./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 0.1.23-635dfa2 [2018-12-01 08:20:11,100 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 08:20:11,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 08:20:11,106 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 08:20:11,107 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 08:20:11,107 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 08:20:11,108 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 08:20:11,109 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 08:20:11,110 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 08:20:11,111 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 08:20:11,112 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 08:20:11,112 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 08:20:11,113 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 08:20:11,113 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 08:20:11,114 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 08:20:11,115 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 08:20:11,115 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 08:20:11,116 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 08:20:11,118 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 08:20:11,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 08:20:11,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 08:20:11,120 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 08:20:11,122 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 08:20:11,122 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 08:20:11,122 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 08:20:11,123 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 08:20:11,123 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 08:20:11,124 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 08:20:11,124 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 08:20:11,125 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 08:20:11,125 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 08:20:11,126 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 08:20:11,126 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 08:20:11,126 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 08:20:11,127 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 08:20:11,127 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 08:20:11,127 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 08:20:11,137 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 08:20:11,138 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 08:20:11,138 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 08:20:11,138 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 08:20:11,138 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 08:20:11,138 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 08:20:11,139 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 08:20:11,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 08:20:11,140 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 08:20:11,140 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 08:20:11,140 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 08:20:11,141 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 08:20:11,141 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 [2018-12-01 08:20:11,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 08:20:11,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 08:20:11,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 08:20:11,177 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 08:20:11,177 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 08:20:11,178 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-12-01 08:20:11,219 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/data/02ae34b81/8c18988063d1498b9a57862bac55c3b4/FLAG0a35e14ef [2018-12-01 08:20:11,551 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 08:20:11,552 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-12-01 08:20:11,555 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/data/02ae34b81/8c18988063d1498b9a57862bac55c3b4/FLAG0a35e14ef [2018-12-01 08:20:11,955 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/data/02ae34b81/8c18988063d1498b9a57862bac55c3b4 [2018-12-01 08:20:11,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 08:20:11,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 08:20:11,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 08:20:11,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 08:20:11,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 08:20:11,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:20:11" (1/1) ... [2018-12-01 08:20:11,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73973e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:11, skipping insertion in model container [2018-12-01 08:20:11,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:20:11" (1/1) ... [2018-12-01 08:20:11,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 08:20:11,978 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 08:20:12,070 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 08:20:12,073 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 08:20:12,081 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 08:20:12,089 INFO L195 MainTranslator]: Completed translation [2018-12-01 08:20:12,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12 WrapperNode [2018-12-01 08:20:12,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 08:20:12,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 08:20:12,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 08:20:12,090 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 08:20:12,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 08:20:12,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 08:20:12,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 08:20:12,108 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 08:20:12,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... [2018-12-01 08:20:12,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 08:20:12,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 08:20:12,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 08:20:12,119 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 08:20:12,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 [2018-12-01 08:20:12,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 08:20:12,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 08:20:12,268 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 08:20:12,268 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-12-01 08:20:12,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:20:12 BoogieIcfgContainer [2018-12-01 08:20:12,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 08:20:12,269 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 08:20:12,269 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 08:20:12,271 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 08:20:12,272 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:20:12,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 08:20:11" (1/3) ... [2018-12-01 08:20:12,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b72220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:20:12, skipping insertion in model container [2018-12-01 08:20:12,273 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:20:12,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:20:12" (2/3) ... [2018-12-01 08:20:12,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b72220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:20:12, skipping insertion in model container [2018-12-01 08:20:12,273 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:20:12,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:20:12" (3/3) ... [2018-12-01 08:20:12,274 INFO L375 chiAutomizerObserver]: Analyzing ICFG cggmp2005b_true-unreach-call_true-termination.c.i [2018-12-01 08:20:12,319 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 08:20:12,320 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 08:20:12,320 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 08:20:12,320 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 08:20:12,320 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 08:20:12,320 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 08:20:12,320 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 08:20:12,320 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 08:20:12,320 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 08:20:12,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-12-01 08:20:12,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 08:20:12,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:20:12,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:20:12,345 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 08:20:12,345 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 08:20:12,345 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 08:20:12,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-12-01 08:20:12,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 08:20:12,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:20:12,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:20:12,346 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 08:20:12,347 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 08:20:12,351 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 8#L21-3true [2018-12-01 08:20:12,351 INFO L796 eck$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 [2018-12-01 08:20:12,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,355 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-01 08:20:12,356 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:12,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:12,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:12,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1238515, now seen corresponding path program 1 times [2018-12-01 08:20:12,415 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:12,415 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:12,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:12,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:12,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:20:12,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-01 08:20:12,438 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 08:20:12,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 08:20:12,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 08:20:12,448 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-12-01 08:20:12,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:20:12,452 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2018-12-01 08:20:12,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 08:20:12,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2018-12-01 08:20:12,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 08:20:12,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 5 states and 7 transitions. [2018-12-01 08:20:12,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-01 08:20:12,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-01 08:20:12,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2018-12-01 08:20:12,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 08:20:12,457 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-12-01 08:20:12,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2018-12-01 08:20:12,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-12-01 08:20:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-01 08:20:12,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-12-01 08:20:12,473 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-12-01 08:20:12,473 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-12-01 08:20:12,473 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 08:20:12,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-12-01 08:20:12,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 08:20:12,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:20:12,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:20:12,474 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 08:20:12,474 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 08:20:12,474 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 [2018-12-01 08:20:12,474 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 [2018-12-01 08:20:12,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,474 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-12-01 08:20:12,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:12,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:12,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:12,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1238511, now seen corresponding path program 1 times [2018-12-01 08:20:12,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:12,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:12,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,478 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:20:12,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,484 INFO L82 PathProgramCache]: Analyzing trace with hash 29867662, now seen corresponding path program 1 times [2018-12-01 08:20:12,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:12,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:12,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:12,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:12,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:20:12,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 08:20:12,536 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:20:12,537 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:20:12,537 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:20:12,537 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:20:12,537 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:20:12,537 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:12,537 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:20:12,537 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:20:12,537 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-12-01 08:20:12,537 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:20:12,537 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:20:12,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,604 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:20:12,604 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 [2018-12-01 08:20:12,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:20:12,607 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:20:12,625 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:20:12,625 INFO L448 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/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 [2018-12-01 08:20:12,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:20:12,628 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 [2018-12-01 08:20:12,645 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:20:12,646 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:20:12,662 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:20:12,663 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:20:12,663 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:20:12,663 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:20:12,663 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:20:12,663 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:20:12,663 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:12,663 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:20:12,663 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:20:12,664 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-12-01 08:20:12,664 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:20:12,664 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:20:12,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,690 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:20:12,693 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:20:12,694 INFO L122 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 [2018-12-01 08:20:12,695 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:20:12,695 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:20:12,695 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:20:12,695 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:20:12,696 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:20:12,697 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:20:12,697 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:20:12,698 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:20:12,698 INFO L122 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 [2018-12-01 08:20:12,699 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:20:12,699 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:20:12,699 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:20:12,699 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:20:12,699 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:20:12,700 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:20:12,700 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:20:12,703 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:20:12,705 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:20:12,705 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:20:12,706 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:20:12,706 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 08:20:12,707 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:20:12,707 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2018-12-01 08:20:12,707 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 08:20:12,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:12,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:12,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:12,762 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 [2018-12-01 08:20:12,763 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-12-01 08:20:12,782 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. [2018-12-01 08:20:12,782 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 [2018-12-01 08:20:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 08:20:12,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-01 08:20:12,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-01 08:20:12,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:12,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2018-12-01 08:20:12,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:12,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 8 letters. [2018-12-01 08:20:12,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:12,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 20 transitions. [2018-12-01 08:20:12,786 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-12-01 08:20:12,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 19 transitions. [2018-12-01 08:20:12,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-01 08:20:12,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-01 08:20:12,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2018-12-01 08:20:12,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:20:12,787 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2018-12-01 08:20:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2018-12-01 08:20:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-12-01 08:20:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-01 08:20:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 16 transitions. [2018-12-01 08:20:12,788 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 16 transitions. [2018-12-01 08:20:12,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:20:12,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:20:12,788 INFO L87 Difference]: Start difference. First operand 10 states and 16 transitions. Second operand 3 states. [2018-12-01 08:20:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:20:12,792 INFO L93 Difference]: Finished difference Result 11 states and 18 transitions. [2018-12-01 08:20:12,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:20:12,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 18 transitions. [2018-12-01 08:20:12,792 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-12-01 08:20:12,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 18 transitions. [2018-12-01 08:20:12,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-01 08:20:12,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-01 08:20:12,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 18 transitions. [2018-12-01 08:20:12,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:20:12,793 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-12-01 08:20:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 18 transitions. [2018-12-01 08:20:12,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-01 08:20:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-01 08:20:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2018-12-01 08:20:12,794 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-12-01 08:20:12,794 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-12-01 08:20:12,794 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 08:20:12,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 18 transitions. [2018-12-01 08:20:12,795 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-12-01 08:20:12,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:20:12,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:20:12,795 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 08:20:12,795 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 08:20:12,795 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 [2018-12-01 08:20:12,795 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 [2018-12-01 08:20:12,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,795 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-12-01 08:20:12,795 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:12,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:12,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:12,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-01 08:20:12,801 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:12,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:12,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:12,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:12,805 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2018-12-01 08:20:12,805 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:12,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:12,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:12,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:12,837 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:20:12,838 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:20:12,838 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:20:12,838 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:20:12,838 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:20:12,838 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:12,838 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:20:12,838 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:20:12,838 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration3_Lasso [2018-12-01 08:20:12,838 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:20:12,838 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:20:12,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:12,874 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:20:12,874 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 [2018-12-01 08:20:12,876 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:20:12,876 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:20:12,878 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:20:12,878 INFO L448 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/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:12,892 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:20:12,892 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:12,912 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:20:12,912 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:20:14,083 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:20:14,085 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:20:14,085 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:20:14,085 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:20:14,085 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:20:14,085 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:20:14,085 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:14,085 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:20:14,086 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:20:14,086 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration3_Lasso [2018-12-01 08:20:14,086 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:20:14,086 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:20:14,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:14,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:14,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:14,135 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:20:14,135 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:20:14,135 INFO L122 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 [2018-12-01 08:20:14,135 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:20:14,136 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:20:14,136 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:20:14,136 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:20:14,137 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:20:14,138 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:20:14,141 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:20:14,142 INFO L122 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 [2018-12-01 08:20:14,142 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:20:14,142 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:20:14,142 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:20:14,142 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:20:14,144 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:20:14,144 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:20:14,159 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:20:14,164 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:20:14,164 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:20:14,165 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:20:14,167 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:20:14,167 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:20:14,167 INFO L520 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] [2018-12-01 08:20:14,169 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:20:14,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:14,198 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 [2018-12-01 08:20:14,199 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-12-01 08:20:14,219 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. [2018-12-01 08:20:14,220 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 [2018-12-01 08:20:14,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:20:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2018-12-01 08:20:14,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-01 08:20:14,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-01 08:20:14,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-01 08:20:14,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 33 transitions. [2018-12-01 08:20:14,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-01 08:20:14,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 27 transitions. [2018-12-01 08:20:14,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-01 08:20:14,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-12-01 08:20:14,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 27 transitions. [2018-12-01 08:20:14,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:20:14,222 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2018-12-01 08:20:14,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 27 transitions. [2018-12-01 08:20:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-12-01 08:20:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-01 08:20:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 26 transitions. [2018-12-01 08:20:14,223 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2018-12-01 08:20:14,223 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2018-12-01 08:20:14,223 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 08:20:14,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 26 transitions. [2018-12-01 08:20:14,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-01 08:20:14,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:20:14,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:20:14,224 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-01 08:20:14,224 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 08:20:14,224 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 [2018-12-01 08:20:14,224 INFO L796 eck$LassoCheckResult]: Loop: 191#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 191#L21-2 [2018-12-01 08:20:14,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2018-12-01 08:20:14,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:14,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:14,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:14,225 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:20:14,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:14,239 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 08:20:14,239 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 08:20:14,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:14,298 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 08:20:14,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-12-01 08:20:14,299 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-01 08:20:14,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,299 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2018-12-01 08:20:14,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:14,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:14,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:14,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:14,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:14,308 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:20:14,309 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:20:14,309 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:20:14,309 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:20:14,309 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:20:14,309 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:14,309 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:20:14,309 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:20:14,309 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-12-01 08:20:14,309 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:20:14,309 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:20:14,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:14,325 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:20:14,325 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 [2018-12-01 08:20:14,327 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:20:14,327 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:14,344 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:20:14,344 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:20:14,360 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:20:14,362 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:20:14,362 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:20:14,362 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:20:14,362 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:20:14,362 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:20:14,362 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:14,362 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:20:14,362 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:20:14,362 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-12-01 08:20:14,362 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:20:14,362 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:20:14,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:14,373 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:20:14,373 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:20:14,373 INFO L122 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 [2018-12-01 08:20:14,374 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:20:14,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:20:14,374 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:20:14,374 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:20:14,374 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:20:14,374 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:20:14,374 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:20:14,377 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:20:14,378 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:20:14,378 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:20:14,379 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:20:14,379 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 08:20:14,379 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:20:14,379 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2018-12-01 08:20:14,379 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 08:20:14,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:14,396 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 [2018-12-01 08:20:14,396 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14 Second operand 2 states. [2018-12-01 08:20:14,403 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. [2018-12-01 08:20:14,403 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 [2018-12-01 08:20:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-01 08:20:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-01 08:20:14,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2018-12-01 08:20:14,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2018-12-01 08:20:14,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-01 08:20:14,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 75 transitions. [2018-12-01 08:20:14,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-01 08:20:14,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 31 states and 51 transitions. [2018-12-01 08:20:14,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-01 08:20:14,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-01 08:20:14,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 51 transitions. [2018-12-01 08:20:14,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:20:14,406 INFO L705 BuchiCegarLoop]: Abstraction has 31 states and 51 transitions. [2018-12-01 08:20:14,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 51 transitions. [2018-12-01 08:20:14,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 16. [2018-12-01 08:20:14,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-01 08:20:14,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2018-12-01 08:20:14,407 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2018-12-01 08:20:14,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 08:20:14,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-12-01 08:20:14,408 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand 8 states. [2018-12-01 08:20:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:20:14,428 INFO L93 Difference]: Finished difference Result 17 states and 26 transitions. [2018-12-01 08:20:14,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 08:20:14,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2018-12-01 08:20:14,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-01 08:20:14,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 26 transitions. [2018-12-01 08:20:14,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-01 08:20:14,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-01 08:20:14,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2018-12-01 08:20:14,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:20:14,430 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-12-01 08:20:14,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2018-12-01 08:20:14,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-01 08:20:14,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-01 08:20:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2018-12-01 08:20:14,432 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-12-01 08:20:14,432 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-12-01 08:20:14,432 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-01 08:20:14,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2018-12-01 08:20:14,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-01 08:20:14,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:20:14,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:20:14,433 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2018-12-01 08:20:14,433 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 08:20:14,433 INFO L794 eck$LassoCheckResult]: Stem: 342#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 343#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 340#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 341#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 351#L17-2 assume !(main_~j~0 < 20); 348#L17-3 main_~k~0 := 4; 347#L21-2 assume !(main_~k~0 <= 3); 344#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 345#L17-2 assume !(main_~j~0 < 20); 338#L17-3 main_~k~0 := 4; 346#L21-2 [2018-12-01 08:20:14,433 INFO L796 eck$LassoCheckResult]: Loop: 346#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 346#L21-2 [2018-12-01 08:20:14,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,433 INFO L82 PathProgramCache]: Analyzing trace with hash 352026178, now seen corresponding path program 1 times [2018-12-01 08:20:14,433 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:14,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:14,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:14,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:14,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-01 08:20:14,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 08:20:14,455 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 08:20:14,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-01 08:20:14,506 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 08:20:14,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-12-01 08:20:14,506 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-01 08:20:14,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,506 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2018-12-01 08:20:14,506 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:20:14,506 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:20:14,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:14,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:20:14,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:20:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:20:14,515 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:20:14,515 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:20:14,515 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:20:14,515 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:20:14,516 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:20:14,516 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:14,516 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:20:14,516 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:20:14,516 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration5_Loop [2018-12-01 08:20:14,516 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:20:14,516 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:20:14,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:14,530 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:20:14,530 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:14,531 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:20:14,531 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e759f5d-2253-450e-800e-ed0f409f1a22/bin-2019/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 [2018-12-01 08:20:14,548 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:20:14,548 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:20:14,563 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:20:14,565 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:20:14,565 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:20:14,565 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:20:14,565 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:20:14,565 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:20:14,565 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:20:14,565 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:20:14,565 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:20:14,565 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration5_Loop [2018-12-01 08:20:14,565 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:20:14,566 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:20:14,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:20:14,579 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:20:14,579 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:20:14,579 INFO L122 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 [2018-12-01 08:20:14,580 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:20:14,580 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:20:14,580 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:20:14,580 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:20:14,580 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:20:14,580 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:20:14,580 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:20:14,582 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:20:14,583 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:20:14,583 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:20:14,584 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:20:14,584 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 08:20:14,584 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:20:14,584 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2018-12-01 08:20:14,584 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 08:20:14,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:14,601 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 [2018-12-01 08:20:14,601 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-01 08:20:14,609 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. [2018-12-01 08:20:14,609 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 [2018-12-01 08:20:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-01 08:20:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-01 08:20:14,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2018-12-01 08:20:14,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,610 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 08:20:14,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,623 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:14,626 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 [2018-12-01 08:20:14,626 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-01 08:20:14,631 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. [2018-12-01 08:20:14,632 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 [2018-12-01 08:20:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-01 08:20:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-01 08:20:14,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2018-12-01 08:20:14,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,632 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 08:20:14,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:20:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:20:14,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:20:14,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:20:14,648 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 [2018-12-01 08:20:14,648 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-01 08:20:14,654 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. [2018-12-01 08:20:14,655 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 [2018-12-01 08:20:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-01 08:20:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2018-12-01 08:20:14,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 1 letters. [2018-12-01 08:20:14,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2018-12-01 08:20:14,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 2 letters. [2018-12-01 08:20:14,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:20:14,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2018-12-01 08:20:14,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 08:20:14,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2018-12-01 08:20:14,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 08:20:14,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 08:20:14,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 08:20:14,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 08:20:14,657 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:20:14,657 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:20:14,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 08:20:14,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-01 08:20:14,657 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2018-12-01 08:20:14,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:20:14,657 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-01 08:20:14,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 08:20:14,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-12-01 08:20:14,658 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 08:20:14,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 08:20:14,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 08:20:14,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 08:20:14,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 08:20:14,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 08:20:14,658 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:20:14,658 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:20:14,658 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:20:14,658 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-01 08:20:14,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 08:20:14,658 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 08:20:14,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 08:20:14,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 08:20:14 BoogieIcfgContainer [2018-12-01 08:20:14,662 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 08:20:14,662 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 08:20:14,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 08:20:14,663 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 08:20:14,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:20:12" (3/4) ... [2018-12-01 08:20:14,665 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 08:20:14,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 08:20:14,665 INFO L168 Benchmark]: Toolchain (without parser) took 2707.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 953.3 MB in the beginning and 837.1 MB in the end (delta: 116.2 MB). Peak memory consumption was 220.5 MB. Max. memory is 11.5 GB. [2018-12-01 08:20:14,667 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 08:20:14,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 08:20:14,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.85 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 08:20:14,667 INFO L168 Benchmark]: Boogie Preprocessor took 11.05 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 08:20:14,668 INFO L168 Benchmark]: RCFGBuilder took 149.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-01 08:20:14,668 INFO L168 Benchmark]: BuchiAutomizer took 2393.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 837.1 MB in the end (delta: 249.4 MB). Peak memory consumption was 249.4 MB. Max. memory is 11.5 GB. [2018-12-01 08:20:14,669 INFO L168 Benchmark]: Witness Printer took 2.65 ms. Allocated memory is still 1.1 GB. Free memory is still 837.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 08:20:14,671 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.85 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.05 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 149.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2393.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 837.1 MB in the end (delta: 249.4 MB). Peak memory consumption was 249.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.65 ms. Allocated memory is still 1.1 GB. Free memory is still 837.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 2.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 6ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...