YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 08:49:27,052 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 08:49:27,054 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 08:49:27,065 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 08:49:27,066 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 08:49:27,067 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 08:49:27,068 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 08:49:27,069 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 08:49:27,071 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 08:49:27,072 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 08:49:27,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 08:49:27,073 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 08:49:27,074 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 08:49:27,075 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 08:49:27,076 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 08:49:27,076 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 08:49:27,077 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 08:49:27,079 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 08:49:27,081 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 08:49:27,082 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 08:49:27,083 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 08:49:27,084 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 08:49:27,086 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 08:49:27,086 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 08:49:27,087 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 08:49:27,087 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 08:49:27,088 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 08:49:27,089 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 08:49:27,089 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 08:49:27,090 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 08:49:27,090 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 08:49:27,091 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 08:49:27,092 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 08:49:27,092 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 08:49:27,093 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 08:49:27,093 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 08:49:27,093 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 08:49:27,094 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 08:49:27,094 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 08:49:27,095 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 08:49:27,109 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 08:49:27,109 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 08:49:27,111 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 08:49:27,111 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 08:49:27,111 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 08:49:27,111 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:49:27,111 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 08:49:27,111 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 08:49:27,112 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 08:49:27,112 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 08:49:27,112 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 08:49:27,112 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 08:49:27,112 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 08:49:27,113 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 08:49:27,113 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:27,113 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 08:49:27,113 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 08:49:27,113 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 08:49:27,113 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 08:49:27,114 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 08:49:27,114 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 08:49:27,114 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 08:49:27,114 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 08:49:27,114 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 08:49:27,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:49:27,115 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 08:49:27,115 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 08:49:27,115 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 08:49:27,115 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 08:49:27,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 08:49:27,155 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 08:49:27,158 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 08:49:27,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 08:49:27,160 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 08:49:27,161 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:49:27,222 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/e85a8a697f8f4e248c913b21d1944532/FLAGdd9b6e16f [2020-06-22 08:49:27,574 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 08:49:27,575 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:49:27,581 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/e85a8a697f8f4e248c913b21d1944532/FLAGdd9b6e16f [2020-06-22 08:49:28,082 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/e85a8a697f8f4e248c913b21d1944532 [2020-06-22 08:49:28,093 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 08:49:28,095 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 08:49:28,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 08:49:28,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 08:49:28,100 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 08:49:28,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c62500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28, skipping insertion in model container [2020-06-22 08:49:28,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 08:49:28,129 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 08:49:28,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:49:28,286 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 08:49:28,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:49:28,369 INFO L195 MainTranslator]: Completed translation [2020-06-22 08:49:28,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28 WrapperNode [2020-06-22 08:49:28,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 08:49:28,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 08:49:28,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 08:49:28,371 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 08:49:28,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 08:49:28,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 08:49:28,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 08:49:28,404 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 08:49:28,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 08:49:28,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 08:49:28,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 08:49:28,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 08:49:28,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:49:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 08:49:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 08:49:28,611 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 08:49:28,611 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 08:49:28,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:49:28 BoogieIcfgContainer [2020-06-22 08:49:28,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 08:49:28,613 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 08:49:28,613 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 08:49:28,615 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 08:49:28,616 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:49:28" (1/1) ... [2020-06-22 08:49:28,632 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-06-22 08:49:28,633 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 08:49:28,634 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 08:49:28,635 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 08:49:28,635 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:49:28,637 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 08:49:28,638 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 08:49:28,638 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 08:49:28,652 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 08:49:28,659 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 08:49:28,664 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 08:49:28,666 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:49:28,678 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 08:49:28,681 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 08:49:28,682 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 08:49:28,682 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:49:28,682 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 08:49:28,683 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 08:49:28,683 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 7 edges [2020-06-22 08:49:28,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:49:28 BasicIcfg [2020-06-22 08:49:28,684 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 08:49:28,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 08:49:28,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 08:49:28,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 08:49:28,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 08:49:28" (1/4) ... [2020-06-22 08:49:28,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28151074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:49:28, skipping insertion in model container [2020-06-22 08:49:28,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (2/4) ... [2020-06-22 08:49:28,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28151074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:49:28, skipping insertion in model container [2020-06-22 08:49:28,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:49:28" (3/4) ... [2020-06-22 08:49:28,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28151074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:49:28, skipping insertion in model container [2020-06-22 08:49:28,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:49:28" (4/4) ... [2020-06-22 08:49:28,692 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:49:28,701 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 08:49:28,709 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 08:49:28,726 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 08:49:28,753 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:49:28,754 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 08:49:28,754 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 08:49:28,754 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:49:28,754 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:49:28,755 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:49:28,755 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 08:49:28,755 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:49:28,755 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 08:49:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 08:49:28,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 08:49:28,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-22 08:49:28,826 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-06-22 08:49:28,826 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 08:49:28,826 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 12 20) no Hoare annotation was computed. [2020-06-22 08:49:28,826 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 20) no Hoare annotation was computed. [2020-06-22 08:49:28,827 INFO L451 ceAbstractionStarter]: At program point L11-2(lines 11 22) the Hoare annotation is: true [2020-06-22 08:49:28,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:49:28 BasicIcfg [2020-06-22 08:49:28,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 08:49:28,836 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 08:49:28,836 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 08:49:28,839 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 08:49:28,840 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:49:28,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 08:49:28" (1/5) ... [2020-06-22 08:49:28,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2448c23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:49:28, skipping insertion in model container [2020-06-22 08:49:28,841 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:49:28,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:49:28" (2/5) ... [2020-06-22 08:49:28,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2448c23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:49:28, skipping insertion in model container [2020-06-22 08:49:28,842 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:49:28,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:49:28" (3/5) ... [2020-06-22 08:49:28,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2448c23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:49:28, skipping insertion in model container [2020-06-22 08:49:28,842 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:49:28,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:49:28" (4/5) ... [2020-06-22 08:49:28,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2448c23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:49:28, skipping insertion in model container [2020-06-22 08:49:28,843 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:49:28,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:49:28" (5/5) ... [2020-06-22 08:49:28,844 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:49:28,871 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:49:28,872 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 08:49:28,872 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 08:49:28,872 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:49:28,872 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:49:28,872 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:49:28,872 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 08:49:28,872 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:49:28,873 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 08:49:28,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 08:49:28,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:49:28,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:49:28,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:49:28,898 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:49:28,898 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:49:28,898 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 08:49:28,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 08:49:28,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:49:28,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:49:28,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:49:28,899 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:49:28,900 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:49:28,904 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 7#L11-2true [2020-06-22 08:49:28,905 INFO L796 eck$LassoCheckResult]: Loop: 7#L11-2true [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L12true [33] L12-->L15-2: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 6#L15-2true [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 7#L11-2true [2020-06-22 08:49:28,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:28,911 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-06-22 08:49:28,913 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:49:28,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:49:28,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:28,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:49:28,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:28,982 INFO L82 PathProgramCache]: Analyzing trace with hash 70251, now seen corresponding path program 1 times [2020-06-22 08:49:28,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:49:28,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:49:28,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:28,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:49:28,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:28,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:28,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1917293, now seen corresponding path program 1 times [2020-06-22 08:49:28,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:49:28,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:49:28,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:28,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:49:28,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,060 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:49:29,061 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:49:29,061 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:49:29,061 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:49:29,061 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:49:29,062 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:29,062 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:49:29,062 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:49:29,062 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 08:49:29,062 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:49:29,063 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:49:29,082 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 08:49:29,092 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 08:49:29,096 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 08:49:29,110 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 08:49:29,233 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:49:29,234 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:29,242 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:49:29,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:49:29,275 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:49:29,276 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:29,282 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:49:29,283 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:49:29,310 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:49:29,365 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:29,370 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:49:29,371 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:29,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:49:29,403 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:49:29,435 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:49:29,437 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:49:29,438 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:49:29,438 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:49:29,438 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:49:29,438 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:49:29,438 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:49:29,438 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:49:29,438 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:49:29,438 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 08:49:29,439 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:49:29,439 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:49:29,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 08:49:29,444 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 08:49:29,454 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 08:49:29,457 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 08:49:29,525 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:49:29,530 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:49:29,532 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 08:49:29,534 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:49:29,534 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:49:29,534 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:49:29,534 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:49:29,539 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:49:29,539 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:49:29,547 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:49:29,547 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 08:49:29,548 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:49:29,548 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:49:29,549 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:49:29,549 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:49:29,549 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:49:29,550 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:49:29,550 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:49:29,558 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:49:29,562 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:49:29,563 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:49:29,565 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:49:29,565 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:49:29,565 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:49:29,566 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 08:49:29,567 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:49:29,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:49:29,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:49:29,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:49:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:49:29,608 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 08:49:29,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:49:29,630 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 08:49:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:49:29,664 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 08:49:29,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:49:29,665 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 08:49:29,670 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 08:49:29,671 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-06-22 08:49:29,705 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2020-06-22 08:49:29,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 08:49:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:49:29,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-06-22 08:49:29,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 08:49:29,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:49:29,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 08:49:29,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:49:29,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 08:49:29,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:49:29,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2020-06-22 08:49:29,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:49:29,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2020-06-22 08:49:29,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 08:49:29,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 08:49:29,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2020-06-22 08:49:29,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:49:29,727 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-06-22 08:49:29,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2020-06-22 08:49:29,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2020-06-22 08:49:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 08:49:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2020-06-22 08:49:29,756 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-06-22 08:49:29,756 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-06-22 08:49:29,756 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 08:49:29,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2020-06-22 08:49:29,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:49:29,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:49:29,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:49:29,758 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:49:29,758 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 08:49:29,758 INFO L794 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 66#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 67#L12 [2020-06-22 08:49:29,759 INFO L796 eck$LassoCheckResult]: Loop: 67#L12 [43] L12-->L15: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 61#L15 [44] L15-->L15-2: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_8) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} AuxVars[] AssignedVars[] 62#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 70#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 67#L12 [2020-06-22 08:49:29,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:29,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1994, now seen corresponding path program 1 times [2020-06-22 08:49:29,759 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:49:29,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:49:29,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:49:29,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:29,767 INFO L82 PathProgramCache]: Analyzing trace with hash 2247975, now seen corresponding path program 1 times [2020-06-22 08:49:29,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:49:29,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:49:29,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:49:29,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:49:29,810 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 08:49:29,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:49:29,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 08:49:29,815 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 08:49:29,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 08:49:29,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 08:49:29,818 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-06-22 08:49:29,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:49:29,854 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2020-06-22 08:49:29,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 08:49:29,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2020-06-22 08:49:29,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:49:29,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 11 states and 13 transitions. [2020-06-22 08:49:29,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 08:49:29,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 08:49:29,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2020-06-22 08:49:29,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:49:29,859 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-06-22 08:49:29,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2020-06-22 08:49:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2020-06-22 08:49:29,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 08:49:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-06-22 08:49:29,860 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-06-22 08:49:29,861 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-06-22 08:49:29,861 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 08:49:29,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2020-06-22 08:49:29,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:49:29,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:49:29,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:49:29,862 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:49:29,862 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 08:49:29,862 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~c~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 103#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 104#L12 [2020-06-22 08:49:29,863 INFO L796 eck$LassoCheckResult]: Loop: 104#L12 [43] L12-->L15: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 100#L15 [30] L15-->L15-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (= 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} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 101#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 107#L11-2 [41] L11-2-->L12: Formula: (< 0 (+ v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 104#L12 [2020-06-22 08:49:29,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:29,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1994, now seen corresponding path program 2 times [2020-06-22 08:49:29,863 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:49:29,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:49:29,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:49:29,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:29,870 INFO L82 PathProgramCache]: Analyzing trace with hash 2234521, now seen corresponding path program 1 times [2020-06-22 08:49:29,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:49:29,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:49:29,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,872 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:49:29,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:29,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1842811874, now seen corresponding path program 1 times [2020-06-22 08:49:29,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:49:29,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:49:29,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:49:29,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:49:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:49:29,925 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:49:29,925 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:49:29,925 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:49:29,926 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:49:29,926 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:49:29,926 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:29,926 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:49:29,926 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:49:29,926 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 08:49:29,926 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:49:29,926 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:49:29,928 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 08:49:29,935 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 08:49:29,939 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 08:49:29,950 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 08:49:30,021 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:49:30,021 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:30,024 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:49:30,024 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:49:30,051 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:49:30,052 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:30,057 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:49:30,057 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:49:30,084 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:49:30,084 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:30,089 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:49:30,089 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:49:30,120 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:49:30,121 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:49:30,239 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:49:30,243 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:49:30,243 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:49:30,243 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:49:30,244 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:49:30,244 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:49:30,244 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:49:30,244 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:49:30,244 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:49:30,244 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 08:49:30,244 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:49:30,244 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:49:30,246 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 08:49:30,249 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 08:49:30,252 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 08:49:30,262 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 08:49:30,313 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:49:30,313 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:49:30,314 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 08:49:30,315 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:49:30,315 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:49:30,315 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:49:30,315 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:49:30,317 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:49:30,318 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:49:30,321 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:49:30,322 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 08:49:30,324 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:49:30,324 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:49:30,324 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:49:30,324 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:49:30,326 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:49:30,326 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:49:30,332 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:49:30,333 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 08:49:30,333 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:49:30,333 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:49:30,334 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:49:30,334 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:49:30,334 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:49:30,335 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:49:30,335 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:49:30,340 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:49:30,345 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 08:49:30,345 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 08:49:30,346 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:49:30,346 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:49:30,347 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:49:30,347 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-06-22 08:49:30,347 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:49:30,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:49:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:49:30,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:49:30,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:49:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:49:30,374 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 08:49:30,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:49:30,399 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 08:49:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:49:30,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 08:49:30,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:49:30,427 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 08:49:30,427 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 08:49:30,427 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-06-22 08:49:30,474 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 21 states and 26 transitions. Complement of second has 11 states. [2020-06-22 08:49:30,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 08:49:30,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:49:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-06-22 08:49:30,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 08:49:30,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:49:30,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 08:49:30,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:49:30,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-22 08:49:30,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:49:30,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2020-06-22 08:49:30,480 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 08:49:30,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-06-22 08:49:30,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 08:49:30,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 08:49:30,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 08:49:30,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 08:49:30,481 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 08:49:30,481 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 08:49:30,481 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 08:49:30,481 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 08:49:30,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 08:49:30,481 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 08:49:30,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 08:49:30,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:49:30 BasicIcfg [2020-06-22 08:49:30,487 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 08:49:30,488 INFO L168 Benchmark]: Toolchain (without parser) took 2393.73 ms. Allocated memory was 649.6 MB in the beginning and 656.9 MB in the end (delta: 7.3 MB). Free memory was 566.2 MB in the beginning and 423.9 MB in the end (delta: 142.4 MB). Peak memory consumption was 149.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:49:30,489 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:49:30,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.23 ms. Allocated memory was 649.6 MB in the beginning and 656.9 MB in the end (delta: 7.3 MB). Free memory was 565.2 MB in the beginning and 622.2 MB in the end (delta: -57.0 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. [2020-06-22 08:49:30,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.24 ms. Allocated memory is still 656.9 MB. Free memory was 622.2 MB in the beginning and 621.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:49:30,491 INFO L168 Benchmark]: Boogie Preprocessor took 18.59 ms. Allocated memory is still 656.9 MB. Free memory was 621.1 MB in the beginning and 620.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:49:30,492 INFO L168 Benchmark]: RCFGBuilder took 189.67 ms. Allocated memory is still 656.9 MB. Free memory was 620.0 MB in the beginning and 606.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:49:30,492 INFO L168 Benchmark]: BlockEncodingV2 took 70.85 ms. Allocated memory is still 656.9 MB. Free memory was 606.2 MB in the beginning and 601.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:49:30,493 INFO L168 Benchmark]: TraceAbstraction took 150.14 ms. Allocated memory is still 656.9 MB. Free memory was 600.8 MB in the beginning and 592.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 08:49:30,493 INFO L168 Benchmark]: BuchiAutomizer took 1651.68 ms. Allocated memory is still 656.9 MB. Free memory was 592.2 MB in the beginning and 423.9 MB in the end (delta: 168.3 MB). Peak memory consumption was 168.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:49:30,497 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 5 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 274.23 ms. Allocated memory was 649.6 MB in the beginning and 656.9 MB in the end (delta: 7.3 MB). Free memory was 565.2 MB in the beginning and 622.2 MB in the end (delta: -57.0 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.24 ms. Allocated memory is still 656.9 MB. Free memory was 622.2 MB in the beginning and 621.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.59 ms. Allocated memory is still 656.9 MB. Free memory was 621.1 MB in the beginning and 620.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 189.67 ms. Allocated memory is still 656.9 MB. Free memory was 620.0 MB in the beginning and 606.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.85 ms. Allocated memory is still 656.9 MB. Free memory was 606.2 MB in the beginning and 601.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.14 ms. Allocated memory is still 656.9 MB. Free memory was 600.8 MB in the beginning and 592.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1651.68 ms. Allocated memory is still 656.9 MB. Free memory was 592.2 MB in the beginning and 423.9 MB in the end (delta: 168.3 MB). Peak memory consumption was 168.3 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: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 08:49:24.733 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 08:49:30.732 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check