./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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 32bit --witnessprinter.graph.data.programhash a06ba721ade3e36e091d6046e7f548a6b0c91e10 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:06,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:06,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:06,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:06,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:06,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:06,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:06,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:06,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:06,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:06,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:06,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:06,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:06,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:06,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:06,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:06,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:06,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:06,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:06,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:06,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:06,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:06,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:06,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:06,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:06,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:06,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:06,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:06,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:06,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:06,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:06,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:06,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:06,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:06,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:06,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:06,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:06,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:06,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:06,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:06,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:06,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:01:06,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:06,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:06,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:06,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:06,404 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:06,405 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:06,405 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:06,405 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:06,405 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:06,405 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:06,406 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:06,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:06,406 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:06,406 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:06,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:06,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:06,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:06,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:06,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:06,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:06,407 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:06,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:06,408 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:06,408 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:06,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:06,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:06,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:06,408 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:06,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:06,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:06,409 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:06,410 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:06,410 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/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a06ba721ade3e36e091d6046e7f548a6b0c91e10 [2019-10-22 09:01:06,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:06,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:06,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:06,459 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:06,459 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:06,460 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-2.c [2019-10-22 09:01:06,507 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/data/c925c8729/74f92aa4a96b45aaad7566cdf10bf11c/FLAGcf35405fb [2019-10-22 09:01:06,882 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:06,883 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/sv-benchmarks/c/loops/terminator_02-2.c [2019-10-22 09:01:06,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/data/c925c8729/74f92aa4a96b45aaad7566cdf10bf11c/FLAGcf35405fb [2019-10-22 09:01:07,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/data/c925c8729/74f92aa4a96b45aaad7566cdf10bf11c [2019-10-22 09:01:07,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:07,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:07,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:07,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:07,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:07,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a399bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07, skipping insertion in model container [2019-10-22 09:01:07,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,308 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:07,323 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:07,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:07,511 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:07,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:07,622 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:07,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07 WrapperNode [2019-10-22 09:01:07,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:07,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:07,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:07,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:07,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:07,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:07,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:07,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:07,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:07,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:07,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:07,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:07,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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 [2019-10-22 09:01:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:07,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:07,977 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:07,977 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 09:01:07,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:07 BoogieIcfgContainer [2019-10-22 09:01:07,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:07,980 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:07,980 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:07,984 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:07,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:07,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:07" (1/3) ... [2019-10-22 09:01:07,988 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2beb6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:07, skipping insertion in model container [2019-10-22 09:01:07,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:07,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07" (2/3) ... [2019-10-22 09:01:07,989 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2beb6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:07, skipping insertion in model container [2019-10-22 09:01:07,989 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:07,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:07" (3/3) ... [2019-10-22 09:01:07,991 INFO L371 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2019-10-22 09:01:08,062 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:08,067 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:08,067 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:08,067 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:08,068 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:08,068 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:08,068 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:08,068 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:08,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-10-22 09:01:08,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:08,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:08,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:08,113 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:08,113 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:08,113 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:08,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-10-22 09:01:08,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:08,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:08,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:08,115 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:08,116 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:08,131 INFO L791 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L17true assume !!(main_~x~0 > -100); 6#L18true assume !!(main_~x~0 < 200); 7#L19true assume !!(main_~z~0 > 100); 9#L20true assume !!(main_~z~0 < 200); 11#L24-2true [2019-10-22 09:01:08,132 INFO L793 eck$LassoCheckResult]: Loop: 11#L24-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 14#L24true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 11#L24-2true [2019-10-22 09:01:08,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,138 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2019-10-22 09:01:08,146 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162333936] [2019-10-22 09:01:08,147 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,147 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:08,242 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 1 times [2019-10-22 09:01:08,244 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680016688] [2019-10-22 09:01:08,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:08,261 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:08,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2019-10-22 09:01:08,264 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921709] [2019-10-22 09:01:08,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:08,281 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:08,346 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:08,347 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:08,347 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:08,347 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:08,347 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:01:08,348 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:08,348 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:08,348 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:08,348 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2019-10-22 09:01:08,348 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:08,348 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:08,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:08,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:08,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:08,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:08,520 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:08,521 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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) [2019-10-22 09:01:08,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:08,528 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:08,546 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:08,547 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-217, ULTIMATE.start_main_#t~nondet3=-217} Honda state: {ULTIMATE.start_main_~tmp~0=-217, ULTIMATE.start_main_#t~nondet3=-217} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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 [2019-10-22 09:01:08,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:08,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:08,555 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:08,555 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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) [2019-10-22 09:01:08,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:08,576 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:08,583 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:08,584 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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) [2019-10-22 09:01:08,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:08,592 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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) [2019-10-22 09:01:08,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:01:08,604 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:08,616 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:01:08,619 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:08,619 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:08,619 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:08,619 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:08,619 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:08,619 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:08,619 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:08,620 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:08,620 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2019-10-22 09:01:08,620 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:08,620 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:08,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:08,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:08,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:08,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:08,745 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:08,753 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:08,755 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 [2019-10-22 09:01:08,756 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:08,758 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:08,759 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:08,760 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:08,760 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:08,763 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:08,763 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:08,780 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:08,780 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 [2019-10-22 09:01:08,781 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:08,781 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:08,782 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:08,782 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:08,782 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:08,783 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:08,783 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:08,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:08,788 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 [2019-10-22 09:01:08,789 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:08,789 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:08,789 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:08,789 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:08,790 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:08,790 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:08,790 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:08,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:08,799 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 [2019-10-22 09:01:08,800 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:08,800 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:08,800 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:08,800 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:08,800 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:08,801 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:08,801 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:08,810 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:08,819 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:08,822 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:01:08,824 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:08,824 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:01:08,824 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:08,825 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-10-22 09:01:08,829 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:01:08,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:08,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:08,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:08,925 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 [2019-10-22 09:01:08,926 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-10-22 09:01:08,998 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 42 states and 55 transitions. Complement of second has 8 states. [2019-10-22 09:01:09,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 09:01:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2019-10-22 09:01:09,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 09:01:09,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:09,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 09:01:09,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:09,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 4 letters. [2019-10-22 09:01:09,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:09,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 55 transitions. [2019-10-22 09:01:09,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:09,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 11 states and 14 transitions. [2019-10-22 09:01:09,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-10-22 09:01:09,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-10-22 09:01:09,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-10-22 09:01:09,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:01:09,030 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-10-22 09:01:09,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-10-22 09:01:09,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-10-22 09:01:09,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-22 09:01:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-10-22 09:01:09,058 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-10-22 09:01:09,058 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-10-22 09:01:09,058 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:01:09,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-10-22 09:01:09,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:09,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:09,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:09,060 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:09,060 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:09,060 INFO L791 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 106#L17 assume !!(main_~x~0 > -100); 112#L18 assume !!(main_~x~0 < 200); 113#L19 assume !!(main_~z~0 > 100); 114#L20 assume !!(main_~z~0 < 200); 115#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 111#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 107#L24-2 [2019-10-22 09:01:09,061 INFO L793 eck$LassoCheckResult]: Loop: 107#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 108#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 107#L24-2 [2019-10-22 09:01:09,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 1 times [2019-10-22 09:01:09,061 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:09,061 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98988815] [2019-10-22 09:01:09,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,089 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:09,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 2 times [2019-10-22 09:01:09,090 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:09,090 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637923964] [2019-10-22 09:01:09,090 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,090 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,099 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:09,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954034, now seen corresponding path program 1 times [2019-10-22 09:01:09,100 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:09,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019424698] [2019-10-22 09:01:09,100 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,100 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,120 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:09,145 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:09,145 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:09,145 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:09,145 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:09,146 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:01:09,146 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:09,146 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:09,146 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:09,146 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2019-10-22 09:01:09,146 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:09,146 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:09,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,256 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:09,257 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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 [2019-10-22 09:01:09,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:09,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:09,271 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:09,271 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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) [2019-10-22 09:01:09,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:09,282 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:09,298 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:09,298 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=128, ULTIMATE.start_main_#t~nondet3=128} Honda state: {ULTIMATE.start_main_~tmp~0=128, ULTIMATE.start_main_#t~nondet3=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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) [2019-10-22 09:01:09,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:09,318 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:09,322 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:09,322 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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 [2019-10-22 09:01:09,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:09,331 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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 [2019-10-22 09:01:09,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:01:09,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:09,360 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:01:09,362 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:09,363 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:09,363 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:09,363 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:09,363 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:09,363 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:09,363 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:09,363 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:09,364 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2019-10-22 09:01:09,364 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:09,364 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:09,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,476 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:09,476 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:09,477 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 [2019-10-22 09:01:09,478 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:09,478 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:09,478 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:09,478 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:09,478 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:09,479 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:09,479 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:09,484 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:09,486 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 [2019-10-22 09:01:09,488 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:09,489 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:09,489 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:09,489 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:09,489 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:09,490 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:09,491 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:09,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:09,493 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 [2019-10-22 09:01:09,494 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:09,495 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:09,495 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:09,495 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:09,495 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:09,496 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:09,498 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:09,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:09,511 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 [2019-10-22 09:01:09,512 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:09,512 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:09,512 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:09,512 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:09,513 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:09,513 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:09,513 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:09,519 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:09,528 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:09,531 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:01:09,532 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:09,532 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:01:09,532 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:09,532 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-10-22 09:01:09,533 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:01:09,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:09,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:09,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:09,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:09,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:09,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:09,592 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 [2019-10-22 09:01:09,592 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-10-22 09:01:09,614 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2019-10-22 09:01:09,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 09:01:09,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-10-22 09:01:09,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 09:01:09,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:09,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-10-22 09:01:09,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:09,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2019-10-22 09:01:09,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:09,619 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2019-10-22 09:01:09,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:09,620 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2019-10-22 09:01:09,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-10-22 09:01:09,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-10-22 09:01:09,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2019-10-22 09:01:09,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:01:09,621 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-10-22 09:01:09,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2019-10-22 09:01:09,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-22 09:01:09,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-22 09:01:09,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-10-22 09:01:09,631 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-10-22 09:01:09,631 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-10-22 09:01:09,631 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:01:09,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-10-22 09:01:09,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:09,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:09,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:09,633 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2019-10-22 09:01:09,633 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:09,634 INFO L791 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 180#L17 assume !!(main_~x~0 > -100); 186#L18 assume !!(main_~x~0 < 200); 187#L19 assume !!(main_~z~0 > 100); 189#L20 assume !!(main_~z~0 < 200); 190#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 185#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 188#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 191#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 181#L24-2 [2019-10-22 09:01:09,634 INFO L793 eck$LassoCheckResult]: Loop: 181#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 182#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 181#L24-2 [2019-10-22 09:01:09,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954036, now seen corresponding path program 2 times [2019-10-22 09:01:09,634 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:09,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368019332] [2019-10-22 09:01:09,637 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,637 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,668 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:09,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 3 times [2019-10-22 09:01:09,674 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:09,674 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702943009] [2019-10-22 09:01:09,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,688 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:09,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1084083785, now seen corresponding path program 2 times [2019-10-22 09:01:09,689 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:09,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265331930] [2019-10-22 09:01:09,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,730 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:09,759 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:09,760 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:09,760 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:09,760 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:09,760 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:01:09,760 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:09,760 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:09,760 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:09,761 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2019-10-22 09:01:09,761 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:09,761 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:09,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,859 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:09,859 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/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 [2019-10-22 09:01:09,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:09,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:09,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:09,881 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:01:09,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:09,889 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:01:09,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:01:09,901 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:09,910 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:01:09,913 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:09,913 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:09,913 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:09,913 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:09,913 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:09,913 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:09,914 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:09,914 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:09,914 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2019-10-22 09:01:09,914 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:09,914 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:09,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:09,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,053 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:10,053 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:10,054 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 [2019-10-22 09:01:10,055 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:10,055 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:10,055 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:10,055 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:10,055 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:10,056 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:10,056 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:10,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:10,058 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 [2019-10-22 09:01:10,064 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:10,064 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:10,065 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:10,065 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:10,065 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:10,066 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:10,066 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:10,074 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:10,078 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:10,087 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:01:10,087 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:10,088 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:01:10,088 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:10,088 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-10-22 09:01:10,089 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:01:10,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:10,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:10,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:10,145 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 [2019-10-22 09:01:10,145 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-10-22 09:01:10,158 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2019-10-22 09:01:10,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 09:01:10,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-10-22 09:01:10,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-10-22 09:01:10,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:10,160 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-10-22 09:01:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:10,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:10,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:10,201 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-10-22 09:01:10,201 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-10-22 09:01:10,213 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2019-10-22 09:01:10,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 09:01:10,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-10-22 09:01:10,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-10-22 09:01:10,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:10,214 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-10-22 09:01:10,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:10,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:10,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:10,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:10,252 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-10-22 09:01:10,253 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-10-22 09:01:10,265 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 19 states and 27 transitions. Complement of second has 4 states. [2019-10-22 09:01:10,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 09:01:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-10-22 09:01:10,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2019-10-22 09:01:10,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:10,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2019-10-22 09:01:10,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:10,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 4 letters. [2019-10-22 09:01:10,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:10,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2019-10-22 09:01:10,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 09:01:10,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 23 transitions. [2019-10-22 09:01:10,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-10-22 09:01:10,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-10-22 09:01:10,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-10-22 09:01:10,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:01:10,272 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-10-22 09:01:10,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-10-22 09:01:10,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 9. [2019-10-22 09:01:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-10-22 09:01:10,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2019-10-22 09:01:10,273 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-10-22 09:01:10,273 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-10-22 09:01:10,274 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 09:01:10,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2019-10-22 09:01:10,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 09:01:10,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:10,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:10,274 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:10,274 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:10,275 INFO L791 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 379#L17 assume !!(main_~x~0 > -100); 384#L18 assume !!(main_~x~0 < 200); 385#L19 assume !!(main_~z~0 > 100); 386#L20 assume !!(main_~z~0 < 200); 380#L24-2 [2019-10-22 09:01:10,275 INFO L793 eck$LassoCheckResult]: Loop: 380#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 382#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 380#L24-2 [2019-10-22 09:01:10,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,275 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 2 times [2019-10-22 09:01:10,276 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166219408] [2019-10-22 09:01:10,276 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,276 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:10,286 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:10,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2019-10-22 09:01:10,286 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,286 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657816582] [2019-10-22 09:01:10,287 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,287 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:10,294 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:10,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 3 times [2019-10-22 09:01:10,295 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099918147] [2019-10-22 09:01:10,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:10,304 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:10,332 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:10,332 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:10,333 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:10,333 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:10,333 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:01:10,333 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:10,333 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:10,333 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:10,333 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2019-10-22 09:01:10,334 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:10,334 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:10,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,424 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:10,424 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:01:10,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:10,433 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:10,438 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:10,439 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:10,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:10,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:10,447 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:10,447 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:10,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:10,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:10,463 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:10,463 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=0, ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_~tmp~0=0, ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:10,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:10,487 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e30617-b3f6-46fc-9590-da1b6d285711/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:10,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:01:10,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:10,518 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:01:10,520 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:10,521 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:10,521 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:10,521 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:10,521 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:10,521 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:10,521 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:10,521 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:10,521 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2019-10-22 09:01:10,522 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:10,522 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:10,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:10,624 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:10,624 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:10,625 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 [2019-10-22 09:01:10,626 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:10,626 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:10,626 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:10,626 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:10,626 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:10,627 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:10,627 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:10,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:10,630 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 [2019-10-22 09:01:10,631 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:10,631 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:10,632 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:10,632 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:10,632 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:10,632 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:10,632 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:10,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:10,634 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 [2019-10-22 09:01:10,634 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:10,634 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:10,635 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:10,635 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:10,635 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:10,636 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:10,636 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:10,639 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:10,641 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:10,641 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:01:10,642 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:10,642 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:01:10,642 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:10,642 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-10-22 09:01:10,643 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:01:10,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:10,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:10,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:10,676 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 [2019-10-22 09:01:10,676 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-10-22 09:01:10,686 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 15 states and 21 transitions. Complement of second has 4 states. [2019-10-22 09:01:10,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 09:01:10,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-10-22 09:01:10,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 09:01:10,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:10,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 09:01:10,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:10,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2019-10-22 09:01:10,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:10,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2019-10-22 09:01:10,689 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:10,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-10-22 09:01:10,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:01:10,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:01:10,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:01:10,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:10,689 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:10,690 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:10,690 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:10,690 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-10-22 09:01:10,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:10,690 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:10,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:01:10,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:10 BoogieIcfgContainer [2019-10-22 09:01:10,697 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:10,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:10,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:10,697 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:10,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:07" (3/4) ... [2019-10-22 09:01:10,702 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:10,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:10,704 INFO L168 Benchmark]: Toolchain (without parser) took 3409.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.6 MB). Free memory was 947.1 MB in the beginning and 1.2 GB in the end (delta: -227.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:10,705 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:10,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -200.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:10,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:10,707 INFO L168 Benchmark]: Boogie Preprocessor took 22.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:10,707 INFO L168 Benchmark]: RCFGBuilder took 298.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:10,708 INFO L168 Benchmark]: BuchiAutomizer took 2717.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -53.0 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:10,708 INFO L168 Benchmark]: Witness Printer took 4.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:10,712 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -200.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 298.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2717.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -53.0 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 53 SDslu, 11 SDs, 0 SdLazy, 42 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf48 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...