YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:49:09,368 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:49:09,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:49:09,381 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:49:09,381 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:49:09,382 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:49:09,384 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:49:09,385 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:49:09,386 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:49:09,387 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:49:09,388 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:49:09,388 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:49:09,389 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:49:09,390 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:49:09,391 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:49:09,392 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:49:09,393 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:49:09,394 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:49:09,396 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:49:09,398 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:49:09,399 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:49:09,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:49:09,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:49:09,402 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:49:09,402 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:49:09,403 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:49:09,403 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:49:09,404 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:49:09,404 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:49:09,405 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:49:09,406 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:49:09,406 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:49:09,407 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:49:09,407 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:49:09,408 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:49:09,408 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:49:09,408 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:49:09,409 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:49:09,410 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:49:09,410 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 05:49:09,424 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:49:09,425 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:49:09,426 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:49:09,426 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:49:09,426 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:49:09,426 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:49:09,426 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:49:09,427 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:49:09,427 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:49:09,427 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:49:09,427 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:49:09,427 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:49:09,427 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:49:09,428 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:49:09,428 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:49:09,428 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:49:09,428 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:49:09,428 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:49:09,429 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:49:09,429 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:49:09,429 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:49:09,429 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:49:09,429 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:49:09,429 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:49:09,430 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:49:09,430 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:49:09,430 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:49:09,430 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:49:09,430 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:49:09,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:49:09,468 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:49:09,471 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:49:09,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:49:09,473 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:49:09,474 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:49:09,541 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/ecb63775ccee4dd9a7ac978ae4c55a1b/FLAGdee4e3222 [2020-06-22 05:49:09,869 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:49:09,869 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:49:09,876 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/ecb63775ccee4dd9a7ac978ae4c55a1b/FLAGdee4e3222 [2020-06-22 05:49:10,288 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/ecb63775ccee4dd9a7ac978ae4c55a1b [2020-06-22 05:49:10,299 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:49:10,301 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:49:10,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:49:10,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:49:10,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:49:10,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0ac6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10, skipping insertion in model container [2020-06-22 05:49:10,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:49:10,336 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:49:10,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:49:10,497 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:49:10,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:49:10,590 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:49:10,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10 WrapperNode [2020-06-22 05:49:10,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:49:10,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:49:10,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:49:10,591 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:49:10,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:49:10,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:49:10,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:49:10,625 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:49:10,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:49:10,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:49:10,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:49:10,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:49:10,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (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 05:49:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:49:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:49:10,841 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:49:10,843 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 05:49:10,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:49:10 BoogieIcfgContainer [2020-06-22 05:49:10,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:49:10,845 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:49:10,845 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:49:10,847 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:49:10,848 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:49:10" (1/1) ... [2020-06-22 05:49:10,862 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 05:49:10,863 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:49:10,864 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:49:10,865 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:49:10,865 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:49:10,867 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:49:10,867 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:49:10,868 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:49:10,882 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:49:10,897 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 05:49:10,901 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 05:49:10,903 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:49:10,916 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 05:49:10,918 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 05:49:10,919 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:49:10,919 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:49:10,919 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:49:10,920 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:49:10,920 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2020-06-22 05:49:10,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:49:10 BasicIcfg [2020-06-22 05:49:10,920 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:49:10,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:49:10,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:49:10,925 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:49:10,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:49:10" (1/4) ... [2020-06-22 05:49:10,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db19045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:49:10, skipping insertion in model container [2020-06-22 05:49:10,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (2/4) ... [2020-06-22 05:49:10,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db19045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:49:10, skipping insertion in model container [2020-06-22 05:49:10,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:49:10" (3/4) ... [2020-06-22 05:49:10,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db19045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:49:10, skipping insertion in model container [2020-06-22 05:49:10,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:49:10" (4/4) ... [2020-06-22 05:49:10,928 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:49:10,938 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:49:10,946 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:49:10,963 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:49:10,991 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:49:10,992 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:49:10,992 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:49:10,993 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:49:10,993 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:49:10,993 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:49:10,993 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:49:10,993 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:49:10,993 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:49:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 05:49:11,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:49:11,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 05:49:11,066 INFO L448 ceAbstractionStarter]: For program point L20-3(lines 20 22) no Hoare annotation was computed. [2020-06-22 05:49:11,067 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 17 25) the Hoare annotation is: true [2020-06-22 05:49:11,067 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:49:11,067 INFO L451 ceAbstractionStarter]: At program point L20-2(lines 20 22) the Hoare annotation is: true [2020-06-22 05:49:11,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:49:11 BasicIcfg [2020-06-22 05:49:11,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:49:11,076 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:49:11,076 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:49:11,079 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:49:11,080 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:49:11,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:49:10" (1/5) ... [2020-06-22 05:49:11,081 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d264ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:49:11, skipping insertion in model container [2020-06-22 05:49:11,081 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:49:11,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:49:10" (2/5) ... [2020-06-22 05:49:11,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d264ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:49:11, skipping insertion in model container [2020-06-22 05:49:11,082 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:49:11,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:49:10" (3/5) ... [2020-06-22 05:49:11,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d264ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:49:11, skipping insertion in model container [2020-06-22 05:49:11,083 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:49:11,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:49:10" (4/5) ... [2020-06-22 05:49:11,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d264ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:49:11, skipping insertion in model container [2020-06-22 05:49:11,083 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:49:11,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:49:11" (5/5) ... [2020-06-22 05:49:11,085 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:49:11,113 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:49:11,113 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:49:11,113 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:49:11,114 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:49:11,114 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:49:11,114 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:49:11,114 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:49:11,114 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:49:11,115 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:49:11,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 05:49:11,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:49:11,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:49:11,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:49:11,141 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:49:11,142 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:49:11,142 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:49:11,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 05:49:11,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:49:11,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:49:11,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:49:11,143 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:49:11,143 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:49:11,148 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [35] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-06-22 05:49:11,149 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [33] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_12) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~x~0_12 (- 1))) (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~y~0_12))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 6#L20-2true [45] L20-2-->L20-3: Formula: (> v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 5#L20-3true [36] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 (* (- 1) v_ULTIMATE.start_main_~x~0_8))) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-06-22 05:49:11,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:11,155 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-06-22 05:49:11,157 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:11,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:11,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:11,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:49:11,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:11,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:11,228 INFO L82 PathProgramCache]: Analyzing trace with hash 62935, now seen corresponding path program 1 times [2020-06-22 05:49:11,229 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:11,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:11,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:11,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:49:11,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:11,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1999350, now seen corresponding path program 1 times [2020-06-22 05:49:11,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:11,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:11,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:11,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:49:11,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:11,336 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:49:11,337 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:49:11,337 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:49:11,337 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:49:11,338 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:49:11,338 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:49:11,338 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:49:11,338 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:49:11,338 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:49:11,339 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:49:11,339 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:49:11,358 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 05:49:11,368 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 05:49:11,373 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 05:49:11,376 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 05:49:11,474 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:49:11,475 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 05:49:11,483 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:11,483 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:11,517 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:49:11,517 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 05:49:11,523 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:11,523 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:11,551 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:49:11,551 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 05:49:11,555 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:11,556 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:11,559 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:49:11,559 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 05:49:11,586 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:11,587 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 05:49:11,618 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:49:11,618 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:11,653 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:49:11,655 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:49:11,655 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:49:11,655 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:49:11,655 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:49:11,656 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:49:11,656 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:49:11,656 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:49:11,656 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:49:11,656 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:49:11,656 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:49:11,656 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:49:11,658 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 05:49:11,662 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 05:49:11,667 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 05:49:11,670 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 05:49:11,751 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:49:11,757 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:49:11,759 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 05:49:11,760 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:11,760 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:11,761 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:11,761 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:11,765 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:49:11,765 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:49:11,774 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:49:11,774 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 05:49:11,775 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:11,775 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:11,775 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:11,775 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:11,778 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:49:11,778 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:49:11,786 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:49:11,786 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 05:49:11,787 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:11,787 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:49:11,788 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:11,788 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:11,788 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:11,789 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:49:11,789 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:49:11,790 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:49:11,791 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 05:49:11,791 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:11,791 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:49:11,792 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:11,792 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:11,792 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:11,793 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:49:11,793 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:49:11,805 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:49:11,811 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:49:11,812 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:49:11,814 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:49:11,814 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:49:11,814 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:49:11,815 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 05:49:11,816 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:49:11,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:49:11,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:49:11,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:49:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:49:11,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:49:11,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:49:11,907 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 05:49:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:49:11,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:49:11,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:49:11,989 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-06-22 05:49:11,994 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 5 loop predicates [2020-06-22 05:49:11,995 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-06-22 05:49:12,068 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 11 states and 26 transitions. Complement of second has 6 states. [2020-06-22 05:49:12,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 05:49:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:49:12,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-06-22 05:49:12,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 05:49:12,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:12,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 05:49:12,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:12,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 05:49:12,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:12,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 26 transitions. [2020-06-22 05:49:12,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:49:12,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 8 states and 18 transitions. [2020-06-22 05:49:12,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 05:49:12,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 05:49:12,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 18 transitions. [2020-06-22 05:49:12,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:49:12,091 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 18 transitions. [2020-06-22 05:49:12,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 18 transitions. [2020-06-22 05:49:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-06-22 05:49:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 05:49:12,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2020-06-22 05:49:12,121 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 16 transitions. [2020-06-22 05:49:12,121 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 16 transitions. [2020-06-22 05:49:12,121 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:49:12,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 16 transitions. [2020-06-22 05:49:12,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:49:12,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:49:12,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:49:12,123 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 05:49:12,123 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 05:49:12,124 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} 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_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 64#L17-2 [33] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_12) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~x~0_12 (- 1))) (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~y~0_12))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 65#L20-2 [47] L20-2-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (<= v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_8) (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 69#L20-2 [2020-06-22 05:49:12,124 INFO L796 eck$LassoCheckResult]: Loop: 69#L20-2 [48] L20-2-->L20-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (<= v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 69#L20-2 [2020-06-22 05:49:12,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:12,124 INFO L82 PathProgramCache]: Analyzing trace with hash 64496, now seen corresponding path program 1 times [2020-06-22 05:49:12,124 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:12,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:12,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:49:12,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:12,136 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-06-22 05:49:12,136 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:12,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:12,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:49:12,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:12,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1999424, now seen corresponding path program 1 times [2020-06-22 05:49:12,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:12,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:12,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:49:12,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,174 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:49:12,174 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:49:12,174 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:49:12,174 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:49:12,175 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:49:12,175 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:49:12,175 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:49:12,175 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:49:12,175 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:49:12,176 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:49:12,176 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:49:12,177 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 05:49:12,191 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 05:49:12,194 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 05:49:12,197 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 05:49:12,251 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:49:12,251 INFO L412 LassoAnalysis]: Checking for nontermination... 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 05:49:12,255 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:12,255 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:12,284 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:49:12,284 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 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 05:49:12,290 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:12,290 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:12,317 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:49:12,318 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 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 05:49:12,330 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:12,330 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:12,358 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:49:12,358 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 05:49:12,364 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:12,364 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 05:49:12,396 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:49:12,397 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:12,643 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:49:12,646 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:49:12,646 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:49:12,646 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:49:12,646 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:49:12,646 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:49:12,646 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:49:12,647 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:49:12,647 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:49:12,647 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:49:12,647 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:49:12,647 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:49:12,649 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 05:49:12,653 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 05:49:12,656 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 05:49:12,660 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 05:49:12,707 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:49:12,708 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:49:12,708 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 05:49:12,709 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:12,709 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:12,709 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:12,709 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:12,711 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:49:12,711 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:49:12,716 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:49:12,717 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 05:49:12,717 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:12,717 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:49:12,717 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:12,718 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:12,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:12,718 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:49:12,718 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:49:12,721 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:49:12,721 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 05:49:12,722 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:12,722 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:12,722 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:12,722 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:12,724 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:49:12,724 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:49:12,729 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:49:12,729 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 05:49:12,730 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:12,730 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:49:12,730 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:12,730 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:12,730 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:12,731 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:49:12,731 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:49:12,734 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:49:12,738 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:49:12,738 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:49:12,738 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:49:12,739 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:49:12,739 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:49:12,739 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 05:49:12,739 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:49:12,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:49:12,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:49:12,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:49:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:49:12,773 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:49:12,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:49:12,773 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 05:49:12,774 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 05:49:12,774 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 05:49:12,774 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 16 transitions. cyclomatic complexity: 11 Second operand 2 states. [2020-06-22 05:49:12,794 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 16 transitions. cyclomatic complexity: 11. Second operand 2 states. Result 12 states and 27 transitions. Complement of second has 4 states. [2020-06-22 05:49:12,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 05:49:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 05:49:12,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-06-22 05:49:12,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 05:49:12,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:12,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2020-06-22 05:49:12,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:12,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 05:49:12,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:12,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 27 transitions. [2020-06-22 05:49:12,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:49:12,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 9 states and 19 transitions. [2020-06-22 05:49:12,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 05:49:12,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-06-22 05:49:12,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 19 transitions. [2020-06-22 05:49:12,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:49:12,801 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 19 transitions. [2020-06-22 05:49:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 19 transitions. [2020-06-22 05:49:12,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2020-06-22 05:49:12,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 05:49:12,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 14 transitions. [2020-06-22 05:49:12,803 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 14 transitions. [2020-06-22 05:49:12,803 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 14 transitions. [2020-06-22 05:49:12,803 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:49:12,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 14 transitions. [2020-06-22 05:49:12,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:49:12,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:49:12,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:49:12,804 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 05:49:12,804 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 05:49:12,804 INFO L794 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} 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_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 114#L17-2 [33] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_12) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~x~0_12 (- 1))) (= v_ULTIMATE.start_main_~y~0_11 (+ v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~y~0_12))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 115#L20-2 [48] L20-2-->L20-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (<= v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 119#L20-2 [2020-06-22 05:49:12,804 INFO L796 eck$LassoCheckResult]: Loop: 119#L20-2 [48] L20-2-->L20-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (<= v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 119#L20-2 [2020-06-22 05:49:12,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:12,805 INFO L82 PathProgramCache]: Analyzing trace with hash 64497, now seen corresponding path program 1 times [2020-06-22 05:49:12,805 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:12,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:12,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:49:12,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:12,814 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 2 times [2020-06-22 05:49:12,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:12,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:12,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:49:12,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:12,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1999455, now seen corresponding path program 2 times [2020-06-22 05:49:12,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:49:12,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:49:12,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,823 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:49:12,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:49:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:49:12,843 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:49:12,843 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:49:12,843 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:49:12,843 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:49:12,843 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:49:12,844 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:49:12,844 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:49:12,844 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:49:12,844 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 05:49:12,844 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:49:12,844 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:49:12,846 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 05:49:12,848 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 05:49:12,851 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 05:49:12,856 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 05:49:12,900 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:49:12,900 INFO L412 LassoAnalysis]: Checking for nontermination... 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 05:49:12,910 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:12,910 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:12,938 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:49:12,939 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:49:12,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:12,944 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:12,971 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:49:12,971 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 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 05:49:12,978 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:49:12,979 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 05:49:13,009 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:49:13,009 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:49:13,237 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:49:13,239 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:49:13,240 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:49:13,240 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:49:13,240 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:49:13,240 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:49:13,240 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:49:13,240 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:49:13,240 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:49:13,240 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 05:49:13,241 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:49:13,241 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:49:13,242 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 05:49:13,245 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 05:49:13,248 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 05:49:13,256 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 05:49:13,304 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:49:13,304 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:49:13,304 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 05:49:13,305 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:13,305 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:49:13,305 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:13,305 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:13,306 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:13,306 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:49:13,306 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:49:13,309 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:49:13,309 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 05:49:13,309 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:13,310 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:13,310 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:13,310 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:13,311 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:49:13,311 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:49:13,315 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:49:13,316 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 05:49:13,317 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:49:13,317 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:49:13,317 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:49:13,317 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:49:13,317 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:49:13,318 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:49:13,318 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:49:13,322 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:49:13,325 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:49:13,325 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:49:13,326 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:49:13,326 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:49:13,326 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:49:13,326 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~y~0 - 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 05:49:13,327 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:49:13,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:49:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:49:13,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:49:13,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:49:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:49:13,350 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:49:13,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:49:13,351 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 05:49:13,352 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 05:49:13,352 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 05:49:13,352 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 14 transitions. cyclomatic complexity: 9 Second operand 2 states. [2020-06-22 05:49:13,373 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 14 transitions. cyclomatic complexity: 9. Second operand 2 states. Result 11 states and 22 transitions. Complement of second has 4 states. [2020-06-22 05:49:13,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 05:49:13,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 05:49:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-06-22 05:49:13,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 05:49:13,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:13,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2020-06-22 05:49:13,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:13,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 05:49:13,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:49:13,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 22 transitions. [2020-06-22 05:49:13,377 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:49:13,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-06-22 05:49:13,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 05:49:13,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 05:49:13,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 05:49:13,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:49:13,378 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:49:13,378 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:49:13,378 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:49:13,378 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 05:49:13,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 05:49:13,378 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:49:13,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 05:49:13,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:49:13 BasicIcfg [2020-06-22 05:49:13,384 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:49:13,385 INFO L168 Benchmark]: Toolchain (without parser) took 3084.96 ms. Allocated memory was 649.6 MB in the beginning and 675.3 MB in the end (delta: 25.7 MB). Free memory was 559.9 MB in the beginning and 388.6 MB in the end (delta: 171.3 MB). Peak memory consumption was 197.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:49:13,387 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:49:13,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.74 ms. Allocated memory was 649.6 MB in the beginning and 675.3 MB in the end (delta: 25.7 MB). Free memory was 559.9 MB in the beginning and 641.1 MB in the end (delta: -81.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. [2020-06-22 05:49:13,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 675.3 MB. Free memory was 641.1 MB in the beginning and 640.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:49:13,388 INFO L168 Benchmark]: Boogie Preprocessor took 19.06 ms. Allocated memory is still 675.3 MB. Free memory was 640.0 MB in the beginning and 638.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:49:13,389 INFO L168 Benchmark]: RCFGBuilder took 200.27 ms. Allocated memory is still 675.3 MB. Free memory was 638.9 MB in the beginning and 623.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. [2020-06-22 05:49:13,390 INFO L168 Benchmark]: BlockEncodingV2 took 75.71 ms. Allocated memory is still 675.3 MB. Free memory was 623.4 MB in the beginning and 616.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 05:49:13,390 INFO L168 Benchmark]: TraceAbstraction took 154.02 ms. Allocated memory is still 675.3 MB. Free memory was 616.9 MB in the beginning and 607.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 05:49:13,390 INFO L168 Benchmark]: BuchiAutomizer took 2308.62 ms. Allocated memory is still 675.3 MB. Free memory was 607.2 MB in the beginning and 388.6 MB in the end (delta: 218.6 MB). Peak memory consumption was 218.6 MB. Max. memory is 50.3 GB. [2020-06-22 05:49:13,394 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, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 288.74 ms. Allocated memory was 649.6 MB in the beginning and 675.3 MB in the end (delta: 25.7 MB). Free memory was 559.9 MB in the beginning and 641.1 MB in the end (delta: -81.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 675.3 MB. Free memory was 641.1 MB in the beginning and 640.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.06 ms. Allocated memory is still 675.3 MB. Free memory was 640.0 MB in the beginning and 638.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 200.27 ms. Allocated memory is still 675.3 MB. Free memory was 638.9 MB in the beginning and 623.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.71 ms. Allocated memory is still 675.3 MB. Free memory was 623.4 MB in the beginning and 616.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.02 ms. Allocated memory is still 675.3 MB. Free memory was 616.9 MB in the beginning and 607.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2308.62 ms. Allocated memory is still 675.3 MB. Free memory was 607.2 MB in the beginning and 388.6 MB in the end (delta: 218.6 MB). Peak memory consumption was 218.6 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function -2 * x + 2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * y + -2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 29 SDslu, 7 SDs, 0 SdLazy, 61 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax180 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf93 smp100 dnf100 smp100 tf110 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 05:49:07.070 ----------------------------------------------- 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 05:49:13.645 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check