NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:26:42,213 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:26:42,215 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:26:42,226 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:26:42,227 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:26:42,228 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:26:42,229 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:26:42,230 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:26:42,232 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:26:42,232 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:26:42,233 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:26:42,234 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:26:42,234 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:26:42,235 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:26:42,236 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:26:42,237 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:26:42,238 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:26:42,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:26:42,242 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:26:42,243 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:26:42,244 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:26:42,245 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:26:42,247 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:26:42,247 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:26:42,247 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:26:42,248 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:26:42,249 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:26:42,250 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:26:42,250 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:26:42,251 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:26:42,251 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:26:42,252 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:26:42,253 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:26:42,253 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:26:42,254 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:26:42,254 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:26:42,255 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:26:42,256 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:26:42,256 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:26:42,257 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 05:26:42,271 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:26:42,272 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:26:42,273 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:26:42,273 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:26:42,273 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:26:42,273 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:26:42,274 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:26:42,274 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:26:42,274 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:26:42,274 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:26:42,274 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:26:42,275 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:26:42,275 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:26:42,275 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:26:42,275 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:42,275 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:26:42,275 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:26:42,276 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:26:42,276 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:26:42,276 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:26:42,276 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:26:42,276 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:26:42,277 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:26:42,277 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:26:42,277 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:26:42,277 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:26:42,277 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:26:42,277 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:26:42,278 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:26:42,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:26:42,318 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:26:42,330 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:26:42,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:26:42,331 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:26:42,332 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 05:26:42,399 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/07be90a5f497436d839de83f70c63673/FLAG8b854c201 [2020-06-22 05:26:42,750 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:26:42,751 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 05:26:42,758 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/07be90a5f497436d839de83f70c63673/FLAG8b854c201 [2020-06-22 05:26:43,146 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/07be90a5f497436d839de83f70c63673 [2020-06-22 05:26:43,157 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:26:43,159 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:26:43,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:26:43,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:26:43,163 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:26:43,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aec6de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43, skipping insertion in model container [2020-06-22 05:26:43,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:26:43,192 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:26:43,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:26:43,348 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:26:43,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:26:43,433 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:26:43,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43 WrapperNode [2020-06-22 05:26:43,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:26:43,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:26:43,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:26:43,435 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:26:43,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:26:43,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:26:43,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:26:43,468 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:26:43,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:26:43,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:26:43,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:26:43,486 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:26:43,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (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 05:26:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:26:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:26:43,667 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:26:43,667 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 05:26:43,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:26:43 BoogieIcfgContainer [2020-06-22 05:26:43,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:26:43,669 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:26:43,669 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:26:43,671 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:26:43,672 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:26:43" (1/1) ... [2020-06-22 05:26:43,685 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 05:26:43,687 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:26:43,688 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:26:43,688 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:26:43,688 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:26:43,690 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:26:43,691 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:26:43,691 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:26:43,706 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:26:43,719 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 05:26:43,724 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 05:26:43,725 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:26:43,737 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 05:26:43,739 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 05:26:43,740 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:26:43,741 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:26:43,741 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:26:43,741 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:26:43,741 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-22 05:26:43,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:26:43 BasicIcfg [2020-06-22 05:26:43,742 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:26:43,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:26:43,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:26:43,746 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:26:43,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:26:43" (1/4) ... [2020-06-22 05:26:43,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c185449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:26:43, skipping insertion in model container [2020-06-22 05:26:43,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (2/4) ... [2020-06-22 05:26:43,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c185449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:26:43, skipping insertion in model container [2020-06-22 05:26:43,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:26:43" (3/4) ... [2020-06-22 05:26:43,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c185449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:26:43, skipping insertion in model container [2020-06-22 05:26:43,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:26:43" (4/4) ... [2020-06-22 05:26:43,750 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:26:43,759 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:26:43,766 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:26:43,783 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:26:43,811 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:26:43,811 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:26:43,811 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:26:43,812 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:26:43,812 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:26:43,812 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:26:43,812 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:26:43,812 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:26:43,812 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:26:43,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 05:26:43,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:26:43,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 05:26:43,883 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-06-22 05:26:43,883 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:26:43,884 INFO L451 ceAbstractionStarter]: At program point L15-2(lines 14 20) the Hoare annotation is: true [2020-06-22 05:26:43,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:26:43 BasicIcfg [2020-06-22 05:26:43,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:26:43,892 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:26:43,892 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:26:43,895 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:26:43,896 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:26:43,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:26:43" (1/5) ... [2020-06-22 05:26:43,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ae82831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:26:43, skipping insertion in model container [2020-06-22 05:26:43,897 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:26:43,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:26:43" (2/5) ... [2020-06-22 05:26:43,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ae82831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:26:43, skipping insertion in model container [2020-06-22 05:26:43,898 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:26:43,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:26:43" (3/5) ... [2020-06-22 05:26:43,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ae82831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:26:43, skipping insertion in model container [2020-06-22 05:26:43,899 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:26:43,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:26:43" (4/5) ... [2020-06-22 05:26:43,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ae82831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:26:43, skipping insertion in model container [2020-06-22 05:26:43,900 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:26:43,900 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:26:43" (5/5) ... [2020-06-22 05:26:43,901 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:26:43,928 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:26:43,928 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:26:43,928 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:26:43,928 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:26:43,929 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:26:43,929 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:26:43,929 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:26:43,929 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:26:43,929 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:26:43,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 05:26:43,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:26:43,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:26:43,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:26:43,958 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:26:43,958 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:26:43,958 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:26:43,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 05:26:43,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:26:43,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:26:43,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:26:43,960 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:26:43,960 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:26:43,965 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L15-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 5#L15-2true [2020-06-22 05:26:43,965 INFO L796 eck$LassoCheckResult]: Loop: 5#L15-2true [31] L15-2-->L15: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 3#L15true [35] L15-->L15-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet1_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 5#L15-2true [2020-06-22 05:26:43,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:43,971 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-06-22 05:26:43,973 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:43,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:44,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:26:44,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:44,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 1 times [2020-06-22 05:26:44,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:44,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:44,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:26:44,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:44,054 INFO L82 PathProgramCache]: Analyzing trace with hash 56734, now seen corresponding path program 1 times [2020-06-22 05:26:44,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:44,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:44,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:26:44,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,102 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:26:44,103 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:26:44,103 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:26:44,103 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:26:44,103 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:26:44,104 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:44,104 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:26:44,104 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:26:44,104 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:26:44,104 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:26:44,105 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:26:44,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,230 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:26:44,231 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 05:26:44,237 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:44,238 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:44,271 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:44,271 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 05:26:44,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:44,279 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:44,307 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:44,307 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 05:26:44,313 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:44,313 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:44,340 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:44,340 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=1} Honda state: {ULTIMATE.start_main_#t~nondet1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 05:26:44,347 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:44,347 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 05:26:44,378 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:26:44,378 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:44,409 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:26:44,412 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:26:44,412 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:26:44,412 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:26:44,412 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:26:44,412 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:26:44,413 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:26:44,413 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:26:44,413 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:26:44,413 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:26:44,413 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:26:44,413 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:26:44,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,519 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:26:44,524 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:26:44,526 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:26:44,528 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:26:44,528 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:26:44,528 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:26:44,528 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:26:44,533 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:26:44,533 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:26:44,542 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:26:44,543 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:26:44,544 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:26:44,544 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:26:44,544 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:26:44,544 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:26:44,547 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:26:44,547 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:26:44,556 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:26:44,557 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:26:44,557 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:26:44,558 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:26:44,558 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:26:44,558 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:26:44,558 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:26:44,559 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:26:44,559 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:26:44,563 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:26:44,563 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:26:44,564 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:26:44,564 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:26:44,564 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:26:44,564 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:26:44,565 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:26:44,565 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:26:44,565 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:26:44,571 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:26:44,576 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:26:44,577 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:26:44,579 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:26:44,579 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:26:44,579 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:26:44,579 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 05:26:44,581 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:26:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:26:44,637 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:26:44,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:26:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:26:44,653 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:26:44,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:26:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:26:44,711 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:26:44,716 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 05:26:44,718 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 05:26:44,763 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 11 states and 19 transitions. Complement of second has 6 states. [2020-06-22 05:26:44,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 05:26:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:26:44,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-06-22 05:26:44,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 05:26:44,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:26:44,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 05:26:44,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:26:44,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 05:26:44,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:26:44,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 19 transitions. [2020-06-22 05:26:44,776 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 05:26:44,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 16 transitions. [2020-06-22 05:26:44,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 05:26:44,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 05:26:44,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 16 transitions. [2020-06-22 05:26:44,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:26:44,782 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2020-06-22 05:26:44,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 16 transitions. [2020-06-22 05:26:44,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2020-06-22 05:26:44,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 05:26:44,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-06-22 05:26:44,811 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-06-22 05:26:44,811 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-06-22 05:26:44,811 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:26:44,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-06-22 05:26:44,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 05:26:44,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:26:44,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:26:44,812 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 05:26:44,812 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:26:44,813 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L15-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 55#L15-2 [31] L15-2-->L15: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 50#L15 [25] L15-->L15-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 51#L15-2 [2020-06-22 05:26:44,813 INFO L796 eck$LassoCheckResult]: Loop: 51#L15-2 [31] L15-2-->L15: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 56#L15 [35] L15-->L15-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet1_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 51#L15-2 [2020-06-22 05:26:44,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:44,813 INFO L82 PathProgramCache]: Analyzing trace with hash 56724, now seen corresponding path program 1 times [2020-06-22 05:26:44,813 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:44,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:44,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:26:44,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:44,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 2 times [2020-06-22 05:26:44,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:44,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:44,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:26:44,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:44,829 INFO L82 PathProgramCache]: Analyzing trace with hash 54512760, now seen corresponding path program 1 times [2020-06-22 05:26:44,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:44,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:44,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,831 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:26:44,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:44,853 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:26:44,853 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:26:44,853 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:26:44,853 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:26:44,853 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:26:44,853 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:44,853 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:26:44,854 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:26:44,854 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:26:44,854 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:26:44,854 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:26:44,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:44,916 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:26:44,917 INFO L412 LassoAnalysis]: Checking for nontermination... 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 05:26:44,920 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:44,921 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:44,949 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:44,950 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:44,954 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:44,955 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:44,982 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:44,982 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:44,987 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:44,987 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 05:26:45,018 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:26:45,018 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,048 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:26:45,051 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:26:45,051 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:26:45,051 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:26:45,051 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:26:45,051 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:26:45,052 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:26:45,052 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:26:45,052 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:26:45,052 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:26:45,052 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:26:45,052 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:26:45,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,108 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:26:45,108 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:26:45,109 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:26:45,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:26:45,110 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:26:45,110 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:26:45,110 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:26:45,112 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:26:45,112 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:26:45,117 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:26:45,117 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:26:45,118 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:26:45,118 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:26:45,118 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:26:45,118 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:26:45,120 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 05:26:45,120 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 05:26:45,128 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:26:45,128 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 05:26:45,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:26:45,129 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:26:45,129 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:26:45,130 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:26:45,130 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:26:45,131 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:26:45,131 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:26:45,135 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:26:45,138 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:26:45,138 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:26:45,139 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:26:45,139 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:26:45,139 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:26:45,139 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 05:26:45,139 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:26:45,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:26:45,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 05:26:45,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:26:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:26:45,176 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:26:45,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:26:45,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 05:26:45,212 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 05:26:45,212 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 05:26:45,212 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-06-22 05:26:45,254 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 24 transitions. Complement of second has 10 states. [2020-06-22 05:26:45,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 05:26:45,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 05:26:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-06-22 05:26:45,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 05:26:45,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:26:45,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 05:26:45,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:26:45,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-22 05:26:45,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:26:45,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 24 transitions. [2020-06-22 05:26:45,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-22 05:26:45,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 20 transitions. [2020-06-22 05:26:45,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 05:26:45,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 05:26:45,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 20 transitions. [2020-06-22 05:26:45,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 05:26:45,260 INFO L706 BuchiCegarLoop]: Abstraction has 12 states and 20 transitions. [2020-06-22 05:26:45,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 20 transitions. [2020-06-22 05:26:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 5. [2020-06-22 05:26:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 05:26:45,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-06-22 05:26:45,262 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 05:26:45,262 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-06-22 05:26:45,263 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:26:45,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-06-22 05:26:45,263 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:26:45,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:26:45,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:26:45,264 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 05:26:45,264 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 05:26:45,264 INFO L794 eck$LassoCheckResult]: Stem: 119#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L15-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 116#L15-2 [2020-06-22 05:26:45,264 INFO L796 eck$LassoCheckResult]: Loop: 116#L15-2 [31] L15-2-->L15: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 115#L15 [25] L15-->L15-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 116#L15-2 [2020-06-22 05:26:45,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:45,265 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 2 times [2020-06-22 05:26:45,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:45,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:45,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:45,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:26:45,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:45,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:45,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1947, now seen corresponding path program 1 times [2020-06-22 05:26:45,270 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:45,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:45,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:45,271 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:26:45,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:45,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:26:45,276 INFO L82 PathProgramCache]: Analyzing trace with hash 56724, now seen corresponding path program 2 times [2020-06-22 05:26:45,276 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:26:45,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:26:45,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:45,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:26:45,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:26:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:26:45,302 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:26:45,302 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:26:45,302 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:26:45,303 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:26:45,303 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:26:45,303 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,303 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:26:45,303 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:26:45,303 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 05:26:45,303 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:26:45,303 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:26:45,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,368 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:26:45,368 INFO L412 LassoAnalysis]: Checking for nontermination... 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 05:26:45,372 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,372 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,376 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,377 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/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 05:26:45,405 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,405 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,438 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:26:45,439 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,450 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,450 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,480 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,480 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,509 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,510 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,516 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,516 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,545 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,545 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 05:26:45,556 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:26:45,557 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:26:45,557 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:26:45,557 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:26:45,557 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:26:45,557 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,557 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:26:45,557 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:26:45,557 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 05:26:45,558 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:26:45,558 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:26:45,559 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 05:26:45,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:26:45,638 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:26:45,638 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,643 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,643 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,648 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,648 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,675 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,675 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,678 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,679 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,706 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,706 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,738 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:26:45,738 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,748 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,748 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,776 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,776 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,803 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,803 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,809 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,809 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,813 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,813 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:26:45,840 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:26:45,841 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:26:45,868 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:26:45,868 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 05:26:45,877 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,879 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,879 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,879 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,880 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,880 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,881 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,881 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,881 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,881 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:26:45 BasicIcfg [2020-06-22 05:26:45,892 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:26:45,892 INFO L168 Benchmark]: Toolchain (without parser) took 2734.55 ms. Allocated memory was 649.6 MB in the beginning and 684.7 MB in the end (delta: 35.1 MB). Free memory was 564.2 MB in the beginning and 399.0 MB in the end (delta: 165.2 MB). Peak memory consumption was 200.3 MB. Max. memory is 50.3 GB. [2020-06-22 05:26:45,894 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 05:26:45,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.49 ms. Allocated memory was 649.6 MB in the beginning and 684.7 MB in the end (delta: 35.1 MB). Free memory was 564.2 MB in the beginning and 650.6 MB in the end (delta: -86.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-06-22 05:26:45,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.73 ms. Allocated memory is still 684.7 MB. Free memory was 650.6 MB in the beginning and 647.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 05:26:45,895 INFO L168 Benchmark]: Boogie Preprocessor took 18.13 ms. Allocated memory is still 684.7 MB. Free memory was 647.7 MB in the beginning and 646.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:26:45,897 INFO L168 Benchmark]: RCFGBuilder took 182.74 ms. Allocated memory is still 684.7 MB. Free memory was 646.7 MB in the beginning and 634.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. [2020-06-22 05:26:45,898 INFO L168 Benchmark]: BlockEncodingV2 took 73.15 ms. Allocated memory is still 684.7 MB. Free memory was 634.1 MB in the beginning and 628.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:26:45,899 INFO L168 Benchmark]: TraceAbstraction took 148.82 ms. Allocated memory is still 684.7 MB. Free memory was 628.7 MB in the beginning and 620.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-06-22 05:26:45,899 INFO L168 Benchmark]: BuchiAutomizer took 1999.50 ms. Allocated memory is still 684.7 MB. Free memory was 618.9 MB in the beginning and 399.0 MB in the end (delta: 219.9 MB). Peak memory consumption was 219.9 MB. Max. memory is 50.3 GB. [2020-06-22 05:26:45,905 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 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 274.49 ms. Allocated memory was 649.6 MB in the beginning and 684.7 MB in the end (delta: 35.1 MB). Free memory was 564.2 MB in the beginning and 650.6 MB in the end (delta: -86.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.73 ms. Allocated memory is still 684.7 MB. Free memory was 650.6 MB in the beginning and 647.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.13 ms. Allocated memory is still 684.7 MB. Free memory was 647.7 MB in the beginning and 646.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 182.74 ms. Allocated memory is still 684.7 MB. Free memory was 646.7 MB in the beginning and 634.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 73.15 ms. Allocated memory is still 684.7 MB. Free memory was 634.1 MB in the beginning and 628.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 148.82 ms. Allocated memory is still 684.7 MB. Free memory was 628.7 MB in the beginning and 620.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1999.50 ms. Allocated memory is still 684.7 MB. Free memory was 618.9 MB in the beginning and 399.0 MB in the end (delta: 219.9 MB). Peak memory consumption was 219.9 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 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 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 14 SDslu, 0 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2020-06-22 05:26:45,914 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,915 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,915 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,915 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,916 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,916 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,916 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,916 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,917 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,917 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,917 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,918 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,918 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,919 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,919 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,919 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,920 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,920 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 05:26:45,920 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 05:26:45,921 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, ~unnamed0~0~false=0, |ULTIMATE.start_main_#t~nondet1|=0, ULTIMATE.start_main_~x~0=0, ~unnamed0~0~true=1, |ULTIMATE.start_main_#res|=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11ae4eea=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d077770=0, ~unnamed0~0~false=0, x=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11ae4eea=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d077770=0, ~unnamed0~0~false=0, x=1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11ae4eea=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d077770=0, ~unnamed0~0~false=0, x=2} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11ae4eea=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d077770=0, ~unnamed0~0~false=0, x=3} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11ae4eea=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d077770=0, ~unnamed0~0~false=0, x=4} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [0, 1, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = __VERIFIER_nondet_int() Loop: [L14] COND TRUE x >= 0 [L15] COND FALSE !(__VERIFIER_nondet_int() != 0) [L18] x = x + 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 05:26:39.922 ----------------------------------------------- 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 05:26:46.163 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check