YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 10:24:39,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 10:24:39,282 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 10:24:39,294 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 10:24:39,294 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 10:24:39,295 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 10:24:39,296 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 10:24:39,298 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 10:24:39,299 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 10:24:39,300 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 10:24:39,301 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 10:24:39,301 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 10:24:39,302 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 10:24:39,303 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 10:24:39,304 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 10:24:39,304 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 10:24:39,305 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 10:24:39,307 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 10:24:39,309 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 10:24:39,310 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 10:24:39,311 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 10:24:39,313 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 10:24:39,315 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 10:24:39,315 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 10:24:39,315 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 10:24:39,316 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 10:24:39,316 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 10:24:39,317 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 10:24:39,317 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 10:24:39,318 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 10:24:39,319 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 10:24:39,319 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 10:24:39,320 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 10:24:39,321 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 10:24:39,321 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 10:24:39,321 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 10:24:39,322 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 10:24:39,323 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 10:24:39,323 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 10:24:39,323 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 10:24:39,338 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 10:24:39,339 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 10:24:39,340 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 10:24:39,340 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 10:24:39,340 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 10:24:39,340 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 10:24:39,340 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 10:24:39,341 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 10:24:39,341 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 10:24:39,341 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 10:24:39,341 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 10:24:39,341 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 10:24:39,341 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 10:24:39,342 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 10:24:39,342 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:39,342 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 10:24:39,342 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 10:24:39,342 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 10:24:39,342 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 10:24:39,343 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 10:24:39,343 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 10:24:39,343 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 10:24:39,343 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 10:24:39,343 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 10:24:39,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 10:24:39,344 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 10:24:39,344 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 10:24:39,344 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 10:24:39,344 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 10:24:39,370 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 10:24:39,382 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 10:24:39,386 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 10:24:39,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 10:24:39,388 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 10:24:39,388 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 10:24:39,455 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/c7948d48a8d64617af6e9e5611cbad14/FLAG53fe37b02 [2020-06-22 10:24:39,792 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 10:24:39,793 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 10:24:39,799 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/c7948d48a8d64617af6e9e5611cbad14/FLAG53fe37b02 [2020-06-22 10:24:40,206 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/c7948d48a8d64617af6e9e5611cbad14 [2020-06-22 10:24:40,217 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 10:24:40,219 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 10:24:40,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 10:24:40,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 10:24:40,223 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 10:24:40,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4073401d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40, skipping insertion in model container [2020-06-22 10:24:40,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 10:24:40,252 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 10:24:40,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 10:24:40,410 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 10:24:40,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 10:24:40,507 INFO L195 MainTranslator]: Completed translation [2020-06-22 10:24:40,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40 WrapperNode [2020-06-22 10:24:40,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 10:24:40,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 10:24:40,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 10:24:40,509 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 10:24:40,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 10:24:40,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 10:24:40,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 10:24:40,544 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 10:24:40,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 10:24:40,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 10:24:40,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 10:24:40,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 10:24:40,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (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 10:24:40,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 10:24:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 10:24:40,771 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 10:24:40,771 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 10:24:40,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:24:40 BoogieIcfgContainer [2020-06-22 10:24:40,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 10:24:40,793 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 10:24:40,794 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 10:24:40,796 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 10:24:40,797 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:24:40" (1/1) ... [2020-06-22 10:24:40,813 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 10:24:40,814 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 10:24:40,815 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 10:24:40,816 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 10:24:40,816 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 10:24:40,818 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 10:24:40,819 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 10:24:40,819 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 10:24:40,834 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 10:24:40,842 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 10:24:40,848 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 10:24:40,850 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 10:24:40,868 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-06-22 10:24:40,870 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 10:24:40,871 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 10:24:40,872 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 10:24:40,872 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 10:24:40,872 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 10:24:40,872 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 10:24:40,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:24:40 BasicIcfg [2020-06-22 10:24:40,873 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 10:24:40,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 10:24:40,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 10:24:40,877 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 10:24:40,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 10:24:40" (1/4) ... [2020-06-22 10:24:40,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e5ad29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:24:40, skipping insertion in model container [2020-06-22 10:24:40,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (2/4) ... [2020-06-22 10:24:40,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e5ad29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:24:40, skipping insertion in model container [2020-06-22 10:24:40,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:24:40" (3/4) ... [2020-06-22 10:24:40,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e5ad29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:24:40, skipping insertion in model container [2020-06-22 10:24:40,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:24:40" (4/4) ... [2020-06-22 10:24:40,881 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 10:24:40,892 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 10:24:40,901 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 10:24:40,919 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 10:24:40,948 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 10:24:40,948 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 10:24:40,949 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 10:24:40,949 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 10:24:40,949 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 10:24:40,949 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 10:24:40,949 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 10:24:40,949 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 10:24:40,950 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 10:24:40,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 10:24:40,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 10:24:40,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 10:24:41,027 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 25) the Hoare annotation is: true [2020-06-22 10:24:41,027 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 10:24:41,027 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 21 23) the Hoare annotation is: true [2020-06-22 10:24:41,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:24:41 BasicIcfg [2020-06-22 10:24:41,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 10:24:41,037 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 10:24:41,037 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 10:24:41,041 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 10:24:41,042 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:24:41,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 10:24:40" (1/5) ... [2020-06-22 10:24:41,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d2ea8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 10:24:41, skipping insertion in model container [2020-06-22 10:24:41,044 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:24:41,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 10:24:40" (2/5) ... [2020-06-22 10:24:41,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d2ea8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 10:24:41, skipping insertion in model container [2020-06-22 10:24:41,045 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:24:41,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:24:40" (3/5) ... [2020-06-22 10:24:41,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d2ea8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:24:41, skipping insertion in model container [2020-06-22 10:24:41,045 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:24:41,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 10:24:40" (4/5) ... [2020-06-22 10:24:41,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d2ea8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:24:41, skipping insertion in model container [2020-06-22 10:24:41,046 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 10:24:41,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:24:41" (5/5) ... [2020-06-22 10:24:41,047 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 10:24:41,075 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 10:24:41,076 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 10:24:41,076 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 10:24:41,076 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 10:24:41,076 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 10:24:41,076 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 10:24:41,076 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 10:24:41,077 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 10:24:41,077 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 10:24:41,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 10:24:41,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 10:24:41,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:24:41,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:24:41,102 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 10:24:41,102 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 10:24:41,102 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 10:24:41,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 10:24:41,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 10:24:41,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:24:41,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:24:41,103 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 10:24:41,103 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 10:24:41,108 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 4#L19-2true [2020-06-22 10:24:41,109 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [36] L19-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_9 0) (< v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 5#L21-2true [45] L21-2-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~i~0_14 1) v_ULTIMATE.start_main_~i~0_13) (< v_ULTIMATE.start_main_~i~0_14 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 4#L19-2true [2020-06-22 10:24:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:41,115 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-06-22 10:24:41,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:41,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:41,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:41,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:41,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:41,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:41,193 INFO L82 PathProgramCache]: Analyzing trace with hash 2122, now seen corresponding path program 1 times [2020-06-22 10:24:41,193 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:41,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:41,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:41,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:41,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:41,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:41,208 INFO L82 PathProgramCache]: Analyzing trace with hash 61704, now seen corresponding path program 1 times [2020-06-22 10:24:41,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:41,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:41,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:41,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:41,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:41,264 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:24:41,265 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:24:41,266 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:24:41,266 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:24:41,266 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 10:24:41,266 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:41,266 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:24:41,266 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:24:41,267 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 10:24:41,267 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:24:41,267 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:24:41,286 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 10:24:41,297 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 10:24:41,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 10:24:41,390 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:24:41,391 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) [2020-06-22 10:24:41,398 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:41,398 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:24:41,431 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:24:41,432 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 10:24:41,439 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:24:41,439 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:24:41,466 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:24:41,466 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 10:24:41,472 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:24:41,473 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:41,505 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 10:24:41,505 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:24:41,649 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 10:24:41,652 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:24:41,652 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:24:41,652 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:24:41,652 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:24:41,652 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 10:24:41,653 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 10:24:41,653 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:24:41,653 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:24:41,653 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 10:24:41,653 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:24:41,653 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:24:41,655 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 10:24:41,659 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 10:24:41,662 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 10:24:41,755 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:24:41,761 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 10:24:41,763 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 10:24:41,764 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:24:41,765 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:24:41,765 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:24:41,765 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:24:41,770 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 10:24:41,770 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 10:24:41,778 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 10:24:41,779 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 10:24:41,780 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:24:41,780 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:24:41,780 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:24:41,780 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:24:41,783 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 10:24:41,783 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 10:24:41,792 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 10:24:41,793 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 10:24:41,793 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:24:41,794 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 10:24:41,794 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:24:41,794 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:24:41,795 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:24:41,796 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 10:24:41,796 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 10:24:41,805 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 10:24:41,817 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-06-22 10:24:41,817 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 10:24:41,820 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 10:24:41,820 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 10:24:41,820 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 10:24:41,821 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 10:24:41,822 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 10:24:41,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:24:41,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 10:24:41,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:24:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:24:41,877 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 10:24:41,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:24:41,894 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 10:24:41,922 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 10:24:41,927 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 10:24:41,929 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 10:24:41,989 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 10 states and 15 transitions. Complement of second has 7 states. [2020-06-22 10:24:41,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 10:24:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 10:24:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-06-22 10:24:41,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 10:24:41,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:41,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 10:24:41,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:41,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 10:24:41,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:42,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 15 transitions. [2020-06-22 10:24:42,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 10:24:42,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 15 transitions. [2020-06-22 10:24:42,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 10:24:42,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 10:24:42,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2020-06-22 10:24:42,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 10:24:42,010 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 10:24:42,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2020-06-22 10:24:42,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-06-22 10:24:42,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 10:24:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2020-06-22 10:24:42,038 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-06-22 10:24:42,038 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-06-22 10:24:42,038 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 10:24:42,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2020-06-22 10:24:42,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 10:24:42,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:24:42,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:24:42,040 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 10:24:42,040 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 10:24:42,040 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 55#L19-2 [36] L19-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_9 0) (< v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 57#L21-2 [2020-06-22 10:24:42,041 INFO L796 eck$LassoCheckResult]: Loop: 57#L21-2 [40] L21-2-->L21-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 60#L21-2 [45] L21-2-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~i~0_14 1) v_ULTIMATE.start_main_~i~0_13) (< v_ULTIMATE.start_main_~i~0_14 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 56#L19-2 [36] L19-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_9 0) (< v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 57#L21-2 [2020-06-22 10:24:42,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:42,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1989, now seen corresponding path program 1 times [2020-06-22 10:24:42,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:42,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:42,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:42,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:42,050 INFO L82 PathProgramCache]: Analyzing trace with hash 69662, now seen corresponding path program 1 times [2020-06-22 10:24:42,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:42,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:42,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:42,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:42,062 INFO L82 PathProgramCache]: Analyzing trace with hash 59294170, now seen corresponding path program 1 times [2020-06-22 10:24:42,062 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:42,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:42,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:42,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,104 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:24:42,104 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:24:42,104 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:24:42,104 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:24:42,104 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 10:24:42,104 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:42,104 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:24:42,105 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:24:42,105 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 10:24:42,105 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:24:42,105 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:24:42,107 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 10:24:42,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 10:24:42,112 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 10:24:42,184 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:24:42,184 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:42,191 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:24:42,192 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:24:42,220 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:24:42,220 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:42,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:24:42,230 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:24:42,257 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:24:42,258 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:42,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:24:42,264 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:42,301 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 10:24:42,301 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:24:42,459 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 10:24:42,462 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:24:42,462 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:24:42,463 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:24:42,463 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:24:42,463 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 10:24:42,463 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 10:24:42,463 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:24:42,464 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:24:42,464 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 10:24:42,464 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:24:42,464 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:24:42,466 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 10:24:42,470 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 10:24:42,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 10:24:42,541 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:24:42,542 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 10:24:42,542 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 10:24:42,543 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:24:42,543 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:24:42,543 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:24:42,544 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:24:42,546 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 10:24:42,546 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 10:24:42,550 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 10:24:42,551 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 10:24:42,551 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:24:42,551 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:24:42,552 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:24:42,552 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:24:42,554 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 10:24:42,554 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 10:24:42,559 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 10:24:42,559 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 10:24:42,560 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:24:42,561 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 10:24:42,561 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:24:42,561 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:24:42,561 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:24:42,562 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 10:24:42,562 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 10:24:42,570 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 10:24:42,575 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 10:24:42,575 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 10:24:42,576 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 10:24:42,576 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 10:24:42,576 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 10:24:42,576 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 10:24:42,577 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 10:24:42,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:24:42,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 10:24:42,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:24:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:24:42,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 10:24:42,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:24:42,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-06-22 10:24:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:24:42,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 10:24:42,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:24:42,676 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 10:24:42,677 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 10:24:42,677 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-06-22 10:24:42,712 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 18 states and 30 transitions. Complement of second has 7 states. [2020-06-22 10:24:42,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-22 10:24:42,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 10:24:42,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-06-22 10:24:42,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 10:24:42,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:42,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 10:24:42,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:42,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 10:24:42,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:42,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 30 transitions. [2020-06-22 10:24:42,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 10:24:42,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 25 transitions. [2020-06-22 10:24:42,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 10:24:42,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 10:24:42,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 25 transitions. [2020-06-22 10:24:42,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 10:24:42,723 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2020-06-22 10:24:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 25 transitions. [2020-06-22 10:24:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2020-06-22 10:24:42,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-06-22 10:24:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 20 transitions. [2020-06-22 10:24:42,726 INFO L729 BuchiCegarLoop]: Abstraction has 12 states and 20 transitions. [2020-06-22 10:24:42,726 INFO L609 BuchiCegarLoop]: Abstraction has 12 states and 20 transitions. [2020-06-22 10:24:42,726 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 10:24:42,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 20 transitions. [2020-06-22 10:24:42,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 10:24:42,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 10:24:42,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 10:24:42,728 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 10:24:42,728 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 10:24:42,728 INFO L794 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 132#L19-2 [36] L19-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_9 0) (< v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 133#L21-2 [40] L21-2-->L21-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 136#L21-2 [2020-06-22 10:24:42,729 INFO L796 eck$LassoCheckResult]: Loop: 136#L21-2 [40] L21-2-->L21-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_7) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 136#L21-2 [2020-06-22 10:24:42,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:42,729 INFO L82 PathProgramCache]: Analyzing trace with hash 61699, now seen corresponding path program 1 times [2020-06-22 10:24:42,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:42,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:42,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:42,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:42,739 INFO L82 PathProgramCache]: Analyzing trace with hash 71, now seen corresponding path program 1 times [2020-06-22 10:24:42,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:42,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:42,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:42,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:42,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1912709, now seen corresponding path program 2 times [2020-06-22 10:24:42,744 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 10:24:42,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 10:24:42,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 10:24:42,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 10:24:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 10:24:42,764 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:24:42,765 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:24:42,765 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:24:42,765 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:24:42,765 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 10:24:42,765 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:42,765 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:24:42,765 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:24:42,766 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 10:24:42,766 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:24:42,766 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:24:42,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 10:24:42,771 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 10:24:42,778 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 10:24:42,822 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:24:42,823 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:42,830 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:24:42,830 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:24:42,857 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 10:24:42,857 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 10:24:42,863 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 10:24:42,863 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 10:24:42,895 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 10:24:42,895 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 10:24:43,068 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 10:24:43,070 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 10:24:43,070 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 10:24:43,070 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 10:24:43,071 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 10:24:43,071 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 10:24:43,071 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 10:24:43,071 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 10:24:43,071 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 10:24:43,071 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 10:24:43,072 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 10:24:43,072 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 10:24:43,073 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 10:24:43,079 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 10:24:43,083 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 10:24:43,116 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 10:24:43,116 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 10:24:43,117 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 10:24:43,117 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 10:24:43,118 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 10:24:43,118 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 10:24:43,118 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 10:24:43,118 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 10:24:43,119 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 10:24:43,119 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 10:24:43,122 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 10:24:43,126 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 10:24:43,126 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 10:24:43,126 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 10:24:43,127 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 10:24:43,127 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 10:24:43,127 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~j~0 + 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2020-06-22 10:24:43,127 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 10:24:43,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 10:24:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:24:43,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 10:24:43,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:24:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 10:24:43,159 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 10:24:43,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 10:24:43,159 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 10:24:43,160 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 10:24:43,160 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 10:24:43,160 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 20 transitions. cyclomatic complexity: 11 Second operand 2 states. [2020-06-22 10:24:43,174 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 20 transitions. cyclomatic complexity: 11. Second operand 2 states. Result 14 states and 22 transitions. Complement of second has 2 states. [2020-06-22 10:24:43,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 10:24:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 10:24:43,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-06-22 10:24:43,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 10:24:43,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:43,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2020-06-22 10:24:43,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:43,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 10:24:43,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 10:24:43,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 22 transitions. [2020-06-22 10:24:43,178 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 10:24:43,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-06-22 10:24:43,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 10:24:43,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 10:24:43,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 10:24:43,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 10:24:43,179 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 10:24:43,179 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 10:24:43,179 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 10:24:43,179 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 10:24:43,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 10:24:43,179 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 10:24:43,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 10:24:43,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 10:24:43 BasicIcfg [2020-06-22 10:24:43,185 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 10:24:43,186 INFO L168 Benchmark]: Toolchain (without parser) took 2967.95 ms. Allocated memory is still 649.6 MB. Free memory was 564.2 MB in the beginning and 380.8 MB in the end (delta: 183.4 MB). Peak memory consumption was 183.4 MB. Max. memory is 50.3 GB. [2020-06-22 10:24:43,188 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 10:24:43,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.28 ms. Allocated memory is still 649.6 MB. Free memory was 564.2 MB in the beginning and 615.6 MB in the end (delta: -51.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-06-22 10:24:43,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.43 ms. Allocated memory is still 649.6 MB. Free memory was 615.6 MB in the beginning and 614.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 10:24:43,190 INFO L168 Benchmark]: Boogie Preprocessor took 20.31 ms. Allocated memory is still 649.6 MB. Free memory was 614.5 MB in the beginning and 611.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 10:24:43,190 INFO L168 Benchmark]: RCFGBuilder took 228.18 ms. Allocated memory is still 649.6 MB. Free memory was 611.7 MB in the beginning and 597.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. [2020-06-22 10:24:43,191 INFO L168 Benchmark]: BlockEncodingV2 took 79.90 ms. Allocated memory is still 649.6 MB. Free memory was 597.9 MB in the beginning and 591.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-06-22 10:24:43,192 INFO L168 Benchmark]: TraceAbstraction took 162.38 ms. Allocated memory is still 649.6 MB. Free memory was 591.2 MB in the beginning and 582.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 10:24:43,192 INFO L168 Benchmark]: BuchiAutomizer took 2148.34 ms. Allocated memory is still 649.6 MB. Free memory was 582.5 MB in the beginning and 380.8 MB in the end (delta: 201.8 MB). Peak memory consumption was 201.8 MB. Max. memory is 50.3 GB. [2020-06-22 10:24:43,196 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 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 288.28 ms. Allocated memory is still 649.6 MB. Free memory was 564.2 MB in the beginning and 615.6 MB in the end (delta: -51.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.43 ms. Allocated memory is still 649.6 MB. Free memory was 615.6 MB in the beginning and 614.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.31 ms. Allocated memory is still 649.6 MB. Free memory was 614.5 MB in the beginning and 611.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 228.18 ms. Allocated memory is still 649.6 MB. Free memory was 611.7 MB in the beginning and 597.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.90 ms. Allocated memory is still 649.6 MB. Free memory was 597.9 MB in the beginning and 591.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 162.38 ms. Allocated memory is still 649.6 MB. Free memory was 591.2 MB in the beginning and 582.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2148.34 ms. Allocated memory is still 649.6 MB. Free memory was 582.5 MB in the beginning and 380.8 MB in the end (delta: 201.8 MB). Peak memory consumption was 201.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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 -1 * i and consists of 5 locations. One nondeterministic module has affine ranking function n + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function -2 * j + 2 * i + 1 and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 12 SDtfs, 17 SDslu, 0 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax184 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf109 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 10:24:36.971 ----------------------------------------------- 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 10:24:43.429 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check