./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.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_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/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_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/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_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/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 0d6528b7cc69fe4ab1ae178e84639571fa28bd084493b226ea467e9ac1e22d5f
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-29 00:00:00,992 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-29 00:00:00,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-29 00:00:01,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-29 00:00:01,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-29 00:00:01,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-29 00:00:01,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-29 00:00:01,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-29 00:00:01,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-29 00:00:01,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-29 00:00:01,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-29 00:00:01,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-29 00:00:01,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-29 00:00:01,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-29 00:00:01,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-29 00:00:01,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-29 00:00:01,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-29 00:00:01,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-29 00:00:01,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-29 00:00:01,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-29 00:00:01,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-29 00:00:01,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-29 00:00:01,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-29 00:00:01,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-29 00:00:01,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-29 00:00:01,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-29 00:00:01,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-29 00:00:01,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-29 00:00:01,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-29 00:00:01,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-29 00:00:01,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-29 00:00:01,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-29 00:00:01,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-29 00:00:01,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-29 00:00:01,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-29 00:00:01,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-29 00:00:01,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-29 00:00:01,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-29 00:00:01,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-29 00:00:01,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-29 00:00:01,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-29 00:00:01,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf
[2021-10-29 00:00:01,132 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-29 00:00:01,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-29 00:00:01,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-29 00:00:01,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-29 00:00:01,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-29 00:00:01,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-29 00:00:01,134 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-29 00:00:01,135 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-10-29 00:00:01,135 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2021-10-29 00:00:01,135 INFO L138 SettingsManager]: * Use old map elimination=false
[2021-10-29 00:00:01,135 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2021-10-29 00:00:01,135 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2021-10-29 00:00:01,136 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2021-10-29 00:00:01,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-29 00:00:01,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-10-29 00:00:01,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-29 00:00:01,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-29 00:00:01,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2021-10-29 00:00:01,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-10-29 00:00:01,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2021-10-29 00:00:01,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-29 00:00:01,143 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2021-10-29 00:00:01,143 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-29 00:00:01,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2021-10-29 00:00:01,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-29 00:00:01,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-29 00:00:01,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-29 00:00:01,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-29 00:00:01,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-29 00:00:01,145 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-10-29 00:00:01,145 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_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d6528b7cc69fe4ab1ae178e84639571fa28bd084493b226ea467e9ac1e22d5f
[2021-10-29 00:00:01,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-29 00:00:01,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-29 00:00:01,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-29 00:00:01,485 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-29 00:00:01,486 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-29 00:00:01,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c
[2021-10-29 00:00:01,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/data/9823fe2b0/5620b25c11a244a88f6c45dd1ded3dc1/FLAG8d8643511
[2021-10-29 00:00:02,006 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-29 00:00:02,007 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c
[2021-10-29 00:00:02,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/data/9823fe2b0/5620b25c11a244a88f6c45dd1ded3dc1/FLAG8d8643511
[2021-10-29 00:00:02,409 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/data/9823fe2b0/5620b25c11a244a88f6c45dd1ded3dc1
[2021-10-29 00:00:02,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-29 00:00:02,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-29 00:00:02,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-29 00:00:02,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-29 00:00:02,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-29 00:00:02,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a268f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02, skipping insertion in model container
[2021-10-29 00:00:02,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-29 00:00:02,458 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-29 00:00:02,615 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-29 00:00:02,618 INFO L203 MainTranslator]: Completed pre-run
[2021-10-29 00:00:02,633 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-29 00:00:02,642 INFO L208 MainTranslator]: Completed translation
[2021-10-29 00:00:02,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02 WrapperNode
[2021-10-29 00:00:02,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-29 00:00:02,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-29 00:00:02,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-29 00:00:02,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-29 00:00:02,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-29 00:00:02,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-29 00:00:02,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-29 00:00:02,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-29 00:00:02,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-29 00:00:02,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-29 00:00:02,691 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-29 00:00:02,691 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-29 00:00:02,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (1/1) ...
[2021-10-29 00:00:02,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:02,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:02,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:02,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2021-10-29 00:00:02,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-29 00:00:02,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-29 00:00:02,936 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-29 00:00:02,936 INFO L299 CfgBuilder]: Removed 6 assume(true) statements.
[2021-10-29 00:00:02,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:02 BoogieIcfgContainer
[2021-10-29 00:00:02,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-29 00:00:02,940 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-10-29 00:00:02,940 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2021-10-29 00:00:02,944 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2021-10-29 00:00:02,945 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-29 00:00:02,945 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.10 12:00:02" (1/3) ...
[2021-10-29 00:00:02,947 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2108b49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:00:02, skipping insertion in model container
[2021-10-29 00:00:02,947 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-29 00:00:02,947 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:02" (2/3) ...
[2021-10-29 00:00:02,948 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2108b49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:00:02, skipping insertion in model container
[2021-10-29 00:00:02,948 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-29 00:00:02,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:02" (3/3) ...
[2021-10-29 00:00:02,949 INFO L389 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig2.c
[2021-10-29 00:00:03,008 INFO L359 BuchiCegarLoop]: Interprodecural is true
[2021-10-29 00:00:03,008 INFO L360 BuchiCegarLoop]: Hoare is false
[2021-10-29 00:00:03,008 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-10-29 00:00:03,008 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-29 00:00:03,009 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-29 00:00:03,009 INFO L364 BuchiCegarLoop]: Difference is false
[2021-10-29 00:00:03,009 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-29 00:00:03,009 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-10-29 00:00:03,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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)
[2021-10-29 00:00:03,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2021-10-29 00:00:03,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:03,044 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:03,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1]
[2021-10-29 00:00:03,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-29 00:00:03,048 INFO L425 BuchiCegarLoop]: ======== Iteration 1============
[2021-10-29 00:00:03,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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)
[2021-10-29 00:00:03,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2021-10-29 00:00:03,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:03,050 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:03,050 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1]
[2021-10-29 00:00:03,050 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-29 00:00:03,055 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L17-2true
[2021-10-29 00:00:03,055 INFO L793 eck$LassoCheckResult]: Loop: 5#L17-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L19-2true assume !(main_~y~0 < main_~x~0); 9#L19-3true main_~x~0 := main_~x~0 - 1; 5#L17-2true
[2021-10-29 00:00:03,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times
[2021-10-29 00:00:03,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:03,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668986676]
[2021-10-29 00:00:03,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:03,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:03,134 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:03,153 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:03,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:03,156 INFO L85 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times
[2021-10-29 00:00:03,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:03,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426076512]
[2021-10-29 00:00:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:03,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:03,169 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:03,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:03,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:03,176 INFO L85 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times
[2021-10-29 00:00:03,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:03,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895278295]
[2021-10-29 00:00:03,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:03,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:03,185 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:03,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:03,263 INFO L210 LassoAnalysis]: Preferences:
[2021-10-29 00:00:03,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-29 00:00:03,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-29 00:00:03,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-29 00:00:03,264 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-29 00:00:03,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:03,265 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-29 00:00:03,265 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-29 00:00:03,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration1_Loop
[2021-10-29 00:00:03,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-29 00:00:03,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-29 00:00:03,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:03,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:03,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:03,370 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-29 00:00:03,371 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-29 00:00:03,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:03,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:03,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:03,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2021-10-29 00:00:03,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-29 00:00:03,435 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:03,462 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-29 00:00:03,462 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: []
[2021-10-29 00:00:03,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:03,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:03,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:03,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:03,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-29 00:00:03,506 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:03,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2021-10-29 00:00:03,544 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-29 00:00:03,544 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: []
[2021-10-29 00:00:03,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:03,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:03,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:03,582 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:03,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-29 00:00:03,588 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:03,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2021-10-29 00:00:03,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:03,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:03,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:03,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:03,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-29 00:00:03,672 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:03,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2021-10-29 00:00:03,723 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-29 00:00:03,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0
[2021-10-29 00:00:03,731 INFO L210 LassoAnalysis]: Preferences:
[2021-10-29 00:00:03,731 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-29 00:00:03,731 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-29 00:00:03,731 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-29 00:00:03,731 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-29 00:00:03,731 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:03,731 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-29 00:00:03,732 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-29 00:00:03,732 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration1_Loop
[2021-10-29 00:00:03,732 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-29 00:00:03,732 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-29 00:00:03,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:03,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:03,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:03,846 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-29 00:00:03,850 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-29 00:00:03,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:03,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:03,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:03,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2021-10-29 00:00:03,865 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
[2021-10-29 00:00:03,876 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-29 00:00:03,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-29 00:00:03,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-29 00:00:03,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-29 00:00:03,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-29 00:00:03,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-29 00:00:03,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-29 00:00:03,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-29 00:00:03,895 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-29 00:00:03,896 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-29 00:00:03,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:03,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:03,899 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:03,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2021-10-29 00:00:03,932 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-29 00:00:03,932 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-29 00:00:03,932 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-29 00:00:03,933 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1
Supporting invariants []
[2021-10-29 00:00:03,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:03,959 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-29 00:00:03,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:03,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-29 00:00:03,997 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:04,006 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-29 00:00:04,007 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:04,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:04,061 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
[2021-10-29 00:00:04,062 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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)
[2021-10-29 00:00:04,116 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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) Result 23 states and 35 transitions. Complement of second has 7 states.
[2021-10-29 00:00:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-29 00:00:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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)
[2021-10-29 00:00:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions.
[2021-10-29 00:00:04,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters.
[2021-10-29 00:00:04,137 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:04,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters.
[2021-10-29 00:00:04,137 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:04,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters.
[2021-10-29 00:00:04,138 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:04,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions.
[2021-10-29 00:00:04,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2021-10-29 00:00:04,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions.
[2021-10-29 00:00:04,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3
[2021-10-29 00:00:04,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4
[2021-10-29 00:00:04,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions.
[2021-10-29 00:00:04,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-29 00:00:04,161 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions.
[2021-10-29 00:00:04,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions.
[2021-10-29 00:00:04,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6.
[2021-10-29 00:00:04,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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)
[2021-10-29 00:00:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions.
[2021-10-29 00:00:04,194 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions.
[2021-10-29 00:00:04,194 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions.
[2021-10-29 00:00:04,194 INFO L425 BuchiCegarLoop]: ======== Iteration 2============
[2021-10-29 00:00:04,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions.
[2021-10-29 00:00:04,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2021-10-29 00:00:04,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:04,195 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:04,196 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-29 00:00:04,196 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1]
[2021-10-29 00:00:04,196 INFO L791 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 73#L17-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 70#L19-2
[2021-10-29 00:00:04,196 INFO L793 eck$LassoCheckResult]: Loop: 70#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 70#L19-2
[2021-10-29 00:00:04,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:04,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times
[2021-10-29 00:00:04,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:04,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644317034]
[2021-10-29 00:00:04,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:04,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,220 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,228 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:04,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:04,230 INFO L85 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times
[2021-10-29 00:00:04,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:04,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285699970]
[2021-10-29 00:00:04,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:04,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,237 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:04,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:04,245 INFO L85 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times
[2021-10-29 00:00:04,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:04,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315032988]
[2021-10-29 00:00:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:04,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:04,272 INFO L210 LassoAnalysis]: Preferences:
[2021-10-29 00:00:04,273 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-29 00:00:04,273 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-29 00:00:04,273 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-29 00:00:04,273 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-29 00:00:04,273 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:04,273 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-29 00:00:04,273 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-29 00:00:04,273 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration2_Loop
[2021-10-29 00:00:04,274 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-29 00:00:04,274 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-29 00:00:04,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:04,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:04,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:04,318 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-29 00:00:04,318 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-29 00:00:04,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:04,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:04,320 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:04,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2021-10-29 00:00:04,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-29 00:00:04,332 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:04,348 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-29 00:00:04,348 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: []
[2021-10-29 00:00:04,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:04,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:04,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:04,376 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:04,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2021-10-29 00:00:04,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-29 00:00:04,377 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:04,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:04,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:04,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:04,412 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:04,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2021-10-29 00:00:04,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-29 00:00:04,413 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:04,543 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-29 00:00:04,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:04,546 INFO L210 LassoAnalysis]: Preferences:
[2021-10-29 00:00:04,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-29 00:00:04,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-29 00:00:04,546 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-29 00:00:04,547 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-29 00:00:04,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:04,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-29 00:00:04,547 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-29 00:00:04,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration2_Loop
[2021-10-29 00:00:04,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-29 00:00:04,547 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-29 00:00:04,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:04,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:04,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:04,616 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-29 00:00:04,616 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-29 00:00:04,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:04,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:04,633 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:04,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2021-10-29 00:00:04,636 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
[2021-10-29 00:00:04,645 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-29 00:00:04,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-29 00:00:04,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-29 00:00:04,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-29 00:00:04,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-29 00:00:04,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-29 00:00:04,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-29 00:00:04,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:04,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:04,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:04,715 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:04,724 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
[2021-10-29 00:00:04,733 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-29 00:00:04,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-29 00:00:04,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-29 00:00:04,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-29 00:00:04,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-29 00:00:04,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-29 00:00:04,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-29 00:00:04,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2021-10-29 00:00:04,746 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-29 00:00:04,762 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver.
[2021-10-29 00:00:04,762 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-29 00:00:04,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:04,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:04,764 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:04,768 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-29 00:00:04,768 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-29 00:00:04,768 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-29 00:00:04,768 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2021-10-29 00:00:04,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2021-10-29 00:00:04,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:04,802 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-29 00:00:04,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:04,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-29 00:00:04,828 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:04,837 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-29 00:00:04,838 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:04,840 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates
[2021-10-29 00:00:04,841 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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)
[2021-10-29 00:00:04,867 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 13 states and 18 transitions. Complement of second has 5 states.
[2021-10-29 00:00:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2021-10-29 00:00:04,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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)
[2021-10-29 00:00:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions.
[2021-10-29 00:00:04,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters.
[2021-10-29 00:00:04,869 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:04,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters.
[2021-10-29 00:00:04,870 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:04,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters.
[2021-10-29 00:00:04,870 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:04,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions.
[2021-10-29 00:00:04,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2021-10-29 00:00:04,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions.
[2021-10-29 00:00:04,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3
[2021-10-29 00:00:04,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3
[2021-10-29 00:00:04,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions.
[2021-10-29 00:00:04,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-29 00:00:04,875 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions.
[2021-10-29 00:00:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions.
[2021-10-29 00:00:04,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6.
[2021-10-29 00:00:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) 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)
[2021-10-29 00:00:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions.
[2021-10-29 00:00:04,878 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions.
[2021-10-29 00:00:04,878 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions.
[2021-10-29 00:00:04,878 INFO L425 BuchiCegarLoop]: ======== Iteration 3============
[2021-10-29 00:00:04,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions.
[2021-10-29 00:00:04,880 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2021-10-29 00:00:04,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:04,881 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:04,881 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1]
[2021-10-29 00:00:04,882 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1]
[2021-10-29 00:00:04,882 INFO L791 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 121#L17-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 119#L19-2 assume !(main_~y~0 < main_~x~0); 120#L19-3 main_~x~0 := main_~x~0 - 1; 122#L17-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 118#L19-2
[2021-10-29 00:00:04,882 INFO L793 eck$LassoCheckResult]: Loop: 118#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 118#L19-2
[2021-10-29 00:00:04,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:04,883 INFO L85 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times
[2021-10-29 00:00:04,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:04,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599072230]
[2021-10-29 00:00:04,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:04,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,902 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:04,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:04,912 INFO L85 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times
[2021-10-29 00:00:04,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:04,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103006813]
[2021-10-29 00:00:04,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:04,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,915 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:04,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:04,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:04,919 INFO L85 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times
[2021-10-29 00:00:04,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:04,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706051823]
[2021-10-29 00:00:04,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:04,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:05,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:05,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-29 00:00:05,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706051823]
[2021-10-29 00:00:05,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706051823] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-29 00:00:05,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844661678]
[2021-10-29 00:00:05,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:05,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-29 00:00:05,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,061 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:05,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-29 00:00:05,124 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:05,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844661678] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-29 00:00:05,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-29 00:00:05,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2021-10-29 00:00:05,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145033161]
[2021-10-29 00:00:05,227 INFO L210 LassoAnalysis]: Preferences:
[2021-10-29 00:00:05,227 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-29 00:00:05,227 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-29 00:00:05,227 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-29 00:00:05,227 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-29 00:00:05,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-29 00:00:05,228 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-29 00:00:05,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration3_Loop
[2021-10-29 00:00:05,228 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-29 00:00:05,228 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-29 00:00:05,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:05,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:05,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:05,282 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-29 00:00:05,283 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-29 00:00:05,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,284 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-29 00:00:05,304 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:05,326 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-29 00:00:05,326 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: []
[2021-10-29 00:00:05,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,365 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-29 00:00:05,373 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:05,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,396 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-29 00:00:05,396 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-29 00:00:05,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,434 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-29 00:00:05,439 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:05,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,484 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-29 00:00:05,488 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-29 00:00:05,613 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-29 00:00:05,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,618 INFO L210 LassoAnalysis]: Preferences:
[2021-10-29 00:00:05,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-29 00:00:05,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-29 00:00:05,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-29 00:00:05,619 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-29 00:00:05,619 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-29 00:00:05,619 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-29 00:00:05,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration3_Loop
[2021-10-29 00:00:05,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-29 00:00:05,619 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-29 00:00:05,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:05,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:05,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-29 00:00:05,690 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-29 00:00:05,690 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-29 00:00:05,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,691 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,708 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
[2021-10-29 00:00:05,717 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-29 00:00:05,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-29 00:00:05,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-29 00:00:05,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-29 00:00:05,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-29 00:00:05,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-29 00:00:05,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-29 00:00:05,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,782 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,793 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
[2021-10-29 00:00:05,802 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-29 00:00:05,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-29 00:00:05,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-29 00:00:05,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-29 00:00:05,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-29 00:00:05,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-29 00:00:05,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-29 00:00:05,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,862 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,867 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
[2021-10-29 00:00:05,874 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-29 00:00:05,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-29 00:00:05,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-29 00:00:05,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-29 00:00:05,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-29 00:00:05,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-29 00:00:05,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-29 00:00:05,887 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-29 00:00:05,891 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver.
[2021-10-29 00:00:05,891 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-29 00:00:05,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:05,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:05,892 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:05,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2021-10-29 00:00:05,896 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-29 00:00:05,896 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-29 00:00:05,896 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-29 00:00:05,896 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2021-10-29 00:00:05,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:05,920 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-29 00:00:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:05,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-29 00:00:05,953 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:05,978 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-29 00:00:05,978 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:05,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:05,979 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates
[2021-10-29 00:00:05,979 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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)
[2021-10-29 00:00:05,990 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 11 states and 15 transitions. Complement of second has 5 states.
[2021-10-29 00:00:05,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2021-10-29 00:00:05,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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)
[2021-10-29 00:00:05,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions.
[2021-10-29 00:00:05,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters.
[2021-10-29 00:00:05,992 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:05,992 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2021-10-29 00:00:06,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:06,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-29 00:00:06,015 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:06,035 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-29 00:00:06,035 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:06,038 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates
[2021-10-29 00:00:06,038 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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)
[2021-10-29 00:00:06,050 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 11 states and 15 transitions. Complement of second has 5 states.
[2021-10-29 00:00:06,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2021-10-29 00:00:06,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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)
[2021-10-29 00:00:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions.
[2021-10-29 00:00:06,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters.
[2021-10-29 00:00:06,052 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:06,052 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2021-10-29 00:00:06,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:06,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-29 00:00:06,068 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:06,086 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-29 00:00:06,086 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 00:00:06,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:06,088 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 1 loop predicates
[2021-10-29 00:00:06,088 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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)
[2021-10-29 00:00:06,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 9 states and 11 transitions. Complement of second has 4 states.
[2021-10-29 00:00:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2021-10-29 00:00:06,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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)
[2021-10-29 00:00:06,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions.
[2021-10-29 00:00:06,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters.
[2021-10-29 00:00:06,110 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:06,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters.
[2021-10-29 00:00:06,110 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:06,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters.
[2021-10-29 00:00:06,110 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-29 00:00:06,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions.
[2021-10-29 00:00:06,114 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-10-29 00:00:06,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions.
[2021-10-29 00:00:06,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2021-10-29 00:00:06,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2021-10-29 00:00:06,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2021-10-29 00:00:06,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-29 00:00:06,115 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-29 00:00:06,115 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-29 00:00:06,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-29 00:00:06,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-10-29 00:00:06,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2021-10-29 00:00:06,120 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 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)
[2021-10-29 00:00:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 00:00:06,123 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions.
[2021-10-29 00:00:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-10-29 00:00:06,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions.
[2021-10-29 00:00:06,124 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-10-29 00:00:06,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-29 00:00:06,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2021-10-29 00:00:06,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2021-10-29 00:00:06,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2021-10-29 00:00:06,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-29 00:00:06,124 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-29 00:00:06,125 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-29 00:00:06,125 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-29 00:00:06,125 INFO L425 BuchiCegarLoop]: ======== Iteration 4============
[2021-10-29 00:00:06,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2021-10-29 00:00:06,125 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-10-29 00:00:06,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2021-10-29 00:00:06,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.10 12:00:06 BoogieIcfgContainer
[2021-10-29 00:00:06,130 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2021-10-29 00:00:06,131 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-29 00:00:06,131 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-29 00:00:06,131 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-29 00:00:06,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:02" (3/4) ...
[2021-10-29 00:00:06,134 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-10-29 00:00:06,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-29 00:00:06,135 INFO L168 Benchmark]: Toolchain (without parser) took 3721.13 ms. Allocated memory is still 146.8 MB. Free memory was 115.1 MB in the beginning and 88.7 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:06,136 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 46.3 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-29 00:00:06,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.88 ms. Allocated memory is still 146.8 MB. Free memory was 114.6 MB in the beginning and 124.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:06,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.57 ms. Allocated memory is still 146.8 MB. Free memory was 124.3 MB in the beginning and 123.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-29 00:00:06,139 INFO L168 Benchmark]: Boogie Preprocessor took 17.16 ms. Allocated memory is still 146.8 MB. Free memory was 123.3 MB in the beginning and 122.3 MB in the end (delta: 913.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:06,139 INFO L168 Benchmark]: RCFGBuilder took 248.24 ms. Allocated memory is still 146.8 MB. Free memory was 122.3 MB in the beginning and 113.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:06,140 INFO L168 Benchmark]: BuchiAutomizer took 3190.22 ms. Allocated memory is still 146.8 MB. Free memory was 113.9 MB in the beginning and 88.7 MB in the end (delta: 25.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:06,140 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 146.8 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-29 00:00:06,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 46.3 MB. There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 212.88 ms. Allocated memory is still 146.8 MB. Free memory was 114.6 MB in the beginning and 124.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 28.57 ms. Allocated memory is still 146.8 MB. Free memory was 124.3 MB in the beginning and 123.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Boogie Preprocessor took 17.16 ms. Allocated memory is still 146.8 MB. Free memory was 123.3 MB in the beginning and 122.3 MB in the end (delta: 913.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 248.24 ms. Allocated memory is still 146.8 MB. Free memory was 122.3 MB in the beginning and 113.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* BuchiAutomizer took 3190.22 ms. Allocated memory is still 146.8 MB. Free memory was 113.9 MB in the beginning and 88.7 MB in the end (delta: 25.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB.
* Witness Printer took 2.99 ms. Allocated memory is still 146.8 MB. Free memory is still 88.7 MB. There was no memory consumed. 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function x + -1 * y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 15 SDtfs, 18 SDslu, 6 SDs, 0 SdLazy, 39 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax204 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 63ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2021-10-29 00:00:06,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0
[2021-10-29 00:00:06,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2021-10-29 00:00:06,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d9b694-22bf-4838-9a91-4fe7d0dd6266/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0
Received shutdown request...