NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 11:00:07,418 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 11:00:07,420 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 11:00:07,431 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 11:00:07,432 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 11:00:07,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 11:00:07,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 11:00:07,435 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 11:00:07,437 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 11:00:07,437 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 11:00:07,438 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 11:00:07,438 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 11:00:07,439 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 11:00:07,440 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 11:00:07,441 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 11:00:07,442 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 11:00:07,443 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 11:00:07,444 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 11:00:07,446 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 11:00:07,448 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 11:00:07,449 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 11:00:07,450 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 11:00:07,452 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 11:00:07,452 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 11:00:07,452 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 11:00:07,453 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 11:00:07,453 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 11:00:07,454 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 11:00:07,454 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 11:00:07,455 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 11:00:07,455 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 11:00:07,456 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 11:00:07,457 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 11:00:07,457 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 11:00:07,458 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 11:00:07,458 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 11:00:07,458 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 11:00:07,459 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 11:00:07,460 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 11:00:07,460 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 11:00:07,474 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 11:00:07,474 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 11:00:07,475 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 11:00:07,475 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 11:00:07,476 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 11:00:07,476 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:00:07,476 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 11:00:07,476 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 11:00:07,476 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 11:00:07,477 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 11:00:07,477 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 11:00:07,477 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 11:00:07,477 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 11:00:07,477 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 11:00:07,477 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:07,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 11:00:07,478 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 11:00:07,478 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 11:00:07,478 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 11:00:07,478 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 11:00:07,479 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 11:00:07,479 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 11:00:07,479 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 11:00:07,479 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 11:00:07,479 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:00:07,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 11:00:07,480 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 11:00:07,480 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 11:00:07,480 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 11:00:07,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 11:00:07,518 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 11:00:07,522 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 11:00:07,523 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 11:00:07,523 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 11:00:07,524 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:00:07,594 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/b918d5eda6ec4810a50b99366f651a69/FLAGa687712a9 [2020-06-22 11:00:07,935 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 11:00:07,936 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:00:07,942 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/b918d5eda6ec4810a50b99366f651a69/FLAGa687712a9 [2020-06-22 11:00:08,348 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/b918d5eda6ec4810a50b99366f651a69 [2020-06-22 11:00:08,359 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 11:00:08,360 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 11:00:08,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 11:00:08,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 11:00:08,365 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 11:00:08,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33278e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08, skipping insertion in model container [2020-06-22 11:00:08,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 11:00:08,396 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 11:00:08,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:00:08,552 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 11:00:08,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:00:08,636 INFO L195 MainTranslator]: Completed translation [2020-06-22 11:00:08,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08 WrapperNode [2020-06-22 11:00:08,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 11:00:08,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 11:00:08,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 11:00:08,638 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 11:00:08,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 11:00:08,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 11:00:08,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 11:00:08,671 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 11:00:08,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 11:00:08,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 11:00:08,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 11:00:08,690 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 11:00:08,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (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 [2020-06-22 11:00:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 11:00:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 11:00:08,881 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 11:00:08,882 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 11:00:08,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:00:08 BoogieIcfgContainer [2020-06-22 11:00:08,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 11:00:08,884 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 11:00:08,884 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 11:00:08,886 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 11:00:08,886 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:00:08" (1/1) ... [2020-06-22 11:00:08,902 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 11:00:08,903 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 11:00:08,904 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 11:00:08,905 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 11:00:08,905 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:00:08,907 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 11:00:08,908 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 11:00:08,908 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 11:00:08,922 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 11:00:08,936 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 11:00:08,940 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 11:00:08,942 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:00:08,952 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 11:00:08,954 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 11:00:08,955 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 11:00:08,955 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:00:08,955 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 11:00:08,956 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 11:00:08,956 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 11:00:08,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:00:08 BasicIcfg [2020-06-22 11:00:08,957 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 11:00:08,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 11:00:08,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 11:00:08,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 11:00:08,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 11:00:08" (1/4) ... [2020-06-22 11:00:08,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bcc775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:00:08, skipping insertion in model container [2020-06-22 11:00:08,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (2/4) ... [2020-06-22 11:00:08,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bcc775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:00:08, skipping insertion in model container [2020-06-22 11:00:08,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:00:08" (3/4) ... [2020-06-22 11:00:08,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bcc775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:00:08, skipping insertion in model container [2020-06-22 11:00:08,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:00:08" (4/4) ... [2020-06-22 11:00:08,964 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:00:08,974 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 11:00:08,981 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 11:00:08,999 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 11:00:09,027 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:00:09,028 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 11:00:09,028 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 11:00:09,028 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:00:09,028 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:00:09,028 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:00:09,028 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 11:00:09,029 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:00:09,029 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 11:00:09,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 11:00:09,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 11:00:09,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 11:00:09,100 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 13 25) the Hoare annotation is: true [2020-06-22 11:00:09,100 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 24) no Hoare annotation was computed. [2020-06-22 11:00:09,100 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 11:00:09,100 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-06-22 11:00:09,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:00:09 BasicIcfg [2020-06-22 11:00:09,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 11:00:09,109 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 11:00:09,109 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 11:00:09,113 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 11:00:09,113 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:00:09,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 11:00:08" (1/5) ... [2020-06-22 11:00:09,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b49723a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:00:09, skipping insertion in model container [2020-06-22 11:00:09,114 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:00:09,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:00:08" (2/5) ... [2020-06-22 11:00:09,115 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b49723a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:00:09, skipping insertion in model container [2020-06-22 11:00:09,115 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:00:09,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:00:08" (3/5) ... [2020-06-22 11:00:09,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b49723a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:00:09, skipping insertion in model container [2020-06-22 11:00:09,116 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:00:09,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:00:08" (4/5) ... [2020-06-22 11:00:09,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b49723a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:00:09, skipping insertion in model container [2020-06-22 11:00:09,116 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:00:09,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:00:09" (5/5) ... [2020-06-22 11:00:09,118 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:00:09,146 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:00:09,146 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 11:00:09,146 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 11:00:09,146 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:00:09,147 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:00:09,147 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:00:09,147 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 11:00:09,147 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:00:09,147 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 11:00:09,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 11:00:09,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:00:09,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:00:09,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:00:09,176 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:00:09,177 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:00:09,177 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 11:00:09,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 11:00:09,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 11:00:09,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:00:09,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:00:09,178 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:00:09,178 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 11:00:09,183 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 4#L19-2true [2020-06-22 11:00:09,184 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 6#L14true [38] L14-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_12 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~t~0_6) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~j~0_12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 4#L19-2true [2020-06-22 11:00:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:09,191 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2020-06-22 11:00:09,193 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:09,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:09,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:09,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:09,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:09,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:09,265 INFO L82 PathProgramCache]: Analyzing trace with hash 2053, now seen corresponding path program 1 times [2020-06-22 11:00:09,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:09,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:09,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:09,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:09,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:09,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:09,283 INFO L82 PathProgramCache]: Analyzing trace with hash 58752, now seen corresponding path program 1 times [2020-06-22 11:00:09,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:09,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:09,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:09,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:09,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:09,367 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:00:09,369 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:00:09,388 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:00:09,388 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:00:09,389 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:00:09,389 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:09,389 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:00:09,389 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:00:09,389 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:00:09,389 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:00:09,390 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:00:09,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:09,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:09,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:09,543 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:00:09,543 INFO L412 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 [2020-06-22 11:00:09,549 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:09,549 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:09,582 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:09,582 INFO L448 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 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 [2020-06-22 11:00:09,592 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:09,592 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:09,620 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:09,620 INFO L448 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 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 [2020-06-22 11:00:09,626 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:09,626 INFO L163 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 [2020-06-22 11:00:09,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:00:09,662 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:10,153 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:00:10,156 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:00:10,156 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:00:10,156 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:00:10,157 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:00:10,157 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:00:10,157 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:00:10,157 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:00:10,157 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:00:10,157 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:00:10,157 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:00:10,158 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:00:10,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:10,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:10,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:10,248 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:00:10,254 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:00:10,255 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:00:10,257 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:00:10,257 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:00:10,257 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:00:10,258 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:00:10,262 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:00:10,262 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:00:10,270 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:00:10,271 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:00:10,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:00:10,271 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:00:10,272 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:00:10,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:00:10,274 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:00:10,274 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:00:10,282 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:00:10,283 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:00:10,283 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:00:10,283 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:00:10,284 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:00:10,284 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:00:10,284 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:00:10,286 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:00:10,286 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:00:10,302 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:00:10,313 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 11:00:10,313 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:00:10,315 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:00:10,315 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:00:10,315 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:00:10,316 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-06-22 11:00:10,317 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:00:10,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:10,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:00:10,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:00:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:10,360 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 11:00:10,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:00:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:00:10,396 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 11:00:10,401 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 [2020-06-22 11:00:10,402 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-06-22 11:00:10,465 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 19 states and 29 transitions. Complement of second has 9 states. [2020-06-22 11:00:10,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 11:00:10,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:00:10,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2020-06-22 11:00:10,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 11:00:10,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:10,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 11:00:10,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:10,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 11:00:10,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:10,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 29 transitions. [2020-06-22 11:00:10,479 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-06-22 11:00:10,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 24 transitions. [2020-06-22 11:00:10,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-06-22 11:00:10,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-06-22 11:00:10,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2020-06-22 11:00:10,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:00:10,486 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2020-06-22 11:00:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2020-06-22 11:00:10,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2020-06-22 11:00:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-06-22 11:00:10,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2020-06-22 11:00:10,515 INFO L729 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2020-06-22 11:00:10,515 INFO L609 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2020-06-22 11:00:10,515 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 11:00:10,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2020-06-22 11:00:10,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 11:00:10,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:00:10,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:00:10,517 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:00:10,517 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 11:00:10,517 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 68#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 70#L14 [2020-06-22 11:00:10,518 INFO L796 eck$LassoCheckResult]: Loop: 70#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 76#L19 [42] L19-->L19-2: Formula: (and (>= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 (- 1)))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 69#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 70#L14 [2020-06-22 11:00:10,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:10,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 1 times [2020-06-22 11:00:10,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:10,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:10,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:10,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:10,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:10,527 INFO L82 PathProgramCache]: Analyzing trace with hash 70528, now seen corresponding path program 1 times [2020-06-22 11:00:10,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:10,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:10,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:10,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:10,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:10,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:10,535 INFO L82 PathProgramCache]: Analyzing trace with hash 56464891, now seen corresponding path program 1 times [2020-06-22 11:00:10,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:10,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:10,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:10,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:10,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:10,595 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:00:10,596 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:00:10,596 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:00:10,596 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:00:10,596 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:00:10,596 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:10,596 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:00:10,596 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:00:10,596 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:00:10,597 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:00:10,597 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:00:10,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:10,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:10,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:10,692 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:00:10,692 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:10,701 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:10,702 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:10,733 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:10,733 INFO L448 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 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:10,744 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:10,744 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:10,772 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:10,772 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:10,785 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:10,786 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:10,822 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:00:10,823 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:10,935 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:00:10,939 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:00:10,939 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:00:10,940 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:00:10,940 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:00:10,940 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:00:10,940 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:00:10,940 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:00:10,940 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:00:10,940 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:00:10,940 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:00:10,940 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:00:10,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:10,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:10,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:11,025 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:00:11,026 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:00:11,026 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:00:11,027 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:00:11,027 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:00:11,028 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:00:11,028 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:00:11,030 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:00:11,030 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:00:11,034 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:00:11,035 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:00:11,035 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:00:11,036 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:00:11,036 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:00:11,036 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:00:11,038 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:00:11,038 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:00:11,044 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:00:11,044 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:00:11,045 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:00:11,045 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:00:11,045 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:00:11,046 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:00:11,046 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:00:11,046 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:00:11,047 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:00:11,052 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:00:11,059 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:00:11,059 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 11:00:11,059 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:00:11,059 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:00:11,060 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:00:11,060 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 11:00:11,060 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:00:11,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:11,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:00:11,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:00:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:11,088 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:00:11,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:00:11,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:00:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:11,114 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:00:11,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:00:11,145 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 11:00:11,145 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 [2020-06-22 11:00:11,146 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-06-22 11:00:11,208 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 55 states and 82 transitions. Complement of second has 20 states. [2020-06-22 11:00:11,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 11:00:11,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 11:00:11,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-06-22 11:00:11,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 11:00:11,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:11,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 11:00:11,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:11,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 11:00:11,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:11,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 82 transitions. [2020-06-22 11:00:11,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2020-06-22 11:00:11,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 38 states and 56 transitions. [2020-06-22 11:00:11,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-06-22 11:00:11,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-06-22 11:00:11,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 56 transitions. [2020-06-22 11:00:11,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:00:11,219 INFO L706 BuchiCegarLoop]: Abstraction has 38 states and 56 transitions. [2020-06-22 11:00:11,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 56 transitions. [2020-06-22 11:00:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 22. [2020-06-22 11:00:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-06-22 11:00:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 34 transitions. [2020-06-22 11:00:11,222 INFO L729 BuchiCegarLoop]: Abstraction has 22 states and 34 transitions. [2020-06-22 11:00:11,223 INFO L609 BuchiCegarLoop]: Abstraction has 22 states and 34 transitions. [2020-06-22 11:00:11,223 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 11:00:11,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 34 transitions. [2020-06-22 11:00:11,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-06-22 11:00:11,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:00:11,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:00:11,224 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 11:00:11,224 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 11:00:11,225 INFO L794 eck$LassoCheckResult]: Stem: 198#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 199#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 200#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 205#L19 [2020-06-22 11:00:11,225 INFO L796 eck$LassoCheckResult]: Loop: 205#L19 [35] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~i~0_6) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 206#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 210#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 205#L19 [2020-06-22 11:00:11,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:11,225 INFO L82 PathProgramCache]: Analyzing trace with hash 58755, now seen corresponding path program 1 times [2020-06-22 11:00:11,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:11,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:11,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:11,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:11,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:11,234 INFO L82 PathProgramCache]: Analyzing trace with hash 64521, now seen corresponding path program 1 times [2020-06-22 11:00:11,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:11,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:11,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:11,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:11,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:11,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1750404935, now seen corresponding path program 1 times [2020-06-22 11:00:11,240 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:11,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:11,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:11,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:11,271 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:00:11,272 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:00:11,272 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:00:11,272 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:00:11,272 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:00:11,273 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:11,273 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:00:11,273 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:00:11,273 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 11:00:11,273 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:00:11,273 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:00:11,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:11,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:11,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:11,328 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:00:11,329 INFO L412 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 [2020-06-22 11:00:11,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:11,335 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:11,362 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:11,362 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} 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 [2020-06-22 11:00:11,367 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:11,368 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:11,394 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:11,394 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} 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 [2020-06-22 11:00:11,399 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:11,399 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2020-06-22 11:00:11,432 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:00:11,432 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:11,681 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:00:11,684 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:00:11,684 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:00:11,684 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:00:11,684 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:00:11,684 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:00:11,684 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:00:11,685 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:00:11,685 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:00:11,685 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 11:00:11,685 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:00:11,685 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:00:11,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:11,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:11,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:11,743 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:00:11,743 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:00:11,744 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:00:11,744 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:00:11,744 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:00:11,745 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:00:11,745 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:00:11,746 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:00:11,746 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:00:11,751 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:00:11,751 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 11:00:11,752 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:00:11,752 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:00:11,752 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:00:11,752 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:00:11,753 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:00:11,753 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:00:11,753 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:00:11,757 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:00:11,762 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:00:11,762 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:00:11,763 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:00:11,763 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:00:11,763 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:00:11,763 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-06-22 11:00:11,764 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:00:11,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:11,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:00:11,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:00:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:11,797 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:00:11,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:00:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:00:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:11,829 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:00:11,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:00:11,831 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 11:00:11,831 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 [2020-06-22 11:00:11,831 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 22 states and 34 transitions. cyclomatic complexity: 15 Second operand 3 states. [2020-06-22 11:00:11,916 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 22 states and 34 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 66 states and 101 transitions. Complement of second has 14 states. [2020-06-22 11:00:11,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-22 11:00:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 11:00:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-06-22 11:00:11,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2020-06-22 11:00:11,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:11,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2020-06-22 11:00:11,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:11,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2020-06-22 11:00:11,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:00:11,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 101 transitions. [2020-06-22 11:00:11,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-06-22 11:00:11,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 22 states and 31 transitions. [2020-06-22 11:00:11,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 11:00:11,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 11:00:11,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2020-06-22 11:00:11,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:00:11,925 INFO L706 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2020-06-22 11:00:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2020-06-22 11:00:11,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-06-22 11:00:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-06-22 11:00:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2020-06-22 11:00:11,928 INFO L729 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-06-22 11:00:11,928 INFO L609 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-06-22 11:00:11,928 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 11:00:11,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2020-06-22 11:00:11,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-06-22 11:00:11,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:00:11,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:00:11,929 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 11:00:11,930 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1] [2020-06-22 11:00:11,930 INFO L794 eck$LassoCheckResult]: Stem: 347#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 348#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 357#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 354#L19 [2020-06-22 11:00:11,930 INFO L796 eck$LassoCheckResult]: Loop: 354#L19 [35] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~i~0_6) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 349#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 350#L14 [38] L14-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_12 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~t~0_6) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~j~0_12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 356#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 359#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 354#L19 [2020-06-22 11:00:11,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:11,930 INFO L82 PathProgramCache]: Analyzing trace with hash 58755, now seen corresponding path program 2 times [2020-06-22 11:00:11,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:11,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:11,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:11,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:11,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:11,938 INFO L82 PathProgramCache]: Analyzing trace with hash 62002893, now seen corresponding path program 1 times [2020-06-22 11:00:11,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:11,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:11,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,939 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 11:00:11,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:00:11,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 11:00:11,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 11:00:11,975 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 11:00:11,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 11:00:11,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 11:00:11,980 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand 3 states. [2020-06-22 11:00:11,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 11:00:11,996 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2020-06-22 11:00:11,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 11:00:11,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 32 transitions. [2020-06-22 11:00:11,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-06-22 11:00:11,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 27 transitions. [2020-06-22 11:00:11,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 11:00:11,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 11:00:12,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2020-06-22 11:00:12,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:00:12,000 INFO L706 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2020-06-22 11:00:12,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2020-06-22 11:00:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2020-06-22 11:00:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-06-22 11:00:12,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-06-22 11:00:12,002 INFO L729 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-06-22 11:00:12,002 INFO L609 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-06-22 11:00:12,002 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 11:00:12,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-06-22 11:00:12,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 11:00:12,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:00:12,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:00:12,004 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2020-06-22 11:00:12,004 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1] [2020-06-22 11:00:12,004 INFO L794 eck$LassoCheckResult]: Stem: 397#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~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_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|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_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 398#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 409#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 403#L19 [35] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~i~0_6) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 401#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 402#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 405#L19 [42] L19-->L19-2: Formula: (and (>= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 (- 1)))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 407#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 406#L14 [2020-06-22 11:00:12,005 INFO L796 eck$LassoCheckResult]: Loop: 406#L14 [38] L14-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_12 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~t~0_6) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~j~0_12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 399#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 400#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 404#L19 [42] L19-->L19-2: Formula: (and (>= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 (- 1)))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 407#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 406#L14 [2020-06-22 11:00:12,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:12,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1488036161, now seen corresponding path program 1 times [2020-06-22 11:00:12,006 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:12,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:12,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:12,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:12,016 INFO L82 PathProgramCache]: Analyzing trace with hash 64776580, now seen corresponding path program 1 times [2020-06-22 11:00:12,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:12,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:12,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:12,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:00:12,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 11:00:12,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 11:00:12,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 11:00:12,041 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 11:00:12,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 11:00:12,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 11:00:12,041 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-06-22 11:00:12,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 11:00:12,054 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2020-06-22 11:00:12,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 11:00:12,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2020-06-22 11:00:12,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 11:00:12,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 24 transitions. [2020-06-22 11:00:12,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 11:00:12,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 11:00:12,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2020-06-22 11:00:12,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 11:00:12,058 INFO L706 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-06-22 11:00:12,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2020-06-22 11:00:12,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 11. [2020-06-22 11:00:12,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 11:00:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-06-22 11:00:12,059 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-06-22 11:00:12,059 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-06-22 11:00:12,059 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 11:00:12,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-06-22 11:00:12,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 11:00:12,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:00:12,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:00:12,061 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:00:12,061 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1, 1, 1] [2020-06-22 11:00:12,061 INFO L794 eck$LassoCheckResult]: Stem: 443#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 444#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 446#L14 [2020-06-22 11:00:12,061 INFO L796 eck$LassoCheckResult]: Loop: 446#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 449#L19 [35] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~i~0_6) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 447#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 448#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 450#L19 [42] L19-->L19-2: Formula: (and (>= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 (- 1)))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 453#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 452#L14 [38] L14-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_12 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~t~0_6) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~j~0_12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 445#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_10) (< 0 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 446#L14 [2020-06-22 11:00:12,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:12,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 2 times [2020-06-22 11:00:12,062 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:12,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:12,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:12,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:12,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:12,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1356276394, now seen corresponding path program 1 times [2020-06-22 11:00:12,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:12,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:12,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,069 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 11:00:12,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:12,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:00:12,077 INFO L82 PathProgramCache]: Analyzing trace with hash 221360059, now seen corresponding path program 1 times [2020-06-22 11:00:12,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:00:12,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:00:12,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:00:12,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:00:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:00:12,151 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:00:12,151 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:00:12,152 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:00:12,152 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:00:12,152 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:00:12,152 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:12,152 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:00:12,152 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:00:12,152 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Lasso [2020-06-22 11:00:12,152 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:00:12,152 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:00:12,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:12,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:12,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:12,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:12,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:12,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:00:12,255 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:00:12,255 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2020-06-22 11:00:12,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:12,258 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:12,261 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:12,262 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:12,294 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:12,295 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:12,298 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:12,298 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:12,333 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:12,333 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:12,362 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:12,362 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:12,368 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:12,368 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:12,371 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:12,371 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:12,399 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:12,400 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:00:12,433 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:00:12,433 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:12,608 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:12,608 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~j~0=0} Honda state: {ULTIMATE.start_main_~i~0=2, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~j~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=7, ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=1, ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=-7, ULTIMATE.start_main_~j~0=0}] Lambdas: [0, 7, 0] Nus: [0, 1] 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 [2020-06-22 11:00:12,635 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:00:12,635 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:00:12,661 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:00:12,662 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 11:00:12,671 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,672 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,673 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,673 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,674 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,674 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,674 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,675 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,675 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,676 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:00:12 BasicIcfg [2020-06-22 11:00:12,687 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 11:00:12,687 INFO L168 Benchmark]: Toolchain (without parser) took 4327.89 ms. Allocated memory was 649.6 MB in the beginning and 750.3 MB in the end (delta: 100.7 MB). Free memory was 565.3 MB in the beginning and 614.1 MB in the end (delta: -48.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 50.3 GB. [2020-06-22 11:00:12,689 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 11:00:12,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.47 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 565.3 MB in the beginning and 645.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-06-22 11:00:12,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.28 ms. Allocated memory is still 678.4 MB. Free memory was 643.7 MB in the beginning and 640.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 11:00:12,691 INFO L168 Benchmark]: Boogie Preprocessor took 18.59 ms. Allocated memory is still 678.4 MB. Free memory was 640.6 MB in the beginning and 639.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:00:12,691 INFO L168 Benchmark]: RCFGBuilder took 193.60 ms. Allocated memory is still 678.4 MB. Free memory was 639.3 MB in the beginning and 626.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 50.3 GB. [2020-06-22 11:00:12,692 INFO L168 Benchmark]: BlockEncodingV2 took 73.03 ms. Allocated memory is still 678.4 MB. Free memory was 626.1 MB in the beginning and 622.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-06-22 11:00:12,692 INFO L168 Benchmark]: TraceAbstraction took 151.00 ms. Allocated memory is still 678.4 MB. Free memory was 620.7 MB in the beginning and 612.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 11:00:12,693 INFO L168 Benchmark]: BuchiAutomizer took 3577.97 ms. Allocated memory was 678.4 MB in the beginning and 750.3 MB in the end (delta: 71.8 MB). Free memory was 612.6 MB in the beginning and 614.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 70.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:00:12,698 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 275.47 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 565.3 MB in the beginning and 645.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.28 ms. Allocated memory is still 678.4 MB. Free memory was 643.7 MB in the beginning and 640.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.59 ms. Allocated memory is still 678.4 MB. Free memory was 640.6 MB in the beginning and 639.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 193.60 ms. Allocated memory is still 678.4 MB. Free memory was 639.3 MB in the beginning and 626.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 73.03 ms. Allocated memory is still 678.4 MB. Free memory was 626.1 MB in the beginning and 622.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.00 ms. Allocated memory is still 678.4 MB. Free memory was 620.7 MB in the beginning and 612.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3577.97 ms. Allocated memory was 678.4 MB in the beginning and 750.3 MB in the end (delta: 71.8 MB). Free memory was 612.6 MB in the beginning and 614.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 70.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 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 (2 trivial, 0 deterministic, 3 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function j and consists of 6 locations. One nondeterministic module has affine ranking function i and consists of 5 locations. One nondeterministic module has affine ranking function i + -1 * j and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 37 SDslu, 0 SDs, 0 SdLazy, 87 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax178 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf92 smp100 dnf100 smp100 tf109 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2020-06-22 11:00:12,708 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,709 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,709 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,709 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,710 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,710 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,710 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,711 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,711 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,711 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,712 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,712 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,713 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,713 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,713 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,713 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,714 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,714 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 11:00:12,714 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 11:00:12,715 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, |ULTIMATE.start_main_#t~nondet1|=0, ULTIMATE.start_main_~j~0=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, |ULTIMATE.start_main_#res|=0, ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=0} {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6003722b=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191c9021=0, ~unnamed0~0~false=0, i=2, j=1} {t=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6003722b=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191c9021=0, ~unnamed0~0~false=0, i=2, j=1} {t=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6003722b=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191c9021=0, ~unnamed0~0~false=0, i=2, j=1} {t=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6003722b=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191c9021=0, ~unnamed0~0~false=0, i=2, j=1} {t=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6003722b=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191c9021=0, ~unnamed0~0~false=0, i=2, j=1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [0, 7, 0] Mus: [0, 1] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 [L13] COND TRUE i > 0 && j > 0 Loop: [L14] COND FALSE !(i < j) [L19] COND TRUE i > j [L20] j = i [L13] COND TRUE i > 0 && j > 0 [L14] COND FALSE !(i < j) [L19] COND FALSE !(i > j) [L22] i = i-1 [L13] COND TRUE i > 0 && j > 0 [L14] COND TRUE i < j [L15] t = i [L16] i = j [L17] j = t [L13] COND TRUE i > 0 && j > 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 11:00:05.095 ----------------------------------------------- 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 -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 11:00:12.941 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check