./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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 7408fe5ba42f5c474832c90e26f3e7ef2342554c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:47:17,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:47:17,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:47:17,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:47:17,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:47:17,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:47:17,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:47:17,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:47:17,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:47:17,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:47:17,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:47:17,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:47:17,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:47:17,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:47:17,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:47:17,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:47:17,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:47:17,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:47:17,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:47:17,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:47:17,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:47:17,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:47:17,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:47:17,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:47:17,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:47:17,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:47:17,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:47:17,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:47:17,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:47:17,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:47:17,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:47:17,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:47:17,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:47:17,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:47:17,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:47:17,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:47:17,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:47:17,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:47:17,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:47:17,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:47:17,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:47:17,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:47:17,244 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:47:17,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:47:17,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:47:17,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:47:17,246 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:47:17,247 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:47:17,247 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:47:17,247 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:47:17,247 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:47:17,247 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:47:17,248 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:47:17,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:47:17,249 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:47:17,249 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:47:17,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:47:17,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:47:17,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:47:17,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:47:17,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:47:17,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:47:17,250 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:47:17,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:47:17,251 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:47:17,251 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:47:17,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:47:17,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:47:17,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:47:17,252 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:47:17,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:47:17,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:47:17,253 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:47:17,253 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:47:17,254 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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 -> 7408fe5ba42f5c474832c90e26f3e7ef2342554c [2019-11-25 08:47:17,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:47:17,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:47:17,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:47:17,444 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:47:17,444 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:47:17,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2019-11-25 08:47:17,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/data/a7bcb5473/4c7ce3a655c84518a0f7aa365d7d7a39/FLAGaa7006af8 [2019-11-25 08:47:17,872 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:47:17,873 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/sv-benchmarks/c/loop-lit/cggmp2005b.i [2019-11-25 08:47:17,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/data/a7bcb5473/4c7ce3a655c84518a0f7aa365d7d7a39/FLAGaa7006af8 [2019-11-25 08:47:17,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/data/a7bcb5473/4c7ce3a655c84518a0f7aa365d7d7a39 [2019-11-25 08:47:17,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:47:17,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:47:17,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:17,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:47:17,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:47:17,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:17" (1/1) ... [2019-11-25 08:47:17,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5093f83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:17, skipping insertion in model container [2019-11-25 08:47:17,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:17" (1/1) ... [2019-11-25 08:47:17,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:47:17,921 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:47:18,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:18,075 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:18,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:18,200 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:18,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18 WrapperNode [2019-11-25 08:47:18,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:18,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:18,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:18,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:18,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:18,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:18,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:18,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:18,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:18,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:18,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:18,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:18,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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 [2019-11-25 08:47:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:18,448 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:18,448 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:47:18,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:18 BoogieIcfgContainer [2019-11-25 08:47:18,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:18,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:47:18,450 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:47:18,452 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:47:18,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:18,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:47:17" (1/3) ... [2019-11-25 08:47:18,453 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22cfd568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:18, skipping insertion in model container [2019-11-25 08:47:18,453 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:18,453 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18" (2/3) ... [2019-11-25 08:47:18,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22cfd568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:18, skipping insertion in model container [2019-11-25 08:47:18,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:18,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:18" (3/3) ... [2019-11-25 08:47:18,455 INFO L371 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2019-11-25 08:47:18,495 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:47:18,495 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:47:18,495 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:47:18,496 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:18,496 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:18,496 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:47:18,496 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:18,496 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:47:18,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:47:18,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:47:18,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:18,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:18,547 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:47:18,547 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-25 08:47:18,547 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:47:18,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:47:18,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:47:18,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:18,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:18,549 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:47:18,549 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-25 08:47:18,556 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 8#L21-3true [2019-11-25 08:47:18,556 INFO L796 eck$LassoCheckResult]: Loop: 8#L21-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 3#L17-2true assume !(main_~j~0 < 20); 13#L17-3true main_~k~0 := 4; 11#L21-2true assume !true; 8#L21-3true [2019-11-25 08:47:18,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:18,562 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:47:18,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:18,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994271163] [2019-11-25 08:47:18,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:18,667 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:18,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:18,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1238515, now seen corresponding path program 1 times [2019-11-25 08:47:18,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:18,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151277781] [2019-11-25 08:47:18,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:18,693 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151277781] [2019-11-25 08:47:18,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:18,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:47:18,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086542712] [2019-11-25 08:47:18,699 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:47:18,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:18,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:47:18,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:47:18,712 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2019-11-25 08:47:18,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:18,716 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-25 08:47:18,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:47:18,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2019-11-25 08:47:18,718 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:47:18,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 5 states and 7 transitions. [2019-11-25 08:47:18,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:47:18,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-25 08:47:18,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2019-11-25 08:47:18,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:18,723 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-25 08:47:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2019-11-25 08:47:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-11-25 08:47:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-25 08:47:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-25 08:47:18,743 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-25 08:47:18,743 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-25 08:47:18,743 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:47:18,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-11-25 08:47:18,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:47:18,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:18,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:18,744 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:47:18,744 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-25 08:47:18,744 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 35#L21-3 [2019-11-25 08:47:18,744 INFO L796 eck$LassoCheckResult]: Loop: 35#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 32#L17-2 assume !(main_~j~0 < 20); 33#L17-3 main_~k~0 := 4; 36#L21-2 assume !(main_~k~0 <= 3); 35#L21-3 [2019-11-25 08:47:18,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:18,745 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-25 08:47:18,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:18,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872341888] [2019-11-25 08:47:18,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:18,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:18,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1238511, now seen corresponding path program 1 times [2019-11-25 08:47:18,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:18,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950267753] [2019-11-25 08:47:18,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:18,762 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:18,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:18,763 INFO L82 PathProgramCache]: Analyzing trace with hash 29867662, now seen corresponding path program 1 times [2019-11-25 08:47:18,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:18,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022898216] [2019-11-25 08:47:18,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:18,784 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022898216] [2019-11-25 08:47:18,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:18,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:47:18,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236748430] [2019-11-25 08:47:18,868 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:18,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:18,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:18,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:18,872 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:47:18,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:18,873 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:18,873 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:18,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2019-11-25 08:47:18,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:18,874 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:18,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:18,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:18,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:18,971 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:18,972 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:18,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:18,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:18,990 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:18,990 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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 [2019-11-25 08:47:19,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:19,009 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:19,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:47:19,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:19,028 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:47:19,030 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:19,030 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:19,030 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:19,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:19,031 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:47:19,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:19,031 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:19,031 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:19,031 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2019-11-25 08:47:19,031 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:19,031 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:19,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:19,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:19,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:19,089 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:19,094 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:19,099 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 [2019-11-25 08:47:19,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:19,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:47:19,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:19,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:19,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:47:19,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:47:19,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:47:19,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:19,130 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 [2019-11-25 08:47:19,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:19,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:47:19,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:19,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:19,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:47:19,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:47:19,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:19,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:47:19,144 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:47:19,145 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:19,163 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:47:19,163 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:47:19,163 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:47:19,164 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2019-11-25 08:47:19,168 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:19,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:19,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:47:19,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:19,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:47:19,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:19,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:19,258 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 [2019-11-25 08:47:19,259 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-11-25 08:47:19,295 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 4 states. [2019-11-25 08:47:19,296 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 [2019-11-25 08:47:19,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:47:19,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-25 08:47:19,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-25 08:47:19,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:19,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-25 08:47:19,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:19,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 8 letters. [2019-11-25 08:47:19,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:19,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 20 transitions. [2019-11-25 08:47:19,307 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-25 08:47:19,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 19 transitions. [2019-11-25 08:47:19,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:47:19,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-25 08:47:19,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2019-11-25 08:47:19,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:47:19,309 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2019-11-25 08:47:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2019-11-25 08:47:19,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2019-11-25 08:47:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-25 08:47:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 16 transitions. [2019-11-25 08:47:19,313 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 16 transitions. [2019-11-25 08:47:19,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:19,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:19,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:19,314 INFO L87 Difference]: Start difference. First operand 10 states and 16 transitions. Second operand 3 states. [2019-11-25 08:47:19,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:19,323 INFO L93 Difference]: Finished difference Result 11 states and 18 transitions. [2019-11-25 08:47:19,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:19,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 18 transitions. [2019-11-25 08:47:19,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-25 08:47:19,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 18 transitions. [2019-11-25 08:47:19,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:47:19,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-25 08:47:19,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 18 transitions. [2019-11-25 08:47:19,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:47:19,326 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-25 08:47:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 18 transitions. [2019-11-25 08:47:19,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-25 08:47:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-25 08:47:19,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2019-11-25 08:47:19,327 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-25 08:47:19,327 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-25 08:47:19,327 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:47:19,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 18 transitions. [2019-11-25 08:47:19,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-25 08:47:19,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:19,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:19,329 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:47:19,329 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:47:19,329 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 112#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 113#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2019-11-25 08:47:19,329 INFO L796 eck$LassoCheckResult]: Loop: 107#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2019-11-25 08:47:19,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:19,329 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-25 08:47:19,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:19,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865373271] [2019-11-25 08:47:19,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:19,342 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:19,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:19,343 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-25 08:47:19,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:19,344 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401210671] [2019-11-25 08:47:19,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:19,350 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:19,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:19,352 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2019-11-25 08:47:19,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:19,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634003425] [2019-11-25 08:47:19,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:19,384 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:19,433 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:19,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:19,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:19,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:19,433 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:47:19,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:19,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:19,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:19,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2019-11-25 08:47:19,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:19,434 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:19,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:19,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:19,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:19,502 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:19,502 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:19,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:19,517 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 [2019-11-25 08:47:19,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:19,524 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=9} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:19,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:19,541 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:19,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:47:19,574 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:21,542 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:47:21,544 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:21,544 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:21,544 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:21,545 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:21,545 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:47:21,545 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:21,545 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:21,545 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:21,545 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2019-11-25 08:47:21,545 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:21,545 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:21,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:21,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:21,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:21,645 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:21,645 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:21,658 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 [2019-11-25 08:47:21,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:21,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:21,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:21,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:47:21,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:47:21,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:21,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:21,694 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 [2019-11-25 08:47:21,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:21,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:21,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:21,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:21,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:47:21,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:47:21,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:47:21,739 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-25 08:47:21,739 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:21,745 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:47:21,749 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-25 08:47:21,749 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:47:21,749 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2019-11-25 08:47:21,758 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-25 08:47:21,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:21,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:47:21,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:21,830 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:47:21,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:21,831 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2019-11-25 08:47:21,831 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-11-25 08:47:21,878 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 20 states and 33 transitions. Complement of second has 6 states. [2019-11-25 08:47:21,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:47:21,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:47:21,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-11-25 08:47:21,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-25 08:47:21,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:21,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-25 08:47:21,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:21,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-25 08:47:21,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:21,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 33 transitions. [2019-11-25 08:47:21,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:47:21,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 27 transitions. [2019-11-25 08:47:21,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:47:21,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-25 08:47:21,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 27 transitions. [2019-11-25 08:47:21,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:47:21,883 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2019-11-25 08:47:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 27 transitions. [2019-11-25 08:47:21,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-25 08:47:21,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:47:21,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 26 transitions. [2019-11-25 08:47:21,888 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2019-11-25 08:47:21,888 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2019-11-25 08:47:21,888 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:47:21,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 26 transitions. [2019-11-25 08:47:21,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:47:21,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:21,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:21,892 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:47:21,892 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:47:21,892 INFO L794 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 187#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 188#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 183#L17-2 assume !(main_~j~0 < 20); 184#L17-3 main_~k~0 := 4; 191#L21-2 [2019-11-25 08:47:21,893 INFO L796 eck$LassoCheckResult]: Loop: 191#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 191#L21-2 [2019-11-25 08:47:21,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:21,893 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2019-11-25 08:47:21,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:21,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570393032] [2019-11-25 08:47:21,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:21,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570393032] [2019-11-25 08:47:21,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899622124] [2019-11-25 08:47:21,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:47:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:21,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:47:21,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:22,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:47:22,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-11-25 08:47:22,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696812856] [2019-11-25 08:47:22,009 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:47:22,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,009 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2019-11-25 08:47:22,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:22,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567680780] [2019-11-25 08:47:22,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:22,018 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:22,032 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:22,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:22,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:22,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:22,032 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:47:22,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:22,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:22,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2019-11-25 08:47:22,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:22,033 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:22,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:22,057 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:22,057 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:22,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:22,074 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:22,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:47:22,092 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,100 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:47:22,102 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:22,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:22,103 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:22,103 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:22,103 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:47:22,103 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,103 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:22,103 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:22,103 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2019-11-25 08:47:22,103 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:22,103 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:22,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:22,128 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:22,128 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:22,143 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 [2019-11-25 08:47:22,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:22,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:47:22,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:22,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:22,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:47:22,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:47:22,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,152 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:47:22,154 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:47:22,154 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/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) [2019-11-25 08:47:22,169 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:47:22,169 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:47:22,170 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:47:22,170 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2019-11-25 08:47:22,172 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,203 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:22,204 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:47:22,204 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14 Second operand 2 states. [2019-11-25 08:47:22,221 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 47 states and 75 transitions. Complement of second has 5 states. [2019-11-25 08:47:22,223 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 [2019-11-25 08:47:22,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:47:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-25 08:47:22,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-25 08:47:22,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:22,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-25 08:47:22,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:22,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-25 08:47:22,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:22,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 75 transitions. [2019-11-25 08:47:22,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:47:22,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 31 states and 51 transitions. [2019-11-25 08:47:22,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-25 08:47:22,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-25 08:47:22,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 51 transitions. [2019-11-25 08:47:22,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:47:22,228 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 51 transitions. [2019-11-25 08:47:22,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 51 transitions. [2019-11-25 08:47:22,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 16. [2019-11-25 08:47:22,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:47:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2019-11-25 08:47:22,231 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2019-11-25 08:47:22,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:22,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:47:22,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:47:22,232 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand 8 states. [2019-11-25 08:47:22,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:22,274 INFO L93 Difference]: Finished difference Result 17 states and 26 transitions. [2019-11-25 08:47:22,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:47:22,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2019-11-25 08:47:22,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:47:22,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 26 transitions. [2019-11-25 08:47:22,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:47:22,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-25 08:47:22,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2019-11-25 08:47:22,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:47:22,277 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-25 08:47:22,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2019-11-25 08:47:22,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-25 08:47:22,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-25 08:47:22,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2019-11-25 08:47:22,280 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-25 08:47:22,280 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-25 08:47:22,280 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:47:22,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2019-11-25 08:47:22,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:47:22,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:22,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:22,281 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2019-11-25 08:47:22,282 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:47:22,282 INFO L794 eck$LassoCheckResult]: Stem: 342#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 343#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 340#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 341#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 351#L17-2 assume !(main_~j~0 < 20); 348#L17-3 main_~k~0 := 4; 347#L21-2 assume !(main_~k~0 <= 3); 344#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 345#L17-2 assume !(main_~j~0 < 20); 338#L17-3 main_~k~0 := 4; 346#L21-2 [2019-11-25 08:47:22,282 INFO L796 eck$LassoCheckResult]: Loop: 346#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 346#L21-2 [2019-11-25 08:47:22,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,282 INFO L82 PathProgramCache]: Analyzing trace with hash 352026178, now seen corresponding path program 1 times [2019-11-25 08:47:22,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:22,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439441516] [2019-11-25 08:47:22,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,320 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:47:22,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439441516] [2019-11-25 08:47:22,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101615762] [2019-11-25 08:47:22,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-25 08:47:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:47:22,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:47:22,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:47:22,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-25 08:47:22,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085029559] [2019-11-25 08:47:22,415 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:47:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,416 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2019-11-25 08:47:22,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:22,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832575347] [2019-11-25 08:47:22,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:22,420 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:22,431 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:22,431 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:22,431 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:22,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:22,432 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:47:22,432 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,432 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:22,432 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:22,432 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2019-11-25 08:47:22,432 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:22,432 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:22,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:22,456 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:22,456 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:47:22,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:22,465 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:47:22,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:22,524 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:47:22,528 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:22,528 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:22,528 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:22,528 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:22,528 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:47:22,528 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,529 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:22,529 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:22,529 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2019-11-25 08:47:22,529 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:22,529 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:22,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:22,560 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:22,562 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,574 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 [2019-11-25 08:47:22,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:22,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:47:22,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:22,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:22,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:47:22,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:47:22,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:47:22,579 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:47:22,582 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:47:22,583 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d8938ce-0149-47e6-a8c3-68be81a96884/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:22,597 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:47:22,597 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:47:22,597 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:47:22,597 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2019-11-25 08:47:22,599 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:47:22,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,641 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:22,642 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:47:22,642 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-25 08:47:22,655 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2019-11-25 08:47:22,656 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 [2019-11-25 08:47:22,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:47:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-25 08:47:22,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-25 08:47:22,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:22,656 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:47:22,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,692 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:22,692 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:47:22,693 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-25 08:47:22,701 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2019-11-25 08:47:22,701 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 [2019-11-25 08:47:22,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:47:22,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-25 08:47:22,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-25 08:47:22,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:22,702 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:47:22,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,733 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:47:22,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:22,733 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:47:22,733 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-25 08:47:22,743 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 32 states and 48 transitions. Complement of second has 4 states. [2019-11-25 08:47:22,743 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 [2019-11-25 08:47:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:47:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2019-11-25 08:47:22,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-25 08:47:22,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:22,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2019-11-25 08:47:22,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:22,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-25 08:47:22,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:22,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2019-11-25 08:47:22,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:47:22,746 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-25 08:47:22,746 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:47:22,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:47:22,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:47:22,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:22,747 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:22,747 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:22,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:22,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:47:22,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:47:22,747 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2019-11-25 08:47:22,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:22,748 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-25 08:47:22,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:47:22,748 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-25 08:47:22,748 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:47:22,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:47:22,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:47:22,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:47:22,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:47:22,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:22,749 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:22,749 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:22,749 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:22,749 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-25 08:47:22,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:47:22,749 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:47:22,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:47:22,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:47:22 BoogieIcfgContainer [2019-11-25 08:47:22,755 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:47:22,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:47:22,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:47:22,756 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:47:22,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:18" (3/4) ... [2019-11-25 08:47:22,759 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:47:22,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:47:22,761 INFO L168 Benchmark]: Toolchain (without parser) took 4867.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:22,761 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:22,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:22,763 INFO L168 Benchmark]: Boogie Preprocessor took 24.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:22,763 INFO L168 Benchmark]: RCFGBuilder took 191.04 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,764 INFO L168 Benchmark]: BuchiAutomizer took 4305.55 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,765 INFO L168 Benchmark]: Witness Printer took 3.87 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: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,767 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 191.04 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4305.55 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.87 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: 4.5 MB). Peak memory consumption was 4.5 MB. 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 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 45 SDslu, 34 SDs, 0 SdLazy, 44 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf98 lsp87 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf100 smp100 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...