YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:19:09,442 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:19:09,444 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:19:09,455 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:19:09,456 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:19:09,457 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:19:09,458 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:19:09,459 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:19:09,461 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:19:09,462 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:19:09,463 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:19:09,463 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:19:09,464 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:19:09,464 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:19:09,466 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:19:09,466 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:19:09,467 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:19:09,469 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:19:09,470 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:19:09,472 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:19:09,473 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:19:09,474 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:19:09,476 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:19:09,476 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:19:09,476 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:19:09,477 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:19:09,477 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:19:09,478 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:19:09,478 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:19:09,479 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:19:09,480 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:19:09,480 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:19:09,481 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:19:09,481 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:19:09,482 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:19:09,482 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:19:09,482 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:19:09,483 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:19:09,484 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:19:09,484 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 02:19:09,498 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:19:09,498 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:19:09,499 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:19:09,500 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:19:09,500 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:19:09,500 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:19:09,500 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:19:09,500 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:19:09,501 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:19:09,501 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:19:09,501 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:19:09,501 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:19:09,501 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:19:09,501 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:19:09,502 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:09,502 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:19:09,502 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:19:09,502 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:19:09,502 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:19:09,503 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:19:09,503 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:19:09,503 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:19:09,503 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:19:09,503 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:19:09,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:19:09,504 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:19:09,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:19:09,504 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:19:09,504 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:19:09,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:19:09,543 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:19:09,547 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:19:09,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:19:09,548 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:19:09,549 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 02:19:09,613 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/e3671e8d6e814436bfc2b2544f2ce28d/FLAG215f5ec9c [2020-06-22 02:19:09,952 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:19:09,952 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 02:19:09,959 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/e3671e8d6e814436bfc2b2544f2ce28d/FLAG215f5ec9c [2020-06-22 02:19:10,364 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/e3671e8d6e814436bfc2b2544f2ce28d [2020-06-22 02:19:10,376 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:19:10,377 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:19:10,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:19:10,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:19:10,383 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:19:10,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cba3b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10, skipping insertion in model container [2020-06-22 02:19:10,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:19:10,414 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:19:10,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:19:10,571 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:19:10,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:19:10,661 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:19:10,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10 WrapperNode [2020-06-22 02:19:10,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:19:10,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:19:10,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:19:10,663 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:19:10,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:19:10,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:19:10,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:19:10,698 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:19:10,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:19:10,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:19:10,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:19:10,715 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:19:10,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:19:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:19:10,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:19:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2020-06-22 02:19:10,787 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2020-06-22 02:19:10,925 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:19:10,925 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 02:19:10,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:19:10 BoogieIcfgContainer [2020-06-22 02:19:10,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:19:10,927 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:19:10,927 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:19:10,929 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:19:10,930 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,946 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 17 edges [2020-06-22 02:19:10,947 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:19:10,948 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:19:10,948 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:19:10,949 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:19:10,950 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:19:10,951 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:19:10,951 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:19:10,966 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:19:10,980 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 02:19:10,984 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:19:10,986 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:19:10,996 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 02:19:10,998 INFO L70 RemoveSinkStates]: Removed 4 edges and 3 locations by removing sink states [2020-06-22 02:19:11,000 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:19:11,000 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:19:11,003 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 02:19:11,003 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:19:11,003 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:19:11,004 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:19:11,004 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:19:11,004 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:19:11,004 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 10 edges [2020-06-22 02:19:11,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:19:11 BasicIcfg [2020-06-22 02:19:11,005 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:19:11,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:19:11,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:19:11,009 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:19:11,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:19:10" (1/4) ... [2020-06-22 02:19:11,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1297bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (2/4) ... [2020-06-22 02:19:11,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1297bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:19:10" (3/4) ... [2020-06-22 02:19:11,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1297bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:19:11" (4/4) ... [2020-06-22 02:19:11,013 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:19:11,023 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:19:11,031 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:19:11,048 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:19:11,076 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:19:11,077 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:19:11,077 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:19:11,078 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:19:11,078 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:19:11,078 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:19:11,078 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:19:11,078 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:19:11,078 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:19:11,095 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-06-22 02:19:11,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:19:11,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-06-22 02:19:11,160 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:19:11,161 INFO L451 ceAbstractionStarter]: At program point L22(line 22) the Hoare annotation is: true [2020-06-22 02:19:11,161 INFO L451 ceAbstractionStarter]: At program point L17(line 17) the Hoare annotation is: true [2020-06-22 02:19:11,161 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-06-22 02:19:11,161 INFO L448 ceAbstractionStarter]: For program point r1EXIT(lines 13 19) no Hoare annotation was computed. [2020-06-22 02:19:11,161 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-06-22 02:19:11,162 INFO L451 ceAbstractionStarter]: At program point r1ENTRY(lines 13 19) the Hoare annotation is: true [2020-06-22 02:19:11,162 INFO L448 ceAbstractionStarter]: For program point r1FINAL(lines 13 19) no Hoare annotation was computed. [2020-06-22 02:19:11,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:19:11 BasicIcfg [2020-06-22 02:19:11,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:19:11,166 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:19:11,166 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:19:11,169 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:19:11,170 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,171 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:19:10" (1/5) ... [2020-06-22 02:19:11,171 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6855d279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,171 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,171 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (2/5) ... [2020-06-22 02:19:11,172 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6855d279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,172 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,172 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:19:10" (3/5) ... [2020-06-22 02:19:11,173 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6855d279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,173 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,173 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:19:11" (4/5) ... [2020-06-22 02:19:11,173 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6855d279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,173 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,174 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:19:11" (5/5) ... [2020-06-22 02:19:11,175 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:19:11,204 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:19:11,204 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:19:11,204 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:19:11,204 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:19:11,204 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:19:11,204 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:19:11,205 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:19:11,205 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:19:11,205 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:19:11,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-06-22 02:19:11,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:19:11,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:19:11,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:19:11,236 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 02:19:11,236 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:19:11,237 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:19:11,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-06-22 02:19:11,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:19:11,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:19:11,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:19:11,238 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 02:19:11,238 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:19:11,244 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [52] ULTIMATE.startENTRY-->L22: Formula: (and (= v_ULTIMATE.start_rev_~ls_5 |v_ULTIMATE.start_rev_#in~ls_2|) (= |v_ULTIMATE.start_rev_#in~ls_2| v_ULTIMATE.start_main_~ls~0_6) (<= 0 v_ULTIMATE.start_main_~ls~0_6)) InVars {} OutVars{ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_5, ULTIMATE.start_rev_#res=|v_ULTIMATE.start_rev_#res_5|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_rev_#in~ls=|v_ULTIMATE.start_rev_#in~ls_2|, ULTIMATE.start_rev_#t~ret1=|v_ULTIMATE.start_rev_#t~ret1_8|, ULTIMATE.start_main_~ls~0=v_ULTIMATE.start_main_~ls~0_6, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|} AuxVars[] AssignedVars[ULTIMATE.start_rev_~ls, ULTIMATE.start_rev_#res, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_rev_#in~ls, ULTIMATE.start_rev_#t~ret1, ULTIMATE.start_main_~ls~0, ULTIMATE.start_main_#t~ret3] 5#L22true [39] L22-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_1| v_ULTIMATE.start_rev_~ls_4) (= |v_r1_#in~aInParam_1| 0)) InVars {ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_1|, r1_#in~ls=|v_r1_#in~lsInParam_1|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 10#r1ENTRYtrue [2020-06-22 02:19:11,244 INFO L796 eck$LassoCheckResult]: Loop: 10#r1ENTRYtrue [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 4#L14true [48] L14-->L17: Formula: (< v_r1_~ls_3 0) InVars {r1_~ls=v_r1_~ls_3} OutVars{r1_~ls=v_r1_~ls_3} AuxVars[] AssignedVars[] 7#L17true [30] L17-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_2| (+ v_r1_~ls_5 (- 1))) (= |v_r1_#in~aInParam_2| (+ v_r1_~a_4 v_r1_~ls_5 1))) InVars {r1_~ls=v_r1_~ls_5, r1_~a=v_r1_~a_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_2|, r1_#in~ls=|v_r1_#in~lsInParam_2|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 10#r1ENTRYtrue [2020-06-22 02:19:11,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,250 INFO L82 PathProgramCache]: Analyzing trace with hash 2612, now seen corresponding path program 1 times [2020-06-22 02:19:11,252 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:11,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,329 INFO L82 PathProgramCache]: Analyzing trace with hash 63022, now seen corresponding path program 1 times [2020-06-22 02:19:11,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:11,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,344 INFO L82 PathProgramCache]: Analyzing trace with hash 77847323, now seen corresponding path program 1 times [2020-06-22 02:19:11,344 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:11,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:19:11,415 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 02:19:11,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 02:19:11,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 02:19:11,505 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:19:11,506 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:19:11,506 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:19:11,506 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:19:11,507 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:19:11,507 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:11,507 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:19:11,507 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:19:11,507 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:19:11,507 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:19:11,508 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:19:11,525 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 02:19:11,531 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 02:19:11,534 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 02:19:11,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:19:11,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:19:11,613 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:19:11,613 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 02:19:11,620 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:11,620 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:11,629 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:11,629 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_~a=0} Honda state: {r1_~a=0} 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 02:19:11,658 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:11,659 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:11,663 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:11,663 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#res=0} Honda state: {r1_#res=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 02:19:11,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:11,691 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 02:19:11,726 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:19:11,727 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:11,758 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:11,758 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#in~a=0, r1_#in~ls=-3} Honda state: {r1_#in~a=0, r1_#in~ls=-3} Generalized eigenvectors: [{r1_#in~a=-5, r1_#in~ls=-1}, {r1_#in~a=-1, r1_#in~ls=0}, {r1_#in~a=4, r1_#in~ls=0}] Lambdas: [1, 5, 1] Nus: [1, 1] 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 02:19:11,787 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:11,787 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:11,791 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:11,791 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_~ls=0} Honda state: {r1_~ls=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:11,819 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:11,819 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:11,823 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:11,823 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#t~ret0=0} Honda state: {r1_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 02:19:11,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 02:19:11,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 02:19:11,863 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 5 states. [2020-06-22 02:19:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:19:11,929 INFO L93 Difference]: Finished difference Result 18 states and 24 transitions. [2020-06-22 02:19:11,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 02:19:11,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2020-06-22 02:19:11,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 02:19:11,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 9 states and 10 transitions. [2020-06-22 02:19:11,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 02:19:11,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 02:19:11,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2020-06-22 02:19:11,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:19:11,944 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-06-22 02:19:11,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2020-06-22 02:19:11,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2020-06-22 02:19:11,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 02:19:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2020-06-22 02:19:11,974 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-06-22 02:19:11,974 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-06-22 02:19:11,974 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:19:11,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2020-06-22 02:19:11,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:19:11,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:19:11,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:19:11,976 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 02:19:11,976 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:19:11,976 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [52] ULTIMATE.startENTRY-->L22: Formula: (and (= v_ULTIMATE.start_rev_~ls_5 |v_ULTIMATE.start_rev_#in~ls_2|) (= |v_ULTIMATE.start_rev_#in~ls_2| v_ULTIMATE.start_main_~ls~0_6) (<= 0 v_ULTIMATE.start_main_~ls~0_6)) InVars {} OutVars{ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_5, ULTIMATE.start_rev_#res=|v_ULTIMATE.start_rev_#res_5|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_rev_#in~ls=|v_ULTIMATE.start_rev_#in~ls_2|, ULTIMATE.start_rev_#t~ret1=|v_ULTIMATE.start_rev_#t~ret1_8|, ULTIMATE.start_main_~ls~0=v_ULTIMATE.start_main_~ls~0_6, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|} AuxVars[] AssignedVars[ULTIMATE.start_rev_~ls, ULTIMATE.start_rev_#res, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_rev_#in~ls, ULTIMATE.start_rev_#t~ret1, ULTIMATE.start_main_~ls~0, ULTIMATE.start_main_#t~ret3] 42#L22 [39] L22-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_1| v_ULTIMATE.start_rev_~ls_4) (= |v_r1_#in~aInParam_1| 0)) InVars {ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_1|, r1_#in~ls=|v_r1_#in~lsInParam_1|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 45#r1ENTRY [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 43#L14 [47] L14-->L17: Formula: (> v_r1_~ls_3 0) InVars {r1_~ls=v_r1_~ls_3} OutVars{r1_~ls=v_r1_~ls_3} AuxVars[] AssignedVars[] 44#L17 [2020-06-22 02:19:11,977 INFO L796 eck$LassoCheckResult]: Loop: 44#L17 [30] L17-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_2| (+ v_r1_~ls_5 (- 1))) (= |v_r1_#in~aInParam_2| (+ v_r1_~a_4 v_r1_~ls_5 1))) InVars {r1_~ls=v_r1_~ls_5, r1_~a=v_r1_~a_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_2|, r1_#in~ls=|v_r1_#in~lsInParam_2|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 46#r1ENTRY [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 47#L14 [48] L14-->L17: Formula: (< v_r1_~ls_3 0) InVars {r1_~ls=v_r1_~ls_3} OutVars{r1_~ls=v_r1_~ls_3} AuxVars[] AssignedVars[] 44#L17 [2020-06-22 02:19:11,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,977 INFO L82 PathProgramCache]: Analyzing trace with hash 2511202, now seen corresponding path program 1 times [2020-06-22 02:19:11,977 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:11,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,988 INFO L82 PathProgramCache]: Analyzing trace with hash 59692, now seen corresponding path program 2 times [2020-06-22 02:19:11,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:11,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1796804651, now seen corresponding path program 1 times [2020-06-22 02:19:11,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,999 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:19:11,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:19:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 02:19:12,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 02:19:12,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 02:19:12,097 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:19:12,097 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:19:12,097 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:19:12,097 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:19:12,097 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:19:12,097 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:12,098 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:19:12,098 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:19:12,098 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:19:12,098 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:19:12,098 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:19:12,099 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 02:19:12,130 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 02:19:12,133 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 02:19:12,186 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:19:12,186 INFO L412 LassoAnalysis]: Checking for nontermination... 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 02:19:12,189 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:12,190 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 02:19:12,228 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:19:12,228 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:13,059 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:13,060 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#in~ls=-8, r1_#in~a=-8, r1_~ls=-8, r1_~a=-8} Honda state: {r1_#in~ls=-8, r1_#in~a=-8, r1_~ls=-8, r1_~a=-8} Generalized eigenvectors: [{r1_#in~ls=-1, r1_#in~a=-6, r1_~ls=-1, r1_~a=-6}, {r1_#in~ls=0, r1_#in~a=-1, r1_~ls=0, r1_~a=-1}, {r1_#in~ls=0, r1_#in~a=0, r1_~ls=0, r1_~a=0}] Lambdas: [1, 1, 11] Nus: [1, 0] 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 02:19:13,092 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:13,092 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:13,096 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:13,096 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#t~ret0=0} Honda state: {r1_#t~ret0=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 02:19:13,125 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:13,126 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:13,129 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:13,130 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#res=0} Honda state: {r1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 02:19:13,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 02:19:13,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-06-22 02:19:13,155 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 5 states. [2020-06-22 02:19:13,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:19:13,184 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2020-06-22 02:19:13,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 02:19:13,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 8 transitions. [2020-06-22 02:19:13,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:19:13,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 8 transitions. [2020-06-22 02:19:13,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 02:19:13,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 02:19:13,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 8 transitions. [2020-06-22 02:19:13,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:19:13,187 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-06-22 02:19:13,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 8 transitions. [2020-06-22 02:19:13,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 5. [2020-06-22 02:19:13,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 02:19:13,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2020-06-22 02:19:13,189 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-06-22 02:19:13,189 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-06-22 02:19:13,189 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 02:19:13,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2020-06-22 02:19:13,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:19:13,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:19:13,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:19:13,190 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 02:19:13,190 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:19:13,190 INFO L794 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRY [52] ULTIMATE.startENTRY-->L22: Formula: (and (= v_ULTIMATE.start_rev_~ls_5 |v_ULTIMATE.start_rev_#in~ls_2|) (= |v_ULTIMATE.start_rev_#in~ls_2| v_ULTIMATE.start_main_~ls~0_6) (<= 0 v_ULTIMATE.start_main_~ls~0_6)) InVars {} OutVars{ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_5, ULTIMATE.start_rev_#res=|v_ULTIMATE.start_rev_#res_5|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_rev_#in~ls=|v_ULTIMATE.start_rev_#in~ls_2|, ULTIMATE.start_rev_#t~ret1=|v_ULTIMATE.start_rev_#t~ret1_8|, ULTIMATE.start_main_~ls~0=v_ULTIMATE.start_main_~ls~0_6, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|} AuxVars[] AssignedVars[ULTIMATE.start_rev_~ls, ULTIMATE.start_rev_#res, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_rev_#in~ls, ULTIMATE.start_rev_#t~ret1, ULTIMATE.start_main_~ls~0, ULTIMATE.start_main_#t~ret3] 71#L22 [39] L22-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_1| v_ULTIMATE.start_rev_~ls_4) (= |v_r1_#in~aInParam_1| 0)) InVars {ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_1|, r1_#in~ls=|v_r1_#in~lsInParam_1|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 74#r1ENTRY [2020-06-22 02:19:13,191 INFO L796 eck$LassoCheckResult]: Loop: 74#r1ENTRY [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 72#L14 [47] L14-->L17: Formula: (> v_r1_~ls_3 0) InVars {r1_~ls=v_r1_~ls_3} OutVars{r1_~ls=v_r1_~ls_3} AuxVars[] AssignedVars[] 73#L17 [30] L17-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_2| (+ v_r1_~ls_5 (- 1))) (= |v_r1_#in~aInParam_2| (+ v_r1_~a_4 v_r1_~ls_5 1))) InVars {r1_~ls=v_r1_~ls_5, r1_~a=v_r1_~a_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_2|, r1_#in~ls=|v_r1_#in~lsInParam_2|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 74#r1ENTRY [2020-06-22 02:19:13,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:13,191 INFO L82 PathProgramCache]: Analyzing trace with hash 2612, now seen corresponding path program 2 times [2020-06-22 02:19:13,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:13,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:13,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:13,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:13,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:13,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:13,200 INFO L82 PathProgramCache]: Analyzing trace with hash 62991, now seen corresponding path program 1 times [2020-06-22 02:19:13,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:13,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:13,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:13,201 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:19:13,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:13,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:13,208 INFO L82 PathProgramCache]: Analyzing trace with hash 77847292, now seen corresponding path program 1 times [2020-06-22 02:19:13,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:13,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:13,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:13,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:13,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:13,279 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:19:13,280 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:19:13,280 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:19:13,280 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:19:13,280 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:19:13,280 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:13,280 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:19:13,280 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:19:13,280 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:19:13,281 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:19:13,281 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:19:13,282 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 02:19:13,284 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 02:19:13,288 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 02:19:13,300 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 02:19:13,303 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 02:19:13,358 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:19:13,358 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:13,364 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:13,364 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:13,368 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:13,368 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_~a=0} Honda state: {r1_~a=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 02:19:13,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:13,397 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:13,401 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:13,401 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#t~ret0=0} Honda state: {r1_#t~ret0=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 02:19:13,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:13,430 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 02:19:13,463 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:19:13,463 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:13,496 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:19:13,498 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:19:13,498 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:19:13,498 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:19:13,498 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:19:13,499 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:19:13,499 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:19:13,499 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:19:13,499 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:19:13,499 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:19:13,499 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:19:13,499 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:19:13,501 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 02:19:13,506 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 02:19:13,514 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 02:19:13,517 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 02:19:13,519 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 02:19:13,585 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:19:13,590 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:19:13,592 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 02:19:13,594 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:19:13,594 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:19:13,595 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:19:13,595 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:19:13,595 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:19:13,597 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:19:13,598 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:19:13,600 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:19:13,601 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 02:19:13,601 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:19:13,602 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:19:13,602 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:19:13,602 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:19:13,602 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:19:13,603 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:19:13,603 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:19:13,610 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:19:13,616 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:19:13,616 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:19:13,619 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:19:13,619 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:19:13,619 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:19:13,620 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(r1_#in~ls) = 1*r1_#in~ls Supporting invariants [] [2020-06-22 02:19:13,621 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:19:13,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:19:13,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:19:13,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:19:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:19:13,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 02:19:13,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:19:13,706 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 02:19:13,718 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:19:13,720 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 02:19:13,721 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 5 transitions. cyclomatic complexity: 1 Second operand 4 states. [2020-06-22 02:19:13,775 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 5 transitions. cyclomatic complexity: 1. Second operand 4 states. Result 12 states and 12 transitions. Complement of second has 11 states. [2020-06-22 02:19:13,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 02:19:13,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 02:19:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2020-06-22 02:19:13,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 02:19:13,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:19:13,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 02:19:13,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:19:13,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 02:19:13,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:19:13,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2020-06-22 02:19:13,788 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:19:13,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-06-22 02:19:13,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:19:13,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:19:13,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:19:13,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:19:13,789 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:19:13,789 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:19:13,789 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:19:13,789 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 02:19:13,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 02:19:13,789 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:19:13,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 02:19:13,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:19:13 BasicIcfg [2020-06-22 02:19:13,796 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:19:13,796 INFO L168 Benchmark]: Toolchain (without parser) took 3419.54 ms. Allocated memory was 649.6 MB in the beginning and 672.7 MB in the end (delta: 23.1 MB). Free memory was 558.8 MB in the beginning and 415.1 MB in the end (delta: 143.7 MB). Peak memory consumption was 166.8 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:13,798 INFO L168 Benchmark]: CDTParser took 0.16 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 02:19:13,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.04 ms. Allocated memory was 649.6 MB in the beginning and 672.7 MB in the end (delta: 23.1 MB). Free memory was 558.8 MB in the beginning and 639.2 MB in the end (delta: -80.4 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:13,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.61 ms. Allocated memory is still 672.7 MB. Free memory was 639.2 MB in the beginning and 636.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:13,799 INFO L168 Benchmark]: Boogie Preprocessor took 16.72 ms. Allocated memory is still 672.7 MB. Free memory is still 636.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 02:19:13,800 INFO L168 Benchmark]: RCFGBuilder took 212.01 ms. Allocated memory is still 672.7 MB. Free memory was 636.5 MB in the beginning and 620.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:13,800 INFO L168 Benchmark]: BlockEncodingV2 took 77.96 ms. Allocated memory is still 672.7 MB. Free memory was 620.5 MB in the beginning and 614.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:13,801 INFO L168 Benchmark]: TraceAbstraction took 159.51 ms. Allocated memory is still 672.7 MB. Free memory was 612.6 MB in the beginning and 603.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:13,801 INFO L168 Benchmark]: BuchiAutomizer took 2629.67 ms. Allocated memory is still 672.7 MB. Free memory was 603.2 MB in the beginning and 415.1 MB in the end (delta: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:13,805 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 17 edges - StatisticsResult: Encoded RCFG 8 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 284.04 ms. Allocated memory was 649.6 MB in the beginning and 672.7 MB in the end (delta: 23.1 MB). Free memory was 558.8 MB in the beginning and 639.2 MB in the end (delta: -80.4 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.61 ms. Allocated memory is still 672.7 MB. Free memory was 639.2 MB in the beginning and 636.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.72 ms. Allocated memory is still 672.7 MB. Free memory is still 636.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 212.01 ms. Allocated memory is still 672.7 MB. Free memory was 636.5 MB in the beginning and 620.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.96 ms. Allocated memory is still 672.7 MB. Free memory was 620.5 MB in the beginning and 614.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 159.51 ms. Allocated memory is still 672.7 MB. Free memory was 612.6 MB in the beginning and 603.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2629.67 ms. Allocated memory is still 672.7 MB. Free memory was 603.2 MB in the beginning and 415.1 MB in the end (delta: 188.1 MB). Peak memory consumption was 188.1 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function \old(ls) and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 21 SDslu, 30 SDs, 0 SdLazy, 34 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf92 smp100 dnf100 smp100 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 02:19:07.145 ----------------------------------------------- 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 02:19:14.036 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check