YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:01:54,872 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:01:54,874 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:01:54,887 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:01:54,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:01:54,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:01:54,890 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:01:54,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:01:54,893 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:01:54,894 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:01:54,894 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:01:54,895 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:01:54,896 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:01:54,897 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:01:54,898 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:01:54,898 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:01:54,899 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:01:54,901 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:01:54,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:01:54,904 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:01:54,905 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:01:54,906 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:01:54,908 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:01:54,908 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:01:54,909 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:01:54,910 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:01:54,910 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:01:54,911 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:01:54,911 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:01:54,912 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:01:54,913 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:01:54,913 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:01:54,914 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:01:54,914 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:01:54,915 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:01:54,915 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:01:54,915 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:01:54,916 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:01:54,917 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:01:54,917 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 05:01:54,933 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:01:54,933 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:01:54,934 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:01:54,934 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:01:54,934 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:01:54,935 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:01:54,935 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:01:54,935 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:01:54,935 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:01:54,935 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:01:54,935 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:01:54,936 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:01:54,936 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:01:54,936 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:01:54,936 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:54,936 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:01:54,937 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:01:54,937 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:01:54,937 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:01:54,937 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:01:54,937 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:01:54,938 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:01:54,938 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:01:54,938 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:01:54,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:01:54,938 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:01:54,939 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:01:54,939 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:01:54,939 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:01:54,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:01:54,981 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:01:54,984 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:01:54,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:01:54,986 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:01:54,987 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:01:55,058 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/f4b7fd7d0d4f411aacd07645051e5345/FLAG23eac61fc [2020-06-22 05:01:55,383 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:01:55,384 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 05:01:55,390 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/f4b7fd7d0d4f411aacd07645051e5345/FLAG23eac61fc [2020-06-22 05:01:55,792 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/f4b7fd7d0d4f411aacd07645051e5345 [2020-06-22 05:01:55,804 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:01:55,805 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:01:55,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:01:55,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:01:55,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:01:55,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:01:55" (1/1) ... [2020-06-22 05:01:55,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6985aff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:55, skipping insertion in model container [2020-06-22 05:01:55,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:01:55" (1/1) ... [2020-06-22 05:01:55,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:01:55,839 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:01:55,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:01:55,998 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:01:56,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:01:56,083 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:01:56,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56 WrapperNode [2020-06-22 05:01:56,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:01:56,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:01:56,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:01:56,085 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:01:56,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:01:56,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:01:56,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:01:56,121 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:01:56,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:01:56,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:01:56,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:01:56,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:01:56,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (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 05:01:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:01:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:01:56,360 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:01:56,360 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 05:01:56,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:01:56 BoogieIcfgContainer [2020-06-22 05:01:56,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:01:56,362 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:01:56,362 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:01:56,364 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:01:56,365 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:01:56" (1/1) ... [2020-06-22 05:01:56,381 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 13 edges [2020-06-22 05:01:56,383 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:01:56,383 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:01:56,384 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:01:56,384 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:01:56,386 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:01:56,387 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:01:56,387 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:01:56,402 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:01:56,410 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 05:01:56,416 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 05:01:56,418 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:01:56,460 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 05:01:56,463 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 05:01:56,464 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:01:56,465 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:01:56,471 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 05:01:56,471 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:01:56,471 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:01:56,472 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:01:56,472 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:01:56,472 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:01:56,472 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 05:01:56,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:01:56 BasicIcfg [2020-06-22 05:01:56,473 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:01:56,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:01:56,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:01:56,478 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:01:56,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:01:55" (1/4) ... [2020-06-22 05:01:56,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3634d21f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:01:56, skipping insertion in model container [2020-06-22 05:01:56,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (2/4) ... [2020-06-22 05:01:56,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3634d21f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:01:56, skipping insertion in model container [2020-06-22 05:01:56,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:01:56" (3/4) ... [2020-06-22 05:01:56,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3634d21f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:01:56, skipping insertion in model container [2020-06-22 05:01:56,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:01:56" (4/4) ... [2020-06-22 05:01:56,482 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:01:56,493 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:01:56,501 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:01:56,519 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:01:56,547 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:01:56,548 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:01:56,548 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:01:56,548 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:01:56,549 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:01:56,549 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:01:56,549 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:01:56,549 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:01:56,549 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:01:56,564 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 05:01:56,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:01:56,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 05:01:56,626 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:01:56,626 INFO L451 ceAbstractionStarter]: At program point L24-2(lines 24 26) the Hoare annotation is: true [2020-06-22 05:01:56,626 INFO L451 ceAbstractionStarter]: At program point L22-2(lines 22 28) the Hoare annotation is: true [2020-06-22 05:01:56,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:01:56 BasicIcfg [2020-06-22 05:01:56,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:01:56,635 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:01:56,635 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:01:56,638 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:01:56,639 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:01:56,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:01:55" (1/5) ... [2020-06-22 05:01:56,640 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e884314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:01:56, skipping insertion in model container [2020-06-22 05:01:56,640 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:01:56,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:01:56" (2/5) ... [2020-06-22 05:01:56,641 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e884314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:01:56, skipping insertion in model container [2020-06-22 05:01:56,641 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:01:56,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:01:56" (3/5) ... [2020-06-22 05:01:56,641 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e884314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:01:56, skipping insertion in model container [2020-06-22 05:01:56,642 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:01:56,642 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:01:56" (4/5) ... [2020-06-22 05:01:56,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e884314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:01:56, skipping insertion in model container [2020-06-22 05:01:56,642 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:01:56,642 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:01:56" (5/5) ... [2020-06-22 05:01:56,644 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:01:56,670 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:01:56,671 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:01:56,671 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:01:56,671 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:01:56,671 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:01:56,671 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:01:56,671 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:01:56,672 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:01:56,672 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:01:56,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 05:01:56,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:01:56,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:01:56,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:01:56,697 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:01:56,697 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:01:56,697 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:01:56,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 05:01:56,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:01:56,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:01:56,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:01:56,698 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:01:56,699 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:01:56,703 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [56] ULTIMATE.startENTRY-->L22-2: Formula: (and (= 0 v_ULTIMATE.start_main_~i~0_15) (<= 1 v_ULTIMATE.start_main_~k~0_9)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 5#L22-2true [2020-06-22 05:01:56,704 INFO L796 eck$LassoCheckResult]: Loop: 5#L22-2true [49] L22-2-->L24-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) (= v_ULTIMATE.start_main_~j~0_6 0)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 4#L24-2true [54] L24-2-->L22-2: Formula: (and (= (+ v_ULTIMATE.start_main_~i~0_14 1) v_ULTIMATE.start_main_~i~0_13) (< v_ULTIMATE.start_main_~i~0_14 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 5#L22-2true [2020-06-22 05:01:56,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:56,710 INFO L82 PathProgramCache]: Analyzing trace with hash 87, now seen corresponding path program 1 times [2020-06-22 05:01:56,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:56,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:56,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:56,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:01:56,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:56,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:56,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2534, now seen corresponding path program 1 times [2020-06-22 05:01:56,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:56,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:56,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:56,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:01:56,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:56,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:56,792 INFO L82 PathProgramCache]: Analyzing trace with hash 85180, now seen corresponding path program 1 times [2020-06-22 05:01:56,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:56,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:56,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:56,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:01:56,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:01:56,852 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 05:01:56,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 05:01:56,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 05:01:56,901 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:01:56,902 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:01:56,902 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:01:56,902 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:01:56,903 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:01:56,903 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:56,903 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:01:56,903 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:01:56,903 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:01:56,903 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:01:56,904 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:01:56,922 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 05:01:56,930 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 05:01:56,934 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 05:01:57,022 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:01:57,023 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 05:01:57,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:57,031 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:57,063 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:01:57,063 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 05:01:57,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:57,070 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:57,097 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:01:57,097 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 05:01:57,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:57,102 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 05:01:57,133 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:01:57,134 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:57,277 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:01:57,280 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:01:57,280 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:01:57,280 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:01:57,280 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:01:57,280 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:01:57,280 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:01:57,280 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:01:57,281 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:01:57,281 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:01:57,281 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:01:57,281 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:01:57,283 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 05:01:57,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:01:57,290 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 05:01:57,382 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:01:57,388 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:01:57,390 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 05:01:57,391 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:57,392 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:57,392 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:57,392 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:57,397 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:01:57,397 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:01:57,403 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:57,404 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 05:01:57,404 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:57,404 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:57,405 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:57,405 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:57,407 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:01:57,408 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:01:57,416 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:57,416 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 05:01:57,417 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:57,418 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:01:57,418 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:57,418 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:57,418 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:57,420 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:01:57,420 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:01:57,429 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:01:57,434 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:01:57,434 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:01:57,437 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:01:57,437 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:01:57,437 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:01:57,437 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 05:01:57,439 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:01:57,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:01:57,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:01:57,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:01:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:01:57,488 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:01:57,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:01:57,502 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 05:01:57,531 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:01:57,536 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 05:01:57,538 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 05:01:57,594 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 10 states and 15 transitions. Complement of second has 7 states. [2020-06-22 05:01:57,595 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 05:01:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:01:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-06-22 05:01:57,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 05:01:57,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:57,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 05:01:57,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:57,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 05:01:57,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:57,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 15 transitions. [2020-06-22 05:01:57,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:01:57,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 15 transitions. [2020-06-22 05:01:57,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 05:01:57,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 05:01:57,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2020-06-22 05:01:57,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:01:57,615 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 05:01:57,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2020-06-22 05:01:57,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-06-22 05:01:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 05:01:57,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2020-06-22 05:01:57,644 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-06-22 05:01:57,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 05:01:57,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 05:01:57,647 INFO L87 Difference]: Start difference. First operand 9 states and 14 transitions. Second operand 4 states. [2020-06-22 05:01:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 05:01:57,670 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2020-06-22 05:01:57,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 05:01:57,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2020-06-22 05:01:57,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:01:57,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 5 states and 6 transitions. [2020-06-22 05:01:57,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 05:01:57,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 05:01:57,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2020-06-22 05:01:57,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:01:57,674 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-06-22 05:01:57,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2020-06-22 05:01:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-06-22 05:01:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 05:01:57,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 05:01:57,675 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 05:01:57,675 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 05:01:57,675 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:01:57,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2020-06-22 05:01:57,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 05:01:57,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:01:57,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:01:57,676 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:01:57,676 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 05:01:57,676 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY [56] ULTIMATE.startENTRY-->L22-2: Formula: (and (= 0 v_ULTIMATE.start_main_~i~0_15) (<= 1 v_ULTIMATE.start_main_~k~0_9)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 76#L22-2 [2020-06-22 05:01:57,677 INFO L796 eck$LassoCheckResult]: Loop: 76#L22-2 [49] L22-2-->L24-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) (= v_ULTIMATE.start_main_~j~0_6 0)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 77#L24-2 [41] L24-2-->L24-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_9 v_ULTIMATE.start_main_~i~0_10) (= v_ULTIMATE.start_main_~j~0_8 (+ v_ULTIMATE.start_main_~k~0_7 v_ULTIMATE.start_main_~j~0_9))) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 78#L24-2 [54] L24-2-->L22-2: Formula: (and (= (+ v_ULTIMATE.start_main_~i~0_14 1) v_ULTIMATE.start_main_~i~0_13) (< v_ULTIMATE.start_main_~i~0_14 v_ULTIMATE.start_main_~j~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 76#L22-2 [2020-06-22 05:01:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:57,677 INFO L82 PathProgramCache]: Analyzing trace with hash 87, now seen corresponding path program 2 times [2020-06-22 05:01:57,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:57,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:57,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:57,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:01:57,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:57,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:57,684 INFO L82 PathProgramCache]: Analyzing trace with hash 78205, now seen corresponding path program 1 times [2020-06-22 05:01:57,684 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:57,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:57,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:57,685 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:01:57,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:57,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:57,695 INFO L82 PathProgramCache]: Analyzing trace with hash 2640231, now seen corresponding path program 1 times [2020-06-22 05:01:57,695 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:57,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:57,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:57,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:01:57,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:57,730 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:01:57,730 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:01:57,730 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:01:57,730 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:01:57,731 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:01:57,731 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:57,731 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:01:57,731 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:01:57,731 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:01:57,731 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:01:57,731 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:01:57,733 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 05:01:57,736 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 05:01:57,739 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 05:01:57,816 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:01:57,817 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 05:01:57,823 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:57,823 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:57,853 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:01:57,853 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) [2020-06-22 05:01:57,859 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:57,859 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:57,887 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:01:57,887 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:57,893 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:57,893 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:57,926 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:01:57,926 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:58,037 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:01:58,040 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:01:58,040 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:01:58,040 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:01:58,040 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:01:58,040 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:01:58,040 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:01:58,041 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:01:58,041 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:01:58,041 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:01:58,042 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:01:58,042 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:01:58,043 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 05:01:58,048 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 05:01:58,051 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 05:01:58,118 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:01:58,118 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:01:58,118 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 05:01:58,119 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:58,119 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:58,120 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:58,120 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:58,122 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:01:58,122 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:01:58,126 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:58,126 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 05:01:58,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:58,127 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:58,127 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:58,127 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:58,129 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:01:58,129 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:01:58,134 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:58,135 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 05:01:58,136 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:58,136 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:01:58,136 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:58,137 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:58,137 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:58,138 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:01:58,138 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:01:58,144 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:01:58,151 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:01:58,151 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 05:01:58,152 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:01:58,152 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:01:58,152 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:01:58,152 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 05:01:58,153 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:01:58,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:01:58,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:01:58,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:01:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:01:58,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:01:58,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:01:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-06-22 05:01:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:01:58,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:01:58,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:01:58,249 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 05:01:58,250 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 05:01:58,250 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-06-22 05:01:58,265 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-06-22 05:01:58,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 05:01:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:01:58,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 05:01:58,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 05:01:58,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:58,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 05:01:58,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:58,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 05:01:58,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:58,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-06-22 05:01:58,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:01:58,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 05:01:58,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 05:01:58,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 05:01:58,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-06-22 05:01:58,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:01:58,271 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 05:01:58,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-06-22 05:01:58,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-06-22 05:01:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 05:01:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-06-22 05:01:58,273 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 05:01:58,273 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-06-22 05:01:58,273 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:01:58,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-06-22 05:01:58,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 05:01:58,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:01:58,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:01:58,275 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:01:58,275 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 05:01:58,275 INFO L794 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY [56] ULTIMATE.startENTRY-->L22-2: Formula: (and (= 0 v_ULTIMATE.start_main_~i~0_15) (<= 1 v_ULTIMATE.start_main_~k~0_9)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 128#L22-2 [49] L22-2-->L24-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) (= v_ULTIMATE.start_main_~j~0_6 0)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 129#L24-2 [2020-06-22 05:01:58,275 INFO L796 eck$LassoCheckResult]: Loop: 129#L24-2 [41] L24-2-->L24-2: Formula: (and (<= v_ULTIMATE.start_main_~j~0_9 v_ULTIMATE.start_main_~i~0_10) (= v_ULTIMATE.start_main_~j~0_8 (+ v_ULTIMATE.start_main_~k~0_7 v_ULTIMATE.start_main_~j~0_9))) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 129#L24-2 [2020-06-22 05:01:58,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:58,276 INFO L82 PathProgramCache]: Analyzing trace with hash 2746, now seen corresponding path program 1 times [2020-06-22 05:01:58,276 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:58,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:58,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:58,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:01:58,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:58,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:58,283 INFO L82 PathProgramCache]: Analyzing trace with hash 72, now seen corresponding path program 1 times [2020-06-22 05:01:58,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:58,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:58,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:58,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:01:58,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:58,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:58,290 INFO L82 PathProgramCache]: Analyzing trace with hash 85167, now seen corresponding path program 1 times [2020-06-22 05:01:58,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:01:58,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:01:58,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:58,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:01:58,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:01:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:01:58,337 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:01:58,337 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:01:58,338 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:01:58,338 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:01:58,338 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:01:58,338 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:58,338 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:01:58,339 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:01:58,339 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 05:01:58,339 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:01:58,339 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:01:58,341 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 05:01:58,344 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 05:01:58,348 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 05:01:58,350 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 05:01:58,354 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 05:01:58,369 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 05:01:58,378 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 05:01:58,380 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 05:01:58,451 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:01:58,451 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:58,455 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:58,455 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:58,459 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:01:58,459 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 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 05:01:58,487 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:58,487 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:58,491 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:01:58,491 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 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 05:01:58,519 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:58,519 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:58,522 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:01:58,523 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:58,549 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:58,549 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:58,576 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:01:58,576 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:58,581 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:01:58,581 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:01:58,615 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:01:58,615 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:01:59,448 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:01:59,451 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:01:59,451 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:01:59,451 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:01:59,451 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:01:59,451 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:01:59,451 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:01:59,452 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:01:59,452 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:01:59,452 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 05:01:59,452 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:01:59,452 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:01:59,454 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 05:01:59,457 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 05:01:59,459 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 05:01:59,460 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 05:01:59,467 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 05:01:59,469 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 05:01:59,472 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 05:01:59,486 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 05:01:59,583 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:01:59,584 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:01:59,584 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 05:01:59,585 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:59,585 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:01:59,585 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:59,585 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:59,586 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:59,586 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:01:59,586 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:01:59,587 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:59,587 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 05:01:59,588 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:59,588 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:01:59,588 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:59,588 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:59,589 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:59,589 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:01:59,589 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:01:59,590 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:59,590 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 05:01:59,591 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:59,591 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:01:59,591 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:59,591 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:59,591 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:59,592 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:01:59,592 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:01:59,592 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:59,593 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 05:01:59,593 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:59,593 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:01:59,593 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:59,593 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:59,594 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:59,594 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:01:59,594 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:01:59,595 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:59,595 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 05:01:59,596 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:59,596 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:01:59,596 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:59,596 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:59,596 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:59,597 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:01:59,597 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:01:59,597 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:59,598 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 05:01:59,598 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:59,598 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:59,599 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:59,599 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:59,600 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:01:59,600 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:01:59,603 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:01:59,604 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 05:01:59,604 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:01:59,605 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:01:59,605 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:01:59,605 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:01:59,607 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:01:59,607 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:01:59,639 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:01:59,651 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 05:01:59,651 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:01:59,652 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:01:59,654 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-06-22 05:01:59,655 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:01:59,655 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~i~0 - 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~k~0 - 1 >= 0] [2020-06-22 05:01:59,659 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-06-22 05:01:59,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:01:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:01:59,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 05:01:59,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:01:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:01:59,703 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 05:01:59,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:01:59,704 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 05:01:59,714 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:01:59,715 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 05:01:59,715 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 05:01:59,756 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 7 states. [2020-06-22 05:01:59,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 05:01:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:01:59,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-06-22 05:01:59,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 05:01:59,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:59,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 05:01:59,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:59,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 05:01:59,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:01:59,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2020-06-22 05:01:59,760 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:01:59,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-06-22 05:01:59,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 05:01:59,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 05:01:59,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 05:01:59,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:01:59,761 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:01:59,761 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:01:59,761 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:01:59,761 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 05:01:59,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 05:01:59,762 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:01:59,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 05:01:59,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:01:59 BasicIcfg [2020-06-22 05:01:59,768 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:01:59,769 INFO L168 Benchmark]: Toolchain (without parser) took 3964.29 ms. Allocated memory was 649.6 MB in the beginning and 765.5 MB in the end (delta: 115.9 MB). Free memory was 558.8 MB in the beginning and 691.0 MB in the end (delta: -132.2 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:01:59,770 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 581.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 05:01:59,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.82 ms. Allocated memory was 649.6 MB in the beginning and 701.5 MB in the end (delta: 51.9 MB). Free memory was 558.8 MB in the beginning and 667.9 MB in the end (delta: -109.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-22 05:01:59,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.70 ms. Allocated memory is still 701.5 MB. Free memory was 667.9 MB in the beginning and 666.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 05:01:59,772 INFO L168 Benchmark]: Boogie Preprocessor took 19.98 ms. Allocated memory is still 701.5 MB. Free memory was 666.5 MB in the beginning and 665.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 05:01:59,772 INFO L168 Benchmark]: RCFGBuilder took 220.94 ms. Allocated memory is still 701.5 MB. Free memory was 665.2 MB in the beginning and 649.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:01:59,773 INFO L168 Benchmark]: BlockEncodingV2 took 111.09 ms. Allocated memory is still 701.5 MB. Free memory was 649.1 MB in the beginning and 643.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:01:59,773 INFO L168 Benchmark]: TraceAbstraction took 160.81 ms. Allocated memory is still 701.5 MB. Free memory was 643.7 MB in the beginning and 635.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:01:59,774 INFO L168 Benchmark]: BuchiAutomizer took 3132.85 ms. Allocated memory was 701.5 MB in the beginning and 765.5 MB in the end (delta: 64.0 MB). Free memory was 634.2 MB in the beginning and 691.0 MB in the end (delta: -56.8 MB). Peak memory consumption was 7.2 MB. Max. memory is 50.3 GB. [2020-06-22 05:01:59,779 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 13 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 581.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 277.82 ms. Allocated memory was 649.6 MB in the beginning and 701.5 MB in the end (delta: 51.9 MB). Free memory was 558.8 MB in the beginning and 667.9 MB in the end (delta: -109.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.70 ms. Allocated memory is still 701.5 MB. Free memory was 667.9 MB in the beginning and 666.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.98 ms. Allocated memory is still 701.5 MB. Free memory was 666.5 MB in the beginning and 665.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 220.94 ms. Allocated memory is still 701.5 MB. Free memory was 665.2 MB in the beginning and 649.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 111.09 ms. Allocated memory is still 701.5 MB. Free memory was 649.1 MB in the beginning and 643.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 160.81 ms. Allocated memory is still 701.5 MB. Free memory was 643.7 MB in the beginning and 635.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3132.85 ms. Allocated memory was 701.5 MB in the beginning and 765.5 MB in the end (delta: 64.0 MB). Free memory was 634.2 MB in the beginning and 691.0 MB in the end (delta: -56.8 MB). Peak memory consumption was 7.2 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: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function -1 * i and consists of 5 locations. One nondeterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function 2 * i + -2 * j + 1 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. 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 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 12 SDtfs, 25 SDslu, 0 SDs, 0 SdLazy, 35 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax164 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf92 smp100 dnf100 smp100 tf105 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 05:01:52.522 ----------------------------------------------- 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 05:02:00.014 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check