./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/DivMinus.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/DivMinus.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer --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 5b51e497bfccbe41f125b1047cdc66303f76f609 ....................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:13:56,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:13:56,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:13:56,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:13:56,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:13:56,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:13:56,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:13:56,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:13:56,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:13:56,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:13:56,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:13:56,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:13:56,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:13:56,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:13:56,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:13:56,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:13:56,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:13:56,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:13:56,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:13:56,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:13:56,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:13:56,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:13:56,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:13:56,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:13:56,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:13:56,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:13:56,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:13:56,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:13:56,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:13:56,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:13:56,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:13:56,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:13:56,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:13:56,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:13:56,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:13:56,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:13:56,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:13:56,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:13:56,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:13:56,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:13:56,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:13:56,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 12:13:56,360 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:13:56,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:13:56,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:13:56,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:13:56,362 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:13:56,362 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:13:56,362 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:13:56,362 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:13:56,362 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:13:56,362 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:13:56,362 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:13:56,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:13:56,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:13:56,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:13:56,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:13:56,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:13:56,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:13:56,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:13:56,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:13:56,364 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:13:56,364 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:13:56,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:13:56,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:13:56,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:13:56,364 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:13:56,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:13:56,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:13:56,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:13:56,365 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:13:56,366 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:13:56,366 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer 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 -> 5b51e497bfccbe41f125b1047cdc66303f76f609 [2019-12-07 12:13:56,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:13:56,482 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:13:56,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:13:56,487 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:13:56,487 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:13:56,488 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/DivMinus.c [2019-12-07 12:13:56,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/data/071c6ef1d/cca1a9c330a24d1a8bc99f35407dbf1d/FLAGa71c0a879 [2019-12-07 12:13:56,939 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:13:56,940 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/sv-benchmarks/c/termination-restricted-15/DivMinus.c [2019-12-07 12:13:56,943 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/data/071c6ef1d/cca1a9c330a24d1a8bc99f35407dbf1d/FLAGa71c0a879 [2019-12-07 12:13:56,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/data/071c6ef1d/cca1a9c330a24d1a8bc99f35407dbf1d [2019-12-07 12:13:56,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:13:56,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:13:56,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:13:56,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:13:56,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:13:56,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:13:56" (1/1) ... [2019-12-07 12:13:56,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5e6fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:56, skipping insertion in model container [2019-12-07 12:13:56,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:13:56" (1/1) ... [2019-12-07 12:13:56,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:13:56,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:13:57,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:13:57,070 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:13:57,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:13:57,120 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:13:57,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57 WrapperNode [2019-12-07 12:13:57,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:13:57,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:13:57,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:13:57,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:13:57,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:13:57,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:13:57,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:13:57,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:13:57,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... [2019-12-07 12:13:57,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:13:57,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:13:57,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:13:57,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:13:57,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:13:57,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:13:57,277 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:13:57,277 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 12:13:57,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:57 BoogieIcfgContainer [2019-12-07 12:13:57,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:13:57,278 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:13:57,278 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:13:57,280 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:13:57,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:13:57,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:13:56" (1/3) ... [2019-12-07 12:13:57,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@477fbc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:13:57, skipping insertion in model container [2019-12-07 12:13:57,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:13:57,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:57" (2/3) ... [2019-12-07 12:13:57,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@477fbc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:13:57, skipping insertion in model container [2019-12-07 12:13:57,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:13:57,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:57" (3/3) ... [2019-12-07 12:13:57,283 INFO L371 chiAutomizerObserver]: Analyzing ICFG DivMinus.c [2019-12-07 12:13:57,312 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:13:57,312 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:13:57,312 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:13:57,312 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:13:57,312 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:13:57,313 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:13:57,313 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:13:57,313 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:13:57,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-12-07 12:13:57,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 12:13:57,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:13:57,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:13:57,338 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 12:13:57,338 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 12:13:57,338 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:13:57,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-12-07 12:13:57,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 12:13:57,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:13:57,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:13:57,339 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 12:13:57,339 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 12:13:57,343 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 5#L13-2true [2019-12-07 12:13:57,343 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - main_~y~0;main_~res~0 := 1 + main_~res~0; 5#L13-2true [2019-12-07 12:13:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:57,347 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 12:13:57,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:57,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556274082] [2019-12-07 12:13:57,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:57,416 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:57,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:57,417 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-12-07 12:13:57,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:57,417 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943623553] [2019-12-07 12:13:57,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:57,428 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:57,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:57,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 12:13:57,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:57,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175775379] [2019-12-07 12:13:57,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:57,439 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:57,478 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:13:57,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:13:57,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:13:57,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:13:57,478 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:13:57,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:13:57,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:13:57,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: DivMinus.c_Iteration1_Loop [2019-12-07 12:13:57,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:13:57,479 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:13:57,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:13:57,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:13:57,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:13:57,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:13:57,577 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:13:57,578 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:57,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:57,590 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:57,590 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:57,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:57,598 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:57,598 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:57,602 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:13:57,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:57,621 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:57,621 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=4}, {ULTIMATE.start_main_~res~0=-4}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:57,625 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:13:57,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:57,724 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:13:57,726 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:13:57,726 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:13:57,726 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:13:57,726 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:13:57,726 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:13:57,726 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,726 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:13:57,726 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:13:57,726 INFO L133 ssoRankerPreferences]: Filename of dumped script: DivMinus.c_Iteration1_Loop [2019-12-07 12:13:57,726 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:13:57,726 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:13:57,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:13:57,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:13:57,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:13:57,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:13:57,782 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:13:57,786 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:13:57,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:57,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:57,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:57,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:57,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:13:57,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:13:57,801 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:13:57,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:57,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:57,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:57,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:57,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:13:57,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:13:57,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:13:57,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:57,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:13:57,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:57,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:57,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:57,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:13:57,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:13:57,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:13:57,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:57,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:13:57,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:57,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:57,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:57,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:13:57,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:13:57,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:13:57,835 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 12:13:57,835 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e89039af-1dc9-4f20-b536-f6d53500383b/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:57,838 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:13:57,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:13:57,839 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:13:57,839 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 12:13:57,843 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:13:57,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:57,866 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:13:57,867 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:57,874 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:13:57,875 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:13:57,885 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 [2019-12-07 12:13:57,886 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2019-12-07 12:13:57,911 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2019-12-07 12:13:57,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:13:57,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 12:13:57,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-12-07 12:13:57,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2019-12-07 12:13:57,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:13:57,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 12:13:57,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:13:57,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 12:13:57,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:13:57,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-12-07 12:13:57,916 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:13:57,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-12-07 12:13:57,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 12:13:57,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 12:13:57,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 12:13:57,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:13:57,919 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:13:57,919 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:13:57,919 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:13:57,920 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:13:57,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:13:57,920 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:13:57,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 12:13:57,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:13:57 BoogieIcfgContainer [2019-12-07 12:13:57,924 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:13:57,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:13:57,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:13:57,924 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:13:57,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:57" (3/4) ... [2019-12-07 12:13:57,927 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:13:57,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:13:57,929 INFO L168 Benchmark]: Toolchain (without parser) took 974.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 943.6 MB in the beginning and 949.1 MB in the end (delta: -5.5 MB). Peak memory consumption was 82.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:57,929 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:57,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -137.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:57,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:57,930 INFO L168 Benchmark]: Boogie Preprocessor took 11.16 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:57,931 INFO L168 Benchmark]: RCFGBuilder took 126.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:57,931 INFO L168 Benchmark]: BuchiAutomizer took 645.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 949.1 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:57,932 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 1.1 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:57,934 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 165.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -137.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.16 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 126.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 645.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 949.1 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.87 ms. Allocated memory is still 1.1 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf93 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...