YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 09:22:23,637 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 09:22:23,639 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 09:22:23,650 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 09:22:23,650 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 09:22:23,651 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 09:22:23,652 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 09:22:23,654 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 09:22:23,655 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 09:22:23,656 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 09:22:23,657 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 09:22:23,657 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 09:22:23,658 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 09:22:23,659 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 09:22:23,660 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 09:22:23,661 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 09:22:23,662 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 09:22:23,663 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 09:22:23,665 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 09:22:23,666 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 09:22:23,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 09:22:23,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 09:22:23,670 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 09:22:23,671 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 09:22:23,671 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 09:22:23,672 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 09:22:23,672 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 09:22:23,673 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 09:22:23,673 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 09:22:23,674 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 09:22:23,674 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 09:22:23,675 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 09:22:23,676 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 09:22:23,676 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 09:22:23,677 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 09:22:23,677 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 09:22:23,677 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 09:22:23,678 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 09:22:23,679 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 09:22:23,679 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 09:22:23,693 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 09:22:23,694 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 09:22:23,695 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 09:22:23,695 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 09:22:23,695 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 09:22:23,696 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:22:23,696 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 09:22:23,696 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 09:22:23,696 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 09:22:23,696 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 09:22:23,696 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 09:22:23,697 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 09:22:23,697 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 09:22:23,697 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 09:22:23,697 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:22:23,697 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 09:22:23,697 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 09:22:23,698 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 09:22:23,698 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 09:22:23,698 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 09:22:23,698 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 09:22:23,698 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 09:22:23,699 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 09:22:23,699 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 09:22:23,699 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:22:23,699 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 09:22:23,699 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 09:22:23,700 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 09:22:23,700 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 09:22:23,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 09:22:23,739 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 09:22:23,743 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 09:22:23,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 09:22:23,745 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 09:22:23,745 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:22:23,809 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/3750d39142144d7c820a1595da718dda/FLAG7f2c1587d [2020-06-22 09:22:24,136 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 09:22:24,137 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:22:24,143 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/3750d39142144d7c820a1595da718dda/FLAG7f2c1587d [2020-06-22 09:22:24,543 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/3750d39142144d7c820a1595da718dda [2020-06-22 09:22:24,555 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 09:22:24,556 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 09:22:24,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 09:22:24,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 09:22:24,561 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 09:22:24,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44798a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24, skipping insertion in model container [2020-06-22 09:22:24,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 09:22:24,590 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 09:22:24,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:22:24,750 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 09:22:24,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:22:24,838 INFO L195 MainTranslator]: Completed translation [2020-06-22 09:22:24,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24 WrapperNode [2020-06-22 09:22:24,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 09:22:24,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 09:22:24,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 09:22:24,839 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 09:22:24,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 09:22:24,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 09:22:24,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 09:22:24,876 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 09:22:24,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (1/1) ... [2020-06-22 09:22:24,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 09:22:24,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 09:22:24,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 09:22:24,897 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 09:22:24,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (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 09:22:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 09:22:24,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 09:22:25,112 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 09:22:25,112 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 09:22:25,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:22:25 BoogieIcfgContainer [2020-06-22 09:22:25,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 09:22:25,114 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 09:22:25,114 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 09:22:25,117 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 09:22:25,118 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:22:25" (1/1) ... [2020-06-22 09:22:25,133 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 09:22:25,135 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 09:22:25,135 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 09:22:25,136 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 09:22:25,136 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:22:25,138 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 09:22:25,139 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 09:22:25,140 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 09:22:25,155 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 09:22:25,173 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 09:22:25,177 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 09:22:25,179 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:22:25,191 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 09:22:25,193 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 09:22:25,194 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:22:25,194 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:22:25,194 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 09:22:25,195 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:22:25,195 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 09:22:25,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:22:25 BasicIcfg [2020-06-22 09:22:25,195 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 09:22:25,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 09:22:25,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 09:22:25,200 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 09:22:25,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 09:22:24" (1/4) ... [2020-06-22 09:22:25,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:22:25, skipping insertion in model container [2020-06-22 09:22:25,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (2/4) ... [2020-06-22 09:22:25,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:22:25, skipping insertion in model container [2020-06-22 09:22:25,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:22:25" (3/4) ... [2020-06-22 09:22:25,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:22:25, skipping insertion in model container [2020-06-22 09:22:25,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:22:25" (4/4) ... [2020-06-22 09:22:25,203 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:22:25,213 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 09:22:25,221 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 09:22:25,238 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 09:22:25,267 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:22:25,267 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 09:22:25,268 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 09:22:25,268 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:22:25,268 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:22:25,268 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:22:25,268 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 09:22:25,268 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:22:25,269 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 09:22:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 09:22:25,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 09:22:25,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 09:22:25,342 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 17 19) the Hoare annotation is: true [2020-06-22 09:22:25,342 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 19) no Hoare annotation was computed. [2020-06-22 09:22:25,342 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 09:22:25,342 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 13 23) the Hoare annotation is: true [2020-06-22 09:22:25,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:22:25 BasicIcfg [2020-06-22 09:22:25,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 09:22:25,351 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 09:22:25,351 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 09:22:25,355 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 09:22:25,355 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:22:25,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 09:22:24" (1/5) ... [2020-06-22 09:22:25,356 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5eb595d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:22:25, skipping insertion in model container [2020-06-22 09:22:25,356 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:22:25,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:22:24" (2/5) ... [2020-06-22 09:22:25,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5eb595d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:22:25, skipping insertion in model container [2020-06-22 09:22:25,357 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:22:25,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:22:25" (3/5) ... [2020-06-22 09:22:25,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5eb595d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:22:25, skipping insertion in model container [2020-06-22 09:22:25,358 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:22:25,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:22:25" (4/5) ... [2020-06-22 09:22:25,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5eb595d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:22:25, skipping insertion in model container [2020-06-22 09:22:25,358 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:22:25,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:22:25" (5/5) ... [2020-06-22 09:22:25,360 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:22:25,388 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:22:25,388 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 09:22:25,389 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 09:22:25,389 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:22:25,389 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:22:25,389 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:22:25,389 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 09:22:25,390 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:22:25,390 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 09:22:25,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 09:22:25,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:22:25,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:22:25,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:22:25,416 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:22:25,416 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:22:25,416 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 09:22:25,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 09:22:25,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:22:25,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:22:25,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:22:25,417 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:22:25,418 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:22:25,422 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [35] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 5#L13-2true [2020-06-22 09:22:25,423 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true [38] L13-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~tmp~0_5 v_ULTIMATE.start_main_~y~0_10) (= v_ULTIMATE.start_main_~xtmp~0_8 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 3#L17-2true [46] L17-2-->L17-3: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[] 6#L17-3true [40] L17-3-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~tmp~0_4) (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~xtmp~0_7)) InVars {ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L13-2true [2020-06-22 09:22:25,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:25,429 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-06-22 09:22:25,431 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:25,431 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:25,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:25,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:25,502 INFO L82 PathProgramCache]: Analyzing trace with hash 67775, now seen corresponding path program 1 times [2020-06-22 09:22:25,503 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:25,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:25,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:25,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:22:25,545 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 09:22:25,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 09:22:25,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 09:22:25,552 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 09:22:25,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 09:22:25,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 09:22:25,568 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-06-22 09:22:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 09:22:25,589 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-06-22 09:22:25,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 09:22:25,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 5 transitions. [2020-06-22 09:22:25,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:22:25,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 09:22:25,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 09:22:25,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 09:22:25,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2020-06-22 09:22:25,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:22:25,600 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 09:22:25,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2020-06-22 09:22:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-06-22 09:22:25,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:22:25,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 09:22:25,629 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 09:22:25,629 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 09:22:25,629 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 09:22:25,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2020-06-22 09:22:25,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:22:25,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:22:25,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:22:25,630 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:22:25,630 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:22:25,631 INFO L794 eck$LassoCheckResult]: Stem: 19#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= 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_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_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, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~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_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 20#L13-2 [2020-06-22 09:22:25,631 INFO L796 eck$LassoCheckResult]: Loop: 20#L13-2 [38] L13-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~tmp~0_5 v_ULTIMATE.start_main_~y~0_10) (= v_ULTIMATE.start_main_~xtmp~0_8 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 17#L17-2 [47] L17-2-->L17-3: Formula: (> v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~xtmp~0_4) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} AuxVars[] AssignedVars[] 18#L17-3 [40] L17-3-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~tmp~0_4) (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~xtmp~0_7)) InVars {ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 20#L13-2 [2020-06-22 09:22:25,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:25,638 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 2 times [2020-06-22 09:22:25,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:25,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:25,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:25,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:25,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:25,645 INFO L82 PathProgramCache]: Analyzing trace with hash 67806, now seen corresponding path program 1 times [2020-06-22 09:22:25,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:25,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:25,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,647 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 09:22:25,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:25,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:25,660 INFO L82 PathProgramCache]: Analyzing trace with hash 2004221, now seen corresponding path program 1 times [2020-06-22 09:22:25,660 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:25,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:25,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:25,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:25,744 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:22:25,745 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:22:25,745 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:22:25,746 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:22:25,746 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:22:25,746 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:22:25,746 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:22:25,746 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:22:25,746 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:22:25,746 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:22:25,747 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:22:25,765 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 09:22:25,790 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 09:22:25,793 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 09:22:25,888 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:22:25,889 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 09:22:25,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:22:25,897 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 09:22:25,941 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:22:25,941 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:22:27,257 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:22:27,261 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:22:27,261 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:22:27,261 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:22:27,261 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:22:27,261 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:22:27,261 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:22:27,262 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:22:27,262 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:22:27,262 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:22:27,262 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:22:27,262 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:22:27,264 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 09:22:27,268 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 09:22:27,283 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 09:22:27,356 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:22:27,362 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:22:27,363 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 09:22:27,365 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:22:27,365 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:22:27,365 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:22:27,366 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:22:27,370 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:22:27,370 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:22:27,379 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:22:27,380 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 09:22:27,380 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:22:27,381 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:22:27,381 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:22:27,381 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:22:27,381 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:22:27,383 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:22:27,383 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:22:27,404 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:22:27,416 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:22:27,416 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:22:27,418 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:22:27,418 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:22:27,418 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:22:27,419 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 09:22:27,420 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:22:27,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:22:27,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:22:27,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:22:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:22:27,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 09:22:27,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:22:27,493 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 09:22:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:27,527 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 09:22:27,527 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:22:27,530 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 09:22:27,531 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2020-06-22 09:22:27,642 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 14 states and 20 transitions. Complement of second has 11 states. [2020-06-22 09:22:27,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2020-06-22 09:22:27,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:22:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 15 transitions. [2020-06-22 09:22:27,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 09:22:27,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:27,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 09:22:27,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:27,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 09:22:27,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:27,654 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2020-06-22 09:22:27,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:22:27,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 18 transitions. [2020-06-22 09:22:27,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 09:22:27,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 09:22:27,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2020-06-22 09:22:27,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:22:27,657 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-06-22 09:22:27,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2020-06-22 09:22:27,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-06-22 09:22:27,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-06-22 09:22:27,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2020-06-22 09:22:27,671 INFO L729 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-06-22 09:22:27,671 INFO L609 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-06-22 09:22:27,671 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 09:22:27,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2020-06-22 09:22:27,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:22:27,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:22:27,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:22:27,672 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:22:27,673 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 09:22:27,673 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= 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_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_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, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~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_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 92#L13-2 [38] L13-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~tmp~0_5 v_ULTIMATE.start_main_~y~0_10) (= v_ULTIMATE.start_main_~xtmp~0_8 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 86#L17-2 [2020-06-22 09:22:27,673 INFO L796 eck$LassoCheckResult]: Loop: 86#L17-2 [33] L17-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~xtmp~0_6) (= v_ULTIMATE.start_main_~xtmp~0_5 (+ v_ULTIMATE.start_main_~xtmp~0_6 (* (- 1) v_ULTIMATE.start_main_~y~0_7)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~xtmp~0] 87#L17-2 [47] L17-2-->L17-3: Formula: (> v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~xtmp~0_4) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} AuxVars[] AssignedVars[] 95#L17-3 [40] L17-3-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~tmp~0_4) (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~xtmp~0_7)) InVars {ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 93#L13-2 [38] L13-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~tmp~0_5 v_ULTIMATE.start_main_~y~0_10) (= v_ULTIMATE.start_main_~xtmp~0_8 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 86#L17-2 [2020-06-22 09:22:27,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:27,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2084, now seen corresponding path program 1 times [2020-06-22 09:22:27,675 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:27,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:27,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:27,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:27,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:27,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:27,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1953069, now seen corresponding path program 1 times [2020-06-22 09:22:27,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:27,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:27,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:27,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:27,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:27,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:27,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1925647312, now seen corresponding path program 1 times [2020-06-22 09:22:27,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:27,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:27,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:27,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:27,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:27,784 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:22:27,785 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:22:27,785 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:22:27,785 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:22:27,785 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:22:27,785 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:22:27,785 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:22:27,785 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:22:27,785 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:22:27,786 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:22:27,786 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:22:27,788 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 09:22:27,791 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 09:22:27,794 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 09:22:27,892 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:22:27,893 INFO L412 LassoAnalysis]: Checking for nontermination... 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 09:22:27,901 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:22:27,902 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:22:27,933 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:22:27,933 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/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 09:22:27,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:22:27,938 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:22:27,966 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:22:27,967 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/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:22:27,974 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:22:27,974 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 09:22:28,014 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:22:28,014 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:22:28,550 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:22:28,554 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:22:28,554 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:22:28,554 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:22:28,554 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:22:28,554 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:22:28,554 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:22:28,555 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:22:28,555 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:22:28,555 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:22:28,555 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:22:28,555 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:22:28,557 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 09:22:28,561 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 09:22:28,583 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 09:22:28,650 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:22:28,650 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:22:28,650 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 09:22:28,651 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:22:28,651 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:22:28,651 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:22:28,652 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:22:28,653 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:22:28,654 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:22:28,657 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:22:28,657 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 09:22:28,658 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:22:28,658 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:22:28,658 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:22:28,658 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:22:28,659 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:22:28,660 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:22:28,660 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:22:28,668 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:22:28,680 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 09:22:28,680 INFO L444 ModelExtractionUtils]: 1 out of 6 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 09:22:28,681 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:22:28,681 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:22:28,681 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:22:28,681 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0, ULTIMATE.start_main_~tmp~0) = 1*ULTIMATE.start_main_~xtmp~0 + 1*ULTIMATE.start_main_~tmp~0 Supporting invariants [] [2020-06-22 09:22:28,681 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:22:28,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:22:28,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:22:28,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:22:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:22:28,715 WARN L254 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 10 conjunts are in the unsatisfiable core [2020-06-22 09:22:28,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:22:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:22:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:22:28,772 WARN L254 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 9 conjunts are in the unsatisfiable core [2020-06-22 09:22:28,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:22:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:28,898 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 09:22:28,898 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 10 predicates after loop cannibalization [2020-06-22 09:22:28,898 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 10 loop predicates [2020-06-22 09:22:28,899 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-06-22 09:22:29,300 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 17 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 56 states and 75 transitions. Complement of second has 32 states. [2020-06-22 09:22:29,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2020-06-22 09:22:29,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 09:22:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 18 transitions. [2020-06-22 09:22:29,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 09:22:29,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:29,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 18 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 09:22:29,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:29,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 18 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-22 09:22:29,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:29,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 75 transitions. [2020-06-22 09:22:29,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 09:22:29,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 27 states and 40 transitions. [2020-06-22 09:22:29,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 09:22:29,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 09:22:29,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 40 transitions. [2020-06-22 09:22:29,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:22:29,330 INFO L706 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2020-06-22 09:22:29,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 40 transitions. [2020-06-22 09:22:29,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 14. [2020-06-22 09:22:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 09:22:29,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2020-06-22 09:22:29,333 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-06-22 09:22:29,334 INFO L609 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-06-22 09:22:29,334 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 09:22:29,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2020-06-22 09:22:29,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 09:22:29,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:22:29,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:22:29,335 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 09:22:29,335 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 09:22:29,335 INFO L794 eck$LassoCheckResult]: Stem: 256#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= 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_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_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, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~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_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 257#L13-2 [38] L13-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~tmp~0_5 v_ULTIMATE.start_main_~y~0_10) (= v_ULTIMATE.start_main_~xtmp~0_8 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 258#L17-2 [33] L17-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~xtmp~0_6) (= v_ULTIMATE.start_main_~xtmp~0_5 (+ v_ULTIMATE.start_main_~xtmp~0_6 (* (- 1) v_ULTIMATE.start_main_~y~0_7)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~xtmp~0] 253#L17-2 [2020-06-22 09:22:29,336 INFO L796 eck$LassoCheckResult]: Loop: 253#L17-2 [33] L17-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~xtmp~0_6) (= v_ULTIMATE.start_main_~xtmp~0_5 (+ v_ULTIMATE.start_main_~xtmp~0_6 (* (- 1) v_ULTIMATE.start_main_~y~0_7)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~xtmp~0] 253#L17-2 [2020-06-22 09:22:29,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:29,336 INFO L82 PathProgramCache]: Analyzing trace with hash 64637, now seen corresponding path program 1 times [2020-06-22 09:22:29,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:29,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:29,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:29,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:29,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:29,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:29,347 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-06-22 09:22:29,347 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:29,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:29,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:29,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:29,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:29,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:29,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2003780, now seen corresponding path program 2 times [2020-06-22 09:22:29,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:22:29,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:22:29,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:29,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:22:29,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:22:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:22:29,375 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:22:29,376 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:22:29,376 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:22:29,376 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:22:29,376 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:22:29,376 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:22:29,376 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:22:29,376 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:22:29,376 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 09:22:29,376 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:22:29,377 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:22:29,378 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 09:22:29,385 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 09:22:29,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:22:29,423 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:22:29,423 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 09:22:29,427 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:22:29,427 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 09:22:29,459 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:22:29,459 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:22:29,592 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:22:29,595 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:22:29,595 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:22:29,595 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:22:29,595 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:22:29,596 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:22:29,596 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:22:29,603 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:22:29,604 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:22:29,604 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 09:22:29,604 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:22:29,604 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:22:29,606 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 09:22:29,616 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 09:22:29,618 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 09:22:29,649 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:22:29,649 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:22:29,649 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 09:22:29,650 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:22:29,650 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:22:29,650 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:22:29,651 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:22:29,651 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:22:29,651 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:22:29,651 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:22:29,655 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:22:29,658 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 09:22:29,658 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 09:22:29,659 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:22:29,659 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:22:29,659 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:22:29,659 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2020-06-22 09:22:29,660 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:22:29,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:22:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:22:29,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:22:29,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:22:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:22:29,687 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 09:22:29,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:22:29,687 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 09:22:29,688 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 09:22:29,688 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 09:22:29,688 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 21 transitions. cyclomatic complexity: 10 Second operand 2 states. [2020-06-22 09:22:29,700 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 21 transitions. cyclomatic complexity: 10. Second operand 2 states. Result 19 states and 26 transitions. Complement of second has 4 states. [2020-06-22 09:22:29,700 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 09:22:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 09:22:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 09:22:29,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 09:22:29,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:29,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2020-06-22 09:22:29,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:29,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 09:22:29,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:22:29,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-06-22 09:22:29,704 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:22:29,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2020-06-22 09:22:29,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 09:22:29,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 09:22:29,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 09:22:29,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:22:29,704 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:22:29,704 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:22:29,704 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:22:29,705 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 09:22:29,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 09:22:29,705 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:22:29,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 09:22:29,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:22:29 BasicIcfg [2020-06-22 09:22:29,711 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 09:22:29,711 INFO L168 Benchmark]: Toolchain (without parser) took 5155.76 ms. Allocated memory was 514.9 MB in the beginning and 584.1 MB in the end (delta: 69.2 MB). Free memory was 440.3 MB in the beginning and 531.7 MB in the end (delta: -91.4 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:22:29,713 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 462.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:22:29,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.29 ms. Allocated memory was 514.9 MB in the beginning and 544.2 MB in the end (delta: 29.4 MB). Free memory was 440.3 MB in the beginning and 513.8 MB in the end (delta: -73.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-06-22 09:22:29,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.48 ms. Allocated memory is still 544.2 MB. Free memory was 513.8 MB in the beginning and 512.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-06-22 09:22:29,715 INFO L168 Benchmark]: Boogie Preprocessor took 20.40 ms. Allocated memory is still 544.2 MB. Free memory was 512.2 MB in the beginning and 510.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-06-22 09:22:29,715 INFO L168 Benchmark]: RCFGBuilder took 217.25 ms. Allocated memory is still 544.2 MB. Free memory was 510.2 MB in the beginning and 499.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. [2020-06-22 09:22:29,716 INFO L168 Benchmark]: BlockEncodingV2 took 81.33 ms. Allocated memory is still 544.2 MB. Free memory was 499.4 MB in the beginning and 493.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 50.3 GB. [2020-06-22 09:22:29,717 INFO L168 Benchmark]: TraceAbstraction took 154.21 ms. Allocated memory is still 544.2 MB. Free memory was 493.5 MB in the beginning and 484.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. [2020-06-22 09:22:29,717 INFO L168 Benchmark]: BuchiAutomizer took 4359.69 ms. Allocated memory was 544.2 MB in the beginning and 584.1 MB in the end (delta: 39.8 MB). Free memory was 484.3 MB in the beginning and 531.7 MB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:22:29,721 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 462.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 281.29 ms. Allocated memory was 514.9 MB in the beginning and 544.2 MB in the end (delta: 29.4 MB). Free memory was 440.3 MB in the beginning and 513.8 MB in the end (delta: -73.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.48 ms. Allocated memory is still 544.2 MB. Free memory was 513.8 MB in the beginning and 512.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.40 ms. Allocated memory is still 544.2 MB. Free memory was 512.2 MB in the beginning and 510.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * RCFGBuilder took 217.25 ms. Allocated memory is still 544.2 MB. Free memory was 510.2 MB in the beginning and 499.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 81.33 ms. Allocated memory is still 544.2 MB. Free memory was 499.4 MB in the beginning and 493.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.21 ms. Allocated memory is still 544.2 MB. Free memory was 493.5 MB in the beginning and 484.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4359.69 ms. Allocated memory was 544.2 MB in the beginning and 584.1 MB in the end (delta: 39.8 MB). Free memory was 484.3 MB in the beginning and 531.7 MB in the end (delta: -47.4 MB). There was no memory consumed. 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 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function xtmp + tmp and consists of 9 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 14 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 16 SDtfs, 31 SDslu, 0 SDs, 0 SdLazy, 102 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax161 hnf97 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf91 smp100 dnf100 smp100 tf107 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 09:22:21.348 ----------------------------------------------- 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 09:22:29.953 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check