875) internal successors, (75), 63 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:09,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions.
[2021-10-28 23:53:09,375 INFO L704 BuchiCegarLoop]: Abstraction has 64 states and 75 transitions.
[2021-10-28 23:53:09,375 INFO L587 BuchiCegarLoop]: Abstraction has 64 states and 75 transitions.
[2021-10-28 23:53:09,375 INFO L425 BuchiCegarLoop]: ======== Iteration 13============
[2021-10-28 23:53:09,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 75 transitions.
[2021-10-28 23:53:09,376 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29
[2021-10-28 23:53:09,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:09,376 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:09,377 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 4, 3, 1, 1, 1]
[2021-10-28 23:53:09,377 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 6, 6, 4, 3, 1, 1]
[2021-10-28 23:53:09,378 INFO L791 eck$LassoCheckResult]: Stem: 2563#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 2564#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2584#L12 assume !(10 == main_~i~0); 2593#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2569#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2570#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2574#L12 assume !(10 == main_~i~0); 2575#L12-2 assume !(0 == main_~i~0); 2571#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2567#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2568#L12 assume !(10 == main_~i~0); 2561#L12-2 assume !(0 == main_~i~0); 2562#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2613#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2612#L12 assume !(10 == main_~i~0); 2588#L12-2 assume !(0 == main_~i~0); 2589#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2611#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2590#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2559#L12-2
[2021-10-28 23:53:09,378 INFO L793 eck$LassoCheckResult]: Loop: 2559#L12-2 assume !(0 == main_~i~0); 2560#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2610#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2609#L12 assume !(10 == main_~i~0); 2608#L12-2 assume !(0 == main_~i~0); 2607#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2606#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2605#L12 assume !(10 == main_~i~0); 2598#L12-2 assume !(0 == main_~i~0); 2602#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2600#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2596#L12 assume !(10 == main_~i~0); 2586#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2576#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2565#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2566#L12 assume !(10 == main_~i~0); 2614#L12-2 assume !(0 == main_~i~0); 2615#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2622#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2616#L12 assume !(10 == main_~i~0); 2617#L12-2 assume !(0 == main_~i~0); 2621#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2619#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2572#L12 assume !(10 == main_~i~0); 2573#L12-2 assume !(0 == main_~i~0); 2587#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2620#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2618#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2559#L12-2
[2021-10-28 23:53:09,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:09,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1774824375, now seen corresponding path program 3 times
[2021-10-28 23:53:09,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:09,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369687886]
[2021-10-28 23:53:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:09,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:09,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:09,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369687886]
[2021-10-28 23:53:09,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369687886] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:09,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473223148]
[2021-10-28 23:53:09,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-10-28 23:53:09,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:09,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:09,427 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:09,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process
[2021-10-28 23:53:09,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2021-10-28 23:53:09,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:09,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-10-28 23:53:09,544 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:09,615 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:09,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473223148] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:09,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:09,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2021-10-28 23:53:09,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023670909]
[2021-10-28 23:53:09,616 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:09,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:09,616 INFO L85 PathProgramCache]: Analyzing trace with hash -687303130, now seen corresponding path program 4 times
[2021-10-28 23:53:09,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:09,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668859347]
[2021-10-28 23:53:09,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:09,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:09,694 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:09,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:09,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668859347]
[2021-10-28 23:53:09,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668859347] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:09,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411951688]
[2021-10-28 23:53:09,695 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2021-10-28 23:53:09,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:09,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:09,701 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:09,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process
[2021-10-28 23:53:09,833 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-10-28 23:53:09,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:09,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-10-28 23:53:09,835 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:09,935 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:09,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411951688] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:09,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:09,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2021-10-28 23:53:09,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383178395]
[2021-10-28 23:53:09,937 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:09,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:09,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-10-28 23:53:09,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2021-10-28 23:53:09,938 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. cyclomatic complexity: 15 Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:09,977 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions.
[2021-10-28 23:53:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-10-28 23:53:09,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 95 transitions.
[2021-10-28 23:53:09,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35
[2021-10-28 23:53:09,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 80 states and 92 transitions.
[2021-10-28 23:53:09,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33
[2021-10-28 23:53:09,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33
[2021-10-28 23:53:09,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 92 transitions.
[2021-10-28 23:53:09,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:09,981 INFO L681 BuchiCegarLoop]: Abstraction has 80 states and 92 transitions.
[2021-10-28 23:53:09,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 92 transitions.
[2021-10-28 23:53:09,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72.
[2021-10-28 23:53:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 71 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions.
[2021-10-28 23:53:09,984 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 83 transitions.
[2021-10-28 23:53:09,984 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 83 transitions.
[2021-10-28 23:53:09,984 INFO L425 BuchiCegarLoop]: ======== Iteration 14============
[2021-10-28 23:53:09,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 83 transitions.
[2021-10-28 23:53:09,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33
[2021-10-28 23:53:09,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:09,986 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:09,992 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 4, 1, 1, 1]
[2021-10-28 23:53:09,992 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [8, 7, 7, 5, 3, 1, 1]
[2021-10-28 23:53:09,993 INFO L791 eck$LassoCheckResult]: Stem: 2864#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 2865#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2880#L12 assume !(10 == main_~i~0); 2890#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2866#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2862#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2863#L12 assume !(10 == main_~i~0); 2858#L12-2 assume !(0 == main_~i~0); 2859#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2867#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2869#L12 assume !(10 == main_~i~0); 2870#L12-2 assume !(0 == main_~i~0); 2915#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2914#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2913#L12 assume !(10 == main_~i~0); 2912#L12-2 assume !(0 == main_~i~0); 2885#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2911#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2909#L12 assume !(10 == main_~i~0); 2884#L12-2 assume !(0 == main_~i~0); 2886#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2908#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2887#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2856#L12-2
[2021-10-28 23:53:09,996 INFO L793 eck$LassoCheckResult]: Loop: 2856#L12-2 assume !(0 == main_~i~0); 2857#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2907#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2906#L12 assume !(10 == main_~i~0); 2905#L12-2 assume !(0 == main_~i~0); 2904#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2903#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2902#L12 assume !(10 == main_~i~0); 2895#L12-2 assume !(0 == main_~i~0); 2899#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2897#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2893#L12 assume !(10 == main_~i~0); 2882#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2871#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2872#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2918#L12 assume !(10 == main_~i~0); 2916#L12-2 assume !(0 == main_~i~0); 2917#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2927#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2926#L12 assume !(10 == main_~i~0); 2924#L12-2 assume !(0 == main_~i~0); 2923#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2922#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2921#L12 assume !(10 == main_~i~0); 2920#L12-2 assume !(0 == main_~i~0); 2919#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2860#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2861#L12 assume !(10 == main_~i~0); 2868#L12-2 assume !(0 == main_~i~0); 2883#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2910#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2925#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2856#L12-2
[2021-10-28 23:53:09,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:09,997 INFO L85 PathProgramCache]: Analyzing trace with hash 790045106, now seen corresponding path program 4 times
[2021-10-28 23:53:09,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:09,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847032134]
[2021-10-28 23:53:09,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:09,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:10,082 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:10,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:10,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847032134]
[2021-10-28 23:53:10,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847032134] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:10,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838348626]
[2021-10-28 23:53:10,083 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2021-10-28 23:53:10,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:10,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:10,089 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:10,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process
[2021-10-28 23:53:10,227 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-10-28 23:53:10,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:10,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-10-28 23:53:10,230 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:10,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838348626] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:10,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:10,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7
[2021-10-28 23:53:10,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099423775]
[2021-10-28 23:53:10,318 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:10,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:10,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1460350223, now seen corresponding path program 5 times
[2021-10-28 23:53:10,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:10,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514770716]
[2021-10-28 23:53:10,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:10,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:10,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:10,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514770716]
[2021-10-28 23:53:10,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514770716] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:10,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106409747]
[2021-10-28 23:53:10,384 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2021-10-28 23:53:10,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:10,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:10,390 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:10,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process
[2021-10-28 23:53:10,518 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s)
[2021-10-28 23:53:10,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:10,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-10-28 23:53:10,520 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:10,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106409747] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:10,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:10,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7
[2021-10-28 23:53:10,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194119571]
[2021-10-28 23:53:10,644 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:10,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:10,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-28 23:53:10,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2021-10-28 23:53:10,645 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. cyclomatic complexity: 15 Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:10,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:10,696 INFO L93 Difference]: Finished difference Result 91 states and 103 transitions.
[2021-10-28 23:53:10,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-10-28 23:53:10,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 103 transitions.
[2021-10-28 23:53:10,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 39
[2021-10-28 23:53:10,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 88 states and 100 transitions.
[2021-10-28 23:53:10,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37
[2021-10-28 23:53:10,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37
[2021-10-28 23:53:10,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 100 transitions.
[2021-10-28 23:53:10,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:10,699 INFO L681 BuchiCegarLoop]: Abstraction has 88 states and 100 transitions.
[2021-10-28 23:53:10,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 100 transitions.
[2021-10-28 23:53:10,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80.
[2021-10-28 23:53:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.1375) internal successors, (91), 79 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:10,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions.
[2021-10-28 23:53:10,702 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 91 transitions.
[2021-10-28 23:53:10,702 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 91 transitions.
[2021-10-28 23:53:10,702 INFO L425 BuchiCegarLoop]: ======== Iteration 15============
[2021-10-28 23:53:10,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 91 transitions.
[2021-10-28 23:53:10,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 37
[2021-10-28 23:53:10,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:10,703 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:10,704 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 6, 6, 5, 1, 1, 1]
[2021-10-28 23:53:10,704 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [9, 8, 8, 6, 3, 1, 1]
[2021-10-28 23:53:10,704 INFO L791 eck$LassoCheckResult]: Stem: 3199#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 3200#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3217#L12 assume !(10 == main_~i~0); 3228#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 3205#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3203#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3204#L12 assume !(10 == main_~i~0); 3197#L12-2 assume !(0 == main_~i~0); 3198#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3206#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3208#L12 assume !(10 == main_~i~0); 3209#L12-2 assume !(0 == main_~i~0); 3256#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3255#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3254#L12 assume !(10 == main_~i~0); 3253#L12-2 assume !(0 == main_~i~0); 3252#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3251#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3250#L12 assume !(10 == main_~i~0); 3249#L12-2 assume !(0 == main_~i~0); 3223#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3248#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3247#L12 assume !(10 == main_~i~0); 3222#L12-2 assume !(0 == main_~i~0); 3224#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3246#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3225#L12 assume 10 == main_~i~0;main_~up~0 := 0; 3195#L12-2
[2021-10-28 23:53:10,705 INFO L793 eck$LassoCheckResult]: Loop: 3195#L12-2 assume !(0 == main_~i~0); 3196#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3245#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3244#L12 assume !(10 == main_~i~0); 3243#L12-2 assume !(0 == main_~i~0); 3242#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3241#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3240#L12 assume !(10 == main_~i~0); 3233#L12-2 assume !(0 == main_~i~0); 3237#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3235#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3231#L12 assume !(10 == main_~i~0); 3220#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 3210#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3201#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3202#L12 assume !(10 == main_~i~0); 3207#L12-2 assume !(0 == main_~i~0); 3221#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3274#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3273#L12 assume !(10 == main_~i~0); 3272#L12-2 assume !(0 == main_~i~0); 3271#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3270#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3269#L12 assume !(10 == main_~i~0); 3268#L12-2 assume !(0 == main_~i~0); 3267#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3266#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3265#L12 assume !(10 == main_~i~0); 3264#L12-2 assume !(0 == main_~i~0); 3263#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3261#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3259#L12 assume !(10 == main_~i~0); 3257#L12-2 assume !(0 == main_~i~0); 3258#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3262#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3260#L12 assume 10 == main_~i~0;main_~up~0 := 0; 3195#L12-2
[2021-10-28 23:53:10,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:10,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1500441957, now seen corresponding path program 5 times
[2021-10-28 23:53:10,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:10,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333140066]
[2021-10-28 23:53:10,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:10,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 17 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:10,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:10,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333140066]
[2021-10-28 23:53:10,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333140066] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:10,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630434628]
[2021-10-28 23:53:10,766 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2021-10-28 23:53:10,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:10,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:10,768 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:10,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process
[2021-10-28 23:53:10,912 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s)
[2021-10-28 23:53:10,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:10,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-10-28 23:53:10,915 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:11,007 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 17 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:11,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630434628] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:11,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:11,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2021-10-28 23:53:11,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635455030]
[2021-10-28 23:53:11,008 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:11,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:11,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1420175224, now seen corresponding path program 6 times
[2021-10-28 23:53:11,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:11,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235196711]
[2021-10-28 23:53:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:11,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:11,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:11,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235196711]
[2021-10-28 23:53:11,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235196711] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:11,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502796978]
[2021-10-28 23:53:11,071 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2021-10-28 23:53:11,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:11,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:11,074 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:11,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process
[2021-10-28 23:53:11,232 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s)
[2021-10-28 23:53:11,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:11,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-10-28 23:53:11,238 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:11,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502796978] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:11,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:11,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2021-10-28 23:53:11,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813321102]
[2021-10-28 23:53:11,371 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:11,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:11,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-10-28 23:53:11,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72
[2021-10-28 23:53:11,372 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. cyclomatic complexity: 15 Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:11,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:11,416 INFO L93 Difference]: Finished difference Result 99 states and 111 transitions.
[2021-10-28 23:53:11,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-10-28 23:53:11,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 111 transitions.
[2021-10-28 23:53:11,418 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43
[2021-10-28 23:53:11,419 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 96 states and 108 transitions.
[2021-10-28 23:53:11,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41
[2021-10-28 23:53:11,419 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41
[2021-10-28 23:53:11,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 108 transitions.
[2021-10-28 23:53:11,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:11,420 INFO L681 BuchiCegarLoop]: Abstraction has 96 states and 108 transitions.
[2021-10-28 23:53:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 108 transitions.
[2021-10-28 23:53:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88.
[2021-10-28 23:53:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 88 states have (on average 1.125) internal successors, (99), 87 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions.
[2021-10-28 23:53:11,423 INFO L704 BuchiCegarLoop]: Abstraction has 88 states and 99 transitions.
[2021-10-28 23:53:11,423 INFO L587 BuchiCegarLoop]: Abstraction has 88 states and 99 transitions.
[2021-10-28 23:53:11,423 INFO L425 BuchiCegarLoop]: ======== Iteration 16============
[2021-10-28 23:53:11,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 99 transitions.
[2021-10-28 23:53:11,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41
[2021-10-28 23:53:11,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:11,425 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:11,426 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 7, 7, 6, 1, 1, 1]
[2021-10-28 23:53:11,426 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [10, 9, 9, 7, 3, 1, 1]
[2021-10-28 23:53:11,426 INFO L791 eck$LassoCheckResult]: Stem: 3580#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 3581#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3600#L12 assume !(10 == main_~i~0); 3610#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 3586#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3587#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3590#L12 assume !(10 == main_~i~0); 3591#L12-2 assume !(0 == main_~i~0); 3588#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3584#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3585#L12 assume !(10 == main_~i~0); 3578#L12-2 assume !(0 == main_~i~0); 3579#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3641#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3640#L12 assume !(10 == main_~i~0); 3639#L12-2 assume !(0 == main_~i~0); 3638#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3637#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3636#L12 assume !(10 == main_~i~0); 3635#L12-2 assume !(0 == main_~i~0); 3634#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3633#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3632#L12 assume !(10 == main_~i~0); 3631#L12-2 assume !(0 == main_~i~0); 3605#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3630#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3629#L12 assume !(10 == main_~i~0); 3604#L12-2 assume !(0 == main_~i~0); 3606#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3628#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3607#L12 assume 10 == main_~i~0;main_~up~0 := 0; 3576#L12-2
[2021-10-28 23:53:11,426 INFO L793 eck$LassoCheckResult]: Loop: 3576#L12-2 assume !(0 == main_~i~0); 3577#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3627#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3626#L12 assume !(10 == main_~i~0); 3625#L12-2 assume !(0 == main_~i~0); 3624#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3623#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3622#L12 assume !(10 == main_~i~0); 3615#L12-2 assume !(0 == main_~i~0); 3619#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3617#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3613#L12 assume !(10 == main_~i~0); 3602#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 3592#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3582#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3583#L12 assume !(10 == main_~i~0); 3589#L12-2 assume !(0 == main_~i~0); 3603#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3663#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3662#L12 assume !(10 == main_~i~0); 3661#L12-2 assume !(0 == main_~i~0); 3660#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3659#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3658#L12 assume !(10 == main_~i~0); 3657#L12-2 assume !(0 == main_~i~0); 3656#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3655#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3654#L12 assume !(10 == main_~i~0); 3653#L12-2 assume !(0 == main_~i~0); 3652#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3651#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3650#L12 assume !(10 == main_~i~0); 3649#L12-2 assume !(0 == main_~i~0); 3648#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3646#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3644#L12 assume !(10 == main_~i~0); 3642#L12-2 assume !(0 == main_~i~0); 3643#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3647#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3645#L12 assume 10 == main_~i~0;main_~up~0 := 0; 3576#L12-2
[2021-10-28 23:53:11,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:11,427 INFO L85 PathProgramCache]: Analyzing trace with hash -60397820, now seen corresponding path program 6 times
[2021-10-28 23:53:11,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:11,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031374227]
[2021-10-28 23:53:11,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:11,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:11,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:11,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031374227]
[2021-10-28 23:53:11,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031374227] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:11,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335715554]
[2021-10-28 23:53:11,520 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2021-10-28 23:53:11,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:11,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:11,523 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:11,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process
[2021-10-28 23:53:11,714 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s)
[2021-10-28 23:53:11,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:11,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-28 23:53:11,725 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:11,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335715554] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:11,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:11,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9
[2021-10-28 23:53:11,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812517838]
[2021-10-28 23:53:11,847 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:11,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1107573407, now seen corresponding path program 7 times
[2021-10-28 23:53:11,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:11,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744299152]
[2021-10-28 23:53:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:11,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 87 proven. 78 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:11,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:11,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744299152]
[2021-10-28 23:53:11,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744299152] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:11,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135235115]
[2021-10-28 23:53:11,967 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2021-10-28 23:53:11,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:11,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:11,971 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:11,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process
[2021-10-28 23:53:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:12,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-28 23:53:12,160 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 87 proven. 78 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:12,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135235115] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:12,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:12,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9
[2021-10-28 23:53:12,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687594519]
[2021-10-28 23:53:12,310 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:12,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-28 23:53:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90
[2021-10-28 23:53:12,311 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. cyclomatic complexity: 15 Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:12,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:12,382 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions.
[2021-10-28 23:53:12,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-10-28 23:53:12,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 119 transitions.
[2021-10-28 23:53:12,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47
[2021-10-28 23:53:12,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 104 states and 116 transitions.
[2021-10-28 23:53:12,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45
[2021-10-28 23:53:12,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45
[2021-10-28 23:53:12,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 116 transitions.
[2021-10-28 23:53:12,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:12,391 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 116 transitions.
[2021-10-28 23:53:12,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 116 transitions.
[2021-10-28 23:53:12,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96.
[2021-10-28 23:53:12,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 95 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 107 transitions.
[2021-10-28 23:53:12,395 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 107 transitions.
[2021-10-28 23:53:12,395 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 107 transitions.
[2021-10-28 23:53:12,395 INFO L425 BuchiCegarLoop]: ======== Iteration 17============
[2021-10-28 23:53:12,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 107 transitions.
[2021-10-28 23:53:12,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 45
[2021-10-28 23:53:12,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:12,399 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:12,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [9, 8, 8, 7, 1, 1, 1]
[2021-10-28 23:53:12,403 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [11, 10, 10, 8, 3, 1, 1]
[2021-10-28 23:53:12,403 INFO L791 eck$LassoCheckResult]: Stem: 4003#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 4004#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4023#L12 assume !(10 == main_~i~0); 4033#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 4009#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4010#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4013#L12 assume !(10 == main_~i~0); 4014#L12-2 assume !(0 == main_~i~0); 4011#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4007#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4008#L12 assume !(10 == main_~i~0); 4001#L12-2 assume !(0 == main_~i~0); 4002#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4068#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4067#L12 assume !(10 == main_~i~0); 4066#L12-2 assume !(0 == main_~i~0); 4065#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4064#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4063#L12 assume !(10 == main_~i~0); 4062#L12-2 assume !(0 == main_~i~0); 4061#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4060#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4059#L12 assume !(10 == main_~i~0); 4058#L12-2 assume !(0 == main_~i~0); 4057#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4056#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4055#L12 assume !(10 == main_~i~0); 4054#L12-2 assume !(0 == main_~i~0); 4028#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4053#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4052#L12 assume !(10 == main_~i~0); 4027#L12-2 assume !(0 == main_~i~0); 4029#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4051#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4030#L12 assume 10 == main_~i~0;main_~up~0 := 0; 3999#L12-2
[2021-10-28 23:53:12,403 INFO L793 eck$LassoCheckResult]: Loop: 3999#L12-2 assume !(0 == main_~i~0); 4000#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4050#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4049#L12 assume !(10 == main_~i~0); 4048#L12-2 assume !(0 == main_~i~0); 4047#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4046#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4045#L12 assume !(10 == main_~i~0); 4038#L12-2 assume !(0 == main_~i~0); 4042#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4040#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4036#L12 assume !(10 == main_~i~0); 4025#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 4015#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4005#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4006#L12 assume !(10 == main_~i~0); 4012#L12-2 assume !(0 == main_~i~0); 4026#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4094#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4093#L12 assume !(10 == main_~i~0); 4092#L12-2 assume !(0 == main_~i~0); 4091#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4090#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4089#L12 assume !(10 == main_~i~0); 4088#L12-2 assume !(0 == main_~i~0); 4087#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4086#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4085#L12 assume !(10 == main_~i~0); 4084#L12-2 assume !(0 == main_~i~0); 4083#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4082#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4081#L12 assume !(10 == main_~i~0); 4080#L12-2 assume !(0 == main_~i~0); 4079#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4078#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4077#L12 assume !(10 == main_~i~0); 4076#L12-2 assume !(0 == main_~i~0); 4075#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4073#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4071#L12 assume !(10 == main_~i~0); 4069#L12-2 assume !(0 == main_~i~0); 4070#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4074#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4072#L12 assume 10 == main_~i~0;main_~up~0 := 0; 3999#L12-2
[2021-10-28 23:53:12,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:12,404 INFO L85 PathProgramCache]: Analyzing trace with hash 87645933, now seen corresponding path program 7 times
[2021-10-28 23:53:12,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:12,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123659905]
[2021-10-28 23:53:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:12,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:12,510 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 23 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:12,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:12,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123659905]
[2021-10-28 23:53:12,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123659905] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:12,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183965222]
[2021-10-28 23:53:12,511 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2021-10-28 23:53:12,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:12,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:12,515 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:12,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process
[2021-10-28 23:53:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:12,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-10-28 23:53:12,740 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:12,878 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 23 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:12,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183965222] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:12,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:12,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10
[2021-10-28 23:53:12,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615393552]
[2021-10-28 23:53:12,880 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:12,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:12,880 INFO L85 PathProgramCache]: Analyzing trace with hash 638469834, now seen corresponding path program 8 times
[2021-10-28 23:53:12,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:12,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834863346]
[2021-10-28 23:53:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:12,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:12,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:12,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834863346]
[2021-10-28 23:53:12,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834863346] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:12,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815568842]
[2021-10-28 23:53:12,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:53:12,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:12,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:12,983 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:13,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process
[2021-10-28 23:53:13,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:53:13,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:13,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-10-28 23:53:13,268 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:13,440 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:13,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815568842] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:13,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:13,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10
[2021-10-28 23:53:13,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469790372]
[2021-10-28 23:53:13,442 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:13,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:13,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-10-28 23:53:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110
[2021-10-28 23:53:13,443 INFO L87 Difference]: Start difference. First operand 96 states and 107 transitions. cyclomatic complexity: 15 Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:13,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:13,525 INFO L93 Difference]: Finished difference Result 115 states and 127 transitions.
[2021-10-28 23:53:13,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-10-28 23:53:13,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 127 transitions.
[2021-10-28 23:53:13,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51
[2021-10-28 23:53:13,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 112 states and 124 transitions.
[2021-10-28 23:53:13,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49
[2021-10-28 23:53:13,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49
[2021-10-28 23:53:13,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112 states and 124 transitions.
[2021-10-28 23:53:13,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:13,529 INFO L681 BuchiCegarLoop]: Abstraction has 112 states and 124 transitions.
[2021-10-28 23:53:13,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states and 124 transitions.
[2021-10-28 23:53:13,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 104.
[2021-10-28 23:53:13,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.1057692307692308) internal successors, (115), 103 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:13,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 115 transitions.
[2021-10-28 23:53:13,534 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 115 transitions.
[2021-10-28 23:53:13,534 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 115 transitions.
[2021-10-28 23:53:13,534 INFO L425 BuchiCegarLoop]: ======== Iteration 18============
[2021-10-28 23:53:13,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 115 transitions.
[2021-10-28 23:53:13,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49
[2021-10-28 23:53:13,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:13,535 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:13,537 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 9, 9, 8, 1, 1, 1]
[2021-10-28 23:53:13,537 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [12, 11, 11, 9, 3, 1, 1]
[2021-10-28 23:53:13,537 INFO L791 eck$LassoCheckResult]: Stem: 4472#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 4473#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4488#L12 assume !(10 == main_~i~0); 4497#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 4474#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4475#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4478#L12 assume !(10 == main_~i~0); 4479#L12-2 assume !(0 == main_~i~0); 4476#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4470#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4471#L12 assume !(10 == main_~i~0); 4466#L12-2 assume !(0 == main_~i~0); 4467#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4537#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4536#L12 assume !(10 == main_~i~0); 4535#L12-2 assume !(0 == main_~i~0); 4534#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4533#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4532#L12 assume !(10 == main_~i~0); 4531#L12-2 assume !(0 == main_~i~0); 4530#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4529#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4528#L12 assume !(10 == main_~i~0); 4527#L12-2 assume !(0 == main_~i~0); 4526#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4525#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4524#L12 assume !(10 == main_~i~0); 4523#L12-2 assume !(0 == main_~i~0); 4522#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4521#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4520#L12 assume !(10 == main_~i~0); 4519#L12-2 assume !(0 == main_~i~0); 4493#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4518#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4517#L12 assume !(10 == main_~i~0); 4492#L12-2 assume !(0 == main_~i~0); 4494#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4516#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4495#L12 assume 10 == main_~i~0;main_~up~0 := 0; 4464#L12-2
[2021-10-28 23:53:13,538 INFO L793 eck$LassoCheckResult]: Loop: 4464#L12-2 assume !(0 == main_~i~0); 4465#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4515#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4514#L12 assume !(10 == main_~i~0); 4513#L12-2 assume !(0 == main_~i~0); 4511#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4509#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4507#L12 assume !(10 == main_~i~0); 4501#L12-2 assume !(0 == main_~i~0); 4505#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4503#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4499#L12 assume !(10 == main_~i~0); 4490#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 4480#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4468#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4469#L12 assume !(10 == main_~i~0); 4477#L12-2 assume !(0 == main_~i~0); 4491#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4567#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4566#L12 assume !(10 == main_~i~0); 4565#L12-2 assume !(0 == main_~i~0); 4564#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4563#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4562#L12 assume !(10 == main_~i~0); 4561#L12-2 assume !(0 == main_~i~0); 4560#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4559#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4558#L12 assume !(10 == main_~i~0); 4557#L12-2 assume !(0 == main_~i~0); 4556#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4555#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4554#L12 assume !(10 == main_~i~0); 4553#L12-2 assume !(0 == main_~i~0); 4552#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4551#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4550#L12 assume !(10 == main_~i~0); 4549#L12-2 assume !(0 == main_~i~0); 4548#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4547#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4546#L12 assume !(10 == main_~i~0); 4545#L12-2 assume !(0 == main_~i~0); 4544#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4542#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4540#L12 assume !(10 == main_~i~0); 4538#L12-2 assume !(0 == main_~i~0); 4539#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4543#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4541#L12 assume 10 == main_~i~0;main_~up~0 := 0; 4464#L12-2
[2021-10-28 23:53:13,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:13,538 INFO L85 PathProgramCache]: Analyzing trace with hash -91473322, now seen corresponding path program 8 times
[2021-10-28 23:53:13,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:13,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464700170]
[2021-10-28 23:53:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:13,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 26 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:13,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:13,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464700170]
[2021-10-28 23:53:13,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464700170] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:13,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282943587]
[2021-10-28 23:53:13,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:53:13,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:13,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:13,673 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:13,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process
[2021-10-28 23:53:13,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:53:13,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:13,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-28 23:53:13,910 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:14,033 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 26 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:53:14,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282943587] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:14,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:14,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11
[2021-10-28 23:53:14,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237334629]
[2021-10-28 23:53:14,035 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-10-28 23:53:14,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1421863859, now seen corresponding path program 9 times
[2021-10-28 23:53:14,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:14,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750597268]
[2021-10-28 23:53:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:14,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 113 proven. 136 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:14,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:14,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750597268]
[2021-10-28 23:53:14,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750597268] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:14,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887580934]
[2021-10-28 23:53:14,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-10-28 23:53:14,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:14,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:14,145 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:14,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process
[2021-10-28 23:53:14,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s)
[2021-10-28 23:53:14,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:14,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-28 23:53:14,365 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 113 proven. 136 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:53:14,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887580934] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:14,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:14,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11
[2021-10-28 23:53:14,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676556680]
[2021-10-28 23:53:14,518 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:53:14,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-10-28 23:53:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132
[2021-10-28 23:53:14,519 INFO L87 Difference]: Start difference. First operand 104 states and 115 transitions. cyclomatic complexity: 15 Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:14,621 INFO L93 Difference]: Finished difference Result 123 states and 135 transitions.
[2021-10-28 23:53:14,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-10-28 23:53:14,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 135 transitions.
[2021-10-28 23:53:14,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 55
[2021-10-28 23:53:14,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 120 states and 132 transitions.
[2021-10-28 23:53:14,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53
[2021-10-28 23:53:14,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53
[2021-10-28 23:53:14,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 132 transitions.
[2021-10-28 23:53:14,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:14,625 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 132 transitions.
[2021-10-28 23:53:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 132 transitions.
[2021-10-28 23:53:14,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 112.
[2021-10-28 23:53:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 112 states have (on average 1.0982142857142858) internal successors, (123), 111 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:14,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions.
[2021-10-28 23:53:14,630 INFO L704 BuchiCegarLoop]: Abstraction has 112 states and 123 transitions.
[2021-10-28 23:53:14,630 INFO L587 BuchiCegarLoop]: Abstraction has 112 states and 123 transitions.
[2021-10-28 23:53:14,630 INFO L425 BuchiCegarLoop]: ======== Iteration 19============
[2021-10-28 23:53:14,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 112 states and 123 transitions.
[2021-10-28 23:53:14,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53
[2021-10-28 23:53:14,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:14,631 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:14,635 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1]
[2021-10-28 23:53:14,635 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [13, 12, 12, 10, 3, 1, 1]
[2021-10-28 23:53:14,636 INFO L791 eck$LassoCheckResult]: Stem: 4979#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 4980#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4994#L12 assume !(10 == main_~i~0); 5005#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 4981#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4982#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4985#L12 assume !(10 == main_~i~0); 4986#L12-2 assume !(0 == main_~i~0); 4983#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4977#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4978#L12 assume !(10 == main_~i~0); 4973#L12-2 assume !(0 == main_~i~0); 4974#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5048#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5047#L12 assume !(10 == main_~i~0); 5046#L12-2 assume !(0 == main_~i~0); 5045#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5044#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5043#L12 assume !(10 == main_~i~0); 5042#L12-2 assume !(0 == main_~i~0); 5041#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5040#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5039#L12 assume !(10 == main_~i~0); 5038#L12-2 assume !(0 == main_~i~0); 5037#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5036#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5035#L12 assume !(10 == main_~i~0); 5034#L12-2 assume !(0 == main_~i~0); 5033#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5032#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5031#L12 assume !(10 == main_~i~0); 5030#L12-2 assume !(0 == main_~i~0); 5029#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5028#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5027#L12 assume !(10 == main_~i~0); 5026#L12-2 assume !(0 == main_~i~0); 5000#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5025#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5024#L12 assume !(10 == main_~i~0); 4999#L12-2 assume !(0 == main_~i~0); 5001#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5023#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5002#L12 assume 10 == main_~i~0;main_~up~0 := 0; 4971#L12-2
[2021-10-28 23:53:14,636 INFO L793 eck$LassoCheckResult]: Loop: 4971#L12-2 assume !(0 == main_~i~0); 4972#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 5022#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5021#L12 assume !(10 == main_~i~0); 5020#L12-2 assume !(0 == main_~i~0); 5019#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 5018#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5017#L12 assume !(10 == main_~i~0); 5010#L12-2 assume !(0 == main_~i~0); 5014#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 5012#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5008#L12 assume !(10 == main_~i~0); 4997#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 4987#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4975#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4976#L12 assume !(10 == main_~i~0); 4984#L12-2 assume !(0 == main_~i~0); 4998#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5082#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5081#L12 assume !(10 == main_~i~0); 5080#L12-2 assume !(0 == main_~i~0); 5079#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5078#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5077#L12 assume !(10 == main_~i~0); 5076#L12-2 assume !(0 == main_~i~0); 5075#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5074#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5073#L12 assume !(10 == main_~i~0); 5072#L12-2 assume !(0 == main_~i~0); 5071#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5070#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5069#L12 assume !(10 == main_~i~0); 5068#L12-2 assume !(0 == main_~i~0); 5067#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5066#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5065#L12 assume !(10 == main_~i~0); 5064#L12-2 assume !(0 == main_~i~0); 5063#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5062#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5061#L12 assume !(10 == main_~i~0); 5060#L12-2 assume !(0 == main_~i~0); 5059#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5058#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5057#L12 assume !(10 == main_~i~0); 5056#L12-2 assume !(0 == main_~i~0); 5055#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5053#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5051#L12 assume !(10 == main_~i~0); 5049#L12-2 assume !(0 == main_~i~0); 5050#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 5054#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 5052#L12 assume 10 == main_~i~0;main_~up~0 := 0; 4971#L12-2
[2021-10-28 23:53:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:14,637 INFO L85 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 9 times
[2021-10-28 23:53:14,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:14,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821691507]
[2021-10-28 23:53:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:14,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:14,647 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:14,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:14,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:14,676 INFO L85 PathProgramCache]: Analyzing trace with hash -690818020, now seen corresponding path program 10 times
[2021-10-28 23:53:14,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:14,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189347251]
[2021-10-28 23:53:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:14,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:14,686 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:14,695 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:14,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:14,695 INFO L85 PathProgramCache]: Analyzing trace with hash -120542630, now seen corresponding path program 2 times
[2021-10-28 23:53:14,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:14,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530292561]
[2021-10-28 23:53:14,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:14,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 672 proven. 15 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:14,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:14,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530292561]
[2021-10-28 23:53:14,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530292561] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:14,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706537663]
[2021-10-28 23:53:14,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:53:14,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:14,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:14,770 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:14,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process
[2021-10-28 23:53:15,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:53:15,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:15,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-28 23:53:15,049 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 672 proven. 15 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:15,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706537663] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:15,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:15,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2021-10-28 23:53:15,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326114191]
[2021-10-28 23:53:15,659 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:15,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:15,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:15,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:15,659 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:15,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:15,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:15,660 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:15,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration19_Loop
[2021-10-28 23:53:15,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:15,660 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:15,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:15,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:15,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:15,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:15,769 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:15,769 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:15,769 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:15,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:15,776 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:15,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:15,779 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:15,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process
[2021-10-28 23:53:15,813 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:15,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:15,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:15,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:15,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:15,856 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:15,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:15,859 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:15,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process
[2021-10-28 23:53:15,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0
[2021-10-28 23:53:15,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:15,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:15,902 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:15,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process
[2021-10-28 23:53:15,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:15,903 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:15,916 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:15,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:15,941 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:15,941 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:15,941 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:15,941 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:15,941 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:15,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:15,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:15,941 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:15,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration19_Loop
[2021-10-28 23:53:15,942 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:15,942 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:15,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:15,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:15,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:15,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:16,035 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:16,035 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:16,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:16,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:16,037 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:16,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process
[2021-10-28 23:53:16,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:16,048 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:16,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:16,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:16,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:16,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:16,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:16,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:16,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0
[2021-10-28 23:53:16,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:16,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:16,079 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:16,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process
[2021-10-28 23:53:16,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:16,089 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:16,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:16,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:16,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:16,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:16,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:16,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:16,093 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:16,095 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:16,095 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:16,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:16,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:16,097 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:16,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process
[2021-10-28 23:53:16,098 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:16,098 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:16,098 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:16,098 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 13
Supporting invariants []
[2021-10-28 23:53:16,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:16,123 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:16,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:16,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:16,159 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:16,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-10-28 23:53:16,332 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:16,568 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2021-10-28 23:53:16,569 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates
[2021-10-28 23:53:16,569 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 112 states and 123 transitions. cyclomatic complexity: 15 Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:16,758 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 112 states and 123 transitions. cyclomatic complexity: 15. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 461 states and 502 transitions. Complement of second has 19 states.
[2021-10-28 23:53:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 8 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:16,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:16,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 44 transitions.
[2021-10-28 23:53:16,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 43 letters. Loop has 52 letters.
[2021-10-28 23:53:16,763 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:16,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 95 letters. Loop has 52 letters.
[2021-10-28 23:53:16,764 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:16,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 43 letters. Loop has 104 letters.
[2021-10-28 23:53:16,766 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:16,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 461 states and 502 transitions.
[2021-10-28 23:53:16,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57
[2021-10-28 23:53:16,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 461 states to 386 states and 420 transitions.
[2021-10-28 23:53:16,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 88
[2021-10-28 23:53:16,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91
[2021-10-28 23:53:16,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 386 states and 420 transitions.
[2021-10-28 23:53:16,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:16,775 INFO L681 BuchiCegarLoop]: Abstraction has 386 states and 420 transitions.
[2021-10-28 23:53:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states and 420 transitions.
[2021-10-28 23:53:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 326.
[2021-10-28 23:53:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 326 states have (on average 1.0736196319018405) internal successors, (350), 325 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:16,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 350 transitions.
[2021-10-28 23:53:16,784 INFO L704 BuchiCegarLoop]: Abstraction has 326 states and 350 transitions.
[2021-10-28 23:53:16,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:16,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:53:16,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:53:16,785 INFO L87 Difference]: Start difference. First operand 326 states and 350 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:16,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:16,815 INFO L93 Difference]: Finished difference Result 233 states and 255 transitions.
[2021-10-28 23:53:16,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-10-28 23:53:16,816 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 255 transitions.
[2021-10-28 23:53:16,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59
[2021-10-28 23:53:16,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 207 states and 229 transitions.
[2021-10-28 23:53:16,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57
[2021-10-28 23:53:16,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57
[2021-10-28 23:53:16,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 229 transitions.
[2021-10-28 23:53:16,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:16,821 INFO L681 BuchiCegarLoop]: Abstraction has 207 states and 229 transitions.
[2021-10-28 23:53:16,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 229 transitions.
[2021-10-28 23:53:16,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 120.
[2021-10-28 23:53:16,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.1) internal successors, (132), 119 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions.
[2021-10-28 23:53:16,825 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 132 transitions.
[2021-10-28 23:53:16,825 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 132 transitions.
[2021-10-28 23:53:16,826 INFO L425 BuchiCegarLoop]: ======== Iteration 20============
[2021-10-28 23:53:16,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 132 transitions.
[2021-10-28 23:53:16,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 57
[2021-10-28 23:53:16,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:16,827 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:16,828 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1]
[2021-10-28 23:53:16,828 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [14, 13, 13, 10, 4, 1, 1]
[2021-10-28 23:53:16,829 INFO L791 eck$LassoCheckResult]: Stem: 6731#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 6732#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6773#L12 assume !(10 == main_~i~0); 6748#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 6733#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6734#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6796#L12 assume !(10 == main_~i~0); 6795#L12-2 assume !(0 == main_~i~0); 6794#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6793#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6792#L12 assume !(10 == main_~i~0); 6791#L12-2 assume !(0 == main_~i~0); 6790#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6789#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6788#L12 assume !(10 == main_~i~0); 6787#L12-2 assume !(0 == main_~i~0); 6786#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6785#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6784#L12 assume !(10 == main_~i~0); 6783#L12-2 assume !(0 == main_~i~0); 6782#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6781#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6780#L12 assume !(10 == main_~i~0); 6779#L12-2 assume !(0 == main_~i~0); 6777#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6775#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6770#L12 assume !(10 == main_~i~0); 6769#L12-2 assume !(0 == main_~i~0); 6767#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6765#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6763#L12 assume !(10 == main_~i~0); 6761#L12-2 assume !(0 == main_~i~0); 6759#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6757#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6755#L12 assume !(10 == main_~i~0); 6753#L12-2 assume !(0 == main_~i~0); 6742#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6750#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6749#L12 assume !(10 == main_~i~0); 6740#L12-2 assume !(0 == main_~i~0); 6741#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6797#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6774#L12 assume 10 == main_~i~0;main_~up~0 := 0; 6723#L12-2
[2021-10-28 23:53:16,829 INFO L793 eck$LassoCheckResult]: Loop: 6723#L12-2 assume !(0 == main_~i~0); 6724#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 6768#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6766#L12 assume !(10 == main_~i~0); 6764#L12-2 assume !(0 == main_~i~0); 6762#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 6760#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6758#L12 assume !(10 == main_~i~0); 6756#L12-2 assume !(0 == main_~i~0); 6754#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 6752#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6751#L12 assume !(10 == main_~i~0); 6745#L12-2 assume !(0 == main_~i~0); 6747#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 6746#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6743#L12 assume !(10 == main_~i~0); 6738#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 6737#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6727#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6728#L12 assume !(10 == main_~i~0); 6735#L12-2 assume !(0 == main_~i~0); 6739#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6842#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6841#L12 assume !(10 == main_~i~0); 6840#L12-2 assume !(0 == main_~i~0); 6839#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6838#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6837#L12 assume !(10 == main_~i~0); 6836#L12-2 assume !(0 == main_~i~0); 6835#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6834#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6833#L12 assume !(10 == main_~i~0); 6832#L12-2 assume !(0 == main_~i~0); 6831#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6830#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6829#L12 assume !(10 == main_~i~0); 6828#L12-2 assume !(0 == main_~i~0); 6827#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6826#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6825#L12 assume !(10 == main_~i~0); 6824#L12-2 assume !(0 == main_~i~0); 6823#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6822#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6821#L12 assume !(10 == main_~i~0); 6820#L12-2 assume !(0 == main_~i~0); 6819#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6818#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6817#L12 assume !(10 == main_~i~0); 6816#L12-2 assume !(0 == main_~i~0); 6815#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6814#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6812#L12 assume !(10 == main_~i~0); 6809#L12-2 assume !(0 == main_~i~0); 6810#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6813#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6811#L12 assume 10 == main_~i~0;main_~up~0 := 0; 6723#L12-2
[2021-10-28 23:53:16,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:16,829 INFO L85 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 10 times
[2021-10-28 23:53:16,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:16,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513557230]
[2021-10-28 23:53:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:16,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:16,839 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:16,846 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:16,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:16,847 INFO L85 PathProgramCache]: Analyzing trace with hash 805924487, now seen corresponding path program 11 times
[2021-10-28 23:53:16,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:16,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111030093]
[2021-10-28 23:53:16,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:16,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:16,875 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:16,883 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:16,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:16,884 INFO L85 PathProgramCache]: Analyzing trace with hash 329635269, now seen corresponding path program 3 times
[2021-10-28 23:53:16,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:16,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682620147]
[2021-10-28 23:53:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:16,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 753 proven. 28 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:16,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:16,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682620147]
[2021-10-28 23:53:16,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682620147] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:16,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205424492]
[2021-10-28 23:53:16,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-10-28 23:53:16,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:16,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:16,943 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:16,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process
[2021-10-28 23:53:16,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0
[2021-10-28 23:53:17,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s)
[2021-10-28 23:53:17,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:17,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-10-28 23:53:17,255 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 753 proven. 28 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:17,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205424492] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:17,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:17,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7
[2021-10-28 23:53:17,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317602249]
[2021-10-28 23:53:17,769 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:17,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:17,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:17,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:17,769 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:17,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:17,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:17,769 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:17,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration20_Loop
[2021-10-28 23:53:17,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:17,770 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:17,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:17,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:17,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:17,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:17,874 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:17,874 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:17,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:17,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:17,876 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:17,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:17,886 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:17,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process
[2021-10-28 23:53:17,921 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:17,922 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:17,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:17,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:17,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:17,964 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:17,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:17,970 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:17,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process
[2021-10-28 23:53:18,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:18,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:18,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:18,008 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:18,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process
[2021-10-28 23:53:18,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:18,010 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:18,021 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:18,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0
[2021-10-28 23:53:18,046 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:18,046 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:18,046 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:18,046 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:18,046 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:18,046 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:18,046 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:18,046 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:18,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration20_Loop
[2021-10-28 23:53:18,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:18,046 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:18,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:18,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:18,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:18,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:18,113 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:18,113 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:18,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:18,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:18,114 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:18,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process
[2021-10-28 23:53:18,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:18,125 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:18,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:18,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:18,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:18,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:18,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:18,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:18,128 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:18,131 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:18,131 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:18,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:18,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:18,132 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:18,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process
[2021-10-28 23:53:18,133 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:18,133 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:18,133 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:18,133 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 7
Supporting invariants []
[2021-10-28 23:53:18,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0
[2021-10-28 23:53:18,156 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:18,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:18,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:18,192 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:18,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-10-28 23:53:18,323 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 193 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2021-10-28 23:53:18,557 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates
[2021-10-28 23:53:18,557 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 132 transitions. cyclomatic complexity: 16 Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:18,760 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 120 states and 132 transitions. cyclomatic complexity: 16. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 549 states and 601 transitions. Complement of second has 23 states.
[2021-10-28 23:53:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 1 stem states 10 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:18,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions.
[2021-10-28 23:53:18,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 43 letters. Loop has 56 letters.
[2021-10-28 23:53:18,762 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:18,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 99 letters. Loop has 56 letters.
[2021-10-28 23:53:18,762 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:18,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 43 letters. Loop has 112 letters.
[2021-10-28 23:53:18,763 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:18,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 549 states and 601 transitions.
[2021-10-28 23:53:18,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61
[2021-10-28 23:53:18,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 549 states to 434 states and 475 transitions.
[2021-10-28 23:53:18,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85
[2021-10-28 23:53:18,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88
[2021-10-28 23:53:18,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 434 states and 475 transitions.
[2021-10-28 23:53:18,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:18,772 INFO L681 BuchiCegarLoop]: Abstraction has 434 states and 475 transitions.
[2021-10-28 23:53:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states and 475 transitions.
[2021-10-28 23:53:18,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 334.
[2021-10-28 23:53:18,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 334 states have (on average 1.0748502994011977) internal successors, (359), 333 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:18,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 359 transitions.
[2021-10-28 23:53:18,781 INFO L704 BuchiCegarLoop]: Abstraction has 334 states and 359 transitions.
[2021-10-28 23:53:18,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:18,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-10-28 23:53:18,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2021-10-28 23:53:18,782 INFO L87 Difference]: Start difference. First operand 334 states and 359 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:18,815 INFO L93 Difference]: Finished difference Result 261 states and 286 transitions.
[2021-10-28 23:53:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-10-28 23:53:18,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 261 states and 286 transitions.
[2021-10-28 23:53:18,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 63
[2021-10-28 23:53:18,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 261 states to 227 states and 252 transitions.
[2021-10-28 23:53:18,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57
[2021-10-28 23:53:18,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57
[2021-10-28 23:53:18,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 227 states and 252 transitions.
[2021-10-28 23:53:18,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:18,820 INFO L681 BuchiCegarLoop]: Abstraction has 227 states and 252 transitions.
[2021-10-28 23:53:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states and 252 transitions.
[2021-10-28 23:53:18,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 128.
[2021-10-28 23:53:18,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 128 states have (on average 1.1015625) internal successors, (141), 127 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions.
[2021-10-28 23:53:18,824 INFO L704 BuchiCegarLoop]: Abstraction has 128 states and 141 transitions.
[2021-10-28 23:53:18,824 INFO L587 BuchiCegarLoop]: Abstraction has 128 states and 141 transitions.
[2021-10-28 23:53:18,824 INFO L425 BuchiCegarLoop]: ======== Iteration 21============
[2021-10-28 23:53:18,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states and 141 transitions.
[2021-10-28 23:53:18,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61
[2021-10-28 23:53:18,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:18,832 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:18,833 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1]
[2021-10-28 23:53:18,833 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [15, 14, 14, 10, 5, 1, 1]
[2021-10-28 23:53:18,834 INFO L791 eck$LassoCheckResult]: Stem: 8644#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 8645#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8698#L12 assume !(10 == main_~i~0); 8665#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 8650#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8651#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8717#L12 assume !(10 == main_~i~0); 8716#L12-2 assume !(0 == main_~i~0); 8715#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8714#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8713#L12 assume !(10 == main_~i~0); 8712#L12-2 assume !(0 == main_~i~0); 8711#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8710#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8709#L12 assume !(10 == main_~i~0); 8708#L12-2 assume !(0 == main_~i~0); 8707#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8706#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8705#L12 assume !(10 == main_~i~0); 8704#L12-2 assume !(0 == main_~i~0); 8702#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8700#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8695#L12 assume !(10 == main_~i~0); 8694#L12-2 assume !(0 == main_~i~0); 8692#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8690#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8688#L12 assume !(10 == main_~i~0); 8686#L12-2 assume !(0 == main_~i~0); 8684#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8682#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8680#L12 assume !(10 == main_~i~0); 8678#L12-2 assume !(0 == main_~i~0); 8676#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8674#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8672#L12 assume !(10 == main_~i~0); 8670#L12-2 assume !(0 == main_~i~0); 8659#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8667#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8666#L12 assume !(10 == main_~i~0); 8657#L12-2 assume !(0 == main_~i~0); 8658#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8718#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8699#L12 assume 10 == main_~i~0;main_~up~0 := 0; 8640#L12-2
[2021-10-28 23:53:18,834 INFO L793 eck$LassoCheckResult]: Loop: 8640#L12-2 assume !(0 == main_~i~0); 8641#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 8693#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8691#L12 assume !(10 == main_~i~0); 8689#L12-2 assume !(0 == main_~i~0); 8687#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 8685#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8683#L12 assume !(10 == main_~i~0); 8681#L12-2 assume !(0 == main_~i~0); 8679#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 8677#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8675#L12 assume !(10 == main_~i~0); 8673#L12-2 assume !(0 == main_~i~0); 8671#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 8669#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8668#L12 assume !(10 == main_~i~0); 8662#L12-2 assume !(0 == main_~i~0); 8664#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 8663#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8660#L12 assume !(10 == main_~i~0); 8655#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 8654#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8646#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8647#L12 assume !(10 == main_~i~0); 8652#L12-2 assume !(0 == main_~i~0); 8656#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8767#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8766#L12 assume !(10 == main_~i~0); 8765#L12-2 assume !(0 == main_~i~0); 8764#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8763#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8762#L12 assume !(10 == main_~i~0); 8761#L12-2 assume !(0 == main_~i~0); 8760#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8759#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8758#L12 assume !(10 == main_~i~0); 8757#L12-2 assume !(0 == main_~i~0); 8756#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8755#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8754#L12 assume !(10 == main_~i~0); 8753#L12-2 assume !(0 == main_~i~0); 8752#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8751#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8750#L12 assume !(10 == main_~i~0); 8749#L12-2 assume !(0 == main_~i~0); 8748#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8747#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8746#L12 assume !(10 == main_~i~0); 8745#L12-2 assume !(0 == main_~i~0); 8744#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8743#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8742#L12 assume !(10 == main_~i~0); 8741#L12-2 assume !(0 == main_~i~0); 8740#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8738#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8736#L12 assume !(10 == main_~i~0); 8734#L12-2 assume !(0 == main_~i~0); 8735#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 8739#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 8737#L12 assume 10 == main_~i~0;main_~up~0 := 0; 8640#L12-2
[2021-10-28 23:53:18,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:18,834 INFO L85 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 11 times
[2021-10-28 23:53:18,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:18,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060156086]
[2021-10-28 23:53:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:18,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:18,844 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:18,850 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:18,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:18,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1151943822, now seen corresponding path program 12 times
[2021-10-28 23:53:18,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:18,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522610419]
[2021-10-28 23:53:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:18,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:18,897 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:18,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:18,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:18,906 INFO L85 PathProgramCache]: Analyzing trace with hash 533812144, now seen corresponding path program 4 times
[2021-10-28 23:53:18,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:18,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952149255]
[2021-10-28 23:53:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:18,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:18,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:18,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 834 proven. 45 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:18,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:18,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952149255]
[2021-10-28 23:53:18,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952149255] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:18,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318504796]
[2021-10-28 23:53:18,990 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2021-10-28 23:53:18,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:18,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:18,994 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:19,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process
[2021-10-28 23:53:19,384 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-10-28 23:53:19,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:19,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-10-28 23:53:19,387 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:19,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 834 proven. 45 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:19,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318504796] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:19,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:19,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2021-10-28 23:53:19,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152586930]
[2021-10-28 23:53:20,054 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:20,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:20,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:20,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:20,054 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:20,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:20,054 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:20,055 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration21_Loop
[2021-10-28 23:53:20,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:20,055 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:20,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:20,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:20,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:20,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:20,129 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:20,129 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:20,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,134 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:20,135 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:20,149 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:20,149 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:20,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:20,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,170 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:20,172 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:20,185 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:20,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_19=0} Honda state: {v_rep~unnamed0~0~false_19=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:20,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:20,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,207 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:20,208 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:20,221 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:20,221 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_19=1} Honda state: {v_rep~unnamed0~0~true_19=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:20,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:20,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,245 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:20,246 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:20,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:20,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,278 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:20,279 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:20,315 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:20,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0
[2021-10-28 23:53:20,318 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:20,318 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:20,318 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:20,318 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:20,318 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:20,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:20,318 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:20,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration21_Loop
[2021-10-28 23:53:20,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:20,319 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:20,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:20,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:20,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:20,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:20,387 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:20,387 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:20,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,388 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:20,397 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:20,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:20,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:20,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:20,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:20,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:20,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:20,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:20,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,424 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:20,439 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:20,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:20,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:20,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:20,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:20,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:20,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:20,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:20,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,491 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:20,501 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:20,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:20,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:20,501 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 23:53:20,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:20,502 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 23:53:20,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:20,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:20,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:20,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,528 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:20,537 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:20,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:20,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:20,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:20,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:20,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:20,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:20,540 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:20,542 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:20,542 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:20,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:20,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:20,543 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:20,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process
[2021-10-28 23:53:20,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:20,546 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:20,546 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:20,546 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 15
Supporting invariants []
[2021-10-28 23:53:20,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:20,568 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:20,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:20,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:20,596 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:20,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-28 23:53:20,722 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2021-10-28 23:53:21,003 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates
[2021-10-28 23:53:21,004 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 128 states and 141 transitions. cyclomatic complexity: 17 Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:21,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:21,372 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 128 states and 141 transitions. cyclomatic complexity: 17. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 653 states and 718 transitions. Complement of second has 27 states.
[2021-10-28 23:53:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 1 stem states 12 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 62 transitions.
[2021-10-28 23:53:21,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 62 transitions. Stem has 43 letters. Loop has 60 letters.
[2021-10-28 23:53:21,374 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:21,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 62 transitions. Stem has 103 letters. Loop has 60 letters.
[2021-10-28 23:53:21,375 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:21,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 62 transitions. Stem has 43 letters. Loop has 120 letters.
[2021-10-28 23:53:21,377 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:21,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 653 states and 718 transitions.
[2021-10-28 23:53:21,383 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65
[2021-10-28 23:53:21,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 653 states to 490 states and 539 transitions.
[2021-10-28 23:53:21,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82
[2021-10-28 23:53:21,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85
[2021-10-28 23:53:21,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 490 states and 539 transitions.
[2021-10-28 23:53:21,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:21,388 INFO L681 BuchiCegarLoop]: Abstraction has 490 states and 539 transitions.
[2021-10-28 23:53:21,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states and 539 transitions.
[2021-10-28 23:53:21,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 342.
[2021-10-28 23:53:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 342 states have (on average 1.0760233918128654) internal successors, (368), 341 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:21,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 368 transitions.
[2021-10-28 23:53:21,398 INFO L704 BuchiCegarLoop]: Abstraction has 342 states and 368 transitions.
[2021-10-28 23:53:21,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-28 23:53:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2021-10-28 23:53:21,399 INFO L87 Difference]: Start difference. First operand 342 states and 368 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:21,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:21,444 INFO L93 Difference]: Finished difference Result 289 states and 317 transitions.
[2021-10-28 23:53:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-10-28 23:53:21,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 289 states and 317 transitions.
[2021-10-28 23:53:21,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67
[2021-10-28 23:53:21,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 289 states to 247 states and 275 transitions.
[2021-10-28 23:53:21,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57
[2021-10-28 23:53:21,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57
[2021-10-28 23:53:21,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 247 states and 275 transitions.
[2021-10-28 23:53:21,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:21,450 INFO L681 BuchiCegarLoop]: Abstraction has 247 states and 275 transitions.
[2021-10-28 23:53:21,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states and 275 transitions.
[2021-10-28 23:53:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 136.
[2021-10-28 23:53:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 136 states have (on average 1.1029411764705883) internal successors, (150), 135 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 150 transitions.
[2021-10-28 23:53:21,455 INFO L704 BuchiCegarLoop]: Abstraction has 136 states and 150 transitions.
[2021-10-28 23:53:21,455 INFO L587 BuchiCegarLoop]: Abstraction has 136 states and 150 transitions.
[2021-10-28 23:53:21,455 INFO L425 BuchiCegarLoop]: ======== Iteration 22============
[2021-10-28 23:53:21,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 150 transitions.
[2021-10-28 23:53:21,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65
[2021-10-28 23:53:21,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:21,456 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:21,458 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1]
[2021-10-28 23:53:21,458 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1]
[2021-10-28 23:53:21,458 INFO L791 eck$LassoCheckResult]: Stem: 10742#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 10743#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10802#L12 assume !(10 == main_~i~0); 10763#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 10748#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10749#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10819#L12 assume !(10 == main_~i~0); 10818#L12-2 assume !(0 == main_~i~0); 10817#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10816#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10815#L12 assume !(10 == main_~i~0); 10814#L12-2 assume !(0 == main_~i~0); 10813#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10812#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10811#L12 assume !(10 == main_~i~0); 10810#L12-2 assume !(0 == main_~i~0); 10809#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10806#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10801#L12 assume !(10 == main_~i~0); 10800#L12-2 assume !(0 == main_~i~0); 10798#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10796#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10794#L12 assume !(10 == main_~i~0); 10792#L12-2 assume !(0 == main_~i~0); 10790#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10788#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10786#L12 assume !(10 == main_~i~0); 10784#L12-2 assume !(0 == main_~i~0); 10782#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10780#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10778#L12 assume !(10 == main_~i~0); 10776#L12-2 assume !(0 == main_~i~0); 10774#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10772#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10770#L12 assume !(10 == main_~i~0); 10768#L12-2 assume !(0 == main_~i~0); 10757#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10765#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10764#L12 assume !(10 == main_~i~0); 10755#L12-2 assume !(0 == main_~i~0); 10756#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10820#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10807#L12 assume 10 == main_~i~0;main_~up~0 := 0; 10738#L12-2
[2021-10-28 23:53:21,458 INFO L793 eck$LassoCheckResult]: Loop: 10738#L12-2 assume !(0 == main_~i~0); 10739#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 10799#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10797#L12 assume !(10 == main_~i~0); 10795#L12-2 assume !(0 == main_~i~0); 10793#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 10791#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10789#L12 assume !(10 == main_~i~0); 10787#L12-2 assume !(0 == main_~i~0); 10785#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 10783#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10781#L12 assume !(10 == main_~i~0); 10779#L12-2 assume !(0 == main_~i~0); 10777#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 10775#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10773#L12 assume !(10 == main_~i~0); 10771#L12-2 assume !(0 == main_~i~0); 10769#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 10767#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10766#L12 assume !(10 == main_~i~0); 10760#L12-2 assume !(0 == main_~i~0); 10762#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 10761#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10758#L12 assume !(10 == main_~i~0); 10753#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 10752#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10744#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10745#L12 assume !(10 == main_~i~0); 10750#L12-2 assume !(0 == main_~i~0); 10754#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10873#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10872#L12 assume !(10 == main_~i~0); 10871#L12-2 assume !(0 == main_~i~0); 10870#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10869#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10868#L12 assume !(10 == main_~i~0); 10867#L12-2 assume !(0 == main_~i~0); 10866#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10865#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10864#L12 assume !(10 == main_~i~0); 10863#L12-2 assume !(0 == main_~i~0); 10862#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10861#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10860#L12 assume !(10 == main_~i~0); 10859#L12-2 assume !(0 == main_~i~0); 10858#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10857#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10856#L12 assume !(10 == main_~i~0); 10855#L12-2 assume !(0 == main_~i~0); 10854#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10853#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10852#L12 assume !(10 == main_~i~0); 10851#L12-2 assume !(0 == main_~i~0); 10850#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10849#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10848#L12 assume !(10 == main_~i~0); 10847#L12-2 assume !(0 == main_~i~0); 10846#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10845#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10843#L12 assume !(10 == main_~i~0); 10840#L12-2 assume !(0 == main_~i~0); 10841#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 10844#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10842#L12 assume 10 == main_~i~0;main_~up~0 := 0; 10738#L12-2
[2021-10-28 23:53:21,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:21,459 INFO L85 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 12 times
[2021-10-28 23:53:21,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:21,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641295675]
[2021-10-28 23:53:21,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:21,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:21,470 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:21,477 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:21,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:21,478 INFO L85 PathProgramCache]: Analyzing trace with hash 336435933, now seen corresponding path program 13 times
[2021-10-28 23:53:21,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:21,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405305497]
[2021-10-28 23:53:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:21,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:21,490 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:21,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:21,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:21,500 INFO L85 PathProgramCache]: Analyzing trace with hash 216392731, now seen corresponding path program 5 times
[2021-10-28 23:53:21,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:21,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824522539]
[2021-10-28 23:53:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:21,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:21,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 915 proven. 66 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:21,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:21,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824522539]
[2021-10-28 23:53:21,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824522539] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:21,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076503457]
[2021-10-28 23:53:21,580 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2021-10-28 23:53:21,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:21,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:21,582 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:21,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process
[2021-10-28 23:53:22,019 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s)
[2021-10-28 23:53:22,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:22,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-10-28 23:53:22,021 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:22,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 915 proven. 66 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:22,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076503457] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:22,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:22,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9
[2021-10-28 23:53:22,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144539999]
[2021-10-28 23:53:22,756 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:22,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:22,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:22,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:22,757 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:22,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:22,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:22,757 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:22,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration22_Loop
[2021-10-28 23:53:22,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:22,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:22,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:22,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:22,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:22,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:22,842 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:22,842 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:22,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:22,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:22,843 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:22,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process
[2021-10-28 23:53:22,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:22,844 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:22,859 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:22,859 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:22,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0
[2021-10-28 23:53:22,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:22,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:22,892 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:22,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process
[2021-10-28 23:53:22,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:22,894 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:22,909 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:22,909 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_21=0} Honda state: {v_rep~unnamed0~0~false_21=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:22,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:22,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:22,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:22,933 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:22,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process
[2021-10-28 23:53:22,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:22,935 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:22,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0
[2021-10-28 23:53:22,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:22,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:22,977 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:22,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process
[2021-10-28 23:53:22,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:22,978 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:22,988 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:23,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0
[2021-10-28 23:53:23,011 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:23,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:23,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:23,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:23,011 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:23,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:23,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:23,012 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:23,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration22_Loop
[2021-10-28 23:53:23,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:23,012 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:23,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:23,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:23,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:23,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:23,086 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:23,086 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:23,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:23,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:23,094 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:23,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:23,111 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:23,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:23,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:23,111 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 23:53:23,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:23,113 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 23:53:23,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:23,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process
[2021-10-28 23:53:23,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:23,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:23,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:23,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:23,144 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:23,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process
[2021-10-28 23:53:23,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:23,155 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:23,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:23,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:23,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:23,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:23,157 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:23,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:23,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:23,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:23,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:23,184 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:23,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process
[2021-10-28 23:53:23,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:23,194 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:23,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:23,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:23,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:23,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:23,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:23,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:23,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0
[2021-10-28 23:53:23,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:23,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:23,235 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:23,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process
[2021-10-28 23:53:23,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:23,244 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:23,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:23,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:23,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:23,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:23,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:23,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:23,248 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:23,250 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:23,250 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:23,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:23,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:23,269 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:23,274 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:23,274 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:23,274 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:23,274 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 8
Supporting invariants []
[2021-10-28 23:53:23,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process
[2021-10-28 23:53:23,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:23,314 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:23,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:23,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:23,343 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:23,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-10-28 23:53:23,541 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2021-10-28 23:53:23,819 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 8 loop predicates
[2021-10-28 23:53:23,819 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 136 states and 150 transitions. cyclomatic complexity: 18 Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:24,207 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 136 states and 150 transitions. cyclomatic complexity: 18. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 773 states and 853 transitions. Complement of second has 31 states.
[2021-10-28 23:53:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:24,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:24,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 71 transitions.
[2021-10-28 23:53:24,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 71 transitions. Stem has 43 letters. Loop has 64 letters.
[2021-10-28 23:53:24,209 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:24,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 71 transitions. Stem has 107 letters. Loop has 64 letters.
[2021-10-28 23:53:24,210 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:24,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 71 transitions. Stem has 43 letters. Loop has 128 letters.
[2021-10-28 23:53:24,212 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:24,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 773 states and 853 transitions.
[2021-10-28 23:53:24,226 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69
[2021-10-28 23:53:24,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 773 states to 554 states and 612 transitions.
[2021-10-28 23:53:24,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79
[2021-10-28 23:53:24,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82
[2021-10-28 23:53:24,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 554 states and 612 transitions.
[2021-10-28 23:53:24,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:24,232 INFO L681 BuchiCegarLoop]: Abstraction has 554 states and 612 transitions.
[2021-10-28 23:53:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states and 612 transitions.
[2021-10-28 23:53:24,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 350.
[2021-10-28 23:53:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 350 states have (on average 1.0771428571428572) internal successors, (377), 349 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:24,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 377 transitions.
[2021-10-28 23:53:24,241 INFO L704 BuchiCegarLoop]: Abstraction has 350 states and 377 transitions.
[2021-10-28 23:53:24,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:24,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-10-28 23:53:24,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72
[2021-10-28 23:53:24,242 INFO L87 Difference]: Start difference. First operand 350 states and 377 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:24,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:24,290 INFO L93 Difference]: Finished difference Result 317 states and 348 transitions.
[2021-10-28 23:53:24,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-10-28 23:53:24,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 348 transitions.
[2021-10-28 23:53:24,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 71
[2021-10-28 23:53:24,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 267 states and 298 transitions.
[2021-10-28 23:53:24,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57
[2021-10-28 23:53:24,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57
[2021-10-28 23:53:24,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 298 transitions.
[2021-10-28 23:53:24,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:24,297 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 298 transitions.
[2021-10-28 23:53:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 298 transitions.
[2021-10-28 23:53:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 144.
[2021-10-28 23:53:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.1041666666666667) internal successors, (159), 143 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 159 transitions.
[2021-10-28 23:53:24,301 INFO L704 BuchiCegarLoop]: Abstraction has 144 states and 159 transitions.
[2021-10-28 23:53:24,301 INFO L587 BuchiCegarLoop]: Abstraction has 144 states and 159 transitions.
[2021-10-28 23:53:24,301 INFO L425 BuchiCegarLoop]: ======== Iteration 23============
[2021-10-28 23:53:24,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 159 transitions.
[2021-10-28 23:53:24,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69
[2021-10-28 23:53:24,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:24,303 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:24,304 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1]
[2021-10-28 23:53:24,304 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [17, 16, 16, 10, 7, 1, 1]
[2021-10-28 23:53:24,304 INFO L791 eck$LassoCheckResult]: Stem: 13041#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 13042#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13108#L12 assume !(10 == main_~i~0); 13058#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 13043#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13044#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13118#L12 assume !(10 == main_~i~0); 13117#L12-2 assume !(0 == main_~i~0); 13116#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13115#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13114#L12 assume !(10 == main_~i~0); 13112#L12-2 assume !(0 == main_~i~0); 13109#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13105#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13104#L12 assume !(10 == main_~i~0); 13103#L12-2 assume !(0 == main_~i~0); 13101#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13099#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13097#L12 assume !(10 == main_~i~0); 13095#L12-2 assume !(0 == main_~i~0); 13093#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13091#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13089#L12 assume !(10 == main_~i~0); 13087#L12-2 assume !(0 == main_~i~0); 13085#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13083#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13081#L12 assume !(10 == main_~i~0); 13079#L12-2 assume !(0 == main_~i~0); 13077#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13075#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13073#L12 assume !(10 == main_~i~0); 13071#L12-2 assume !(0 == main_~i~0); 13069#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13067#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13065#L12 assume !(10 == main_~i~0); 13063#L12-2 assume !(0 == main_~i~0); 13051#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13060#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13059#L12 assume !(10 == main_~i~0); 13049#L12-2 assume !(0 == main_~i~0); 13050#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13119#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13110#L12 assume 10 == main_~i~0;main_~up~0 := 0; 13033#L12-2
[2021-10-28 23:53:24,304 INFO L793 eck$LassoCheckResult]: Loop: 13033#L12-2 assume !(0 == main_~i~0); 13034#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 13102#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13100#L12 assume !(10 == main_~i~0); 13098#L12-2 assume !(0 == main_~i~0); 13096#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 13094#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13092#L12 assume !(10 == main_~i~0); 13090#L12-2 assume !(0 == main_~i~0); 13088#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 13086#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13084#L12 assume !(10 == main_~i~0); 13082#L12-2 assume !(0 == main_~i~0); 13080#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 13078#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13076#L12 assume !(10 == main_~i~0); 13074#L12-2 assume !(0 == main_~i~0); 13072#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 13070#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13068#L12 assume !(10 == main_~i~0); 13066#L12-2 assume !(0 == main_~i~0); 13064#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 13062#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13061#L12 assume !(10 == main_~i~0); 13055#L12-2 assume !(0 == main_~i~0); 13057#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 13056#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13053#L12 assume !(10 == main_~i~0); 13048#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 13047#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13037#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13038#L12 assume !(10 == main_~i~0); 13045#L12-2 assume !(0 == main_~i~0); 13052#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13176#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13175#L12 assume !(10 == main_~i~0); 13174#L12-2 assume !(0 == main_~i~0); 13173#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13172#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13171#L12 assume !(10 == main_~i~0); 13170#L12-2 assume !(0 == main_~i~0); 13169#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13168#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13167#L12 assume !(10 == main_~i~0); 13166#L12-2 assume !(0 == main_~i~0); 13165#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13164#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13163#L12 assume !(10 == main_~i~0); 13162#L12-2 assume !(0 == main_~i~0); 13161#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13160#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13159#L12 assume !(10 == main_~i~0); 13158#L12-2 assume !(0 == main_~i~0); 13157#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13156#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13155#L12 assume !(10 == main_~i~0); 13154#L12-2 assume !(0 == main_~i~0); 13153#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13152#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13151#L12 assume !(10 == main_~i~0); 13150#L12-2 assume !(0 == main_~i~0); 13149#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13147#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13145#L12 assume !(10 == main_~i~0); 13143#L12-2 assume !(0 == main_~i~0); 13144#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 13148#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 13146#L12 assume 10 == main_~i~0;main_~up~0 := 0; 13033#L12-2
[2021-10-28 23:53:24,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:24,305 INFO L85 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 13 times
[2021-10-28 23:53:24,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:24,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183988044]
[2021-10-28 23:53:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:24,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:24,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0
[2021-10-28 23:53:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:24,408 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:24,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:24,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1847643336, now seen corresponding path program 14 times
[2021-10-28 23:53:24,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:24,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531870461]
[2021-10-28 23:53:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:24,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:24,434 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:24,444 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:24,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1125533446, now seen corresponding path program 6 times
[2021-10-28 23:53:24,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:24,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599841261]
[2021-10-28 23:53:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:24,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 996 proven. 91 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:24,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:24,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599841261]
[2021-10-28 23:53:24,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599841261] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:24,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232716576]
[2021-10-28 23:53:24,543 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2021-10-28 23:53:24,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:24,544 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:24,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process
[2021-10-28 23:53:25,212 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s)
[2021-10-28 23:53:25,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:25,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-28 23:53:25,216 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 996 proven. 91 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:25,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232716576] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:25,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:25,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10
[2021-10-28 23:53:25,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311661391]
[2021-10-28 23:53:25,905 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:25,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:25,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:25,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:25,906 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:25,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:25,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:25,906 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:25,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration23_Loop
[2021-10-28 23:53:25,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:25,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:25,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:25,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:25,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:25,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:25,966 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:25,966 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:25,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:25,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:25,967 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:25,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process
[2021-10-28 23:53:25,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:25,968 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:26,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0
[2021-10-28 23:53:26,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:26,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:26,003 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:26,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process
[2021-10-28 23:53:26,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:26,004 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:26,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:26,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:26,037 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:26,038 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:26,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:26,038 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:26,038 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:26,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:26,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:26,038 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:26,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration23_Loop
[2021-10-28 23:53:26,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:26,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:26,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:26,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:26,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:26,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:26,095 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:26,095 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:26,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:26,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:26,096 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:26,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process
[2021-10-28 23:53:26,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:26,105 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:26,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:26,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:26,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:26,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:26,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:26,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:26,108 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:26,110 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:26,110 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:26,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:26,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:26,111 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:26,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process
[2021-10-28 23:53:26,112 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:26,112 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:26,112 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:26,112 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 17
Supporting invariants []
[2021-10-28 23:53:26,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:26,132 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:26,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:26,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:26,152 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:26,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-28 23:53:26,283 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 373 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2021-10-28 23:53:26,563 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates
[2021-10-28 23:53:26,564 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 144 states and 159 transitions. cyclomatic complexity: 19 Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:26,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:27,082 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 144 states and 159 transitions. cyclomatic complexity: 19. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 909 states and 1006 transitions. Complement of second has 35 states.
[2021-10-28 23:53:27,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 18 states 1 stem states 16 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 80 transitions.
[2021-10-28 23:53:27,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 80 transitions. Stem has 43 letters. Loop has 68 letters.
[2021-10-28 23:53:27,084 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:27,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 80 transitions. Stem has 111 letters. Loop has 68 letters.
[2021-10-28 23:53:27,085 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:27,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 80 transitions. Stem has 43 letters. Loop has 136 letters.
[2021-10-28 23:53:27,087 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:27,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 909 states and 1006 transitions.
[2021-10-28 23:53:27,095 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73
[2021-10-28 23:53:27,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 909 states to 626 states and 694 transitions.
[2021-10-28 23:53:27,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76
[2021-10-28 23:53:27,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79
[2021-10-28 23:53:27,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 626 states and 694 transitions.
[2021-10-28 23:53:27,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:27,100 INFO L681 BuchiCegarLoop]: Abstraction has 626 states and 694 transitions.
[2021-10-28 23:53:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states and 694 transitions.
[2021-10-28 23:53:27,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 358.
[2021-10-28 23:53:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 358 states have (on average 1.0782122905027933) internal successors, (386), 357 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:27,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 386 transitions.
[2021-10-28 23:53:27,110 INFO L704 BuchiCegarLoop]: Abstraction has 358 states and 386 transitions.
[2021-10-28 23:53:27,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-28 23:53:27,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90
[2021-10-28 23:53:27,111 INFO L87 Difference]: Start difference. First operand 358 states and 386 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:27,169 INFO L93 Difference]: Finished difference Result 345 states and 379 transitions.
[2021-10-28 23:53:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-10-28 23:53:27,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 345 states and 379 transitions.
[2021-10-28 23:53:27,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75
[2021-10-28 23:53:27,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 345 states to 287 states and 321 transitions.
[2021-10-28 23:53:27,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57
[2021-10-28 23:53:27,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57
[2021-10-28 23:53:27,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 287 states and 321 transitions.
[2021-10-28 23:53:27,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:27,176 INFO L681 BuchiCegarLoop]: Abstraction has 287 states and 321 transitions.
[2021-10-28 23:53:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states and 321 transitions.
[2021-10-28 23:53:27,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 152.
[2021-10-28 23:53:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.105263157894737) internal successors, (168), 151 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:27,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 168 transitions.
[2021-10-28 23:53:27,181 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 168 transitions.
[2021-10-28 23:53:27,181 INFO L587 BuchiCegarLoop]: Abstraction has 152 states and 168 transitions.
[2021-10-28 23:53:27,181 INFO L425 BuchiCegarLoop]: ======== Iteration 24============
[2021-10-28 23:53:27,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 168 transitions.
[2021-10-28 23:53:27,182 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 73
[2021-10-28 23:53:27,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:27,183 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:27,184 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1]
[2021-10-28 23:53:27,184 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [18, 17, 17, 10, 8, 1, 1]
[2021-10-28 23:53:27,184 INFO L791 eck$LassoCheckResult]: Stem: 15549#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 15550#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15623#L12 assume !(10 == main_~i~0); 15566#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 15551#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15552#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15630#L12 assume !(10 == main_~i~0); 15629#L12-2 assume !(0 == main_~i~0); 15627#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15625#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15620#L12 assume !(10 == main_~i~0); 15619#L12-2 assume !(0 == main_~i~0); 15617#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15615#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15613#L12 assume !(10 == main_~i~0); 15611#L12-2 assume !(0 == main_~i~0); 15609#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15607#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15605#L12 assume !(10 == main_~i~0); 15603#L12-2 assume !(0 == main_~i~0); 15601#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15599#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15597#L12 assume !(10 == main_~i~0); 15595#L12-2 assume !(0 == main_~i~0); 15593#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15591#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15589#L12 assume !(10 == main_~i~0); 15587#L12-2 assume !(0 == main_~i~0); 15585#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15583#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15581#L12 assume !(10 == main_~i~0); 15579#L12-2 assume !(0 == main_~i~0); 15577#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15575#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15573#L12 assume !(10 == main_~i~0); 15571#L12-2 assume !(0 == main_~i~0); 15560#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15568#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15567#L12 assume !(10 == main_~i~0); 15558#L12-2 assume !(0 == main_~i~0); 15559#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15631#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15624#L12 assume 10 == main_~i~0;main_~up~0 := 0; 15541#L12-2
[2021-10-28 23:53:27,184 INFO L793 eck$LassoCheckResult]: Loop: 15541#L12-2 assume !(0 == main_~i~0); 15542#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 15618#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15616#L12 assume !(10 == main_~i~0); 15614#L12-2 assume !(0 == main_~i~0); 15612#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 15610#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15608#L12 assume !(10 == main_~i~0); 15606#L12-2 assume !(0 == main_~i~0); 15604#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 15602#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15600#L12 assume !(10 == main_~i~0); 15598#L12-2 assume !(0 == main_~i~0); 15596#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 15594#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15592#L12 assume !(10 == main_~i~0); 15590#L12-2 assume !(0 == main_~i~0); 15588#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 15586#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15584#L12 assume !(10 == main_~i~0); 15582#L12-2 assume !(0 == main_~i~0); 15580#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 15578#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15576#L12 assume !(10 == main_~i~0); 15574#L12-2 assume !(0 == main_~i~0); 15572#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 15570#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15569#L12 assume !(10 == main_~i~0); 15563#L12-2 assume !(0 == main_~i~0); 15565#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 15564#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15561#L12 assume !(10 == main_~i~0); 15556#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 15555#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15545#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15546#L12 assume !(10 == main_~i~0); 15553#L12-2 assume !(0 == main_~i~0); 15557#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15692#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15691#L12 assume !(10 == main_~i~0); 15690#L12-2 assume !(0 == main_~i~0); 15689#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15688#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15687#L12 assume !(10 == main_~i~0); 15686#L12-2 assume !(0 == main_~i~0); 15685#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15684#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15683#L12 assume !(10 == main_~i~0); 15682#L12-2 assume !(0 == main_~i~0); 15681#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15680#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15679#L12 assume !(10 == main_~i~0); 15678#L12-2 assume !(0 == main_~i~0); 15677#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15676#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15675#L12 assume !(10 == main_~i~0); 15674#L12-2 assume !(0 == main_~i~0); 15673#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15672#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15671#L12 assume !(10 == main_~i~0); 15670#L12-2 assume !(0 == main_~i~0); 15669#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15668#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15667#L12 assume !(10 == main_~i~0); 15666#L12-2 assume !(0 == main_~i~0); 15665#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15663#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15661#L12 assume !(10 == main_~i~0); 15659#L12-2 assume !(0 == main_~i~0); 15660#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 15664#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 15662#L12 assume 10 == main_~i~0;main_~up~0 := 0; 15541#L12-2
[2021-10-28 23:53:27,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 14 times
[2021-10-28 23:53:27,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:27,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842291492]
[2021-10-28 23:53:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:27,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:27,196 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:27,203 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:27,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:27,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1176703283, now seen corresponding path program 15 times
[2021-10-28 23:53:27,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:27,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883061181]
[2021-10-28 23:53:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:27,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:27,216 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:27,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:27,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:27,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1395997809, now seen corresponding path program 7 times
[2021-10-28 23:53:27,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:27,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356877876]
[2021-10-28 23:53:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:27,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 1077 proven. 120 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:27,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:27,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356877876]
[2021-10-28 23:53:27,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356877876] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:27,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202071317]
[2021-10-28 23:53:27,368 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2021-10-28 23:53:27,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:27,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:27,370 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:27,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process
[2021-10-28 23:53:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:27,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-10-28 23:53:27,952 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 1077 proven. 120 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:28,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202071317] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:28,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:28,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11
[2021-10-28 23:53:28,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916916102]
[2021-10-28 23:53:28,742 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:28,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:28,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:28,742 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:28,742 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:28,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:28,743 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:28,743 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:28,743 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration24_Loop
[2021-10-28 23:53:28,743 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:28,743 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:28,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:28,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:28,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:28,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:28,814 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:28,814 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:28,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:28,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:28,816 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:28,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process
[2021-10-28 23:53:28,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:28,817 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:28,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:28,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:28,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:28,858 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:28,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process
[2021-10-28 23:53:28,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:28,859 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:28,870 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:28,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Ended with exit code 0
[2021-10-28 23:53:28,894 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:28,894 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:28,894 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:28,894 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:28,894 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:28,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:28,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:28,894 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:28,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration24_Loop
[2021-10-28 23:53:28,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:28,894 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:28,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:28,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:28,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:28,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:28,975 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:28,975 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:28,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:28,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:28,976 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:28,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process
[2021-10-28 23:53:28,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:28,986 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:28,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:28,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:28,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:28,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:28,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:28,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:29,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Ended with exit code 0
[2021-10-28 23:53:29,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:29,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:29,017 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:29,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process
[2021-10-28 23:53:29,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:29,030 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:29,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:29,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:29,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:29,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:29,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:29,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:29,034 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:29,036 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:29,036 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:29,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:29,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:29,038 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:29,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process
[2021-10-28 23:53:29,039 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:29,039 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:29,039 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:29,039 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 9
Supporting invariants []
[2021-10-28 23:53:29,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Ended with exit code 0
[2021-10-28 23:53:29,067 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:29,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:29,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:29,099 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:29,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core
[2021-10-28 23:53:29,246 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2021-10-28 23:53:29,545 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 10 loop predicates
[2021-10-28 23:53:29,545 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 152 states and 168 transitions. cyclomatic complexity: 20 Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:29,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:29,947 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 152 states and 168 transitions. cyclomatic complexity: 20. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1066 states and 1182 transitions. Complement of second has 39 states.
[2021-10-28 23:53:29,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 20 states 1 stem states 18 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 89 transitions.
[2021-10-28 23:53:29,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 89 transitions. Stem has 43 letters. Loop has 72 letters.
[2021-10-28 23:53:29,950 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:29,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 89 transitions. Stem has 115 letters. Loop has 72 letters.
[2021-10-28 23:53:29,951 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:29,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 89 transitions. Stem has 43 letters. Loop has 144 letters.
[2021-10-28 23:53:29,953 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:29,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1066 states and 1182 transitions.
[2021-10-28 23:53:29,960 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77
[2021-10-28 23:53:29,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1066 states to 711 states and 790 transitions.
[2021-10-28 23:53:29,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73
[2021-10-28 23:53:29,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76
[2021-10-28 23:53:29,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 711 states and 790 transitions.
[2021-10-28 23:53:29,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:29,966 INFO L681 BuchiCegarLoop]: Abstraction has 711 states and 790 transitions.
[2021-10-28 23:53:29,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states and 790 transitions.
[2021-10-28 23:53:29,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 370.
[2021-10-28 23:53:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 370 states have (on average 1.0783783783783785) internal successors, (399), 369 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 399 transitions.
[2021-10-28 23:53:29,976 INFO L704 BuchiCegarLoop]: Abstraction has 370 states and 399 transitions.
[2021-10-28 23:53:29,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:29,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-10-28 23:53:29,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110
[2021-10-28 23:53:29,977 INFO L87 Difference]: Start difference. First operand 370 states and 399 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:30,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:30,042 INFO L93 Difference]: Finished difference Result 373 states and 410 transitions.
[2021-10-28 23:53:30,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-10-28 23:53:30,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 373 states and 410 transitions.
[2021-10-28 23:53:30,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79
[2021-10-28 23:53:30,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 373 states to 307 states and 344 transitions.
[2021-10-28 23:53:30,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57
[2021-10-28 23:53:30,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57
[2021-10-28 23:53:30,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 307 states and 344 transitions.
[2021-10-28 23:53:30,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:30,048 INFO L681 BuchiCegarLoop]: Abstraction has 307 states and 344 transitions.
[2021-10-28 23:53:30,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states and 344 transitions.
[2021-10-28 23:53:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 160.
[2021-10-28 23:53:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 1.10625) internal successors, (177), 159 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:30,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 177 transitions.
[2021-10-28 23:53:30,053 INFO L704 BuchiCegarLoop]: Abstraction has 160 states and 177 transitions.
[2021-10-28 23:53:30,054 INFO L587 BuchiCegarLoop]: Abstraction has 160 states and 177 transitions.
[2021-10-28 23:53:30,054 INFO L425 BuchiCegarLoop]: ======== Iteration 25============
[2021-10-28 23:53:30,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 177 transitions.
[2021-10-28 23:53:30,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77
[2021-10-28 23:53:30,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:30,055 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:30,056 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1]
[2021-10-28 23:53:30,056 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [19, 18, 18, 10, 9, 1, 1]
[2021-10-28 23:53:30,056 INFO L791 eck$LassoCheckResult]: Stem: 18295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 18296#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18378#L12 assume !(10 == main_~i~0); 18313#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 18297#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18298#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18375#L12 assume !(10 == main_~i~0); 18374#L12-2 assume !(0 == main_~i~0); 18372#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18370#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18368#L12 assume !(10 == main_~i~0); 18366#L12-2 assume !(0 == main_~i~0); 18364#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18362#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18360#L12 assume !(10 == main_~i~0); 18358#L12-2 assume !(0 == main_~i~0); 18356#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18354#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18352#L12 assume !(10 == main_~i~0); 18350#L12-2 assume !(0 == main_~i~0); 18348#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18346#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18344#L12 assume !(10 == main_~i~0); 18342#L12-2 assume !(0 == main_~i~0); 18340#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18338#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18336#L12 assume !(10 == main_~i~0); 18334#L12-2 assume !(0 == main_~i~0); 18332#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18330#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18328#L12 assume !(10 == main_~i~0); 18326#L12-2 assume !(0 == main_~i~0); 18324#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18322#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18320#L12 assume !(10 == main_~i~0); 18318#L12-2 assume !(0 == main_~i~0); 18307#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18315#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18314#L12 assume !(10 == main_~i~0); 18305#L12-2 assume !(0 == main_~i~0); 18306#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18382#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18379#L12 assume 10 == main_~i~0;main_~up~0 := 0; 18287#L12-2
[2021-10-28 23:53:30,057 INFO L793 eck$LassoCheckResult]: Loop: 18287#L12-2 assume !(0 == main_~i~0); 18288#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18373#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18371#L12 assume !(10 == main_~i~0); 18369#L12-2 assume !(0 == main_~i~0); 18367#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18365#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18363#L12 assume !(10 == main_~i~0); 18361#L12-2 assume !(0 == main_~i~0); 18359#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18357#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18355#L12 assume !(10 == main_~i~0); 18353#L12-2 assume !(0 == main_~i~0); 18351#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18349#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18347#L12 assume !(10 == main_~i~0); 18345#L12-2 assume !(0 == main_~i~0); 18343#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18341#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18339#L12 assume !(10 == main_~i~0); 18337#L12-2 assume !(0 == main_~i~0); 18335#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18333#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18331#L12 assume !(10 == main_~i~0); 18329#L12-2 assume !(0 == main_~i~0); 18327#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18325#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18323#L12 assume !(10 == main_~i~0); 18321#L12-2 assume !(0 == main_~i~0); 18319#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18317#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18316#L12 assume !(10 == main_~i~0); 18310#L12-2 assume !(0 == main_~i~0); 18312#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 18311#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18308#L12 assume !(10 == main_~i~0); 18303#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 18304#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18291#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18292#L12 assume !(10 == main_~i~0); 18299#L12-2 assume !(0 == main_~i~0); 18301#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18302#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18446#L12 assume !(10 == main_~i~0); 18445#L12-2 assume !(0 == main_~i~0); 18444#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18443#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18442#L12 assume !(10 == main_~i~0); 18441#L12-2 assume !(0 == main_~i~0); 18440#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18439#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18438#L12 assume !(10 == main_~i~0); 18437#L12-2 assume !(0 == main_~i~0); 18436#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18435#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18434#L12 assume !(10 == main_~i~0); 18433#L12-2 assume !(0 == main_~i~0); 18432#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18431#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18430#L12 assume !(10 == main_~i~0); 18429#L12-2 assume !(0 == main_~i~0); 18428#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18427#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18426#L12 assume !(10 == main_~i~0); 18425#L12-2 assume !(0 == main_~i~0); 18424#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18423#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18422#L12 assume !(10 == main_~i~0); 18421#L12-2 assume !(0 == main_~i~0); 18420#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18418#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18416#L12 assume !(10 == main_~i~0); 18414#L12-2 assume !(0 == main_~i~0); 18415#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 18419#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 18417#L12 assume 10 == main_~i~0;main_~up~0 := 0; 18287#L12-2
[2021-10-28 23:53:30,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:30,057 INFO L85 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 15 times
[2021-10-28 23:53:30,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:30,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949429826]
[2021-10-28 23:53:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:30,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:30,068 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:30,074 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:30,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:30,075 INFO L85 PathProgramCache]: Analyzing trace with hash 289875998, now seen corresponding path program 16 times
[2021-10-28 23:53:30,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:30,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452507560]
[2021-10-28 23:53:30,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:30,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:30,090 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:30,107 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:30,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:30,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1498053540, now seen corresponding path program 8 times
[2021-10-28 23:53:30,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:30,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570305432]
[2021-10-28 23:53:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:30,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 1158 proven. 153 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:30,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:53:30,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570305432]
[2021-10-28 23:53:30,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570305432] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:30,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100442124]
[2021-10-28 23:53:30,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:53:30,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:53:30,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:30,270 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:53:30,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process
[2021-10-28 23:53:31,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:53:31,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:53:31,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-28 23:53:31,206 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:31,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 1158 proven. 153 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2021-10-28 23:53:31,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100442124] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:53:31,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:53:31,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12
[2021-10-28 23:53:31,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51084253]
[2021-10-28 23:53:31,971 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:31,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:31,971 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:31,971 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:31,971 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 23:53:31,972 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:31,972 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:31,972 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:31,972 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration25_Loop
[2021-10-28 23:53:31,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:31,972 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:31,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:31,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:31,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:31,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:32,024 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:32,024 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 23:53:32,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:32,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:32,025 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:32,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process
[2021-10-28 23:53:32,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:32,026 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:32,041 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 23:53:32,041 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_27=1} Honda state: {v_rep~unnamed0~0~true_27=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 23:53:32,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:32,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:32,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:32,065 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:32,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process
[2021-10-28 23:53:32,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 23:53:32,067 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:32,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:32,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:32,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:32,098 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:32,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process
[2021-10-28 23:53:32,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 23:53:32,105 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 23:53:32,115 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 23:53:32,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0
[2021-10-28 23:53:32,138 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 23:53:32,139 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 23:53:32,139 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 23:53:32,139 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 23:53:32,139 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 23:53:32,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:32,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 23:53:32,139 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 23:53:32,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration25_Loop
[2021-10-28 23:53:32,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 23:53:32,139 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 23:53:32,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:32,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:32,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:32,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 23:53:32,191 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 23:53:32,191 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 23:53:32,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:32,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:32,192 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:32,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process
[2021-10-28 23:53:32,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:32,201 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:32,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:32,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:32,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:32,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 23:53:32,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 23:53:32,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 23:53:32,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Ended with exit code 0
[2021-10-28 23:53:32,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:32,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:32,229 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:32,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process
[2021-10-28 23:53:32,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 23:53:32,239 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 23:53:32,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 23:53:32,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 23:53:32,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 23:53:32,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 23:53:32,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 23:53:32,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 23:53:32,241 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 23:53:32,243 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 23:53:32,243 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 23:53:32,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:53:32,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:53:32,245 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:53:32,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process
[2021-10-28 23:53:32,250 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 23:53:32,250 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 23:53:32,250 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 23:53:32,250 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19
Supporting invariants []
[2021-10-28 23:53:32,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:32,272 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 23:53:32,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:32,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 23:53:32,296 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:53:32,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 13 conjunts are in the unsatisfiable core
[2021-10-28 23:53:32,454 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:53:32,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 513 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2021-10-28 23:53:32,838 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 11 loop predicates
[2021-10-28 23:53:32,839 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 160 states and 177 transitions. cyclomatic complexity: 21 Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:33,539 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 160 states and 177 transitions. cyclomatic complexity: 21. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1253 states and 1393 transitions. Complement of second has 43 states.
[2021-10-28 23:53:33,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 22 states 1 stem states 20 non-accepting loop states 1 accepting loop states
[2021-10-28 23:53:33,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 98 transitions.
[2021-10-28 23:53:33,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 98 transitions. Stem has 43 letters. Loop has 76 letters.
[2021-10-28 23:53:33,541 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:33,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 98 transitions. Stem has 119 letters. Loop has 76 letters.
[2021-10-28 23:53:33,542 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:33,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 98 transitions. Stem has 43 letters. Loop has 152 letters.
[2021-10-28 23:53:33,544 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 23:53:33,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1253 states and 1393 transitions.
[2021-10-28 23:53:33,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81
[2021-10-28 23:53:33,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1253 states to 817 states and 911 transitions.
[2021-10-28 23:53:33,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74
[2021-10-28 23:53:33,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78
[2021-10-28 23:53:33,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 817 states and 911 transitions.
[2021-10-28 23:53:33,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:33,561 INFO L681 BuchiCegarLoop]: Abstraction has 817 states and 911 transitions.
[2021-10-28 23:53:33,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states and 911 transitions.
[2021-10-28 23:53:33,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 394.
[2021-10-28 23:53:33,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 394 states have (on average 1.0812182741116751) internal successors, (426), 393 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:33,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 426 transitions.
[2021-10-28 23:53:33,572 INFO L704 BuchiCegarLoop]: Abstraction has 394 states and 426 transitions.
[2021-10-28 23:53:33,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:53:33,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-10-28 23:53:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132
[2021-10-28 23:53:33,574 INFO L87 Difference]: Start difference. First operand 394 states and 426 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:33,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:53:33,648 INFO L93 Difference]: Finished difference Result 401 states and 441 transitions.
[2021-10-28 23:53:33,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-10-28 23:53:33,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 401 states and 441 transitions.
[2021-10-28 23:53:33,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 83
[2021-10-28 23:53:33,654 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 401 states to 327 states and 367 transitions.
[2021-10-28 23:53:33,654 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57
[2021-10-28 23:53:33,654 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57
[2021-10-28 23:53:33,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 327 states and 367 transitions.
[2021-10-28 23:53:33,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 23:53:33,655 INFO L681 BuchiCegarLoop]: Abstraction has 327 states and 367 transitions.
[2021-10-28 23:53:33,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states and 367 transitions.
[2021-10-28 23:53:33,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 168.
[2021-10-28 23:53:33,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.1071428571428572) internal successors, (186), 167 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:53:33,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 186 transitions.
[2021-10-28 23:53:33,661 INFO L704 BuchiCegarLoop]: Abstraction has 168 states and 186 transitions.
[2021-10-28 23:53:33,661 INFO L587 BuchiCegarLoop]: Abstraction has 168 states and 186 transitions.
[2021-10-28 23:53:33,661 INFO L425 BuchiCegarLoop]: ======== Iteration 26============
[2021-10-28 23:53:33,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 186 transitions.
[2021-10-28 23:53:33,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81
[2021-10-28 23:53:33,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:53:33,662 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:53:33,663 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1]
[2021-10-28 23:53:33,663 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1]
[2021-10-28 23:53:33,663 INFO L791 eck$LassoCheckResult]: Stem: 21321#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 21322#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21406#L12 assume !(10 == main_~i~0); 21338#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 21323#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21324#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21401#L12 assume !(10 == main_~i~0); 21399#L12-2 assume !(0 == main_~i~0); 21397#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21395#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21393#L12 assume !(10 == main_~i~0); 21391#L12-2 assume !(0 == main_~i~0); 21389#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21387#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21385#L12 assume !(10 == main_~i~0); 21383#L12-2 assume !(0 == main_~i~0); 21381#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21379#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21377#L12 assume !(10 == main_~i~0); 21375#L12-2 assume !(0 == main_~i~0); 21373#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21371#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21369#L12 assume !(10 == main_~i~0); 21367#L12-2 assume !(0 == main_~i~0); 21365#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21363#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21361#L12 assume !(10 == main_~i~0); 21359#L12-2 assume !(0 == main_~i~0); 21357#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21355#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21353#L12 assume !(10 == main_~i~0); 21351#L12-2 assume !(0 == main_~i~0); 21349#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21347#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21345#L12 assume !(10 == main_~i~0); 21343#L12-2 assume !(0 == main_~i~0); 21332#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21340#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21339#L12 assume !(10 == main_~i~0); 21330#L12-2 assume !(0 == main_~i~0); 21331#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21411#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21405#L12 assume 10 == main_~i~0;main_~up~0 := 0; 21313#L12-2
[2021-10-28 23:53:33,664 INFO L793 eck$LassoCheckResult]: Loop: 21313#L12-2 assume !(0 == main_~i~0); 21314#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21404#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21403#L12 assume !(10 == main_~i~0); 21402#L12-2 assume !(0 == main_~i~0); 21400#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21398#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21396#L12 assume !(10 == main_~i~0); 21394#L12-2 assume !(0 == main_~i~0); 21392#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21390#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21388#L12 assume !(10 == main_~i~0); 21386#L12-2 assume !(0 == main_~i~0); 21384#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21382#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21380#L12 assume !(10 == main_~i~0); 21378#L12-2 assume !(0 == main_~i~0); 21376#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21374#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21372#L12 assume !(10 == main_~i~0); 21370#L12-2 assume !(0 == main_~i~0); 21368#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21366#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21364#L12 assume !(10 == main_~i~0); 21362#L12-2 assume !(0 == main_~i~0); 21360#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21358#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21356#L12 assume !(10 == main_~i~0); 21354#L12-2 assume !(0 == main_~i~0); 21352#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21350#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21348#L12 assume !(10 == main_~i~0); 21346#L12-2 assume !(0 == main_~i~0); 21344#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21342#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21341#L12 assume !(10 == main_~i~0); 21335#L12-2 assume !(0 == main_~i~0); 21337#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 21336#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21333#L12 assume !(10 == main_~i~0); 21328#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 21327#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21317#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21318#L12 assume !(10 == main_~i~0); 21325#L12-2 assume !(0 == main_~i~0); 21329#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21480#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21479#L12 assume !(10 == main_~i~0); 21478#L12-2 assume !(0 == main_~i~0); 21477#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21476#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21475#L12 assume !(10 == main_~i~0); 21474#L12-2 assume !(0 == main_~i~0); 21473#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21472#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21471#L12 assume !(10 == main_~i~0); 21470#L12-2 assume !(0 == main_~i~0); 21469#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21468#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21467#L12 assume !(10 == main_~i~0); 21466#L12-2 assume !(0 == main_~i~0); 21465#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21464#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21463#L12 assume !(10 == main_~i~0); 21462#L12-2 assume !(0 == main_~i~0); 21461#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21460#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21459#L12 assume !(10 == main_~i~0); 21458#L12-2 assume !(0 == main_~i~0); 21457#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21456#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21455#L12 assume !(10 == main_~i~0); 21454#L12-2 assume !(0 == main_~i~0); 21453#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21452#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21450#L12 assume !(10 == main_~i~0); 21447#L12-2 assume !(0 == main_~i~0); 21448#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 21451#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 21449#L12 assume 10 == main_~i~0;main_~up~0 := 0; 21313#L12-2
[2021-10-28 23:53:33,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:33,664 INFO L85 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 16 times
[2021-10-28 23:53:33,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:33,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001368965]
[2021-10-28 23:53:33,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:33,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:33,675 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:33,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:33,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:33,682 INFO L85 PathProgramCache]: Analyzing trace with hash -312487543, now seen corresponding path program 17 times
[2021-10-28 23:53:33,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:33,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079717394]
[2021-10-28 23:53:33,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:33,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:33,737 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:33,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:33,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:53:33,749 INFO L85 PathProgramCache]: Analyzing trace with hash 799661767, now seen corresponding path program 9 times
[2021-10-28 23:53:33,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:53:33,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053953512]
[2021-10-28 23:53:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:53:33,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:53:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:33,766 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:53:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:53:33,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:53:34,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:53:34 BoogieIcfgContainer
[2021-10-28 23:53:34,546 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2021-10-28 23:53:34,547 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:53:34,547 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:53:34,547 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:53:34,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:59" (3/4) ...
[2021-10-28 23:53:34,550 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample
[2021-10-28 23:53:34,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:53:34,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:53:34,623 INFO L168 Benchmark]: Toolchain (without parser) took 35881.45 ms. Allocated memory was 107.0 MB in the beginning and 425.7 MB in the end (delta: 318.8 MB). Free memory was 73.6 MB in the beginning and 172.4 MB in the end (delta: -98.8 MB). Peak memory consumption was 219.7 MB. Max. memory is 16.1 GB.
[2021-10-28 23:53:34,624 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 107.0 MB. Free memory is still 60.6 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:53:34,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.50 ms. Allocated memory is still 107.0 MB. Free memory was 73.4 MB in the beginning and 84.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:53:34,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.06 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 82.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:53:34,625 INFO L168 Benchmark]: Boogie Preprocessor took 33.53 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:53:34,626 INFO L168 Benchmark]: RCFGBuilder took 333.69 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 74.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:53:34,626 INFO L168 Benchmark]: BuchiAutomizer took 35128.09 ms. Allocated memory was 107.0 MB in the beginning and 425.7 MB in the end (delta: 318.8 MB). Free memory was 74.0 MB in the beginning and 176.6 MB in the end (delta: -102.6 MB). Peak memory consumption was 302.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:53:34,627 INFO L168 Benchmark]: Witness Printer took 74.13 ms. Allocated memory is still 425.7 MB. Free memory was 176.6 MB in the beginning and 172.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 23:53:34,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34 ms. Allocated memory is still 107.0 MB. Free memory is still 60.6 MB. There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 242.50 ms. Allocated memory is still 107.0 MB. Free memory was 73.4 MB in the beginning and 84.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 54.06 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 82.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Boogie Preprocessor took 33.53 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB.
* RCFGBuilder took 333.69 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 74.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* BuchiAutomizer took 35128.09 ms. Allocated memory was 107.0 MB in the beginning and 425.7 MB in the end (delta: 318.8 MB). Free memory was 74.0 MB in the beginning and 176.6 MB in the end (delta: -102.6 MB). Peak memory consumption was 302.4 MB. Max. memory is 16.1 GB.
* Witness Printer took 74.13 ms. Allocated memory is still 425.7 MB. Free memory was 176.6 MB in the beginning and 172.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 36 terminating modules (22 trivial, 13 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 17 and consists of 5 locations. One deterministic module has affine ranking function -1 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 17 and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 13 and consists of 10 locations. One deterministic module has affine ranking function 7 + -1 * i and consists of 12 locations. One deterministic module has affine ranking function -2 * i + 15 and consists of 14 locations. One deterministic module has affine ranking function -1 * i + 8 and consists of 16 locations. One deterministic module has affine ranking function -2 * i + 17 and consists of 18 locations. One deterministic module has affine ranking function 9 + -1 * i and consists of 20 locations. One deterministic module has affine ranking function 19 + -2 * i and consists of 22 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 22 modules have a trivial ranking function, the largest among these consists of 12 locations. The remainder module has 168 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 35.0s and 26 iterations. TraceHistogramMax:20. Analysis of lassos took 25.7s. Construction of modules took 1.5s. Büchi inclusion checks took 7.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 35. Automata minimization 0.2s AutomataMinimizationTime, 36 MinimizatonAttempts, 2596 StatesRemovedByMinimization, 35 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 168 states and ocurred in iteration 25. Nontrivial modules had stage [13, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1197/3416 HoareTripleCheckerStatistics: 274 SDtfs, 748 SDslu, 9 SDs, 0 SdLazy, 1926 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT3 conc0 concLT9 SILN0 SILU0 SILI8 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax162 hnf97 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq178 hnf94 smp83 dnf139 smp96 tf108 neg93 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 23 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 14 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.2s
- TerminationAnalysisResult: Nontermination possible
Buchi Automizer proved that your program is nonterminating for some inputs
- FixpointNonTerminationResult [Line: 15]: Nontermination argument in form of an infinite program execution.
Nontermination argument in form of an infinite execution
State at position 0 is
{}
State at position 1 is
{up=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55912432=0, \result=0, i=10}
- StatisticsResult: NonterminationArgumentStatistics
Fixpoint
- NonterminatingLassoResult [Line: 11]: Nonterminating execution
Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L6] int i;
[L7] int up;
[L8] i = __VERIFIER_nondet_int()
[L9] up = 0
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND TRUE i == 0
[L16] up = 1
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND TRUE i == 10
[L13] up = 0
Loop:
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND FALSE !(up == 1)
[L21] i = i-1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND TRUE i == 0
[L16] up = 1
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND FALSE !(i == 10)
[L15] COND FALSE !(i == 0)
[L18] COND TRUE up == 1
[L19] i = i+1
[L11] COND TRUE 0 <= i && i <= 10
[L12] COND TRUE i == 10
[L13] up = 0
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
[2021-10-28 23:53:34,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:34,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0
[2021-10-28 23:53:35,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0
[2021-10-28 23:53:35,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0
[2021-10-28 23:53:35,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0
[2021-10-28 23:53:35,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0
[2021-10-28 23:53:35,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0
[2021-10-28 23:53:36,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0
[2021-10-28 23:53:36,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0
[2021-10-28 23:53:36,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0
[2021-10-28 23:53:36,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0
[2021-10-28 23:53:36,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0
[2021-10-28 23:53:37,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:37,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0
[2021-10-28 23:53:37,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:37,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:37,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0
[2021-10-28 23:53:38,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:38,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0
[2021-10-28 23:53:38,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:38,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0
[2021-10-28 23:53:38,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:39,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:39,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0
[2021-10-28 23:53:39,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0
[2021-10-28 23:53:39,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518f93b-2f9a-4a4a-9139-2e321acc55c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0
Received shutdown request...