YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 09:16:10,013 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 09:16:10,015 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 09:16:10,026 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 09:16:10,027 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 09:16:10,028 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 09:16:10,029 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 09:16:10,030 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 09:16:10,032 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 09:16:10,033 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 09:16:10,033 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 09:16:10,034 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 09:16:10,035 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 09:16:10,035 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 09:16:10,037 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 09:16:10,037 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 09:16:10,038 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 09:16:10,040 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 09:16:10,041 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 09:16:10,043 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 09:16:10,044 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 09:16:10,045 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 09:16:10,047 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 09:16:10,047 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 09:16:10,048 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 09:16:10,048 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 09:16:10,049 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 09:16:10,050 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 09:16:10,050 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 09:16:10,051 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 09:16:10,051 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 09:16:10,052 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 09:16:10,053 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 09:16:10,053 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 09:16:10,054 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 09:16:10,054 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 09:16:10,055 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 09:16:10,055 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 09:16:10,057 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 09:16:10,057 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 09:16:10,072 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 09:16:10,072 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 09:16:10,074 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 09:16:10,074 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 09:16:10,074 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 09:16:10,074 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:16:10,074 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 09:16:10,074 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 09:16:10,075 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 09:16:10,075 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 09:16:10,075 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 09:16:10,075 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 09:16:10,075 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 09:16:10,075 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 09:16:10,076 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:16:10,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 09:16:10,076 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 09:16:10,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 09:16:10,076 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 09:16:10,076 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 09:16:10,076 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 09:16:10,077 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 09:16:10,077 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 09:16:10,077 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 09:16:10,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:16:10,077 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 09:16:10,077 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 09:16:10,078 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 09:16:10,078 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 09:16:10,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 09:16:10,119 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 09:16:10,122 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 09:16:10,124 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 09:16:10,124 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 09:16:10,125 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:16:10,191 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/cc2c88c17d9045ae9c1ec6c7bc1bc1c7/FLAG3df758e2d [2020-06-22 09:16:10,527 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 09:16:10,528 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:16:10,534 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/cc2c88c17d9045ae9c1ec6c7bc1bc1c7/FLAG3df758e2d [2020-06-22 09:16:10,940 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/cc2c88c17d9045ae9c1ec6c7bc1bc1c7 [2020-06-22 09:16:10,951 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 09:16:10,953 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 09:16:10,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 09:16:10,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 09:16:10,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 09:16:10,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:16:10" (1/1) ... [2020-06-22 09:16:10,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bdc5b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:10, skipping insertion in model container [2020-06-22 09:16:10,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:16:10" (1/1) ... [2020-06-22 09:16:10,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 09:16:10,986 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 09:16:11,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:16:11,150 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 09:16:11,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:16:11,246 INFO L195 MainTranslator]: Completed translation [2020-06-22 09:16:11,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11 WrapperNode [2020-06-22 09:16:11,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 09:16:11,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 09:16:11,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 09:16:11,248 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 09:16:11,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 09:16:11,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 09:16:11,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 09:16:11,284 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 09:16:11,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 09:16:11,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 09:16:11,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 09:16:11,305 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 09:16:11,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (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 09:16:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 09:16:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 09:16:11,524 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 09:16:11,524 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 09:16:11,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:16:11 BoogieIcfgContainer [2020-06-22 09:16:11,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 09:16:11,526 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 09:16:11,526 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 09:16:11,529 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 09:16:11,530 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:16:11" (1/1) ... [2020-06-22 09:16:11,545 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-06-22 09:16:11,547 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 09:16:11,547 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 09:16:11,548 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 09:16:11,548 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:16:11,550 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 09:16:11,551 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 09:16:11,551 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 09:16:11,566 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 09:16:11,581 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 09:16:11,586 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 09:16:11,587 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:16:11,601 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 09:16:11,603 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 09:16:11,604 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:16:11,604 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:16:11,605 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 09:16:11,605 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:16:11,605 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-06-22 09:16:11,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:16:11 BasicIcfg [2020-06-22 09:16:11,606 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 09:16:11,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 09:16:11,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 09:16:11,611 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 09:16:11,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 09:16:10" (1/4) ... [2020-06-22 09:16:11,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3308c425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:16:11, skipping insertion in model container [2020-06-22 09:16:11,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (2/4) ... [2020-06-22 09:16:11,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3308c425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:16:11, skipping insertion in model container [2020-06-22 09:16:11,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:16:11" (3/4) ... [2020-06-22 09:16:11,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3308c425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:16:11, skipping insertion in model container [2020-06-22 09:16:11,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:16:11" (4/4) ... [2020-06-22 09:16:11,615 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:16:11,626 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 09:16:11,634 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 09:16:11,652 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 09:16:11,682 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:16:11,683 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 09:16:11,683 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 09:16:11,683 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:16:11,684 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:16:11,684 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:16:11,684 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 09:16:11,684 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:16:11,684 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 09:16:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 09:16:11,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 09:16:11,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-22 09:16:11,759 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-06-22 09:16:11,759 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 09:16:11,760 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 12 20) no Hoare annotation was computed. [2020-06-22 09:16:11,760 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 20) no Hoare annotation was computed. [2020-06-22 09:16:11,760 INFO L451 ceAbstractionStarter]: At program point L11-2(lines 11 22) the Hoare annotation is: true [2020-06-22 09:16:11,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:16:11 BasicIcfg [2020-06-22 09:16:11,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 09:16:11,769 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 09:16:11,769 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 09:16:11,772 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 09:16:11,773 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:16:11,773 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 09:16:10" (1/5) ... [2020-06-22 09:16:11,774 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79b78df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:16:11, skipping insertion in model container [2020-06-22 09:16:11,774 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:16:11,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:16:11" (2/5) ... [2020-06-22 09:16:11,775 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79b78df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:16:11, skipping insertion in model container [2020-06-22 09:16:11,775 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:16:11,775 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:16:11" (3/5) ... [2020-06-22 09:16:11,776 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79b78df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:16:11, skipping insertion in model container [2020-06-22 09:16:11,776 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:16:11,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:16:11" (4/5) ... [2020-06-22 09:16:11,776 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79b78df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:16:11, skipping insertion in model container [2020-06-22 09:16:11,776 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:16:11,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:16:11" (5/5) ... [2020-06-22 09:16:11,778 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:16:11,805 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:16:11,805 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 09:16:11,805 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 09:16:11,805 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:16:11,805 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:16:11,805 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:16:11,806 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 09:16:11,806 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:16:11,806 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 09:16:11,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 09:16:11,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:16:11,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:16:11,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:16:11,832 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:16:11,832 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:16:11,833 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 09:16:11,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 09:16:11,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:16:11,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:16:11,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:16:11,834 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:16:11,834 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:16:11,839 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 7#L11-2true [2020-06-22 09:16:11,839 INFO L796 eck$LassoCheckResult]: Loop: 7#L11-2true [45] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 5#L12true [33] L12-->L15-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 6#L15-2true [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 7#L11-2true [2020-06-22 09:16:11,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:11,845 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-06-22 09:16:11,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:16:11,848 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:16:11,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:11,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:16:11,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:11,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:11,917 INFO L82 PathProgramCache]: Analyzing trace with hash 74095, now seen corresponding path program 1 times [2020-06-22 09:16:11,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:16:11,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:16:11,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:11,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:16:11,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:11,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:11,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1921137, now seen corresponding path program 1 times [2020-06-22 09:16:11,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:16:11,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:16:11,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:11,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:16:11,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:11,998 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:16:11,999 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:16:11,999 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:16:11,999 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:16:11,999 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:16:12,000 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:16:12,000 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:16:12,000 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:16:12,000 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:16:12,000 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:16:12,001 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:16:12,020 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 09:16:12,035 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 09:16:12,039 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 09:16:12,045 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 09:16:12,049 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 09:16:12,140 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:16:12,140 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 09:16:12,146 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:16:12,147 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 09:16:12,179 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:16:12,179 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:16:12,211 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:16:12,213 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:16:12,213 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:16:12,213 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:16:12,213 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:16:12,213 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:16:12,213 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:16:12,214 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:16:12,214 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:16:12,214 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:16:12,214 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:16:12,214 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:16:12,216 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 09:16:12,225 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 09:16:12,228 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 09:16:12,232 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 09:16:12,235 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 09:16:12,324 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:16:12,329 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:16:12,331 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 09:16:12,333 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:16:12,333 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:16:12,333 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:16:12,334 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:16:12,334 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:16:12,336 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:16:12,336 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:16:12,344 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:16:12,350 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:16:12,350 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:16:12,352 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:16:12,352 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:16:12,353 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:16:12,353 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 09:16:12,355 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:16:12,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:16:12,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:16:12,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:16:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:16:12,408 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:16:12,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:16:12,435 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 09:16:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:16:12,476 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:16:12,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:16:12,477 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:16:12,483 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 09:16:12,484 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-06-22 09:16:12,538 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 18 states and 30 transitions. Complement of second has 6 states. [2020-06-22 09:16:12,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 09:16:12,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:16:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-06-22 09:16:12,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 09:16:12,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:16:12,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 09:16:12,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:16:12,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 09:16:12,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:16:12,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 30 transitions. [2020-06-22 09:16:12,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:16:12,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 27 transitions. [2020-06-22 09:16:12,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 09:16:12,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 09:16:12,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 27 transitions. [2020-06-22 09:16:12,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:16:12,561 INFO L706 BuchiCegarLoop]: Abstraction has 16 states and 27 transitions. [2020-06-22 09:16:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 27 transitions. [2020-06-22 09:16:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-06-22 09:16:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-06-22 09:16:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2020-06-22 09:16:12,591 INFO L729 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-06-22 09:16:12,591 INFO L609 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-06-22 09:16:12,591 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 09:16:12,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 24 transitions. [2020-06-22 09:16:12,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:16:12,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:16:12,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:16:12,593 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:16:12,593 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 09:16:12,593 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 75#L11-2 [45] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 76#L12 [2020-06-22 09:16:12,593 INFO L796 eck$LassoCheckResult]: Loop: 76#L12 [43] L12-->L15: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 70#L15 [44] L15-->L15-2: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_8) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} AuxVars[] AssignedVars[] 71#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 80#L11-2 [45] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 76#L12 [2020-06-22 09:16:12,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:12,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1998, now seen corresponding path program 1 times [2020-06-22 09:16:12,594 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:16:12,594 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:16:12,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:16:12,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:12,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:12,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2247979, now seen corresponding path program 1 times [2020-06-22 09:16:12,602 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:16:12,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:16:12,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:16:12,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:16:12,632 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 09:16:12,634 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 09:16:12,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 09:16:12,637 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 09:16:12,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 09:16:12,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 09:16:12,640 INFO L87 Difference]: Start difference. First operand 13 states and 24 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-06-22 09:16:12,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 09:16:12,664 INFO L93 Difference]: Finished difference Result 20 states and 33 transitions. [2020-06-22 09:16:12,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 09:16:12,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 33 transitions. [2020-06-22 09:16:12,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:16:12,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 13 states and 20 transitions. [2020-06-22 09:16:12,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 09:16:12,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 09:16:12,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2020-06-22 09:16:12,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:16:12,669 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2020-06-22 09:16:12,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2020-06-22 09:16:12,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-06-22 09:16:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-06-22 09:16:12,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 20 transitions. [2020-06-22 09:16:12,671 INFO L729 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2020-06-22 09:16:12,671 INFO L609 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2020-06-22 09:16:12,671 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 09:16:12,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 20 transitions. [2020-06-22 09:16:12,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:16:12,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:16:12,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:16:12,673 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:16:12,673 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 09:16:12,673 INFO L794 eck$LassoCheckResult]: Stem: 113#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= 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_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 114#L11-2 [45] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 115#L12 [2020-06-22 09:16:12,673 INFO L796 eck$LassoCheckResult]: Loop: 115#L12 [43] L12-->L15: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 109#L15 [30] L15-->L15-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 110#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 118#L11-2 [45] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 115#L12 [2020-06-22 09:16:12,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:12,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1998, now seen corresponding path program 2 times [2020-06-22 09:16:12,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:16:12,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:16:12,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:16:12,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:12,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:12,681 INFO L82 PathProgramCache]: Analyzing trace with hash 2234525, now seen corresponding path program 1 times [2020-06-22 09:16:12,681 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:16:12,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:16:12,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,683 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 09:16:12,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:12,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:12,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1846505962, now seen corresponding path program 1 times [2020-06-22 09:16:12,690 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:16:12,690 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:16:12,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:16:12,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:16:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:16:12,726 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:16:12,727 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:16:12,727 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:16:12,727 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:16:12,727 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:16:12,727 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:16:12,727 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:16:12,727 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:16:12,728 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:16:12,728 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:16:12,728 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:16:12,729 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 09:16:12,733 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 09:16:12,736 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 09:16:12,740 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 09:16:12,743 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 09:16:12,809 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:16:12,810 INFO L412 LassoAnalysis]: Checking for nontermination... 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 09:16:12,817 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:16:12,817 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:16:12,847 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:16:12,847 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 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 09:16:12,859 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:16:12,860 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:16:12,888 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:16:12,888 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 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 09:16:12,896 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:16:12,896 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 09:16:12,932 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:16:12,932 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:16:12,966 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:16:12,966 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] 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 09:16:12,998 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:16:12,998 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:16:13,026 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:16:13,026 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=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 09:16:13,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:16:13,031 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:16:13,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:16:13,069 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:16:13,141 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:16:13,144 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:16:13,144 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:16:13,144 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:16:13,144 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:16:13,145 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:16:13,145 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:16:13,145 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:16:13,145 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:16:13,145 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:16:13,145 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:16:13,146 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:16:13,147 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 09:16:13,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:16:13,159 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 09:16:13,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:16:13,164 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 09:16:13,214 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:16:13,214 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:16:13,215 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 09:16:13,216 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:16:13,216 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:16:13,216 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:16:13,216 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:16:13,219 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:16:13,219 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:16:13,224 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:16:13,224 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 09:16:13,225 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:16:13,226 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:16:13,226 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:16:13,226 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:16:13,228 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:16:13,228 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:16:13,234 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:16:13,235 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 09:16:13,235 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:16:13,235 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:16:13,235 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:16:13,236 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:16:13,236 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:16:13,236 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:16:13,237 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:16:13,240 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:16:13,240 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 09:16:13,241 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:16:13,241 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:16:13,241 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:16:13,241 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:16:13,242 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:16:13,242 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:16:13,242 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:16:13,243 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:16:13,244 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 09:16:13,244 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:16:13,244 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:16:13,244 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:16:13,245 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:16:13,245 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:16:13,245 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:16:13,245 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:16:13,249 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:16:13,253 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:16:13,253 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:16:13,253 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:16:13,254 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:16:13,254 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:16:13,254 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 09:16:13,255 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:16:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:16:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:16:13,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:16:13,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:16:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:16:13,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:16:13,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:16:13,287 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 09:16:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:16:13,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:16:13,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:16:13,319 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:16:13,319 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 09:16:13,319 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 13 states and 20 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-06-22 09:16:13,369 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 13 states and 20 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 44 states and 69 transitions. Complement of second has 9 states. [2020-06-22 09:16:13,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 09:16:13,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:16:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2020-06-22 09:16:13,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 09:16:13,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:16:13,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 09:16:13,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:16:13,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-22 09:16:13,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:16:13,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 69 transitions. [2020-06-22 09:16:13,376 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:16:13,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2020-06-22 09:16:13,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 09:16:13,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 09:16:13,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 09:16:13,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:16:13,377 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:16:13,377 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:16:13,377 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:16:13,378 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 09:16:13,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 09:16:13,378 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:16:13,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 09:16:13,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:16:13 BasicIcfg [2020-06-22 09:16:13,384 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 09:16:13,384 INFO L168 Benchmark]: Toolchain (without parser) took 2432.73 ms. Allocated memory was 649.6 MB in the beginning and 675.3 MB in the end (delta: 25.7 MB). Free memory was 565.2 MB in the beginning and 435.0 MB in the end (delta: 130.2 MB). Peak memory consumption was 155.9 MB. Max. memory is 50.3 GB. [2020-06-22 09:16:13,386 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:16:13,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.34 ms. Allocated memory was 649.6 MB in the beginning and 675.3 MB in the end (delta: 25.7 MB). Free memory was 565.2 MB in the beginning and 641.1 MB in the end (delta: -75.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-06-22 09:16:13,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.11 ms. Allocated memory is still 675.3 MB. Free memory was 641.1 MB in the beginning and 640.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:16:13,388 INFO L168 Benchmark]: Boogie Preprocessor took 20.19 ms. Allocated memory is still 675.3 MB. Free memory was 640.0 MB in the beginning and 639.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:16:13,388 INFO L168 Benchmark]: RCFGBuilder took 221.48 ms. Allocated memory is still 675.3 MB. Free memory was 639.0 MB in the beginning and 623.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. [2020-06-22 09:16:13,389 INFO L168 Benchmark]: BlockEncodingV2 took 79.73 ms. Allocated memory is still 675.3 MB. Free memory was 623.6 MB in the beginning and 618.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 09:16:13,389 INFO L168 Benchmark]: TraceAbstraction took 161.55 ms. Allocated memory is still 675.3 MB. Free memory was 618.2 MB in the beginning and 608.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 09:16:13,390 INFO L168 Benchmark]: BuchiAutomizer took 1615.03 ms. Allocated memory is still 675.3 MB. Free memory was 608.5 MB in the beginning and 435.0 MB in the end (delta: 173.6 MB). Peak memory consumption was 173.6 MB. Max. memory is 50.3 GB. [2020-06-22 09:16:13,394 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 5 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 293.34 ms. Allocated memory was 649.6 MB in the beginning and 675.3 MB in the end (delta: 25.7 MB). Free memory was 565.2 MB in the beginning and 641.1 MB in the end (delta: -75.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.11 ms. Allocated memory is still 675.3 MB. Free memory was 641.1 MB in the beginning and 640.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.19 ms. Allocated memory is still 675.3 MB. Free memory was 640.0 MB in the beginning and 639.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 221.48 ms. Allocated memory is still 675.3 MB. Free memory was 639.0 MB in the beginning and 623.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.73 ms. Allocated memory is still 675.3 MB. Free memory was 623.6 MB in the beginning and 618.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 161.55 ms. Allocated memory is still 675.3 MB. Free memory was 618.2 MB in the beginning and 608.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1615.03 ms. Allocated memory is still 675.3 MB. Free memory was 608.5 MB in the beginning and 435.0 MB in the end (delta: 173.6 MB). Peak memory consumption was 173.6 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 39 SDslu, 28 SDs, 0 SdLazy, 50 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 09:16:07.714 ----------------------------------------------- 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 09:16:13.627 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check