/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:01:09,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:01:09,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:01:09,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:01:09,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:01:09,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:01:09,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:01:09,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:01:09,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:01:09,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:01:09,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:01:09,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:01:09,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:01:09,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:01:09,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:01:09,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:01:09,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:01:09,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:01:09,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:01:09,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:01:09,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:01:09,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:01:09,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:01:09,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:01:09,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:01:09,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:01:09,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:01:09,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:01:09,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:01:09,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:01:09,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:01:09,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:01:09,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:01:09,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:01:09,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:01:09,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:01:09,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:01:09,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:01:09,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:01:09,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:01:09,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:01:09,250 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:01:09,264 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:01:09,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:01:09,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:01:09,266 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:01:09,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:01:09,266 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:01:09,266 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:01:09,267 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:01:09,267 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:01:09,267 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:01:09,267 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:01:09,267 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:01:09,267 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:01:09,268 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:01:09,268 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:01:09,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:01:09,268 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:01:09,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:01:09,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:01:09,269 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:01:09,269 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:01:09,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:01:09,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:01:09,269 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:01:09,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:01:09,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:01:09,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:01:09,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:01:09,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:01:09,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:01:09,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:01:09,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:01:09,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:01:09,456 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:01:09,456 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:01:09,525 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_5nn6Xz/tmp/d4050e4344a14900afd52f7378418ee0/FLAG992c36bd0 [2020-07-01 11:01:09,874 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:01:09,875 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:01:09,881 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_5nn6Xz/tmp/d4050e4344a14900afd52f7378418ee0/FLAG992c36bd0 [2020-07-01 11:01:10,305 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_5nn6Xz/tmp/d4050e4344a14900afd52f7378418ee0 [2020-07-01 11:01:10,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:01:10,318 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:01:10,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:01:10,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:01:10,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:01:10,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2244c849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10, skipping insertion in model container [2020-07-01 11:01:10,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:01:10,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:01:10,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:01:10,576 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:01:10,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:01:10,606 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:01:10,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10 WrapperNode [2020-07-01 11:01:10,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:01:10,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:01:10,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:01:10,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:01:10,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:01:10,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:01:10,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:01:10,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:01:10,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:01:10,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:01:10,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:01:10,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:01:10,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:01:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2020-07-01 11:01:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2020-07-01 11:01:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:01:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:01:10,887 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:01:10,887 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 11:01:10,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:01:10 BoogieIcfgContainer [2020-07-01 11:01:10,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:01:10,892 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:01:10,892 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:01:10,895 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:01:10,896 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:01:10" (1/1) ... [2020-07-01 11:01:10,912 INFO L313 BlockEncoder]: Initial Icfg 17 locations, 21 edges [2020-07-01 11:01:10,913 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:01:10,914 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:01:10,915 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:01:10,915 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:01:10,917 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:01:10,918 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:01:10,918 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:01:10,934 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:01:10,960 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:01:10,965 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:01:10,967 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:01:10,978 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:01:10,980 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-07-01 11:01:10,982 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:01:10,982 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:01:10,982 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:01:10,983 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:01:10,983 INFO L313 BlockEncoder]: Encoded RCFG 13 locations, 34 edges [2020-07-01 11:01:10,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:01:10 BasicIcfg [2020-07-01 11:01:10,984 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:01:10,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:01:10,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:01:10,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:01:10,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:01:10" (1/4) ... [2020-07-01 11:01:10,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d14f214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:01:10, skipping insertion in model container [2020-07-01 11:01:10,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (2/4) ... [2020-07-01 11:01:10,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d14f214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:01:10, skipping insertion in model container [2020-07-01 11:01:10,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:01:10" (3/4) ... [2020-07-01 11:01:10,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d14f214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:01:10, skipping insertion in model container [2020-07-01 11:01:10,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:01:10" (4/4) ... [2020-07-01 11:01:10,994 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:01:11,005 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:01:11,013 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:01:11,029 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:01:11,054 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:01:11,054 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:01:11,054 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:01:11,055 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:01:11,055 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:01:11,055 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:01:11,055 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:01:11,055 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:01:11,074 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-07-01 11:01:11,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:01:11,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-07-01 11:01:11,159 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-01 11:01:11,159 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-01 11:01:11,159 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-07-01 11:01:11,159 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-07-01 11:01:11,160 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-07-01 11:01:11,160 INFO L271 CegarLoopResult]: At program point recENTRY(lines 9 18) the Hoare annotation is: true [2020-07-01 11:01:11,160 INFO L268 CegarLoopResult]: For program point recFINAL(lines 9 18) no Hoare annotation was computed. [2020-07-01 11:01:11,160 INFO L268 CegarLoopResult]: For program point L12(lines 12 17) no Hoare annotation was computed. [2020-07-01 11:01:11,160 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-01 11:01:11,160 INFO L268 CegarLoopResult]: For program point L10(lines 10 17) no Hoare annotation was computed. [2020-07-01 11:01:11,161 INFO L268 CegarLoopResult]: For program point recEXIT(lines 9 18) no Hoare annotation was computed. [2020-07-01 11:01:11,161 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:01:11,161 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-07-01 11:01:11,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:01:11 BasicIcfg [2020-07-01 11:01:11,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:01:11,166 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:01:11,166 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:01:11,169 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:01:11,170 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:01:11,170 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:01:10" (1/5) ... [2020-07-01 11:01:11,171 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@702245ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:01:11, skipping insertion in model container [2020-07-01 11:01:11,171 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:01:11,171 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:01:10" (2/5) ... [2020-07-01 11:01:11,172 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@702245ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:01:11, skipping insertion in model container [2020-07-01 11:01:11,172 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:01:11,172 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:01:10" (3/5) ... [2020-07-01 11:01:11,172 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@702245ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:01:11, skipping insertion in model container [2020-07-01 11:01:11,172 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:01:11,172 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:01:10" (4/5) ... [2020-07-01 11:01:11,173 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@702245ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:01:11, skipping insertion in model container [2020-07-01 11:01:11,173 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:01:11,173 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:01:11" (5/5) ... [2020-07-01 11:01:11,175 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:01:11,201 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:01:11,201 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:01:11,201 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:01:11,201 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:01:11,201 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:01:11,202 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:01:11,202 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:01:11,202 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:01:11,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-01 11:01:11,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-07-01 11:01:11,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:01:11,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:01:11,236 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:01:11,236 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:01:11,236 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:01:11,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-01 11:01:11,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-07-01 11:01:11,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:01:11,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:01:11,239 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:01:11,240 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:01:11,245 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue [41] ULTIMATE.startENTRY-->L23: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 13#L23true [43] L23-->recENTRY: Formula: (= |v_rec_#in~xInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec_#in~x=|v_rec_#in~xInParam_4|} AuxVars[] AssignedVars[rec_#in~x]< 4#recENTRYtrue [2020-07-01 11:01:11,245 INFO L796 eck$LassoCheckResult]: Loop: 4#recENTRYtrue [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 15#L10true [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 6#L12true [55] L12-->L13: Formula: (= 0 (mod v_rec_~x_4 2)) InVars {rec_~x=v_rec_~x_4} OutVars{rec_~x=v_rec_~x_4} AuxVars[] AssignedVars[] 5#L13true [33] L13-->recENTRY: Formula: (= |v_rec_#in~xInParam_1| (let ((.cse0 (div v_rec_~x_10 2))) (ite (and (< v_rec_~x_10 0) (not (= 0 (mod v_rec_~x_10 2)))) (+ .cse0 1) .cse0))) InVars {rec_~x=v_rec_~x_10} OutVars{rec_#in~x=|v_rec_#in~xInParam_1|} AuxVars[] AssignedVars[rec_#in~x]< 4#recENTRYtrue [2020-07-01 11:01:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:11,252 INFO L82 PathProgramCache]: Analyzing trace with hash 2275, now seen corresponding path program 1 times [2020-07-01 11:01:11,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:11,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185263707] [2020-07-01 11:01:11,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:11,326 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:11,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:11,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1928543, now seen corresponding path program 1 times [2020-07-01 11:01:11,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:11,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138423792] [2020-07-01 11:01:11,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:11,364 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:11,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:11,367 INFO L82 PathProgramCache]: Analyzing trace with hash 2102015297, now seen corresponding path program 1 times [2020-07-01 11:01:11,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:11,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671313960] [2020-07-01 11:01:11,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:11,386 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:11,511 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:01:11,512 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:01:11,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:01:11,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:01:11,513 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:01:11,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:01:11,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:01:11,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:01:11,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:01:11,514 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:01:11,514 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:01:11,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,694 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:01:11,695 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -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:4560 -smt2 -in -t:12000 [2020-07-01 11:01:11,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:01:11,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:01:11,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:01:11,714 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -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:4560 -smt2 -in -t:12000 [2020-07-01 11:01:11,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:01:11,749 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:01:11,753 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:01:11,753 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret2=0} Honda state: {rec_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -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:4560 -smt2 -in -t:12000 [2020-07-01 11:01:11,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:01:11,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:01:11,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:01:11,791 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~x=0} Honda state: {rec_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -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:4560 -smt2 -in -t:12000 [2020-07-01 11:01:11,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:01:11,823 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -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:4560 -smt2 -in -t:12000 [2020-07-01 11:01:11,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:01:11,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:01:11,911 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:01:11,914 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:01:11,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:01:11,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:01:11,914 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:01:11,914 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:01:11,914 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:11,914 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:01:11,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:01:11,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:01:11,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:01:11,915 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:01:11,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:11,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:12,046 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:01:12,052 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/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 [2020-07-01 11:01:12,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:12,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:12,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:12,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:12,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:12,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:12,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:12,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:12,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:12,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:12,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:12,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:12,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:12,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:12,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:12,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:12,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:12,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/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 [2020-07-01 11:01:12,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:12,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:12,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:12,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:12,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:12,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:12,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:12,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:12,153 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/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 [2020-07-01 11:01:12,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:12,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:12,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:12,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:12,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:12,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:12,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:12,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:12,200 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:01:12,209 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:01:12,210 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:12,219 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:01:12,219 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:01:12,219 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:01:12,221 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~x) = 1*rec_#in~x Supporting invariants [] [2020-07-01 11:01:12,256 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:01:12,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:12,301 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:01:12,303 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:01:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:12,327 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:01:12,328 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:01:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:01:12,378 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:01:12,383 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 3 loop predicates [2020-07-01 11:01:12,385 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 13 states. Second operand 4 states. [2020-07-01 11:01:12,627 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 13 states.. Second operand 4 states. Result 124 states and 282 transitions. Complement of second has 28 states. [2020-07-01 11:01:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 11:01:12,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:01:12,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2020-07-01 11:01:12,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 99 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 11:01:12,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:01:12,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 99 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 11:01:12,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:01:12,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 99 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-01 11:01:12,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:01:12,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 282 transitions. [2020-07-01 11:01:12,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-07-01 11:01:12,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 27 states and 39 transitions. [2020-07-01 11:01:12,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-07-01 11:01:12,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-07-01 11:01:12,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 39 transitions. [2020-07-01 11:01:12,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:01:12,672 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2020-07-01 11:01:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 39 transitions. [2020-07-01 11:01:12,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2020-07-01 11:01:12,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 11:01:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2020-07-01 11:01:12,705 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-07-01 11:01:12,705 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-07-01 11:01:12,705 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:01:12,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2020-07-01 11:01:12,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-07-01 11:01:12,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:01:12,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:01:12,707 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:01:12,707 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:01:12,708 INFO L794 eck$LassoCheckResult]: Stem: 226#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L23: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 211#L23 [43] L23-->recENTRY: Formula: (= |v_rec_#in~xInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec_#in~x=|v_rec_#in~xInParam_4|} AuxVars[] AssignedVars[rec_#in~x]< 216#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 218#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 223#L12 [59] L12-->L15: Formula: (let ((.cse1 (+ v_rec_~x_7 1)) (.cse0 (mod v_rec_~x_7 2))) (and (> 0 (+ .cse0 (- 2))) (= v_rec_~x_6 .cse1) (= |v_rec_#t~pre1_1| .cse1) (> .cse0 0))) InVars {rec_~x=v_rec_~x_7} OutVars{rec_~x=v_rec_~x_6, rec_#t~pre1=|v_rec_#t~pre1_1|} AuxVars[] AssignedVars[rec_~x, rec_#t~pre1] 212#L15 [2020-07-01 11:01:12,708 INFO L796 eck$LassoCheckResult]: Loop: 212#L15 [38] L15-->recENTRY: Formula: (= |v_rec_#in~xInParam_2| |v_rec_#t~pre1_4|) InVars {rec_#t~pre1=|v_rec_#t~pre1_4|} OutVars{rec_#in~x=|v_rec_#in~xInParam_2|} AuxVars[] AssignedVars[rec_#in~x]< 220#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 229#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 228#L12 [68] L12-->L15: Formula: (let ((.cse0 (+ v_rec_~x_7 1))) (and (>= v_rec_~x_7 0) (= v_rec_~x_6 .cse0) (= |v_rec_#t~pre1_1| .cse0) (> (mod v_rec_~x_7 2) 0))) InVars {rec_~x=v_rec_~x_7} OutVars{rec_~x=v_rec_~x_6, rec_#t~pre1=|v_rec_#t~pre1_1|} AuxVars[] AssignedVars[rec_~x, rec_#t~pre1] 212#L15 [2020-07-01 11:01:12,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:12,709 INFO L82 PathProgramCache]: Analyzing trace with hash 67806948, now seen corresponding path program 1 times [2020-07-01 11:01:12,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:12,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864706313] [2020-07-01 11:01:12,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:12,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:12,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:12,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2088011, now seen corresponding path program 1 times [2020-07-01 11:01:12,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:12,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093158547] [2020-07-01 11:01:12,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:12,734 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:12,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:12,734 INFO L82 PathProgramCache]: Analyzing trace with hash 518412718, now seen corresponding path program 1 times [2020-07-01 11:01:12,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:12,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914851613] [2020-07-01 11:01:12,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:01:12,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914851613] [2020-07-01 11:01:12,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:01:12,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 11:01:12,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306032020] [2020-07-01 11:01:12,910 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:01:12,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:01:12,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:01:12,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:01:12,911 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:01:12,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:01:12,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:01:12,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:01:12,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:01:12,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:01:12,912 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:01:12,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:12,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:12,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:12,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:12,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:12,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:12,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:13,048 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:01:13,048 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -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:4560 -smt2 -in -t:12000 [2020-07-01 11:01:13,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:01:13,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:01:13,059 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:01:13,059 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~store~0=0} Honda state: {rec_~store~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -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:4560 -smt2 -in -t:12000 [2020-07-01 11:01:13,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:01:13,092 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:01:13,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:01:13,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:01:18,448 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:01:18,452 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:01:18,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:01:18,452 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:01:18,452 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:01:18,452 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:01:18,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:01:18,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:01:18,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:01:18,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:01:18,454 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:01:18,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:18,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:18,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:18,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:18,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:18,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:18,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:18,594 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:01:18,594 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:18,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:18,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:18,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:18,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:18,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:18,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:18,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:18,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:18,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:18,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,762 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:18,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:18,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,800 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:18,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:18,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:18,867 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,874 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:18,878 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:18,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,921 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:18,922 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:18,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,959 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:18,960 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:18,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:18,962 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:18,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:18,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:18,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:18,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:18,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:18,997 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:18,998 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:18,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,036 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,037 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,074 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,075 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,112 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,113 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:19,144 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,151 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:19,155 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:19,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,198 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:19,199 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:19,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,206 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,241 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:19,242 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:19,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,280 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:19,281 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:19,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,318 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:19,319 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:19,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,322 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,357 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:19,357 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:19,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,395 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:19,395 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:19,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:19,427 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,434 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:19,439 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:19,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,482 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:19,483 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:19,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,521 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:19,522 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:19,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,559 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:19,560 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:19,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,598 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:19,599 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:19,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,637 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:19,638 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:19,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,641 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:19,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,676 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:19,677 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:19,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,680 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:19,709 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,715 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:19,715 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:19,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,716 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,721 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,766 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:19,767 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:19,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,767 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,769 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,806 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:19,806 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:19,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,807 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,808 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,812 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,846 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:19,846 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:19,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,847 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,848 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,885 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:19,885 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:19,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,886 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,887 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,928 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:19,928 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:19,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,929 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,930 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:19,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:19,968 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:19,968 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:19,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:19,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:19,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:19,969 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:01:19,970 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:01:19,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:19,973 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:20,002 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,010 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,010 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-07-01 11:01:20,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,011 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,016 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,067 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,067 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-07-01 11:01:20,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,068 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,070 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,113 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,113 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-07-01 11:01:20,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,113 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,115 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,154 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,154 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-07-01 11:01:20,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,155 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,156 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,195 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,195 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-07-01 11:01:20,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,196 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,197 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,235 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,235 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-07-01 11:01:20,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,236 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,237 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,241 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,276 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,276 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-07-01 11:01:20,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,277 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,278 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,282 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:20,311 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,317 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,317 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,318 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:20,323 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:20,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,385 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,385 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,386 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:20,387 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:20,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,428 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,428 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,429 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:20,430 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:20,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,473 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,473 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,474 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:20,476 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:20,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,517 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,518 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,518 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:20,520 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:20,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,559 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,560 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,560 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:20,561 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:20,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,601 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,601 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,602 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-07-01 11:01:20,603 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-07-01 11:01:20,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:20,637 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,643 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,643 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:20,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,644 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,647 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,689 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,689 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:20,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,690 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,691 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,694 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,728 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,729 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:20,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,729 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,730 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,733 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,767 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,767 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:20,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,768 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,768 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,805 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,805 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:20,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,806 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,807 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,810 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,845 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,845 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:20,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,846 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,846 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,883 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,883 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-07-01 11:01:20,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,884 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-01 11:01:20,885 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-01 11:01:20,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:20,917 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,923 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,923 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,924 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-07-01 11:01:20,930 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:01:20,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:20,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:20,977 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:20,977 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:20,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:20,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:20,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:20,978 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-07-01 11:01:20,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:01:20,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:20,984 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:21,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:21,020 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:21,020 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:21,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:21,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:21,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:21,021 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-07-01 11:01:21,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:01:21,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:21,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:21,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:21,063 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:21,064 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:21,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:21,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:21,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:21,064 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-07-01 11:01:21,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:01:21,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:21,071 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:21,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:21,106 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:21,106 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:21,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:21,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:21,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:21,107 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-07-01 11:01:21,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:01:21,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:21,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:21,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:21,150 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:21,150 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:21,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:21,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:21,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:21,151 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-07-01 11:01:21,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:01:21,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:21,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-01 11:01:21,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:21,192 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-07-01 11:01:21,192 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-07-01 11:01:21,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:21,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:21,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:21,193 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-07-01 11:01:21,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:01:21,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:21,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:01:21,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:01:21,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:01:21,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:01:21,234 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-07-01 11:01:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:01:21,346 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2020-07-01 11:01:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 11:01:21,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2020-07-01 11:01:21,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-07-01 11:01:21,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 41 transitions. [2020-07-01 11:01:21,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-07-01 11:01:21,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-07-01 11:01:21,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 41 transitions. [2020-07-01 11:01:21,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:01:21,354 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 41 transitions. [2020-07-01 11:01:21,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 41 transitions. [2020-07-01 11:01:21,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-07-01 11:01:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-01 11:01:21,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-07-01 11:01:21,359 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-07-01 11:01:21,359 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-07-01 11:01:21,359 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:01:21,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2020-07-01 11:01:21,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-07-01 11:01:21,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:01:21,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:01:21,361 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:01:21,361 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:01:21,362 INFO L794 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L23: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 276#L23 [43] L23-->recENTRY: Formula: (= |v_rec_#in~xInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec_#in~x=|v_rec_#in~xInParam_4|} AuxVars[] AssignedVars[rec_#in~x]< 295#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 284#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 285#L12 [59] L12-->L15: Formula: (let ((.cse1 (+ v_rec_~x_7 1)) (.cse0 (mod v_rec_~x_7 2))) (and (> 0 (+ .cse0 (- 2))) (= v_rec_~x_6 .cse1) (= |v_rec_#t~pre1_1| .cse1) (> .cse0 0))) InVars {rec_~x=v_rec_~x_7} OutVars{rec_~x=v_rec_~x_6, rec_#t~pre1=|v_rec_#t~pre1_1|} AuxVars[] AssignedVars[rec_~x, rec_#t~pre1] 286#L15 [2020-07-01 11:01:21,362 INFO L796 eck$LassoCheckResult]: Loop: 286#L15 [38] L15-->recENTRY: Formula: (= |v_rec_#in~xInParam_2| |v_rec_#t~pre1_4|) InVars {rec_#t~pre1=|v_rec_#t~pre1_4|} OutVars{rec_#in~x=|v_rec_#in~xInParam_2|} AuxVars[] AssignedVars[rec_#in~x]< 291#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 298#L10 [46] L10-->recFINAL: Formula: (and (<= v_rec_~x_2 0) (= |v_rec_#res_1| v_rec_~x_2)) InVars {rec_~x=v_rec_~x_2} OutVars{rec_#res=|v_rec_#res_1|, rec_~x=v_rec_~x_2} AuxVars[] AssignedVars[rec_#res] 297#recFINAL [44] recFINAL-->recEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 296#recEXIT >[49] recEXIT-->L15-1: AOR: Formula: (= |v_rec_#t~ret2_4| |v_rec_#resOutParam_2|) InVars {rec_#res=|v_rec_#resOutParam_2|} OutVars{rec_#t~ret2=|v_rec_#t~ret2_4|} AuxVars[] AssignedVars[rec_#t~ret2] LVA: Formula: (= |v_rec_#in~xInParam_2| |v_rec_#t~pre1_4|) InVars {rec_#t~pre1=|v_rec_#t~pre1_4|} OutVars{rec_#in~x=|v_rec_#in~xInParam_2|} AuxVars[] AssignedVars[rec_#in~x] 274#L15-1 [31] L15-1-->L16: Formula: (let ((.cse0 (+ v_rec_~x_9 (- 1)))) (and (= v_rec_~x_8 .cse0) (= v_rec_~store~0_1 |v_rec_#t~ret2_3|) (= |v_rec_#t~pre3_1| .cse0))) InVars {rec_#t~ret2=|v_rec_#t~ret2_3|, rec_~x=v_rec_~x_9} OutVars{rec_~x=v_rec_~x_8, rec_~store~0=v_rec_~store~0_1, rec_#t~pre3=|v_rec_#t~pre3_1|, rec_#t~ret2=|v_rec_#t~ret2_2|, rec_#t~pre1=|v_rec_#t~pre1_3|} AuxVars[] AssignedVars[rec_~x, rec_~store~0, rec_#t~pre3, rec_#t~ret2, rec_#t~pre1] 275#L16 [37] L16-->recENTRY: Formula: (= |v_rec_#in~xInParam_3| |v_rec_#t~pre3_4|) InVars {rec_#t~pre3=|v_rec_#t~pre3_4|} OutVars{rec_#in~x=|v_rec_#in~xInParam_3|} AuxVars[] AssignedVars[rec_#in~x]< 280#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 281#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 300#L12 [68] L12-->L15: Formula: (let ((.cse0 (+ v_rec_~x_7 1))) (and (>= v_rec_~x_7 0) (= v_rec_~x_6 .cse0) (= |v_rec_#t~pre1_1| .cse0) (> (mod v_rec_~x_7 2) 0))) InVars {rec_~x=v_rec_~x_7} OutVars{rec_~x=v_rec_~x_6, rec_#t~pre1=|v_rec_#t~pre1_1|} AuxVars[] AssignedVars[rec_~x, rec_#t~pre1] 286#L15 [2020-07-01 11:01:21,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:21,362 INFO L82 PathProgramCache]: Analyzing trace with hash 67806948, now seen corresponding path program 2 times [2020-07-01 11:01:21,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:21,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977574417] [2020-07-01 11:01:21,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:21,373 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:21,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash 2009414706, now seen corresponding path program 1 times [2020-07-01 11:01:21,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:21,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112125552] [2020-07-01 11:01:21,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:21,389 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:21,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:21,389 INFO L82 PathProgramCache]: Analyzing trace with hash -905780395, now seen corresponding path program 1 times [2020-07-01 11:01:21,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:21,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192329897] [2020-07-01 11:01:21,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 11:01:21,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192329897] [2020-07-01 11:01:21,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:01:21,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-01 11:01:21,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748672787] [2020-07-01 11:01:21,571 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:01:21,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:01:21,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:01:21,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:01:21,571 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:01:21,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:01:21,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:01:21,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:01:21,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:01:21,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:01:21,572 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:01:21,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:21,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:21,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:21,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:21,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:21,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:21,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:21,681 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:01:21,682 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:01:21,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:01:21,689 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:01:21,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:01:21,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:01:22,241 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:01:22,243 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:01:22,243 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:01:22,244 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:01:22,244 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:01:22,244 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:01:22,244 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:22,244 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:01:22,244 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:01:22,244 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:01:22,244 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:01:22,244 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:01:22,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:22,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:22,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:22,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:22,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:22,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:22,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:01:22,350 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:01:22,350 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:22,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:22,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:22,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:22,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:22,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:22,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:22,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:22,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:22,358 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:22,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:01:22,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:01:22,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:01:22,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:01:22,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:01:22,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:01:22,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:01:22,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:01:22,402 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:01:22,406 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:01:22,406 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:01:22,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:01:22,410 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:01:22,411 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:01:22,411 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#t~pre1) = -2*rec_#t~pre1 + 1 Supporting invariants [] [2020-07-01 11:01:22,441 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:01:22,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:22,486 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:01:22,487 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:01:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:22,518 INFO L264 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-01 11:01:22,519 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:01:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:01:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:22,693 INFO L264 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:01:22,694 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:01:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:22,733 INFO L264 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:01:22,734 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:01:22,739 INFO L98 LoopCannibalizer]: 6 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 11:01:22,740 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 9 loop predicates [2020-07-01 11:01:22,740 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 27 states and 37 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-07-01 11:01:24,040 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 27 states and 37 transitions. cyclomatic complexity: 12. Second operand 7 states. Result 5616 states and 11579 transitions. Complement of second has 2046 states. [2020-07-01 11:01:24,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 19 states 1 stem states 15 non-accepting loop states 2 accepting loop states [2020-07-01 11:01:24,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:01:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 121 transitions. [2020-07-01 11:01:24,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 121 transitions. Stem has 5 letters. Loop has 10 letters. [2020-07-01 11:01:24,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:01:24,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 121 transitions. Stem has 15 letters. Loop has 10 letters. [2020-07-01 11:01:24,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:01:24,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 121 transitions. Stem has 5 letters. Loop has 20 letters. [2020-07-01 11:01:24,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:01:24,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5616 states and 11579 transitions. [2020-07-01 11:01:24,215 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 59 [2020-07-01 11:01:24,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5616 states to 295 states and 447 transitions. [2020-07-01 11:01:24,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 251 [2020-07-01 11:01:24,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 259 [2020-07-01 11:01:24,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 295 states and 447 transitions. [2020-07-01 11:01:24,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:01:24,232 INFO L688 BuchiCegarLoop]: Abstraction has 295 states and 447 transitions. [2020-07-01 11:01:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states and 447 transitions. [2020-07-01 11:01:24,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 157. [2020-07-01 11:01:24,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-07-01 11:01:24,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 207 transitions. [2020-07-01 11:01:24,260 INFO L711 BuchiCegarLoop]: Abstraction has 157 states and 207 transitions. [2020-07-01 11:01:24,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:01:24,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 11:01:24,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-01 11:01:24,261 INFO L87 Difference]: Start difference. First operand 157 states and 207 transitions. Second operand 6 states. [2020-07-01 11:01:24,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:01:24,361 INFO L93 Difference]: Finished difference Result 110 states and 155 transitions. [2020-07-01 11:01:24,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 11:01:24,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 155 transitions. [2020-07-01 11:01:24,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2020-07-01 11:01:24,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 102 states and 147 transitions. [2020-07-01 11:01:24,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2020-07-01 11:01:24,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2020-07-01 11:01:24,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 147 transitions. [2020-07-01 11:01:24,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:01:24,372 INFO L688 BuchiCegarLoop]: Abstraction has 102 states and 147 transitions. [2020-07-01 11:01:24,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 147 transitions. [2020-07-01 11:01:24,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 84. [2020-07-01 11:01:24,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-07-01 11:01:24,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2020-07-01 11:01:24,381 INFO L711 BuchiCegarLoop]: Abstraction has 84 states and 111 transitions. [2020-07-01 11:01:24,381 INFO L591 BuchiCegarLoop]: Abstraction has 84 states and 111 transitions. [2020-07-01 11:01:24,381 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:01:24,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states and 111 transitions. [2020-07-01 11:01:24,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2020-07-01 11:01:24,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:01:24,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:01:24,384 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:01:24,384 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:01:24,384 INFO L794 eck$LassoCheckResult]: Stem: 8420#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L23: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 8411#L23 [43] L23-->recENTRY: Formula: (= |v_rec_#in~xInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec_#in~x=|v_rec_#in~xInParam_4|} AuxVars[] AssignedVars[rec_#in~x]< 8430#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 8405#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 8456#L12 [68] L12-->L15: Formula: (let ((.cse0 (+ v_rec_~x_7 1))) (and (>= v_rec_~x_7 0) (= v_rec_~x_6 .cse0) (= |v_rec_#t~pre1_1| .cse0) (> (mod v_rec_~x_7 2) 0))) InVars {rec_~x=v_rec_~x_7} OutVars{rec_~x=v_rec_~x_6, rec_#t~pre1=|v_rec_#t~pre1_1|} AuxVars[] AssignedVars[rec_~x, rec_#t~pre1] 8457#L15 [2020-07-01 11:01:24,385 INFO L796 eck$LassoCheckResult]: Loop: 8457#L15 [38] L15-->recENTRY: Formula: (= |v_rec_#in~xInParam_2| |v_rec_#t~pre1_4|) InVars {rec_#t~pre1=|v_rec_#t~pre1_4|} OutVars{rec_#in~x=|v_rec_#in~xInParam_2|} AuxVars[] AssignedVars[rec_#in~x]< 8463#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 8462#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 8461#L12 [55] L12-->L13: Formula: (= 0 (mod v_rec_~x_4 2)) InVars {rec_~x=v_rec_~x_4} OutVars{rec_~x=v_rec_~x_4} AuxVars[] AssignedVars[] 8408#L13 [33] L13-->recENTRY: Formula: (= |v_rec_#in~xInParam_1| (let ((.cse0 (div v_rec_~x_10 2))) (ite (and (< v_rec_~x_10 0) (not (= 0 (mod v_rec_~x_10 2)))) (+ .cse0 1) .cse0))) InVars {rec_~x=v_rec_~x_10} OutVars{rec_#in~x=|v_rec_#in~xInParam_1|} AuxVars[] AssignedVars[rec_#in~x]< 8410#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 8458#L10 [46] L10-->recFINAL: Formula: (and (<= v_rec_~x_2 0) (= |v_rec_#res_1| v_rec_~x_2)) InVars {rec_~x=v_rec_~x_2} OutVars{rec_#res=|v_rec_#res_1|, rec_~x=v_rec_~x_2} AuxVars[] AssignedVars[rec_#res] 8460#recFINAL [44] recFINAL-->recEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 8468#recEXIT >[48] recEXIT-->L13-1: AOR: Formula: (= |v_rec_#t~ret0_4| |v_rec_#resOutParam_1|) InVars {rec_#res=|v_rec_#resOutParam_1|} OutVars{rec_#t~ret0=|v_rec_#t~ret0_4|} AuxVars[] AssignedVars[rec_#t~ret0] LVA: Formula: (= |v_rec_#in~xInParam_1| (let ((.cse0 (div v_rec_~x_10 2))) (ite (and (< v_rec_~x_10 0) (not (= 0 (mod v_rec_~x_10 2)))) (+ .cse0 1) .cse0))) InVars {rec_~x=v_rec_~x_10} OutVars{rec_#in~x=|v_rec_#in~xInParam_1|} AuxVars[] AssignedVars[rec_#in~x] 8467#L13-1 [36] L13-1-->recFINAL: Formula: (= |v_rec_#res_2| |v_rec_#t~ret0_3|) InVars {rec_#t~ret0=|v_rec_#t~ret0_3|} OutVars{rec_#res=|v_rec_#res_2|, rec_#t~ret0=|v_rec_#t~ret0_2|} AuxVars[] AssignedVars[rec_#t~ret0, rec_#res] 8466#recFINAL [44] recFINAL-->recEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 8465#recEXIT >[49] recEXIT-->L15-1: AOR: Formula: (= |v_rec_#t~ret2_4| |v_rec_#resOutParam_2|) InVars {rec_#res=|v_rec_#resOutParam_2|} OutVars{rec_#t~ret2=|v_rec_#t~ret2_4|} AuxVars[] AssignedVars[rec_#t~ret2] LVA: Formula: (= |v_rec_#in~xInParam_2| |v_rec_#t~pre1_4|) InVars {rec_#t~pre1=|v_rec_#t~pre1_4|} OutVars{rec_#in~x=|v_rec_#in~xInParam_2|} AuxVars[] AssignedVars[rec_#in~x] 8464#L15-1 [31] L15-1-->L16: Formula: (let ((.cse0 (+ v_rec_~x_9 (- 1)))) (and (= v_rec_~x_8 .cse0) (= v_rec_~store~0_1 |v_rec_#t~ret2_3|) (= |v_rec_#t~pre3_1| .cse0))) InVars {rec_#t~ret2=|v_rec_#t~ret2_3|, rec_~x=v_rec_~x_9} OutVars{rec_~x=v_rec_~x_8, rec_~store~0=v_rec_~store~0_1, rec_#t~pre3=|v_rec_#t~pre3_1|, rec_#t~ret2=|v_rec_#t~ret2_2|, rec_#t~pre1=|v_rec_#t~pre1_3|} AuxVars[] AssignedVars[rec_~x, rec_~store~0, rec_#t~pre3, rec_#t~ret2, rec_#t~pre1] 8409#L16 [37] L16-->recENTRY: Formula: (= |v_rec_#in~xInParam_3| |v_rec_#t~pre3_4|) InVars {rec_#t~pre3=|v_rec_#t~pre3_4|} OutVars{rec_#in~x=|v_rec_#in~xInParam_3|} AuxVars[] AssignedVars[rec_#in~x]< 8410#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 8458#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 8459#L12 [68] L12-->L15: Formula: (let ((.cse0 (+ v_rec_~x_7 1))) (and (>= v_rec_~x_7 0) (= v_rec_~x_6 .cse0) (= |v_rec_#t~pre1_1| .cse0) (> (mod v_rec_~x_7 2) 0))) InVars {rec_~x=v_rec_~x_7} OutVars{rec_~x=v_rec_~x_6, rec_#t~pre1=|v_rec_#t~pre1_1|} AuxVars[] AssignedVars[rec_~x, rec_#t~pre1] 8457#L15 [2020-07-01 11:01:24,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:24,385 INFO L82 PathProgramCache]: Analyzing trace with hash 67806957, now seen corresponding path program 1 times [2020-07-01 11:01:24,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:24,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528449975] [2020-07-01 11:01:24,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:24,396 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:24,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:24,396 INFO L82 PathProgramCache]: Analyzing trace with hash -8292042, now seen corresponding path program 1 times [2020-07-01 11:01:24,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:24,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902886840] [2020-07-01 11:01:24,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:01:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 11:01:24,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902886840] [2020-07-01 11:01:24,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:01:24,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-01 11:01:24,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152897023] [2020-07-01 11:01:24,471 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 11:01:24,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:01:24,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 11:01:24,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-01 11:01:24,472 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. cyclomatic complexity: 30 Second operand 6 states. [2020-07-01 11:01:24,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:01:24,527 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-07-01 11:01:24,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-01 11:01:24,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 43 transitions. [2020-07-01 11:01:24,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2020-07-01 11:01:24,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 32 states and 39 transitions. [2020-07-01 11:01:24,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2020-07-01 11:01:24,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2020-07-01 11:01:24,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 39 transitions. [2020-07-01 11:01:24,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:01:24,532 INFO L688 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-07-01 11:01:24,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 39 transitions. [2020-07-01 11:01:24,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2020-07-01 11:01:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 11:01:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-07-01 11:01:24,534 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-07-01 11:01:24,534 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-07-01 11:01:24,534 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:01:24,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-07-01 11:01:24,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 11:01:24,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:01:24,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:01:24,535 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:01:24,535 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2020-07-01 11:01:24,536 INFO L794 eck$LassoCheckResult]: Stem: 8553#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L23: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 8554#L23 [43] L23-->recENTRY: Formula: (= |v_rec_#in~xInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec_#in~x=|v_rec_#in~xInParam_4|} AuxVars[] AssignedVars[rec_#in~x]< 8559#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 8551#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 8560#L12 [59] L12-->L15: Formula: (let ((.cse1 (+ v_rec_~x_7 1)) (.cse0 (mod v_rec_~x_7 2))) (and (> 0 (+ .cse0 (- 2))) (= v_rec_~x_6 .cse1) (= |v_rec_#t~pre1_1| .cse1) (> .cse0 0))) InVars {rec_~x=v_rec_~x_7} OutVars{rec_~x=v_rec_~x_6, rec_#t~pre1=|v_rec_#t~pre1_1|} AuxVars[] AssignedVars[rec_~x, rec_#t~pre1] 8547#L15 [2020-07-01 11:01:24,536 INFO L796 eck$LassoCheckResult]: Loop: 8547#L15 [38] L15-->recENTRY: Formula: (= |v_rec_#in~xInParam_2| |v_rec_#t~pre1_4|) InVars {rec_#t~pre1=|v_rec_#t~pre1_4|} OutVars{rec_#in~x=|v_rec_#in~xInParam_2|} AuxVars[] AssignedVars[rec_#in~x]< 8546#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 8548#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 8557#L12 [55] L12-->L13: Formula: (= 0 (mod v_rec_~x_4 2)) InVars {rec_~x=v_rec_~x_4} OutVars{rec_~x=v_rec_~x_4} AuxVars[] AssignedVars[] 8555#L13 [33] L13-->recENTRY: Formula: (= |v_rec_#in~xInParam_1| (let ((.cse0 (div v_rec_~x_10 2))) (ite (and (< v_rec_~x_10 0) (not (= 0 (mod v_rec_~x_10 2)))) (+ .cse0 1) .cse0))) InVars {rec_~x=v_rec_~x_10} OutVars{rec_#in~x=|v_rec_#in~xInParam_1|} AuxVars[] AssignedVars[rec_#in~x]< 8556#recENTRY [32] recENTRY-->L10: Formula: (= v_rec_~x_1 |v_rec_#in~x_1|) InVars {rec_#in~x=|v_rec_#in~x_1|} OutVars{rec_~x=v_rec_~x_1, rec_#in~x=|v_rec_#in~x_1|} AuxVars[] AssignedVars[rec_~x] 8562#L10 [52] L10-->L12: Formula: (> v_rec_~x_3 0) InVars {rec_~x=v_rec_~x_3} OutVars{rec_~x=v_rec_~x_3} AuxVars[] AssignedVars[] 8561#L12 [68] L12-->L15: Formula: (let ((.cse0 (+ v_rec_~x_7 1))) (and (>= v_rec_~x_7 0) (= v_rec_~x_6 .cse0) (= |v_rec_#t~pre1_1| .cse0) (> (mod v_rec_~x_7 2) 0))) InVars {rec_~x=v_rec_~x_7} OutVars{rec_~x=v_rec_~x_6, rec_#t~pre1=|v_rec_#t~pre1_1|} AuxVars[] AssignedVars[rec_~x, rec_#t~pre1] 8547#L15 [2020-07-01 11:01:24,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:24,536 INFO L82 PathProgramCache]: Analyzing trace with hash 67806948, now seen corresponding path program 3 times [2020-07-01 11:01:24,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:24,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216438581] [2020-07-01 11:01:24,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:24,544 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:24,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:24,545 INFO L82 PathProgramCache]: Analyzing trace with hash -129299411, now seen corresponding path program 1 times [2020-07-01 11:01:24,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:24,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428405191] [2020-07-01 11:01:24,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:24,557 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:01:24,558 INFO L82 PathProgramCache]: Analyzing trace with hash 721297424, now seen corresponding path program 1 times [2020-07-01 11:01:24,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:01:24,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555533495] [2020-07-01 11:01:24,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:01:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:01:24,575 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:01:24,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:01:24 BasicIcfg [2020-07-01 11:01:24,892 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:01:24,895 INFO L168 Benchmark]: Toolchain (without parser) took 14576.69 ms. Allocated memory was 649.6 MB in the beginning and 843.6 MB in the end (delta: 194.0 MB). Free memory was 561.7 MB in the beginning and 484.8 MB in the end (delta: 77.0 MB). Peak memory consumption was 271.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:01:24,895 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 589.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:01:24,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.53 ms. Allocated memory was 649.6 MB in the beginning and 691.0 MB in the end (delta: 41.4 MB). Free memory was 561.7 MB in the beginning and 654.4 MB in the end (delta: -92.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:01:24,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.87 ms. Allocated memory is still 691.0 MB. Free memory was 654.4 MB in the beginning and 651.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:01:24,897 INFO L168 Benchmark]: Boogie Preprocessor took 17.28 ms. Allocated memory is still 691.0 MB. Free memory is still 651.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:01:24,897 INFO L168 Benchmark]: RCFGBuilder took 233.54 ms. Allocated memory is still 691.0 MB. Free memory was 651.7 MB in the beginning and 635.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:01:24,897 INFO L168 Benchmark]: BlockEncodingV2 took 92.71 ms. Allocated memory is still 691.0 MB. Free memory was 635.9 MB in the beginning and 629.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:01:24,898 INFO L168 Benchmark]: TraceAbstraction took 179.42 ms. Allocated memory is still 691.0 MB. Free memory was 629.1 MB in the beginning and 618.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:01:24,898 INFO L168 Benchmark]: BuchiAutomizer took 13726.86 ms. Allocated memory was 691.0 MB in the beginning and 843.6 MB in the end (delta: 152.6 MB). Free memory was 617.0 MB in the beginning and 484.8 MB in the end (delta: 132.2 MB). Peak memory consumption was 284.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:01:24,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 17 locations, 21 edges - StatisticsResult: Encoded RCFG 13 locations, 34 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 589.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 287.53 ms. Allocated memory was 649.6 MB in the beginning and 691.0 MB in the end (delta: 41.4 MB). Free memory was 561.7 MB in the beginning and 654.4 MB in the end (delta: -92.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.87 ms. Allocated memory is still 691.0 MB. Free memory was 654.4 MB in the beginning and 651.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.28 ms. Allocated memory is still 691.0 MB. Free memory is still 651.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 233.54 ms. Allocated memory is still 691.0 MB. Free memory was 651.7 MB in the beginning and 635.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 92.71 ms. Allocated memory is still 691.0 MB. Free memory was 635.9 MB in the beginning and 629.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 179.42 ms. Allocated memory is still 691.0 MB. Free memory was 629.1 MB in the beginning and 618.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 13726.86 ms. Allocated memory was 691.0 MB in the beginning and 843.6 MB in the end (delta: 152.6 MB). Free memory was 617.0 MB in the beginning and 484.8 MB in the end (delta: 132.2 MB). Peak memory consumption was 284.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 5 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function \old(x) and consists of 7 locations. One nondeterministic module has affine ranking function -2 * aux-++x-aux + 1 and consists of 19 locations. 3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.6s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 11.0s. Construction of modules took 0.4s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 180 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 84 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 87 SDtfs, 113 SDslu, 188 SDs, 0 SdLazy, 380 SolverSat, 119 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc1 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div360 bol100 ite100 ukn100 eq144 hnf53 smp83 dnf100 smp100 tf104 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 25ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {x=2, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@607439fd=0, \old(x)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ec6d0d2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7f15aa98=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14269cad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@360b5f85=0, store=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@101b369d=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1aae0674=0, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int x = __VERIFIER_nondet_int(); [L22] int y; [L23] CALL rec(x) [L10] COND FALSE !(x <= 0) [L12] COND FALSE !(x%2 == 0) [L15] ++x Loop: [L15] CALL rec(++x) [L10] COND FALSE !(x <= 0) [L12] COND TRUE x%2 == 0 [L13] CALL rec(x/2) [L10] COND FALSE !(x <= 0) [L12] COND FALSE !(x%2 == 0) [L15] ++x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:01:06.996 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_5nn6Xz/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:01:25.139 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check