NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:51:11,646 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:51:11,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:51:11,660 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:51:11,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:51:11,661 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:51:11,662 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:51:11,664 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:51:11,665 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:51:11,666 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:51:11,667 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:51:11,667 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:51:11,668 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:51:11,669 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:51:11,670 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:51:11,670 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:51:11,671 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:51:11,673 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:51:11,675 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:51:11,677 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:51:11,678 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:51:11,679 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:51:11,681 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:51:11,681 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:51:11,681 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:51:11,682 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:51:11,682 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:51:11,683 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:51:11,683 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:51:11,684 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:51:11,685 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:51:11,686 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:51:11,686 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:51:11,687 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:51:11,687 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:51:11,687 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:51:11,688 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:51:11,688 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:51:11,689 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:51:11,689 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:51:11,704 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:51:11,705 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:51:11,706 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:51:11,706 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:51:11,706 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:51:11,706 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:51:11,707 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:51:11,707 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:51:11,707 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:51:11,707 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:51:11,707 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:51:11,707 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:51:11,708 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:51:11,708 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:51:11,708 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:51:11,708 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:51:11,708 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:51:11,709 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:51:11,709 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:51:11,709 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:51:11,709 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:51:11,709 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:51:11,710 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:51:11,710 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:51:11,710 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:51:11,710 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:51:11,710 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:51:11,710 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:51:11,711 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:51:11,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:51:11,752 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:51:11,756 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:51:11,757 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:51:11,758 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:51:11,758 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:51:11,829 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/dd11160eaf6a441bb3621c16c2a7d824/FLAG800d5c8f1 [2020-06-22 07:51:12,161 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:51:12,162 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:51:12,168 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/dd11160eaf6a441bb3621c16c2a7d824/FLAG800d5c8f1 [2020-06-22 07:51:12,579 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/dd11160eaf6a441bb3621c16c2a7d824 [2020-06-22 07:51:12,600 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:51:12,603 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:51:12,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:51:12,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:51:12,610 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:51:12,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:12,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d764cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12, skipping insertion in model container [2020-06-22 07:51:12,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:12,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:51:12,658 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:51:12,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:51:12,850 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:51:12,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:51:12,961 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:51:12,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12 WrapperNode [2020-06-22 07:51:12,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:51:12,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:51:12,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:51:12,964 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:51:12,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:12,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:13,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:51:13,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:51:13,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:51:13,009 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:51:13,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:13,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:13,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:13,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:13,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:13,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:13,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... [2020-06-22 07:51:13,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:51:13,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:51:13,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:51:13,032 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:51:13,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (1/1) ... No working directory specified, using /export/starexec/sandbox2/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 07:51:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:51:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:51:13,237 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:51:13,238 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 07:51:13,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:51:13 BoogieIcfgContainer [2020-06-22 07:51:13,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:51:13,239 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:51:13,240 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:51:13,242 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:51:13,243 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:51:13" (1/1) ... [2020-06-22 07:51:13,261 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 07:51:13,263 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:51:13,264 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:51:13,265 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:51:13,265 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:51:13,267 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:51:13,268 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:51:13,268 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:51:13,283 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:51:13,303 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 07:51:13,308 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 07:51:13,309 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:51:13,322 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 07:51:13,324 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 07:51:13,325 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:51:13,326 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:51:13,326 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:51:13,326 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:51:13,326 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 5 edges [2020-06-22 07:51:13,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:51:13 BasicIcfg [2020-06-22 07:51:13,327 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:51:13,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:51:13,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:51:13,332 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:51:13,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:51:12" (1/4) ... [2020-06-22 07:51:13,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c65684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:51:13, skipping insertion in model container [2020-06-22 07:51:13,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (2/4) ... [2020-06-22 07:51:13,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c65684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:51:13, skipping insertion in model container [2020-06-22 07:51:13,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:51:13" (3/4) ... [2020-06-22 07:51:13,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c65684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:51:13, skipping insertion in model container [2020-06-22 07:51:13,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:51:13" (4/4) ... [2020-06-22 07:51:13,336 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:51:13,347 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:51:13,355 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 07:51:13,374 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 07:51:13,403 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:51:13,404 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:51:13,404 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:51:13,404 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:51:13,405 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:51:13,405 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:51:13,405 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:51:13,405 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:51:13,405 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:51:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 07:51:13,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 07:51:13,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 07:51:13,479 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 07:51:13,479 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 13 17) the Hoare annotation is: true [2020-06-22 07:51:13,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:51:13 BasicIcfg [2020-06-22 07:51:13,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:51:13,488 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:51:13,488 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:51:13,491 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:51:13,492 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:51:13,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 07:51:12" (1/5) ... [2020-06-22 07:51:13,493 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d1797a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:51:13, skipping insertion in model container [2020-06-22 07:51:13,493 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:51:13,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:51:12" (2/5) ... [2020-06-22 07:51:13,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d1797a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:51:13, skipping insertion in model container [2020-06-22 07:51:13,494 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:51:13,494 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:51:13" (3/5) ... [2020-06-22 07:51:13,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d1797a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:51:13, skipping insertion in model container [2020-06-22 07:51:13,495 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:51:13,495 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:51:13" (4/5) ... [2020-06-22 07:51:13,495 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d1797a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:51:13, skipping insertion in model container [2020-06-22 07:51:13,495 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:51:13,495 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:51:13" (5/5) ... [2020-06-22 07:51:13,497 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:51:13,524 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:51:13,524 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 07:51:13,524 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 07:51:13,524 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:51:13,524 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:51:13,524 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:51:13,525 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 07:51:13,525 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:51:13,525 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 07:51:13,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 07:51:13,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 07:51:13,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:51:13,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:51:13,554 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:51:13,554 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 07:51:13,554 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 07:51:13,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 07:51:13,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 07:51:13,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:51:13,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:51:13,555 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:51:13,555 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 07:51:13,560 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [19] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 4#L13-2true [2020-06-22 07:51:13,561 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-2true [28] L13-2-->L13-2: Formula: (and (> 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (< 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 4#L13-2true [2020-06-22 07:51:13,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:13,567 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-06-22 07:51:13,569 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:13,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:13,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:13,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:13,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:13,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:13,644 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2020-06-22 07:51:13,644 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:13,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:13,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:13,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:13,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:13,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:13,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1578, now seen corresponding path program 1 times [2020-06-22 07:51:13,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:13,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:13,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:13,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:13,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:13,744 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:51:13,745 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:51:13,746 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:51:13,746 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:51:13,746 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:51:13,746 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:51:13,746 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:51:13,746 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:51:13,747 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:51:13,747 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:51:13,747 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:51:13,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:51:13,779 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 07:51:13,784 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 07:51:13,888 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:51:13,889 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 07:51:13,896 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:51:13,896 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:51:13,945 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:51:13,945 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/sandbox2/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 07:51:13,952 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:51:13,952 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:51:13,980 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:51:13,980 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/sandbox2/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 07:51:13,986 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:51:13,986 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 07:51:14,023 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:51:14,023 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:51:14,092 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:51:14,095 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:51:14,095 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:51:14,095 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:51:14,095 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:51:14,095 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:51:14,095 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:51:14,096 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:51:14,096 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:51:14,096 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:51:14,096 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:51:14,096 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:51:14,098 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 07:51:14,104 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 07:51:14,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:51:14,218 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:51:14,224 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:51:14,226 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 07:51:14,227 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:51:14,228 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:51:14,228 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:51:14,228 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:51:14,232 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:51:14,232 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:51:14,241 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:51:14,242 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 07:51:14,243 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:51:14,243 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:51:14,243 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:51:14,243 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:51:14,245 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:51:14,246 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:51:14,254 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:51:14,254 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 07:51:14,255 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:51:14,255 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:51:14,256 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:51:14,256 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:51:14,256 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:51:14,257 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:51:14,257 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:51:14,270 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:51:14,278 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-06-22 07:51:14,279 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 07:51:14,281 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:51:14,281 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:51:14,281 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:51:14,282 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 07:51:14,283 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:51:14,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:51:14,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:51:14,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:51:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:51:14,338 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 07:51:14,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:51:14,338 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 07:51:14,351 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 07:51:14,356 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 07:51:14,358 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-06-22 07:51:14,407 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 5 states and 17 transitions. Complement of second has 2 states. [2020-06-22 07:51:14,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 07:51:14,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 07:51:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2020-06-22 07:51:14,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 07:51:14,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:14,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 07:51:14,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:14,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 07:51:14,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:14,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 17 transitions. [2020-06-22 07:51:14,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 07:51:14,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 17 transitions. [2020-06-22 07:51:14,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 07:51:14,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 07:51:14,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 17 transitions. [2020-06-22 07:51:14,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:51:14,428 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 17 transitions. [2020-06-22 07:51:14,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 17 transitions. [2020-06-22 07:51:14,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-06-22 07:51:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 07:51:14,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-06-22 07:51:14,458 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 13 transitions. [2020-06-22 07:51:14,458 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 13 transitions. [2020-06-22 07:51:14,458 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 07:51:14,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 13 transitions. [2020-06-22 07:51:14,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 07:51:14,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:51:14,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:51:14,459 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:51:14,459 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 07:51:14,460 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 33#L13-2 [31] L13-2-->L13-2: Formula: (and (> 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (> 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 34#L13-2 [2020-06-22 07:51:14,460 INFO L796 eck$LassoCheckResult]: Loop: 34#L13-2 [28] L13-2-->L13-2: Formula: (and (> 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (< 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 34#L13-2 [2020-06-22 07:51:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:14,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1581, now seen corresponding path program 1 times [2020-06-22 07:51:14,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:14,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:14,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:14,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:14,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:14,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:14,471 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 2 times [2020-06-22 07:51:14,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:14,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:14,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:14,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:14,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:14,479 INFO L82 PathProgramCache]: Analyzing trace with hash 49039, now seen corresponding path program 1 times [2020-06-22 07:51:14,479 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:14,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:14,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:14,480 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:51:14,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:51:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:51:14,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:51:14,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 07:51:14,556 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:51:14,557 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:51:14,557 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:51:14,557 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:51:14,557 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:51:14,557 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:51:14,557 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:51:14,557 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:51:14,558 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:51:14,558 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:51:14,558 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:51:14,559 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 07:51:14,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:51:14,568 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 07:51:14,636 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:51:14,637 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 07:51:14,641 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:51:14,641 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:51:14,669 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:51:14,669 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/sandbox2/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 07:51:14,681 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:51:14,682 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:51:14,710 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:51:14,711 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/sandbox2/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 07:51:14,720 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:51:14,720 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 07:51:14,756 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:51:14,756 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:51:14,824 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:51:14,827 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:51:14,827 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:51:14,827 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:51:14,828 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:51:14,828 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:51:14,828 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:51:14,828 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:51:14,828 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:51:14,828 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 07:51:14,828 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:51:14,828 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:51:14,830 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 07:51:14,834 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 07:51:14,837 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 07:51:14,923 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:51:14,924 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:51:14,924 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 07:51:14,925 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:51:14,925 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:51:14,925 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:51:14,925 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:51:14,927 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:51:14,927 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:51:14,932 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:51:14,932 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 07:51:14,933 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:51:14,933 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:51:14,933 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:51:14,933 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:51:14,935 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:51:14,935 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:51:14,940 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:51:14,940 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 07:51:14,941 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:51:14,941 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:51:14,941 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:51:14,941 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:51:14,941 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:51:14,942 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:51:14,942 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:51:14,951 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:51:14,956 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-06-22 07:51:14,956 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 07:51:14,957 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:51:14,957 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:51:14,957 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:51:14,957 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 07:51:14,958 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:51:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:51:14,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:51:14,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:51:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:51:14,996 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 07:51:14,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:51:14,996 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 07:51:14,997 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 07:51:14,997 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 07:51:14,997 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 13 transitions. cyclomatic complexity: 11 Second operand 2 states. [2020-06-22 07:51:15,024 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 13 transitions. cyclomatic complexity: 11. Second operand 2 states. Result 8 states and 29 transitions. Complement of second has 3 states. [2020-06-22 07:51:15,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 07:51:15,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 07:51:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2020-06-22 07:51:15,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 07:51:15,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:15,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 07:51:15,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:15,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 07:51:15,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:15,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 29 transitions. [2020-06-22 07:51:15,030 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 07:51:15,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 29 transitions. [2020-06-22 07:51:15,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 07:51:15,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 07:51:15,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 29 transitions. [2020-06-22 07:51:15,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:51:15,032 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 29 transitions. [2020-06-22 07:51:15,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 29 transitions. [2020-06-22 07:51:15,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-06-22 07:51:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 07:51:15,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 25 transitions. [2020-06-22 07:51:15,035 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 25 transitions. [2020-06-22 07:51:15,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 07:51:15,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 07:51:15,038 INFO L87 Difference]: Start difference. First operand 7 states and 25 transitions. Second operand 3 states. [2020-06-22 07:51:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:51:15,075 INFO L93 Difference]: Finished difference Result 7 states and 17 transitions. [2020-06-22 07:51:15,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 07:51:15,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 17 transitions. [2020-06-22 07:51:15,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 07:51:15,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 17 transitions. [2020-06-22 07:51:15,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 07:51:15,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 07:51:15,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 17 transitions. [2020-06-22 07:51:15,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:51:15,081 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 17 transitions. [2020-06-22 07:51:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 17 transitions. [2020-06-22 07:51:15,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 3. [2020-06-22 07:51:15,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 07:51:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 07:51:15,083 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 7 transitions. [2020-06-22 07:51:15,083 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 7 transitions. [2020-06-22 07:51:15,083 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 07:51:15,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 7 transitions. [2020-06-22 07:51:15,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:51:15,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:51:15,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:51:15,084 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 07:51:15,084 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 07:51:15,085 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 86#L13-2 [2020-06-22 07:51:15,085 INFO L796 eck$LassoCheckResult]: Loop: 86#L13-2 [29] L13-2-->L13-2: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (> 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 86#L13-2 [2020-06-22 07:51:15,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:15,085 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-06-22 07:51:15,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:15,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:15,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:15,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:15,092 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2020-06-22 07:51:15,092 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:15,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:15,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,093 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:51:15,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:15,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1579, now seen corresponding path program 1 times [2020-06-22 07:51:15,099 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:15,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:15,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:15,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,129 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:51:15,129 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:51:15,129 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:51:15,129 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:51:15,130 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:51:15,130 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:51:15,130 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:51:15,130 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:51:15,130 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 07:51:15,130 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:51:15,130 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:51:15,132 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 07:51:15,136 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 07:51:15,152 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 07:51:15,218 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:51:15,218 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 07:51:15,222 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:51:15,222 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:51:15,249 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:51:15,250 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 07:51:15,255 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:51:15,255 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 07:51:15,292 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:51:15,292 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:51:15,367 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:51:15,369 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:51:15,369 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:51:15,370 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:51:15,370 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:51:15,370 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:51:15,370 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:51:15,370 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:51:15,370 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:51:15,370 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 07:51:15,370 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:51:15,370 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:51:15,372 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 07:51:15,376 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 07:51:15,388 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 07:51:15,444 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:51:15,444 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:51:15,444 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 07:51:15,445 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:51:15,445 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:51:15,445 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:51:15,445 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:51:15,447 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 07:51:15,447 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 07:51:15,452 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:51:15,452 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 07:51:15,453 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:51:15,453 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:51:15,453 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:51:15,453 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:51:15,453 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:51:15,454 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:51:15,454 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:51:15,461 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:51:15,465 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-06-22 07:51:15,465 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 07:51:15,466 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:51:15,466 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:51:15,466 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:51:15,466 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-06-22 07:51:15,466 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:51:15,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:51:15,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 07:51:15,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:51:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:51:15,488 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 07:51:15,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:51:15,489 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 07:51:15,489 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 07:51:15,489 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 07:51:15,489 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states and 7 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-06-22 07:51:15,507 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states and 7 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 7 states and 21 transitions. Complement of second has 2 states. [2020-06-22 07:51:15,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 07:51:15,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 07:51:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2020-06-22 07:51:15,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 07:51:15,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:15,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 07:51:15,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:15,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 07:51:15,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:51:15,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 21 transitions. [2020-06-22 07:51:15,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:51:15,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 21 transitions. [2020-06-22 07:51:15,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 07:51:15,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 07:51:15,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 21 transitions. [2020-06-22 07:51:15,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:51:15,512 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 21 transitions. [2020-06-22 07:51:15,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 21 transitions. [2020-06-22 07:51:15,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2020-06-22 07:51:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 07:51:15,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-06-22 07:51:15,514 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 15 transitions. [2020-06-22 07:51:15,514 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 15 transitions. [2020-06-22 07:51:15,514 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 07:51:15,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 15 transitions. [2020-06-22 07:51:15,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 07:51:15,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:51:15,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:51:15,515 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:51:15,515 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 07:51:15,515 INFO L794 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 118#L13-2 [31] L13-2-->L13-2: Formula: (and (> 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (> 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 119#L13-2 [2020-06-22 07:51:15,516 INFO L796 eck$LassoCheckResult]: Loop: 119#L13-2 [31] L13-2-->L13-2: Formula: (and (> 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (> 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 119#L13-2 [2020-06-22 07:51:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1581, now seen corresponding path program 2 times [2020-06-22 07:51:15,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:15,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:15,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:15,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:15,524 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times [2020-06-22 07:51:15,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:15,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:15,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,525 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 07:51:15,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:51:15,530 INFO L82 PathProgramCache]: Analyzing trace with hash 49042, now seen corresponding path program 3 times [2020-06-22 07:51:15,530 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:51:15,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:51:15,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:51:15,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:51:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:51:15,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:51:15 BasicIcfg [2020-06-22 07:51:15,619 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:51:15,620 INFO L168 Benchmark]: Toolchain (without parser) took 3018.80 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 565.4 MB in the beginning and 401.0 MB in the end (delta: 164.3 MB). Peak memory consumption was 208.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:51:15,621 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:51:15,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.19 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 565.4 MB in the beginning and 661.4 MB in the end (delta: -96.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-06-22 07:51:15,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.89 ms. Allocated memory is still 693.6 MB. Free memory was 661.4 MB in the beginning and 660.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:51:15,623 INFO L168 Benchmark]: Boogie Preprocessor took 22.58 ms. Allocated memory is still 693.6 MB. Free memory was 660.0 MB in the beginning and 658.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:51:15,624 INFO L168 Benchmark]: RCFGBuilder took 207.16 ms. Allocated memory is still 693.6 MB. Free memory was 658.6 MB in the beginning and 642.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. [2020-06-22 07:51:15,624 INFO L168 Benchmark]: BlockEncodingV2 took 87.76 ms. Allocated memory is still 693.6 MB. Free memory was 642.8 MB in the beginning and 637.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:51:15,625 INFO L168 Benchmark]: TraceAbstraction took 159.46 ms. Allocated memory is still 693.6 MB. Free memory was 637.4 MB in the beginning and 629.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:51:15,625 INFO L168 Benchmark]: BuchiAutomizer took 2131.13 ms. Allocated memory is still 693.6 MB. Free memory was 629.2 MB in the beginning and 401.0 MB in the end (delta: 228.2 MB). Peak memory consumption was 228.2 MB. Max. memory is 50.3 GB. [2020-06-22 07:51:15,630 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 358.19 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 565.4 MB in the beginning and 661.4 MB in the end (delta: -96.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 45.89 ms. Allocated memory is still 693.6 MB. Free memory was 661.4 MB in the beginning and 660.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 22.58 ms. Allocated memory is still 693.6 MB. Free memory was 660.0 MB in the beginning and 658.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 207.16 ms. Allocated memory is still 693.6 MB. Free memory was 658.6 MB in the beginning and 642.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 87.76 ms. Allocated memory is still 693.6 MB. Free memory was 642.8 MB in the beginning and 637.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 159.46 ms. Allocated memory is still 693.6 MB. Free memory was 637.4 MB in the beginning and 629.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2131.13 ms. Allocated memory is still 693.6 MB. Free memory was 629.2 MB in the beginning and 401.0 MB in the end (delta: 228.2 MB). Peak memory consumption was 228.2 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: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * i and consists of 2 locations. One nondeterministic module has affine ranking function -1 * i and consists of 2 locations. One nondeterministic module has affine ranking function -1 * j and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 15 SDslu, 0 SDs, 0 SdLazy, 52 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf89 smp100 dnf100 smp100 tf107 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {t=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11d590bd=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13534951=0, i=-1, j=-1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t Loop: [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 07:51:09.303 ----------------------------------------------- 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/sandbox2/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/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 07:51:15.866 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check