/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:52:36,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:52:36,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:52:36,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:52:36,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:52:36,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:52:36,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:52:36,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:52:36,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:52:36,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:52:36,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:52:36,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:52:36,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:52:36,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:52:36,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:52:36,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:52:36,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:52:36,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:52:36,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:52:36,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:52:36,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:52:36,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:52:36,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:52:36,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:52:36,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:52:36,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:52:36,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:52:36,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:52:36,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:52:36,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:52:36,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:52:36,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:52:36,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:52:36,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:52:36,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:52:36,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:52:36,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:52:36,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:52:36,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:52:36,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:52:36,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:52:36,280 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:52:36,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:52:36,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:52:36,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:52:36,296 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:52:36,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:52:36,296 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:52:36,296 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:52:36,296 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:52:36,297 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:52:36,297 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:52:36,297 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:52:36,297 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:52:36,297 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:52:36,297 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:52:36,298 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:36,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:52:36,298 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:52:36,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:52:36,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:52:36,298 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:52:36,299 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:52:36,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:52:36,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:52:36,299 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:52:36,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:52:36,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:52:36,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:52:36,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:52:36,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:52:36,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:52:36,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:52:36,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:52:36,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:52:36,491 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:52:36,492 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:52:36,553 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_MTrcRm/tmp/08b23d3bc9634c9fb3af6391d28e5efb/FLAGd36c453a2 [2020-07-01 11:52:36,906 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:52:36,907 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:52:36,914 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_MTrcRm/tmp/08b23d3bc9634c9fb3af6391d28e5efb/FLAGd36c453a2 [2020-07-01 11:52:37,337 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_MTrcRm/tmp/08b23d3bc9634c9fb3af6391d28e5efb [2020-07-01 11:52:37,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:52:37,351 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:52:37,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:52:37,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:52:37,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:52:37,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10494a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37, skipping insertion in model container [2020-07-01 11:52:37,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:52:37,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:52:37,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:52:37,603 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:52:37,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:52:37,634 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:52:37,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37 WrapperNode [2020-07-01 11:52:37,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:52:37,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:52:37,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:52:37,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:52:37,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:52:37,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:52:37,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:52:37,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:52:37,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:52:37,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:52:37,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:52:37,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:52:37,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (1/1) ... No working directory specified, using /export/starexec/sandbox/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 11:52:37,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:52:37,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:52:37,901 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:52:37,901 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:52:37,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:52:37 BoogieIcfgContainer [2020-07-01 11:52:37,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:52:37,905 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:52:37,905 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:52:37,908 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:52:37,908 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:52:37" (1/1) ... [2020-07-01 11:52:37,921 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 11:52:37,923 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:52:37,923 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:52:37,924 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:52:37,924 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:52:37,926 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:52:37,927 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:52:37,927 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:52:37,942 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:52:37,957 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:52:37,961 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:52:37,963 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:52:37,974 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:52:37,976 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:52:37,978 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:52:37,978 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:52:37,979 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:52:37,979 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:52:37,979 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 11:52:37,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:52:37 BasicIcfg [2020-07-01 11:52:37,980 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:52:37,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:52:37,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:52:37,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:52:37,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:52:37" (1/4) ... [2020-07-01 11:52:37,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4ed83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:52:37, skipping insertion in model container [2020-07-01 11:52:37,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (2/4) ... [2020-07-01 11:52:37,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4ed83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:52:37, skipping insertion in model container [2020-07-01 11:52:37,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:52:37" (3/4) ... [2020-07-01 11:52:37,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4ed83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:52:37, skipping insertion in model container [2020-07-01 11:52:37,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:52:37" (4/4) ... [2020-07-01 11:52:37,988 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:52:37,999 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:52:38,006 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:52:38,019 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:52:38,042 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:52:38,042 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:52:38,042 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:52:38,043 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:52:38,043 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:52:38,043 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:52:38,043 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:52:38,043 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:52:38,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:52:38,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:52:38,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:52:38,116 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:52:38,117 INFO L268 CegarLoopResult]: For program point L21(lines 21 28) no Hoare annotation was computed. [2020-07-01 11:52:38,117 INFO L271 CegarLoopResult]: At program point L21-2(lines 20 29) the Hoare annotation is: true [2020-07-01 11:52:38,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:52:38 BasicIcfg [2020-07-01 11:52:38,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:52:38,126 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:52:38,127 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:52:38,130 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:52:38,131 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:52:38,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:52:37" (1/5) ... [2020-07-01 11:52:38,131 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@544b2ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:52:38, skipping insertion in model container [2020-07-01 11:52:38,131 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:52:38,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:52:37" (2/5) ... [2020-07-01 11:52:38,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@544b2ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:52:38, skipping insertion in model container [2020-07-01 11:52:38,132 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:52:38,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:52:37" (3/5) ... [2020-07-01 11:52:38,133 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@544b2ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:52:38, skipping insertion in model container [2020-07-01 11:52:38,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:52:38,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:52:37" (4/5) ... [2020-07-01 11:52:38,133 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@544b2ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:52:38, skipping insertion in model container [2020-07-01 11:52:38,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:52:38,134 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:52:38" (5/5) ... [2020-07-01 11:52:38,135 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:52:38,164 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:52:38,164 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:52:38,164 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:52:38,164 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:52:38,165 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:52:38,165 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:52:38,165 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:52:38,165 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:52:38,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:52:38,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:52:38,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:52:38,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:52:38,192 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:52:38,192 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:52:38,193 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:52:38,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:52:38,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:52:38,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:52:38,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:52:38,194 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:52:38,194 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:52:38,199 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~d~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 5#L21-2true [2020-07-01 11:52:38,199 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 3#L21true [38] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~d~0_8 |v_ULTIMATE.start_main_#t~nondet4_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 5#L21-2true [2020-07-01 11:52:38,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:38,206 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-07-01 11:52:38,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:38,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589177519] [2020-07-01 11:52:38,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:38,287 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:38,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:38,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1929, now seen corresponding path program 1 times [2020-07-01 11:52:38,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:38,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274456066] [2020-07-01 11:52:38,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:38,303 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:38,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:38,305 INFO L82 PathProgramCache]: Analyzing trace with hash 55745, now seen corresponding path program 1 times [2020-07-01 11:52:38,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:38,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235003407] [2020-07-01 11:52:38,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:38,320 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:38,379 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:38,380 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:38,380 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:38,380 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:38,380 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:52:38,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:38,381 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:38,381 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:38,381 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:52:38,381 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:38,381 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:38,401 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 11:52:38,412 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 11:52:38,418 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 11:52:38,427 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 11:52:38,431 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 11:52:38,445 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 11:52:38,580 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:38,581 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 11:52:38,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:38,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:38,599 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:52:38,599 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:52:38,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:38,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:38,638 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:52:38,638 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:52:38,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:38,671 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:52:38,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:52:38,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:38,744 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:52:38,746 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:38,746 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:38,747 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:38,747 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:38,747 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:52:38,747 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:52:38,747 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:38,747 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:38,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:52:38,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:38,748 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:38,750 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 11:52:38,755 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 11:52:38,761 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 11:52:38,768 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 11:52:38,772 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 11:52:38,779 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 11:52:38,849 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:38,855 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:52:38,860 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 11:52:38,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:38,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:38,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:38,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:38,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:52:38,870 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:52:38,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:52:38,910 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 11:52:38,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:38,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:38,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:38,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:38,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:52:38,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:52:38,922 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:52:38,954 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 11:52:38,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:38,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:52:38,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:38,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:38,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:38,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:52:38,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:52:38,961 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:52:38,967 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:52:38,967 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/sandbox/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 11:52:38,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:52:38,974 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:52:38,974 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:52:38,975 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:52:39,008 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:52:39,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:39,041 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:52:39,042 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:39,054 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:52:39,055 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:39,072 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 11:52:39,095 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:52:39,100 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:52:39,102 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:52:39,136 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 12 transitions. Complement of second has 4 states. [2020-07-01 11:52:39,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:52:39,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:52:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 11:52:39,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:52:39,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:39,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:52:39,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:39,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:52:39,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:39,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 12 transitions. [2020-07-01 11:52:39,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:52:39,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 11:52:39,155 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:52:39,155 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:52:39,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 12 transitions. [2020-07-01 11:52:39,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:52:39,156 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:52:39,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 12 transitions. [2020-07-01 11:52:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 11:52:39,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:52:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 11:52:39,186 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:52:39,186 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:52:39,186 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:52:39,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-07-01 11:52:39,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:52:39,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:52:39,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:52:39,188 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:52:39,188 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:52:39,188 INFO L794 eck$LassoCheckResult]: Stem: 47#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~d~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 48#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 43#L21 [25] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (= v_ULTIMATE.start_main_~d~0_9 (+ v_ULTIMATE.start_main_~d~0_10 (- 1))) (= v_ULTIMATE.start_main_~x~0_10 |v_ULTIMATE.start_main_#t~nondet5_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 44#L21-2 [2020-07-01 11:52:39,189 INFO L796 eck$LassoCheckResult]: Loop: 44#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 49#L21 [38] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~d~0_8 |v_ULTIMATE.start_main_#t~nondet4_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 44#L21-2 [2020-07-01 11:52:39,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:39,189 INFO L82 PathProgramCache]: Analyzing trace with hash 55732, now seen corresponding path program 1 times [2020-07-01 11:52:39,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:39,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279261413] [2020-07-01 11:52:39,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,205 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:39,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:39,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1929, now seen corresponding path program 2 times [2020-07-01 11:52:39,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:39,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009898435] [2020-07-01 11:52:39,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,215 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:39,216 INFO L82 PathProgramCache]: Analyzing trace with hash 53559420, now seen corresponding path program 1 times [2020-07-01 11:52:39,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:39,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041996829] [2020-07-01 11:52:39,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,235 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:39,262 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:39,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:39,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:39,263 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:39,263 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:52:39,263 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:39,263 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:39,263 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:39,263 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:52:39,263 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:39,263 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:39,266 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 11:52:39,274 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 11:52:39,282 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 11:52:39,287 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 11:52:39,296 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 11:52:39,301 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 11:52:39,385 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:39,385 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:39,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:39,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:39,395 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:52:39,396 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:39,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:39,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:39,438 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:52:39,438 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:52:39,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:39,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:39,479 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:52:39,479 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:52:39,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:39,513 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:52:39,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:52:39,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:39,586 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:52:39,588 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:39,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:39,589 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:39,589 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:39,589 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:52:39,589 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:52:39,589 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:39,589 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:39,589 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:52:39,589 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:39,590 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:39,591 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 11:52:39,596 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 11:52:39,603 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 11:52:39,607 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 11:52:39,615 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 11:52:39,619 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 11:52:39,696 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:39,696 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:52:39,701 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 11:52:39,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:39,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:39,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:39,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:39,707 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:52:39,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:52:39,712 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:52:39,748 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 11:52:39,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:39,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:52:39,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:39,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:39,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:39,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:52:39,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:52:39,756 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:52:39,791 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 11:52:39,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:39,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:52:39,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:39,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:39,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:39,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:52:39,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:52:39,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:52:39,832 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 11:52:39,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:39,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:52:39,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:39,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:39,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:39,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:52:39,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:52:39,839 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:52:39,843 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:52:39,843 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/sandbox/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 11:52:39,848 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:52:39,848 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:52:39,848 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:52:39,849 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:52:39,878 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:52:39,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:39,903 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:52:39,903 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:39,910 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:52:39,910 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:39,921 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 11:52:39,936 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:52:39,936 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:52:39,937 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 11:52:39,956 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 9 states and 15 transitions. Complement of second has 4 states. [2020-07-01 11:52:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:52:39,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:52:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 11:52:39,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:52:39,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:39,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:52:39,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:39,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:52:39,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:39,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 15 transitions. [2020-07-01 11:52:39,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:52:39,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 15 transitions. [2020-07-01 11:52:39,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:52:39,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:52:39,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. [2020-07-01 11:52:39,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:52:39,963 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-07-01 11:52:39,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. [2020-07-01 11:52:39,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-07-01 11:52:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:52:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:52:39,965 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:52:39,965 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:52:39,965 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:52:39,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 11:52:39,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:52:39,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:52:39,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:52:39,966 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:52:39,966 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:52:39,966 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~d~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 96#L21-2 [2020-07-01 11:52:39,966 INFO L796 eck$LassoCheckResult]: Loop: 96#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 95#L21 [25] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (= v_ULTIMATE.start_main_~d~0_9 (+ v_ULTIMATE.start_main_~d~0_10 (- 1))) (= v_ULTIMATE.start_main_~x~0_10 |v_ULTIMATE.start_main_#t~nondet5_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 96#L21-2 [2020-07-01 11:52:39,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:39,967 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 2 times [2020-07-01 11:52:39,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:39,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992698678] [2020-07-01 11:52:39,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,973 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:39,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:39,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1916, now seen corresponding path program 1 times [2020-07-01 11:52:39,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:39,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368816674] [2020-07-01 11:52:39,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,983 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:39,983 INFO L82 PathProgramCache]: Analyzing trace with hash 55732, now seen corresponding path program 2 times [2020-07-01 11:52:39,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:39,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726026838] [2020-07-01 11:52:39,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:39,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:40,029 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:40,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:40,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:40,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:40,029 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:52:40,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:40,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:40,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:40,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:52:40,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:40,030 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:40,032 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 11:52:40,041 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 11:52:40,048 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 11:52:40,051 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 11:52:40,057 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 11:52:40,061 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 11:52:40,155 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:40,155 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:40,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:40,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:40,167 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:52:40,167 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:40,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:40,199 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:40,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:52:40,235 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:40,270 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:52:40,272 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:40,272 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:40,272 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:40,272 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:40,272 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:52:40,272 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:52:40,272 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:40,273 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:40,273 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:52:40,273 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:40,273 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:40,274 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 11:52:40,278 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 11:52:40,284 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 11:52:40,287 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 11:52:40,293 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 11:52:40,296 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 11:52:40,361 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:40,361 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:52:40,364 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 11:52:40,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:40,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:52:40,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:40,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:40,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:40,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:52:40,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:52:40,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:52:40,400 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 11:52:40,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:40,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:52:40,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:40,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:40,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:40,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:52:40,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:52:40,406 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:52:40,410 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:52:40,410 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/sandbox/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 11:52:40,414 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:52:40,414 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:52:40,414 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:52:40,414 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2020-07-01 11:52:40,444 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:52:40,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:40,459 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:52:40,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:40,464 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:52:40,464 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:40,473 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 11:52:40,483 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:52:40,483 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:52:40,483 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-07-01 11:52:40,503 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 19 transitions. Complement of second has 4 states. [2020-07-01 11:52:40,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:52:40,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:52:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:52:40,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:52:40,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:40,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:52:40,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:40,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:52:40,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:40,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 19 transitions. [2020-07-01 11:52:40,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:52:40,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 15 transitions. [2020-07-01 11:52:40,508 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:52:40,508 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:52:40,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. [2020-07-01 11:52:40,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:52:40,508 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-07-01 11:52:40,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. [2020-07-01 11:52:40,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-07-01 11:52:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 11:52:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 13 transitions. [2020-07-01 11:52:40,510 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 13 transitions. [2020-07-01 11:52:40,510 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 13 transitions. [2020-07-01 11:52:40,510 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:52:40,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 13 transitions. [2020-07-01 11:52:40,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:52:40,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:52:40,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:52:40,511 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-01 11:52:40,511 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:52:40,511 INFO L794 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~d~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 146#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 147#L21 [39] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~d~0_8 |v_ULTIMATE.start_main_#t~nondet4_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 148#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 141#L21 [2020-07-01 11:52:40,512 INFO L796 eck$LassoCheckResult]: Loop: 141#L21 [25] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (= v_ULTIMATE.start_main_~d~0_9 (+ v_ULTIMATE.start_main_~d~0_10 (- 1))) (= v_ULTIMATE.start_main_~x~0_10 |v_ULTIMATE.start_main_#t~nondet5_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 142#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 141#L21 [2020-07-01 11:52:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:40,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1728156, now seen corresponding path program 1 times [2020-07-01 11:52:40,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:40,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429904622] [2020-07-01 11:52:40,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:40,524 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:40,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:40,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1766, now seen corresponding path program 2 times [2020-07-01 11:52:40,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:40,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925130657] [2020-07-01 11:52:40,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:40,533 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:40,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:40,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1660758721, now seen corresponding path program 1 times [2020-07-01 11:52:40,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:40,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856776338] [2020-07-01 11:52:40,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:40,547 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:40,571 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:40,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:40,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:40,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:40,571 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:52:40,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:40,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:40,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:40,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:52:40,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:40,572 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:40,574 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 11:52:40,579 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 11:52:40,584 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 11:52:40,587 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 11:52:40,589 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 11:52:40,595 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 11:52:40,663 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:40,663 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:40,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:40,666 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:40,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:52:40,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:40,780 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:52:40,782 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:40,782 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:40,782 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:40,782 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:40,782 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:52:40,783 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:52:40,783 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:40,783 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:40,783 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:52:40,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:40,783 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:40,785 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 11:52:40,790 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 11:52:40,796 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 11:52:40,799 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 11:52:40,801 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 11:52:40,806 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 11:52:40,869 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:40,870 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:52:40,872 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 11:52:40,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:40,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:52:40,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:40,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:40,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:40,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:52:40,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:52:40,878 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:52:40,880 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:52:40,880 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/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 11:52:40,886 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:52:40,886 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:52:40,886 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:52:40,886 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2020-07-01 11:52:40,916 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:52:40,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:40,933 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:52:40,934 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:40,939 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:52:40,939 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:40,961 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 11:52:40,962 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:52:40,962 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:52:40,962 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 13 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 11:52:40,983 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 13 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 21 transitions. Complement of second has 4 states. [2020-07-01 11:52:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:52:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:52:40,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:52:40,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:52:40,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:40,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 11:52:40,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:40,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:52:40,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:40,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 21 transitions. [2020-07-01 11:52:40,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-07-01 11:52:40,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 18 transitions. [2020-07-01 11:52:40,987 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:52:40,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 11:52:40,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 18 transitions. [2020-07-01 11:52:40,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:52:40,988 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2020-07-01 11:52:40,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 18 transitions. [2020-07-01 11:52:40,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2020-07-01 11:52:40,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:52:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2020-07-01 11:52:40,989 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-07-01 11:52:40,989 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-07-01 11:52:40,989 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:52:40,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 11 transitions. [2020-07-01 11:52:40,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:52:40,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:52:40,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:52:40,990 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-01 11:52:40,990 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-07-01 11:52:40,991 INFO L794 eck$LassoCheckResult]: Stem: 204#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~d~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 205#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 202#L21 [39] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~d~0_8 |v_ULTIMATE.start_main_#t~nondet4_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 203#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 200#L21 [2020-07-01 11:52:40,991 INFO L796 eck$LassoCheckResult]: Loop: 200#L21 [25] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (= v_ULTIMATE.start_main_~d~0_9 (+ v_ULTIMATE.start_main_~d~0_10 (- 1))) (= v_ULTIMATE.start_main_~x~0_10 |v_ULTIMATE.start_main_#t~nondet5_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 201#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 202#L21 [38] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~d~0_8 |v_ULTIMATE.start_main_#t~nondet4_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 203#L21-2 [30] L21-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (< 0 v_ULTIMATE.start_main_~d~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[] 200#L21 [2020-07-01 11:52:40,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:40,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1728156, now seen corresponding path program 2 times [2020-07-01 11:52:40,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:40,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189588973] [2020-07-01 11:52:40,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:41,001 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:41,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1698334, now seen corresponding path program 1 times [2020-07-01 11:52:41,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:41,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315212645] [2020-07-01 11:52:41,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:41,012 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:41,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:41,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1738702023, now seen corresponding path program 1 times [2020-07-01 11:52:41,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:52:41,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7233071] [2020-07-01 11:52:41,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:52:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:52:41,029 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:52:41,093 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:41,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:41,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:41,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:41,094 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:52:41,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:41,094 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:41,094 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:41,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:52:41,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:41,094 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:41,096 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 11:52:41,102 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 11:52:41,109 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 11:52:41,114 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 11:52:41,118 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 11:52:41,121 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 11:52:41,181 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:41,182 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:41,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:52:41,185 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:52:41,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:52:41,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:52:41,307 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:52:41,309 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:52:41,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:52:41,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:52:41,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:52:41,309 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:52:41,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:52:41,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:52:41,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:52:41,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:52:41,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:52:41,310 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:52:41,311 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 11:52:41,317 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 11:52:41,323 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 11:52:41,325 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 11:52:41,330 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 11:52:41,333 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 11:52:41,398 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:52:41,398 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:52:41,401 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 11:52:41,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:52:41,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:52:41,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:52:41,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:52:41,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:52:41,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:52:41,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:52:41,407 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:52:41,409 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:52:41,409 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/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 11:52:41,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:52:41,413 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:52:41,413 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:52:41,413 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:52:41,442 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:52:41,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:52:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:41,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:52:41,461 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:41,467 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:52:41,467 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:52:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:52:41,514 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:52:41,515 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:52:41,516 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:52:41,517 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 11:52:41,517 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 11 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-07-01 11:52:41,550 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 11 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 21 states and 36 transitions. Complement of second has 8 states. [2020-07-01 11:52:41,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 11:52:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:52:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-07-01 11:52:41,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:52:41,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:41,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 11:52:41,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:41,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 8 letters. [2020-07-01 11:52:41,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:52:41,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 36 transitions. [2020-07-01 11:52:41,555 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:52:41,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-07-01 11:52:41,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:52:41,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:52:41,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:52:41,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:52:41,556 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:52:41,556 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:52:41,556 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:52:41,557 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 11:52:41,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:52:41,557 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:52:41,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:52:41,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:52:41 BasicIcfg [2020-07-01 11:52:41,563 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:52:41,565 INFO L168 Benchmark]: Toolchain (without parser) took 4214.53 ms. Allocated memory was 649.6 MB in the beginning and 756.5 MB in the end (delta: 107.0 MB). Free memory was 562.9 MB in the beginning and 482.3 MB in the end (delta: 80.5 MB). Peak memory consumption was 187.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:52:41,566 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:52:41,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.02 ms. Allocated memory was 649.6 MB in the beginning and 683.7 MB in the end (delta: 34.1 MB). Free memory was 562.9 MB in the beginning and 647.6 MB in the end (delta: -84.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:52:41,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.06 ms. Allocated memory is still 683.7 MB. Free memory was 647.6 MB in the beginning and 645.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:52:41,567 INFO L168 Benchmark]: Boogie Preprocessor took 18.96 ms. Allocated memory is still 683.7 MB. Free memory was 645.2 MB in the beginning and 644.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:52:41,568 INFO L168 Benchmark]: RCFGBuilder took 216.94 ms. Allocated memory is still 683.7 MB. Free memory was 644.2 MB in the beginning and 629.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:52:41,569 INFO L168 Benchmark]: BlockEncodingV2 took 74.83 ms. Allocated memory is still 683.7 MB. Free memory was 629.5 MB in the beginning and 623.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:52:41,569 INFO L168 Benchmark]: TraceAbstraction took 144.35 ms. Allocated memory is still 683.7 MB. Free memory was 623.0 MB in the beginning and 614.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:52:41,570 INFO L168 Benchmark]: BuchiAutomizer took 3436.72 ms. Allocated memory was 683.7 MB in the beginning and 756.5 MB in the end (delta: 72.9 MB). Free memory was 614.4 MB in the beginning and 482.3 MB in the end (delta: 132.1 MB). Peak memory consumption was 205.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:52:41,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 283.02 ms. Allocated memory was 649.6 MB in the beginning and 683.7 MB in the end (delta: 34.1 MB). Free memory was 562.9 MB in the beginning and 647.6 MB in the end (delta: -84.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.06 ms. Allocated memory is still 683.7 MB. Free memory was 647.6 MB in the beginning and 645.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.96 ms. Allocated memory is still 683.7 MB. Free memory was 645.2 MB in the beginning and 644.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 216.94 ms. Allocated memory is still 683.7 MB. Free memory was 644.2 MB in the beginning and 629.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 74.83 ms. Allocated memory is still 683.7 MB. Free memory was 629.5 MB in the beginning and 623.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.35 ms. Allocated memory is still 683.7 MB. Free memory was 623.0 MB in the beginning and 614.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3436.72 ms. Allocated memory was 683.7 MB in the beginning and 756.5 MB in the end (delta: 72.9 MB). Free memory was 614.4 MB in the beginning and 482.3 MB in the end (delta: 132.1 MB). Peak memory consumption was 205.0 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. - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 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 (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 17 SDtfs, 35 SDslu, 4 SDs, 0 SdLazy, 65 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax147 hnf100 lsp27 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf113 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:52:34.063 ----------------------------------------------- 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/sandbox/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/sandbox/tmp/BenchExec_run_MTrcRm/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:52:42.407 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check