YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:05:11,242 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:05:11,244 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:05:11,256 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:05:11,256 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:05:11,257 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:05:11,258 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:05:11,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:05:11,261 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:05:11,262 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:05:11,263 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:05:11,263 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:05:11,264 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:05:11,265 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:05:11,266 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:05:11,266 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:05:11,267 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:05:11,269 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:05:11,271 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:05:11,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:05:11,273 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:05:11,274 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:05:11,276 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:05:11,276 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:05:11,277 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:05:11,277 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:05:11,278 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:05:11,279 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:05:11,279 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:05:11,280 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:05:11,280 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:05:11,281 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:05:11,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:05:11,282 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:05:11,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:05:11,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:05:11,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:05:11,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:05:11,285 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:05:11,285 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 01:05:11,299 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:05:11,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:05:11,301 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:05:11,301 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:05:11,301 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:05:11,301 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:05:11,301 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:05:11,301 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:05:11,302 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:05:11,302 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:05:11,302 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:05:11,302 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:05:11,302 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:05:11,302 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:05:11,303 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:05:11,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:05:11,303 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:05:11,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:05:11,303 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:05:11,303 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:05:11,304 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:05:11,304 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:05:11,304 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:05:11,304 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:05:11,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:05:11,305 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:05:11,305 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:05:11,305 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:05:11,305 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:05:11,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:05:11,343 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:05:11,347 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:05:11,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:05:11,349 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:05:11,350 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:05:11,418 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/e6c3296b8cd44934a2219853fc8f51a9/FLAG43872d419 [2020-06-22 01:05:11,759 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:05:11,760 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:05:11,766 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/e6c3296b8cd44934a2219853fc8f51a9/FLAG43872d419 [2020-06-22 01:05:12,163 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/e6c3296b8cd44934a2219853fc8f51a9 [2020-06-22 01:05:12,175 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:05:12,176 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:05:12,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:05:12,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:05:12,181 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:05:12,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3769fbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12, skipping insertion in model container [2020-06-22 01:05:12,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:05:12,210 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:05:12,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:05:12,367 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:05:12,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:05:12,452 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:05:12,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12 WrapperNode [2020-06-22 01:05:12,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:05:12,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:05:12,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:05:12,454 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:05:12,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:05:12,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:05:12,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:05:12,488 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:05:12,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:05:12,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:05:12,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:05:12,508 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:05:12,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:05:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:05:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:05:12,701 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:05:12,702 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 01:05:12,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:05:12 BoogieIcfgContainer [2020-06-22 01:05:12,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:05:12,704 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:05:12,704 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:05:12,706 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:05:12,707 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:05:12" (1/1) ... [2020-06-22 01:05:12,721 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 01:05:12,723 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:05:12,724 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:05:12,724 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:05:12,725 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:05:12,727 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:05:12,728 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:05:12,728 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:05:12,742 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:05:12,756 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 01:05:12,761 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 01:05:12,762 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:05:12,773 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 01:05:12,775 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 01:05:12,776 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:05:12,776 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:05:12,776 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:05:12,777 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:05:12,777 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-22 01:05:12,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:05:12 BasicIcfg [2020-06-22 01:05:12,777 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:05:12,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:05:12,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:05:12,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:05:12,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:05:12" (1/4) ... [2020-06-22 01:05:12,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b0a72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:05:12, skipping insertion in model container [2020-06-22 01:05:12,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (2/4) ... [2020-06-22 01:05:12,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b0a72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:05:12, skipping insertion in model container [2020-06-22 01:05:12,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:05:12" (3/4) ... [2020-06-22 01:05:12,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b0a72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:05:12, skipping insertion in model container [2020-06-22 01:05:12,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:05:12" (4/4) ... [2020-06-22 01:05:12,786 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:05:12,796 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:05:12,803 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:05:12,820 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:05:12,848 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:05:12,849 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:05:12,849 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:05:12,849 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:05:12,849 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:05:12,849 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:05:12,849 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:05:12,849 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:05:12,850 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:05:12,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 01:05:12,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:05:12,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 01:05:12,919 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:05:12,920 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2020-06-22 01:05:12,920 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 20 26) the Hoare annotation is: true [2020-06-22 01:05:12,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:05:12 BasicIcfg [2020-06-22 01:05:12,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:05:12,930 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:05:12,930 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:05:12,933 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:05:12,934 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:05:12,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:05:12" (1/5) ... [2020-06-22 01:05:12,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eb40562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:05:12, skipping insertion in model container [2020-06-22 01:05:12,935 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:05:12,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:05:12" (2/5) ... [2020-06-22 01:05:12,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eb40562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:05:12, skipping insertion in model container [2020-06-22 01:05:12,936 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:05:12,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:05:12" (3/5) ... [2020-06-22 01:05:12,936 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eb40562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:05:12, skipping insertion in model container [2020-06-22 01:05:12,936 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:05:12,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:05:12" (4/5) ... [2020-06-22 01:05:12,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eb40562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:05:12, skipping insertion in model container [2020-06-22 01:05:12,937 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:05:12,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:05:12" (5/5) ... [2020-06-22 01:05:12,938 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:05:12,965 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:05:12,966 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:05:12,966 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:05:12,966 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:05:12,966 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:05:12,966 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:05:12,966 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:05:12,966 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:05:12,967 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:05:12,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:05:12,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:05:12,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:05:12,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:05:12,993 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:05:12,993 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:05:12,993 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:05:12,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:05:12,994 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 01:05:12,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:05:12,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:05:12,995 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:05:12,995 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:05:13,000 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~tx~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~tx~0, ULTIMATE.start_main_~x~0] 5#L21-2true [2020-06-22 01:05:13,000 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true [31] L21-2-->L21: Formula: (and (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7) (<= 0 v_ULTIMATE.start_main_~tx~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 3#L21true [37] L21-->L21-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ (* (- 1) v_ULTIMATE.start_main_~tx~0_8) v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 5#L21-2true [2020-06-22 01:05:13,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:05:13,007 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-06-22 01:05:13,009 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:05:13,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:05:13,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:05:13,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:05:13,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:05:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:05:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:05:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:05:13,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1959, now seen corresponding path program 1 times [2020-06-22 01:05:13,079 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:05:13,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:05:13,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:05:13,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:05:13,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:05:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:05:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:05:13,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:05:13,094 INFO L82 PathProgramCache]: Analyzing trace with hash 55775, now seen corresponding path program 1 times [2020-06-22 01:05:13,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:05:13,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:05:13,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:05:13,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:05:13,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:05:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:05:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:05:13,164 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:05:13,165 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:05:13,165 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:05:13,165 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:05:13,165 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:05:13,166 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:05:13,166 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:05:13,166 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:05:13,166 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 01:05:13,166 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:05:13,167 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:05:13,186 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 01:05:13,197 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 01:05:13,201 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 01:05:13,206 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 01:05:13,322 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:05:13,323 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:05:13,331 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:05:13,331 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:05:13,364 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:05:13,364 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:05:13,371 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:05:13,371 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:05:13,399 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:05:13,399 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:05:13,404 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:05:13,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:05:13,431 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:05:13,431 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=-1} Honda state: {ULTIMATE.start_main_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:05:13,436 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:05:13,436 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:05:13,469 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:05:13,469 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:05:13,839 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:05:13,842 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:05:13,842 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:05:13,843 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:05:13,843 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:05:13,843 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:05:13,843 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:05:13,843 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:05:13,843 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:05:13,843 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 01:05:13,843 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:05:13,844 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:05:13,846 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 01:05:13,852 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 01:05:13,856 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 01:05:13,859 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 01:05:13,936 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:05:13,942 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:05:13,944 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 01:05:13,945 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:05:13,946 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:05:13,946 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:05:13,946 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:05:13,951 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:05:13,951 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:05:13,960 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:05:13,961 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 01:05:13,961 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:05:13,962 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:05:13,962 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:05:13,962 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:05:13,965 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:05:13,965 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:05:13,973 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:05:13,974 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 01:05:13,974 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:05:13,974 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:05:13,975 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:05:13,975 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:05:13,975 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:05:13,976 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:05:13,976 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:05:13,979 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:05:13,980 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 01:05:13,980 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:05:13,981 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:05:13,981 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:05:13,981 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:05:13,981 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:05:13,982 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:05:13,982 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:05:13,989 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:05:13,996 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:05:13,996 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 01:05:13,998 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:05:13,999 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:05:13,999 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:05:13,999 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-06-22 01:05:14,001 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:05:14,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:05:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:05:14,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:05:14,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:05:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:05:14,068 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 01:05:14,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:05:14,092 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 01:05:14,128 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 01:05:14,133 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 01:05:14,134 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 01:05:14,215 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 5 states and 8 transitions. Complement of second has 5 states. [2020-06-22 01:05:14,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-22 01:05:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:05:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-06-22 01:05:14,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 01:05:14,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:05:14,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 01:05:14,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:05:14,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 01:05:14,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:05:14,251 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 8 transitions. [2020-06-22 01:05:14,252 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:05:14,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2020-06-22 01:05:14,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 01:05:14,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 01:05:14,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 01:05:14,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:05:14,257 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:05:14,257 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:05:14,257 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:05:14,257 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:05:14,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 01:05:14,258 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:05:14,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 01:05:14,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:05:14 BasicIcfg [2020-06-22 01:05:14,264 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:05:14,264 INFO L168 Benchmark]: Toolchain (without parser) took 2089.15 ms. Allocated memory was 649.6 MB in the beginning and 674.8 MB in the end (delta: 25.2 MB). Free memory was 558.8 MB in the beginning and 514.5 MB in the end (delta: 44.3 MB). Peak memory consumption was 69.5 MB. Max. memory is 50.3 GB. [2020-06-22 01:05:14,266 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:05:14,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.86 ms. Allocated memory was 649.6 MB in the beginning and 674.8 MB in the end (delta: 25.2 MB). Free memory was 558.8 MB in the beginning and 641.0 MB in the end (delta: -82.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 50.3 GB. [2020-06-22 01:05:14,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.43 ms. Allocated memory is still 674.8 MB. Free memory was 641.0 MB in the beginning and 639.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 01:05:14,268 INFO L168 Benchmark]: Boogie Preprocessor took 18.88 ms. Allocated memory is still 674.8 MB. Free memory was 639.7 MB in the beginning and 636.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:05:14,269 INFO L168 Benchmark]: RCFGBuilder took 196.15 ms. Allocated memory is still 674.8 MB. Free memory was 636.6 MB in the beginning and 623.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 50.3 GB. [2020-06-22 01:05:14,269 INFO L168 Benchmark]: BlockEncodingV2 took 73.83 ms. Allocated memory is still 674.8 MB. Free memory was 623.6 MB in the beginning and 618.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:05:14,270 INFO L168 Benchmark]: TraceAbstraction took 150.76 ms. Allocated memory is still 674.8 MB. Free memory was 618.2 MB in the beginning and 609.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:05:14,270 INFO L168 Benchmark]: BuchiAutomizer took 1334.11 ms. Allocated memory is still 674.8 MB. Free memory was 607.7 MB in the beginning and 514.5 MB in the end (delta: 93.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:05:14,274 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 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 275.86 ms. Allocated memory was 649.6 MB in the beginning and 674.8 MB in the end (delta: 25.2 MB). Free memory was 558.8 MB in the beginning and 641.0 MB in the end (delta: -82.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.43 ms. Allocated memory is still 674.8 MB. Free memory was 641.0 MB in the beginning and 639.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.88 ms. Allocated memory is still 674.8 MB. Free memory was 639.7 MB in the beginning and 636.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 196.15 ms. Allocated memory is still 674.8 MB. Free memory was 636.6 MB in the beginning and 623.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 73.83 ms. Allocated memory is still 674.8 MB. Free memory was 623.6 MB in the beginning and 618.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.76 ms. Allocated memory is still 674.8 MB. Free memory was 618.2 MB in the beginning and 609.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1334.11 ms. Allocated memory is still 674.8 MB. Free memory was 607.7 MB in the beginning and 514.5 MB in the end (delta: 93.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 20]: 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 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function 2 * x + -2 * y + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 14 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf93 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf95 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 01:05:08.679 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 01:05:14.509 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check