YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 11:39:40,361 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 11:39:40,363 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 11:39:40,374 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 11:39:40,375 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 11:39:40,375 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 11:39:40,377 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 11:39:40,378 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 11:39:40,380 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 11:39:40,380 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 11:39:40,381 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 11:39:40,381 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 11:39:40,382 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 11:39:40,383 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 11:39:40,384 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 11:39:40,385 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 11:39:40,386 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 11:39:40,387 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 11:39:40,389 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 11:39:40,391 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 11:39:40,392 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 11:39:40,393 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 11:39:40,395 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 11:39:40,395 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 11:39:40,395 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 11:39:40,396 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 11:39:40,396 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 11:39:40,397 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 11:39:40,397 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 11:39:40,398 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 11:39:40,399 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 11:39:40,399 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 11:39:40,400 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 11:39:40,401 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 11:39:40,401 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 11:39:40,401 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 11:39:40,402 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 11:39:40,403 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 11:39:40,403 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 11:39:40,403 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 11:39:40,418 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 11:39:40,418 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 11:39:40,419 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 11:39:40,419 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 11:39:40,420 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 11:39:40,420 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:39:40,420 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 11:39:40,420 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 11:39:40,420 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 11:39:40,420 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 11:39:40,421 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 11:39:40,421 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 11:39:40,421 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 11:39:40,421 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 11:39:40,421 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:40,421 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 11:39:40,421 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 11:39:40,422 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 11:39:40,422 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 11:39:40,422 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 11:39:40,422 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 11:39:40,422 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 11:39:40,422 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 11:39:40,423 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 11:39:40,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:39:40,423 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 11:39:40,423 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 11:39:40,423 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 11:39:40,423 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 11:39:40,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 11:39:40,462 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 11:39:40,465 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 11:39:40,466 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 11:39:40,467 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 11:39:40,468 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:39:40,538 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/88da0e3e020b4c7d95b1d384976a1a73/FLAG1e3ef17f5 [2020-06-22 11:39:40,867 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 11:39:40,868 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 11:39:40,875 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/88da0e3e020b4c7d95b1d384976a1a73/FLAG1e3ef17f5 [2020-06-22 11:39:41,277 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/88da0e3e020b4c7d95b1d384976a1a73 [2020-06-22 11:39:41,289 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 11:39:41,291 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 11:39:41,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 11:39:41,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 11:39:41,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 11:39:41,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58aabdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 11:39:41,327 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 11:39:41,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:39:41,490 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 11:39:41,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:39:41,584 INFO L195 MainTranslator]: Completed translation [2020-06-22 11:39:41,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41 WrapperNode [2020-06-22 11:39:41,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 11:39:41,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 11:39:41,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 11:39:41,586 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 11:39:41,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 11:39:41,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 11:39:41,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 11:39:41,620 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 11:39:41,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 11:39:41,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 11:39:41,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 11:39:41,639 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 11:39:41,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (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 11:39:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 11:39:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 11:39:41,830 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 11:39:41,830 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 11:39:41,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:41 BoogieIcfgContainer [2020-06-22 11:39:41,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 11:39:41,832 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 11:39:41,832 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 11:39:41,834 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 11:39:41,835 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:41" (1/1) ... [2020-06-22 11:39:41,850 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 11:39:41,851 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 11:39:41,852 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 11:39:41,853 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 11:39:41,853 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:39:41,855 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 11:39:41,856 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 11:39:41,856 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 11:39:41,870 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 11:39:41,877 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 11:39:41,882 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 11:39:41,884 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:39:41,898 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 11:39:41,900 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 11:39:41,902 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 11:39:41,902 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:39:41,902 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 11:39:41,902 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 11:39:41,903 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-06-22 11:39:41,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:39:41 BasicIcfg [2020-06-22 11:39:41,903 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 11:39:41,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 11:39:41,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 11:39:41,907 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 11:39:41,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 11:39:41" (1/4) ... [2020-06-22 11:39:41,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b56f3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (2/4) ... [2020-06-22 11:39:41,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b56f3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:41" (3/4) ... [2020-06-22 11:39:41,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b56f3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:39:41, skipping insertion in model container [2020-06-22 11:39:41,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:39:41" (4/4) ... [2020-06-22 11:39:41,911 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:39:41,921 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 11:39:41,928 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 11:39:41,945 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 11:39:41,973 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:39:41,974 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 11:39:41,974 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 11:39:41,974 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:39:41,974 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:39:41,974 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:39:41,974 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 11:39:41,975 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:39:41,975 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 11:39:41,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 11:39:41,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 11:39:41,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 11:39:42,046 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 17 20) the Hoare annotation is: true [2020-06-22 11:39:42,046 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 11:39:42,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:39:42 BasicIcfg [2020-06-22 11:39:42,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 11:39:42,055 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 11:39:42,055 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 11:39:42,058 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 11:39:42,059 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:42,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 11:39:41" (1/5) ... [2020-06-22 11:39:42,060 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21dcd746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:39:42, skipping insertion in model container [2020-06-22 11:39:42,060 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:42,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:39:41" (2/5) ... [2020-06-22 11:39:42,061 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21dcd746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:39:42, skipping insertion in model container [2020-06-22 11:39:42,061 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:42,061 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:41" (3/5) ... [2020-06-22 11:39:42,061 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21dcd746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:39:42, skipping insertion in model container [2020-06-22 11:39:42,061 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:42,062 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:39:41" (4/5) ... [2020-06-22 11:39:42,062 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21dcd746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:39:42, skipping insertion in model container [2020-06-22 11:39:42,062 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:39:42,062 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:39:42" (5/5) ... [2020-06-22 11:39:42,064 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:39:42,090 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:39:42,091 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 11:39:42,091 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 11:39:42,091 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:39:42,091 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:39:42,091 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:39:42,091 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 11:39:42,091 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:39:42,092 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 11:39:42,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 11:39:42,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 11:39:42,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:39:42,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:39:42,117 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:39:42,117 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 11:39:42,117 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 11:39:42,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 11:39:42,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 11:39:42,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:39:42,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:39:42,118 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:39:42,118 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 11:39:42,123 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [22] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0] 3#L17-2true [2020-06-22 11:39:42,124 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [20] L17-2-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~q~0_7 (+ v_ULTIMATE.start_main_~q~0_8 (* (- 1) v_ULTIMATE.start_main_~y~0_7))) (< 0 v_ULTIMATE.start_main_~q~0_8) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0, ULTIMATE.start_main_~y~0] 3#L17-2true [2020-06-22 11:39:42,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:42,130 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2020-06-22 11:39:42,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:42,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:42,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:42,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:42,201 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2020-06-22 11:39:42,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:42,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:42,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:42,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:42,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1663, now seen corresponding path program 1 times [2020-06-22 11:39:42,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:39:42,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:39:42,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:39:42,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:39:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:39:42,284 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:39:42,286 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:39:42,286 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:39:42,286 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:39:42,286 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:39:42,286 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:42,286 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:39:42,287 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:39:42,287 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:39:42,287 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:39:42,287 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:39:42,308 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 11:39:42,318 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 11:39:42,321 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 11:39:42,423 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:39:42,424 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 11:39:42,435 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:42,435 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:42,469 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:39:42,469 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 11:39:42,475 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:42,476 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:42,503 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:39:42,503 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 11:39:42,508 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:39:42,508 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:39:42,542 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:39:42,542 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:39:44,299 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:39:44,302 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:39:44,302 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:39:44,302 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:39:44,302 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:39:44,302 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:39:44,302 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:39:44,302 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:39:44,303 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:39:44,303 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:39:44,303 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:39:44,303 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:39:44,305 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 11:39:44,309 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 11:39:44,338 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 11:39:44,458 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:39:44,464 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:39:44,466 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 11:39:44,467 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:44,468 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:44,468 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:44,468 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:44,473 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:39:44,474 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:39:44,483 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:44,483 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 11:39:44,484 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:44,484 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:39:44,485 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:44,485 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:44,485 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:44,486 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:39:44,486 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:39:44,495 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:44,496 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 11:39:44,496 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:44,497 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:44,497 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:44,497 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:39:44,500 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:39:44,500 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:39:44,509 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:44,509 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 11:39:44,509 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 11:39:44,510 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:44,510 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:44,510 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:44,511 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 11:39:44,514 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-22 11:39:44,514 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-22 11:39:44,519 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:39:44,519 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 11:39:44,520 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:39:44,520 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:39:44,520 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:39:44,520 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:39:44,521 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 11:39:44,522 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 11:39:44,522 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:39:44,535 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:39:44,549 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:39:44,550 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:39:44,552 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:39:44,552 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:39:44,552 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:39:44,553 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0 + 1 f1 = 2*ULTIMATE.start_main_~q~0 Supporting invariants [] [2020-06-22 11:39:44,555 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:39:44,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:39:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:44,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:39:44,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:39:44,614 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 11:39:44,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:39:44,615 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 11:39:44,647 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 11:39:44,652 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 11:39:44,653 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-06-22 11:39:44,672 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 3 states and 3 transitions. Complement of second has 2 states. [2020-06-22 11:39:44,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 11:39:44,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 11:39:44,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2020-06-22 11:39:44,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 11:39:44,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:44,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 11:39:44,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:44,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 11:39:44,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:39:44,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-06-22 11:39:44,685 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:39:44,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-06-22 11:39:44,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 11:39:44,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 11:39:44,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 11:39:44,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:39:44,690 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:39:44,690 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:39:44,690 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:39:44,690 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 11:39:44,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 11:39:44,690 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:39:44,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 11:39:44,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:39:44 BasicIcfg [2020-06-22 11:39:44,696 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 11:39:44,697 INFO L168 Benchmark]: Toolchain (without parser) took 3407.26 ms. Allocated memory was 645.4 MB in the beginning and 690.5 MB in the end (delta: 45.1 MB). Free memory was 555.1 MB in the beginning and 551.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 48.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:44,699 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 645.4 MB. Free memory is still 576.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 11:39:44,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.92 ms. Allocated memory was 645.4 MB in the beginning and 690.5 MB in the end (delta: 45.1 MB). Free memory was 555.1 MB in the beginning and 658.4 MB in the end (delta: -103.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:44,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.67 ms. Allocated memory is still 690.5 MB. Free memory was 658.4 MB in the beginning and 655.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:44,701 INFO L168 Benchmark]: Boogie Preprocessor took 18.92 ms. Allocated memory is still 690.5 MB. Free memory was 655.7 MB in the beginning and 652.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:44,701 INFO L168 Benchmark]: RCFGBuilder took 192.66 ms. Allocated memory is still 690.5 MB. Free memory was 652.6 MB in the beginning and 640.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:44,702 INFO L168 Benchmark]: BlockEncodingV2 took 71.18 ms. Allocated memory is still 690.5 MB. Free memory was 640.9 MB in the beginning and 635.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:44,702 INFO L168 Benchmark]: TraceAbstraction took 150.30 ms. Allocated memory is still 690.5 MB. Free memory was 635.5 MB in the beginning and 627.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:44,703 INFO L168 Benchmark]: BuchiAutomizer took 2641.56 ms. Allocated memory is still 690.5 MB. Free memory was 626.2 MB in the beginning and 551.8 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 50.3 GB. [2020-06-22 11:39:44,707 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 645.4 MB. Free memory is still 576.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 293.92 ms. Allocated memory was 645.4 MB in the beginning and 690.5 MB in the end (delta: 45.1 MB). Free memory was 555.1 MB in the beginning and 658.4 MB in the end (delta: -103.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.67 ms. Allocated memory is still 690.5 MB. Free memory was 658.4 MB in the beginning and 655.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.92 ms. Allocated memory is still 690.5 MB. Free memory was 655.7 MB in the beginning and 652.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 192.66 ms. Allocated memory is still 690.5 MB. Free memory was 652.6 MB in the beginning and 640.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.18 ms. Allocated memory is still 690.5 MB. Free memory was 640.9 MB in the beginning and 635.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.30 ms. Allocated memory is still 690.5 MB. Free memory was 635.5 MB in the beginning and 627.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2641.56 ms. Allocated memory is still 690.5 MB. Free memory was 626.2 MB in the beginning and 551.8 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 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: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * q) and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf93 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 11:39:37.467 ----------------------------------------------- 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 11:39:44.939 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check