YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:21:40,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:21:40,796 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:21:40,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:21:40,808 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:21:40,809 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:21:40,810 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:21:40,811 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:21:40,813 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:21:40,814 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:21:40,814 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:21:40,815 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:21:40,815 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:21:40,816 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:21:40,817 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:21:40,818 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:21:40,819 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:21:40,821 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:21:40,823 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:21:40,824 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:21:40,825 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:21:40,826 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:21:40,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:21:40,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:21:40,829 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:21:40,830 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:21:40,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:21:40,831 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:21:40,831 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:21:40,832 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:21:40,832 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:21:40,833 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:21:40,834 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:21:40,834 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:21:40,835 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:21:40,835 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:21:40,835 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:21:40,836 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:21:40,837 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:21:40,837 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 05:21:40,851 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:21:40,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:21:40,852 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:21:40,853 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:21:40,853 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:21:40,853 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:21:40,853 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:21:40,853 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:21:40,853 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:21:40,854 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:21:40,854 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:21:40,854 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:21:40,854 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:21:40,854 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:21:40,854 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:40,854 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:21:40,855 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:21:40,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:21:40,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:21:40,855 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:21:40,855 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:21:40,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:21:40,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:21:40,856 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:21:40,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:21:40,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:21:40,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:21:40,856 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:21:40,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:21:40,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:21:40,894 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:21:40,898 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:21:40,899 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:21:40,899 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:21:40,900 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:21:40,964 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/6e0da3a31dfc4236a42709c9e9f28879/FLAGbc93e2c2d [2020-06-22 05:21:41,302 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:21:41,303 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:21:41,309 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/6e0da3a31dfc4236a42709c9e9f28879/FLAGbc93e2c2d [2020-06-22 05:21:41,715 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/6e0da3a31dfc4236a42709c9e9f28879 [2020-06-22 05:21:41,726 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:21:41,728 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:21:41,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:21:41,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:21:41,732 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:21:41,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:21:41" (1/1) ... [2020-06-22 05:21:41,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5c31a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:41, skipping insertion in model container [2020-06-22 05:21:41,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:21:41" (1/1) ... [2020-06-22 05:21:41,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:21:41,762 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:21:41,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:21:41,923 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:21:41,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:21:42,008 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:21:42,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42 WrapperNode [2020-06-22 05:21:42,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:21:42,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:21:42,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:21:42,010 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:21:42,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:21:42,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:21:42,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:21:42,044 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:21:42,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:21:42,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:21:42,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:21:42,064 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:21:42,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:21:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:21:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:21:42,270 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:21:42,271 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2020-06-22 05:21:42,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:21:42 BoogieIcfgContainer [2020-06-22 05:21:42,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:21:42,273 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:21:42,273 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:21:42,275 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:21:42,275 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:21:42" (1/1) ... [2020-06-22 05:21:42,291 INFO L313 BlockEncoder]: Initial Icfg 14 locations, 22 edges [2020-06-22 05:21:42,292 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:21:42,293 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:21:42,294 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:21:42,294 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:21:42,296 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:21:42,297 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:21:42,297 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:21:42,313 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:21:42,328 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 05:21:42,332 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-06-22 05:21:42,333 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:21:42,347 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-06-22 05:21:42,349 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 05:21:42,350 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:21:42,350 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:21:42,350 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:21:42,351 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:21:42,351 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 14 edges [2020-06-22 05:21:42,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:21:42 BasicIcfg [2020-06-22 05:21:42,352 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:21:42,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:21:42,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:21:42,356 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:21:42,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:21:41" (1/4) ... [2020-06-22 05:21:42,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513f699e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:21:42, skipping insertion in model container [2020-06-22 05:21:42,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (2/4) ... [2020-06-22 05:21:42,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513f699e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:21:42, skipping insertion in model container [2020-06-22 05:21:42,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:21:42" (3/4) ... [2020-06-22 05:21:42,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513f699e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:21:42, skipping insertion in model container [2020-06-22 05:21:42,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:21:42" (4/4) ... [2020-06-22 05:21:42,359 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:21:42,369 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:21:42,376 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:21:42,394 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:21:42,426 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:21:42,426 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:21:42,427 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:21:42,427 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:21:42,427 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:21:42,427 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:21:42,427 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:21:42,427 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:21:42,427 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:21:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-06-22 05:21:42,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:21:42,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-06-22 05:21:42,501 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:21:42,501 INFO L451 ceAbstractionStarter]: At program point L31-2(lines 31 33) the Hoare annotation is: true [2020-06-22 05:21:42,502 INFO L451 ceAbstractionStarter]: At program point L26-2(lines 26 28) the Hoare annotation is: true [2020-06-22 05:21:42,502 INFO L448 ceAbstractionStarter]: For program point L25-1(lines 25 35) no Hoare annotation was computed. [2020-06-22 05:21:42,502 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-06-22 05:21:42,502 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 13 38) no Hoare annotation was computed. [2020-06-22 05:21:42,502 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 24) no Hoare annotation was computed. [2020-06-22 05:21:42,503 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 13 38) the Hoare annotation is: true [2020-06-22 05:21:42,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:21:42 BasicIcfg [2020-06-22 05:21:42,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:21:42,512 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:21:42,512 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:21:42,517 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:21:42,518 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:21:42,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:21:41" (1/5) ... [2020-06-22 05:21:42,519 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4eaf85ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:21:42, skipping insertion in model container [2020-06-22 05:21:42,519 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:21:42,519 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:21:42" (2/5) ... [2020-06-22 05:21:42,519 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4eaf85ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:21:42, skipping insertion in model container [2020-06-22 05:21:42,519 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:21:42,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:21:42" (3/5) ... [2020-06-22 05:21:42,520 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4eaf85ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:21:42, skipping insertion in model container [2020-06-22 05:21:42,520 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:21:42,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:21:42" (4/5) ... [2020-06-22 05:21:42,521 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4eaf85ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:21:42, skipping insertion in model container [2020-06-22 05:21:42,521 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:21:42,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:21:42" (5/5) ... [2020-06-22 05:21:42,523 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:21:42,551 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:21:42,551 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:21:42,551 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:21:42,552 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:21:42,552 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:21:42,552 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:21:42,552 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:21:42,552 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:21:42,552 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:21:42,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-06-22 05:21:42,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 05:21:42,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:21:42,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:21:42,579 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:21:42,579 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-06-22 05:21:42,579 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:21:42,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-06-22 05:21:42,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 05:21:42,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:21:42,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:21:42,581 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:21:42,581 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-06-22 05:21:42,586 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [74] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 5#L13-2true [2020-06-22 05:21:42,587 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true [77] L13-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~tmp~0_4 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~xtmp~0_8 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 6#L17true [62] L17-->L21-2: Formula: (and (= 0 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~y~0_11)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 10#L21-2true [86] L21-2-->L31-2: Formula: (>= 0 v_ULTIMATE.start_main_~xtmp~0_7) InVars {ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_7} OutVars{ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_7} AuxVars[] AssignedVars[] 7#L31-2true [97] L31-2-->L25-1: Formula: (and (= v_ULTIMATE.start_main_~xtmp~0_18 v_ULTIMATE.start_main_~y~0_20) (<= 0 v_ULTIMATE.start_main_~xtmp~0_18)) InVars {ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_18} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_20, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_18} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 9#L25-1true [82] L25-1-->L13-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~tmp~0_5) InVars {ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L13-2true [2020-06-22 05:21:42,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:42,593 INFO L82 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 1 times [2020-06-22 05:21:42,595 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:21:42,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:21:42,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:21:42,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:42,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:42,662 INFO L82 PathProgramCache]: Analyzing trace with hash 101673045, now seen corresponding path program 1 times [2020-06-22 05:21:42,662 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:21:42,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:21:42,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:21:42,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:21:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:21:42,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 05:21:42,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 05:21:42,720 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 05:21:42,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 05:21:42,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 05:21:42,736 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-06-22 05:21:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 05:21:42,770 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2020-06-22 05:21:42,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 05:21:42,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2020-06-22 05:21:42,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 05:21:42,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2020-06-22 05:21:42,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 05:21:42,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 05:21:42,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-06-22 05:21:42,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:21:42,781 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-06-22 05:21:42,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-06-22 05:21:42,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-06-22 05:21:42,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 05:21:42,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-06-22 05:21:42,809 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-06-22 05:21:42,810 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-06-22 05:21:42,810 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:21:42,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-06-22 05:21:42,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 05:21:42,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:21:42,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:21:42,811 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:21:42,811 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-06-22 05:21:42,811 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRY [74] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 28#L13-2 [2020-06-22 05:21:42,812 INFO L796 eck$LassoCheckResult]: Loop: 28#L13-2 [77] L13-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~tmp~0_4 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~xtmp~0_8 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 29#L17 [92] L17-->L21: Formula: (< 0 v_ULTIMATE.start_main_~y~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[] 25#L21 [87] L21-->L21-2: Formula: (>= v_ULTIMATE.start_main_~y~0_15 0) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15} AuxVars[] AssignedVars[] 26#L21-2 [69] L21-2-->L26-2: Formula: (< 0 v_ULTIMATE.start_main_~xtmp~0_15) InVars {ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_15} OutVars{ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_15} AuxVars[] AssignedVars[] 32#L26-2 [96] L26-2-->L25-1: Formula: (and (= v_ULTIMATE.start_main_~xtmp~0_17 v_ULTIMATE.start_main_~y~0_18) (< v_ULTIMATE.start_main_~xtmp~0_17 v_ULTIMATE.start_main_~y~0_19)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_19, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_17} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_18, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_17} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 31#L25-1 [82] L25-1-->L13-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~tmp~0_5) InVars {ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 28#L13-2 [2020-06-22 05:21:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:42,812 INFO L82 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 2 times [2020-06-22 05:21:42,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:21:42,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:21:42,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:21:42,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:42,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:42,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1115393872, now seen corresponding path program 1 times [2020-06-22 05:21:42,819 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:21:42,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:21:42,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,821 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:21:42,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:42,834 INFO L82 PathProgramCache]: Analyzing trace with hash 990675736, now seen corresponding path program 1 times [2020-06-22 05:21:42,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:21:42,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:21:42,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:21:42,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:42,915 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:21:42,916 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:21:42,917 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:21:42,917 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:21:42,917 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:21:42,917 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:42,917 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:21:42,917 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:21:42,917 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:21:42,918 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:21:42,918 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:21:42,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:42,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:42,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:43,091 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:21:43,092 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:43,098 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:43,098 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:21:43,130 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:21:43,130 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:43,136 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:43,136 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:21:43,162 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:21:43,163 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:43,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:43,171 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 05:21:43,209 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:21:43,209 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:21:51,473 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:21:51,477 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:21:51,477 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:21:51,477 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:21:51,477 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:21:51,478 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:21:51,478 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:21:51,478 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:21:51,478 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:21:51,478 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:21:51,478 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:21:51,478 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:21:51,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:51,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:51,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:51,570 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:21:51,576 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:21:51,578 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:21:51,579 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:21:51,579 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:21:51,580 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:21:51,580 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:21:51,580 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:21:51,583 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:21:51,584 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:21:51,600 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:21:51,617 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:21:51,617 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:21:51,619 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:21:51,619 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:21:51,620 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:21:51,620 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 05:21:51,622 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:21:51,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:21:51,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:21:51,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:21:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:21:51,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:21:51,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:21:51,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:21:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:21:51,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:21:51,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:21:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:21:51,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:21:51,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:21:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:21:51,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:21:51,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:21:51,804 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 05:21:51,807 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 4 loop predicates [2020-06-22 05:21:51,808 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand 5 states. [2020-06-22 05:21:51,917 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 29 states and 38 transitions. Complement of second has 10 states. [2020-06-22 05:21:51,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 05:21:51,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 05:21:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 36 transitions. [2020-06-22 05:21:51,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 05:21:51,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:21:51,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 7 letters. Loop has 6 letters. [2020-06-22 05:21:51,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:21:51,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 1 letters. Loop has 12 letters. [2020-06-22 05:21:51,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:21:51,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-06-22 05:21:51,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:21:51,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2020-06-22 05:21:51,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 05:21:51,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 05:21:51,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2020-06-22 05:21:51,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:21:51,934 INFO L706 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-06-22 05:21:51,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2020-06-22 05:21:51,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-06-22 05:21:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 05:21:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-06-22 05:21:51,936 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-06-22 05:21:51,936 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-06-22 05:21:51,936 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:21:51,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-06-22 05:21:51,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:21:51,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:21:51,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:21:51,938 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-06-22 05:21:51,938 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 05:21:51,938 INFO L794 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRY [74] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 169#L13-2 [77] L13-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~tmp~0_4 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~xtmp~0_8 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 171#L17 [92] L17-->L21: Formula: (< 0 v_ULTIMATE.start_main_~y~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[] 164#L21 [87] L21-->L21-2: Formula: (>= v_ULTIMATE.start_main_~y~0_15 0) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15} AuxVars[] AssignedVars[] 165#L21-2 [69] L21-2-->L26-2: Formula: (< 0 v_ULTIMATE.start_main_~xtmp~0_15) InVars {ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_15} OutVars{ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_15} AuxVars[] AssignedVars[] 174#L26-2 [2020-06-22 05:21:51,939 INFO L796 eck$LassoCheckResult]: Loop: 174#L26-2 [81] L26-2-->L26-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~xtmp~0_5) (= v_ULTIMATE.start_main_~xtmp~0_4 (+ v_ULTIMATE.start_main_~xtmp~0_5 (* (- 1) v_ULTIMATE.start_main_~y~0_6)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~xtmp~0] 174#L26-2 [2020-06-22 05:21:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:51,939 INFO L82 PathProgramCache]: Analyzing trace with hash 99354790, now seen corresponding path program 1 times [2020-06-22 05:21:51,939 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:21:51,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:21:51,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:51,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:21:51,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:51,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:51,954 INFO L82 PathProgramCache]: Analyzing trace with hash 112, now seen corresponding path program 1 times [2020-06-22 05:21:51,955 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:21:51,955 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:21:51,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:51,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:21:51,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:51,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:51,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1214968725, now seen corresponding path program 1 times [2020-06-22 05:21:51,961 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:21:51,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:21:51,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:51,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:21:51,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:21:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:21:52,025 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:21:52,025 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:21:52,025 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:21:52,026 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:21:52,026 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:21:52,026 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:52,026 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:21:52,026 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:21:52,026 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 05:21:52,026 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:21:52,026 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:21:52,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,133 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:21:52,133 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 05:21:52,137 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:52,138 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:21:52,166 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:21:52,166 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 05:21:52,176 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:52,176 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:21:52,180 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:21:52,181 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:52,210 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:52,210 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:21:52,214 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:21:52,214 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:52,245 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:52,245 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:21:52,249 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:21:52,249 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-06-22 05:21:52,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:52,280 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:52,307 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:21:52,308 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:21:52,312 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:21:52,312 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 05:21:52,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:21:52,346 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:21:52,539 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:21:52,541 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:21:52,542 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:21:52,542 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:21:52,542 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:21:52,542 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:21:52,543 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:21:52,543 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:21:52,543 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:21:52,543 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 05:21:52,543 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:21:52,543 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:21:52,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:21:52,651 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:21:52,652 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:21:52,652 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:21:52,653 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:21:52,653 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:21:52,653 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:21:52,653 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:21:52,656 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:21:52,656 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:21:52,660 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:21:52,660 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:21:52,661 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:21:52,662 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:21:52,662 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:21:52,662 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:21:52,665 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:21:52,665 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:21:52,691 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:21:52,706 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 05:21:52,706 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:21:52,707 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:21:52,710 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-06-22 05:21:52,711 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:21:52,711 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~xtmp~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~xtmp~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-06-22 05:21:52,715 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-06-22 05:21:52,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:21:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:21:52,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 05:21:52,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:21:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:21:52,775 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:21:52,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:21:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:21:52,789 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:21:52,789 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-06-22 05:21:52,789 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-06-22 05:21:52,831 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 22 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 18 states and 23 transitions. Complement of second has 3 states. [2020-06-22 05:21:52,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 05:21:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:21:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-06-22 05:21:52,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2020-06-22 05:21:52,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:21:52,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2020-06-22 05:21:52,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:21:52,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 05:21:52,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:21:52,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-06-22 05:21:52,835 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:21:52,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-06-22 05:21:52,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 05:21:52,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 05:21:52,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 05:21:52,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:21:52,836 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:21:52,836 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:21:52,836 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:21:52,836 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 05:21:52,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 05:21:52,837 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:21:52,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 05:21:52,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:21:52 BasicIcfg [2020-06-22 05:21:52,843 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:21:52,844 INFO L168 Benchmark]: Toolchain (without parser) took 11116.90 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 558.7 MB in the beginning and 393.2 MB in the end (delta: 165.5 MB). Peak memory consumption was 198.5 MB. Max. memory is 50.3 GB. [2020-06-22 05:21:52,845 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:21:52,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.40 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 558.7 MB in the beginning and 649.0 MB in the end (delta: -90.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-22 05:21:52,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.28 ms. Allocated memory is still 682.6 MB. Free memory was 649.0 MB in the beginning and 645.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:21:52,847 INFO L168 Benchmark]: Boogie Preprocessor took 19.61 ms. Allocated memory is still 682.6 MB. Free memory was 645.9 MB in the beginning and 644.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 05:21:52,847 INFO L168 Benchmark]: RCFGBuilder took 208.35 ms. Allocated memory is still 682.6 MB. Free memory was 644.6 MB in the beginning and 630.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-06-22 05:21:52,848 INFO L168 Benchmark]: BlockEncodingV2 took 79.07 ms. Allocated memory is still 682.6 MB. Free memory was 630.3 MB in the beginning and 622.5 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 50.3 GB. [2020-06-22 05:21:52,848 INFO L168 Benchmark]: TraceAbstraction took 158.82 ms. Allocated memory is still 682.6 MB. Free memory was 622.5 MB in the beginning and 613.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:21:52,849 INFO L168 Benchmark]: BuchiAutomizer took 10331.30 ms. Allocated memory is still 682.6 MB. Free memory was 613.0 MB in the beginning and 393.2 MB in the end (delta: 219.9 MB). Peak memory consumption was 219.9 MB. Max. memory is 50.3 GB. [2020-06-22 05:21:52,853 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 14 locations, 22 edges - StatisticsResult: Encoded RCFG 8 locations, 14 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 280.40 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 558.7 MB in the beginning and 649.0 MB in the end (delta: -90.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.28 ms. Allocated memory is still 682.6 MB. Free memory was 649.0 MB in the beginning and 645.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.61 ms. Allocated memory is still 682.6 MB. Free memory was 645.9 MB in the beginning and 644.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 208.35 ms. Allocated memory is still 682.6 MB. Free memory was 644.6 MB in the beginning and 630.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.07 ms. Allocated memory is still 682.6 MB. Free memory was 630.3 MB in the beginning and 622.5 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 158.82 ms. Allocated memory is still 682.6 MB. Free memory was 622.5 MB in the beginning and 613.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 10331.30 ms. Allocated memory is still 682.6 MB. Free memory was 613.0 MB in the beginning and 393.2 MB in the end (delta: 219.9 MB). Peak memory consumption was 219.9 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=8occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 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 (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function -2 * y + 2 * xtmp + 1 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 9.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 39 SDslu, 8 SDs, 0 SdLazy, 54 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf97 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf90 smp100 dnf100 smp100 tf103 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 8.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 05:21:38.492 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 05:21:53.101 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check