YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:28:27,163 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:28:27,165 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:28:27,177 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:28:27,177 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:28:27,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:28:27,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:28:27,180 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:28:27,182 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:28:27,183 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:28:27,184 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:28:27,184 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:28:27,185 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:28:27,185 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:28:27,187 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:28:27,187 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:28:27,188 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:28:27,190 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:28:27,192 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:28:27,193 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:28:27,194 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:28:27,195 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:28:27,197 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:28:27,198 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:28:27,198 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:28:27,199 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:28:27,199 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:28:27,200 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:28:27,200 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:28:27,201 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:28:27,201 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:28:27,202 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:28:27,203 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:28:27,203 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:28:27,204 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:28:27,204 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:28:27,204 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:28:27,205 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:28:27,206 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:28:27,206 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 02:28:27,220 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:28:27,221 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:28:27,222 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:28:27,222 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:28:27,222 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:28:27,222 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:28:27,222 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:28:27,222 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:28:27,223 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:28:27,223 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:28:27,223 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:28:27,223 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:28:27,223 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:28:27,223 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:28:27,224 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:27,224 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:28:27,224 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:28:27,224 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:28:27,224 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:28:27,224 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:28:27,225 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:28:27,225 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:28:27,225 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:28:27,225 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:28:27,225 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:28:27,225 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:28:27,225 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:28:27,226 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:28:27,226 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:28:27,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:28:27,264 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:28:27,267 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:28:27,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:28:27,269 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:28:27,270 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 02:28:27,339 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/e29147d8da754a68a7c0dbe6e6ae5e75/FLAG3b1290a5a [2020-06-22 02:28:27,670 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:28:27,671 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 02:28:27,677 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/e29147d8da754a68a7c0dbe6e6ae5e75/FLAG3b1290a5a [2020-06-22 02:28:28,078 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/e29147d8da754a68a7c0dbe6e6ae5e75 [2020-06-22 02:28:28,090 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:28:28,091 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:28:28,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:28:28,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:28:28,097 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:28:28,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2304b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28, skipping insertion in model container [2020-06-22 02:28:28,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:28:28,130 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:28:28,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:28:28,292 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:28:28,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:28:28,385 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:28:28,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28 WrapperNode [2020-06-22 02:28:28,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:28:28,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:28:28,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:28:28,386 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:28:28,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:28:28,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:28:28,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:28:28,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:28:28,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:28:28,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:28:28,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:28:28,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:28:28,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (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 02:28:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-06-22 02:28:28,505 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-06-22 02:28:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-06-22 02:28:28,505 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-06-22 02:28:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:28:28,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:28:28,649 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:28:28,650 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2020-06-22 02:28:28,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:28:28 BoogieIcfgContainer [2020-06-22 02:28:28,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:28:28,652 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:28:28,652 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:28:28,654 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:28:28,655 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:28:28" (1/1) ... [2020-06-22 02:28:28,673 INFO L313 BlockEncoder]: Initial Icfg 22 locations, 26 edges [2020-06-22 02:28:28,674 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:28:28,675 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:28:28,675 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:28:28,676 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:28:28,677 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:28:28,678 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:28:28,678 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:28:28,696 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:28:28,712 INFO L200 BlockEncoder]: SBE split 3 edges [2020-06-22 02:28:28,716 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:28:28,718 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:28:28,728 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 02:28:28,730 INFO L70 RemoveSinkStates]: Removed 5 edges and 3 locations by removing sink states [2020-06-22 02:28:28,732 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:28:28,732 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:28:28,737 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 02:28:28,738 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:28:28,738 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:28:28,738 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:28:28,739 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:28:28,739 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:28:28,739 INFO L313 BlockEncoder]: Encoded RCFG 16 locations, 21 edges [2020-06-22 02:28:28,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:28:28 BasicIcfg [2020-06-22 02:28:28,740 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:28:28,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:28:28,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:28:28,745 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:28:28,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:28:28" (1/4) ... [2020-06-22 02:28:28,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd7daff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:28:28, skipping insertion in model container [2020-06-22 02:28:28,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (2/4) ... [2020-06-22 02:28:28,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd7daff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:28:28, skipping insertion in model container [2020-06-22 02:28:28,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:28:28" (3/4) ... [2020-06-22 02:28:28,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd7daff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:28:28, skipping insertion in model container [2020-06-22 02:28:28,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:28:28" (4/4) ... [2020-06-22 02:28:28,749 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:28:28,760 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:28:28,768 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:28:28,785 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:28:28,813 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:28:28,814 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:28:28,814 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:28:28,815 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:28:28,815 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:28:28,815 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:28:28,815 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:28:28,815 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:28:28,816 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:28:28,833 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-06-22 02:28:28,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:28:28,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-06-22 02:28:28,907 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 17 23) no Hoare annotation was computed. [2020-06-22 02:28:28,907 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 17 23) the Hoare annotation is: true [2020-06-22 02:28:28,908 INFO L451 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: true [2020-06-22 02:28:28,908 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-06-22 02:28:28,908 INFO L448 ceAbstractionStarter]: For program point fFINAL(lines 17 23) no Hoare annotation was computed. [2020-06-22 02:28:28,908 INFO L451 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: true [2020-06-22 02:28:28,908 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-06-22 02:28:28,909 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-06-22 02:28:28,909 INFO L451 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: true [2020-06-22 02:28:28,909 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-06-22 02:28:28,909 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-06-22 02:28:28,909 INFO L448 ceAbstractionStarter]: For program point gEXIT(lines 25 31) no Hoare annotation was computed. [2020-06-22 02:28:28,909 INFO L448 ceAbstractionStarter]: For program point gFINAL(lines 25 31) no Hoare annotation was computed. [2020-06-22 02:28:28,910 INFO L451 ceAbstractionStarter]: At program point gENTRY(lines 25 31) the Hoare annotation is: true [2020-06-22 02:28:28,910 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:28:28,910 INFO L451 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: true [2020-06-22 02:28:28,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:28:28 BasicIcfg [2020-06-22 02:28:28,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:28:28,915 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:28:28,915 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:28:28,919 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:28:28,919 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:28:28,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:28:28" (1/5) ... [2020-06-22 02:28:28,920 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@622b0c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:28:28, skipping insertion in model container [2020-06-22 02:28:28,920 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:28:28,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:28:28" (2/5) ... [2020-06-22 02:28:28,921 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@622b0c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:28:28, skipping insertion in model container [2020-06-22 02:28:28,921 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:28:28,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:28:28" (3/5) ... [2020-06-22 02:28:28,921 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@622b0c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:28:28, skipping insertion in model container [2020-06-22 02:28:28,922 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:28:28,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:28:28" (4/5) ... [2020-06-22 02:28:28,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@622b0c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:28:28, skipping insertion in model container [2020-06-22 02:28:28,922 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:28:28,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:28:28" (5/5) ... [2020-06-22 02:28:28,924 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:28:28,950 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:28:28,950 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:28:28,950 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:28:28,951 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:28:28,951 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:28:28,951 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:28:28,951 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:28:28,951 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:28:28,951 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:28:28,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-06-22 02:28:28,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 02:28:28,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:28:28,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:28:28,983 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 02:28:28,983 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:28:28,984 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:28:28,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-06-22 02:28:28,986 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 02:28:28,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:28:28,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:28:28,986 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 02:28:28,986 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:28:28,992 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue [77] ULTIMATE.startENTRY-->L37: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~b~0] 3#L37true [41] L37-->fENTRY: Formula: (and (= |v_f_#in~aInParam_2| v_ULTIMATE.start_main_~a~0_7) (= |v_f_#in~bInParam_2| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{f_#in~b=|v_f_#in~bInParam_2|, f_#in~a=|v_f_#in~aInParam_2|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 17#fENTRYtrue [2020-06-22 02:28:28,992 INFO L796 eck$LassoCheckResult]: Loop: 17#fENTRYtrue [54] fENTRY-->L18: Formula: (and (= v_f_~b_1 |v_f_#in~b_1|) (= v_f_~a_1 |v_f_#in~a_1|)) InVars {f_#in~b=|v_f_#in~b_1|, f_#in~a=|v_f_#in~a_1|} OutVars{f_~a=v_f_~a_1, f_#in~a=|v_f_#in~a_1|, f_#in~b=|v_f_#in~b_1|, f_~b=v_f_~b_1} AuxVars[] AssignedVars[f_~a, f_~b] 10#L18true [71] L18-->L21: Formula: (> 0 v_f_~b_3) InVars {f_~b=v_f_~b_3} OutVars{f_~b=v_f_~b_3} AuxVars[] AssignedVars[] 4#L21true [40] L21-->fENTRY: Formula: (and (= |v_f_#in~aInParam_1| (+ v_f_~a_5 1)) (= |v_f_#in~bInParam_1| (+ v_f_~b_5 (- 1)))) InVars {f_~a=v_f_~a_5, f_~b=v_f_~b_5} OutVars{f_#in~b=|v_f_#in~bInParam_1|, f_#in~a=|v_f_#in~aInParam_1|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 17#fENTRYtrue [2020-06-22 02:28:28,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:28,998 INFO L82 PathProgramCache]: Analyzing trace with hash 3389, now seen corresponding path program 1 times [2020-06-22 02:28:29,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:29,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:29,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:29,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:29,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:29,070 INFO L82 PathProgramCache]: Analyzing trace with hash 83926, now seen corresponding path program 1 times [2020-06-22 02:28:29,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:29,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:29,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:29,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:29,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:29,085 INFO L82 PathProgramCache]: Analyzing trace with hash 101015834, now seen corresponding path program 1 times [2020-06-22 02:28:29,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:29,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:29,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:29,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:28:29,155 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 02:28:29,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 02:28:29,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 02:28:29,228 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:28:29,230 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:28:29,230 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:28:29,230 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:28:29,230 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:28:29,230 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:29,230 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:28:29,231 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:28:29,231 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:28:29,231 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:28:29,231 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:28:29,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:28:29,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:28:29,267 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 02:28:29,274 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 02:28:29,282 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 02:28:29,285 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 02:28:29,288 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 02:28:29,352 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:28:29,353 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 02:28:29,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:29,361 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 02:28:29,395 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:29,395 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:29,416 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:29,416 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#in~b=-1} Honda state: {f_#in~b=-1} Generalized eigenvectors: [{f_#in~b=0}, {f_#in~b=-1}, {f_#in~b=0}] Lambdas: [8, 1, 8] Nus: [0, 0] 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 02:28:29,445 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:29,445 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:29,475 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:29,475 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:29,492 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:29,492 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#in~a=0} Honda state: {f_#in~a=0} Generalized eigenvectors: [{f_#in~a=2}, {f_#in~a=-1}, {f_#in~a=0}] Lambdas: [1, 1, 9] Nus: [0, 0] 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 02:28:29,519 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:29,519 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:29,523 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:29,523 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret1=0} Honda state: {f_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 02:28:29,549 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:29,549 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:29,553 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:29,553 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~b=0} Honda state: {f_~b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 02:28:29,579 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:29,580 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:29,583 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:29,583 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 02:28:29,609 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:29,610 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:29,613 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:29,613 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~a=0} Honda state: {f_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:29,639 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:29,640 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:29,643 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:29,643 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret0=0} Honda state: {f_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 02:28:29,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 02:28:29,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 02:28:29,684 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-06-22 02:28:29,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:28:29,766 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2020-06-22 02:28:29,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 02:28:29,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2020-06-22 02:28:29,774 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-06-22 02:28:29,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 14 states and 18 transitions. [2020-06-22 02:28:29,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-06-22 02:28:29,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-06-22 02:28:29,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2020-06-22 02:28:29,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:28:29,782 INFO L706 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-06-22 02:28:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2020-06-22 02:28:29,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2020-06-22 02:28:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 02:28:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2020-06-22 02:28:29,813 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-06-22 02:28:29,813 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-06-22 02:28:29,813 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:28:29,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-06-22 02:28:29,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 02:28:29,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:28:29,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:28:29,814 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 02:28:29,814 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:28:29,815 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY [77] ULTIMATE.startENTRY-->L37: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~b~0] 60#L37 [41] L37-->fENTRY: Formula: (and (= |v_f_#in~aInParam_2| v_ULTIMATE.start_main_~a~0_7) (= |v_f_#in~bInParam_2| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{f_#in~b=|v_f_#in~bInParam_2|, f_#in~a=|v_f_#in~aInParam_2|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 62#fENTRY [54] fENTRY-->L18: Formula: (and (= v_f_~b_1 |v_f_#in~b_1|) (= v_f_~a_1 |v_f_#in~a_1|)) InVars {f_#in~b=|v_f_#in~b_1|, f_#in~a=|v_f_#in~a_1|} OutVars{f_~a=v_f_~a_1, f_#in~a=|v_f_#in~a_1|, f_#in~b=|v_f_#in~b_1|, f_~b=v_f_~b_1} AuxVars[] AssignedVars[f_~a, f_~b] 69#L18 [72] L18-->L21: Formula: (< 0 v_f_~b_3) InVars {f_~b=v_f_~b_3} OutVars{f_~b=v_f_~b_3} AuxVars[] AssignedVars[] 59#L21 [2020-06-22 02:28:29,815 INFO L796 eck$LassoCheckResult]: Loop: 59#L21 [40] L21-->fENTRY: Formula: (and (= |v_f_#in~aInParam_1| (+ v_f_~a_5 1)) (= |v_f_#in~bInParam_1| (+ v_f_~b_5 (- 1)))) InVars {f_~a=v_f_~a_5, f_~b=v_f_~b_5} OutVars{f_#in~b=|v_f_#in~bInParam_1|, f_#in~a=|v_f_#in~aInParam_1|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 61#fENTRY [54] fENTRY-->L18: Formula: (and (= v_f_~b_1 |v_f_#in~b_1|) (= v_f_~a_1 |v_f_#in~a_1|)) InVars {f_#in~b=|v_f_#in~b_1|, f_#in~a=|v_f_#in~a_1|} OutVars{f_~a=v_f_~a_1, f_#in~a=|v_f_#in~a_1|, f_#in~b=|v_f_#in~b_1|, f_~b=v_f_~b_1} AuxVars[] AssignedVars[f_~a, f_~b] 68#L18 [71] L18-->L21: Formula: (> 0 v_f_~b_3) InVars {f_~b=v_f_~b_3} OutVars{f_~b=v_f_~b_3} AuxVars[] AssignedVars[] 59#L21 [2020-06-22 02:28:29,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:29,815 INFO L82 PathProgramCache]: Analyzing trace with hash 3258575, now seen corresponding path program 1 times [2020-06-22 02:28:29,816 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:29,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:29,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:29,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:29,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:29,826 INFO L82 PathProgramCache]: Analyzing trace with hash 69976, now seen corresponding path program 2 times [2020-06-22 02:28:29,826 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:29,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:29,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:29,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:29,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:29,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1707999798, now seen corresponding path program 1 times [2020-06-22 02:28:29,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:29,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:29,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,836 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:28:29,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:28:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 02:28:29,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 02:28:29,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 02:28:29,914 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:28:29,914 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:28:29,914 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:28:29,914 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:28:29,914 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:28:29,914 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:29,914 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:28:29,915 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:28:29,915 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:28:29,915 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:28:29,915 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:28:29,916 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 02:28:29,919 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 02:28:29,929 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 02:28:29,931 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 02:28:29,934 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 02:28:30,015 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:28:30,015 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-06-22 02:28:30,025 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:30,025 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:30,029 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:30,029 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:30,060 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:30,060 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:30,097 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:30,097 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:30,291 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:30,292 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#in~b=-8, f_~b=-8} Honda state: {f_#in~b=-8, f_~b=-8} Generalized eigenvectors: [{f_#in~b=-5, f_~b=-1}, {f_#in~b=4, f_~b=0}, {f_#in~b=0, f_~b=0}] Lambdas: [1, 0, 8] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:30,323 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:30,323 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:30,327 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:30,328 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret0=0} Honda state: {f_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:30,356 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:30,357 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:30,361 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:30,361 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret1=0} Honda state: {f_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:30,391 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:30,391 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:30,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:30,430 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:30,803 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:30,804 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~a=-7, f_#in~a=-7} Honda state: {f_~a=-7, f_#in~a=-7} Generalized eigenvectors: [{f_~a=4, f_#in~a=4}, {f_~a=5, f_#in~a=5}, {f_~a=-8, f_#in~a=-8}] Lambdas: [1, 1, 1] Nus: [0, 0] [2020-06-22 02:28:30,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 02:28:30,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-06-22 02:28:30,829 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. cyclomatic complexity: 6 Second operand 5 states. [2020-06-22 02:28:30,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:28:30,875 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2020-06-22 02:28:30,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-06-22 02:28:30,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2020-06-22 02:28:30,877 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 02:28:30,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2020-06-22 02:28:30,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-06-22 02:28:30,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-06-22 02:28:30,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2020-06-22 02:28:30,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:28:30,879 INFO L706 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-06-22 02:28:30,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2020-06-22 02:28:30,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2020-06-22 02:28:30,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-22 02:28:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-06-22 02:28:30,881 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-06-22 02:28:30,881 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-06-22 02:28:30,881 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 02:28:30,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2020-06-22 02:28:30,882 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-06-22 02:28:30,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:28:30,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:28:30,883 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 02:28:30,883 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:28:30,883 INFO L794 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRY [77] ULTIMATE.startENTRY-->L37: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~b~0] 98#L37 [41] L37-->fENTRY: Formula: (and (= |v_f_#in~aInParam_2| v_ULTIMATE.start_main_~a~0_7) (= |v_f_#in~bInParam_2| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{f_#in~b=|v_f_#in~bInParam_2|, f_#in~a=|v_f_#in~aInParam_2|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 99#fENTRY [2020-06-22 02:28:30,883 INFO L796 eck$LassoCheckResult]: Loop: 99#fENTRY [54] fENTRY-->L18: Formula: (and (= v_f_~b_1 |v_f_#in~b_1|) (= v_f_~a_1 |v_f_#in~a_1|)) InVars {f_#in~b=|v_f_#in~b_1|, f_#in~a=|v_f_#in~a_1|} OutVars{f_~a=v_f_~a_1, f_#in~a=|v_f_#in~a_1|, f_#in~b=|v_f_#in~b_1|, f_~b=v_f_~b_1} AuxVars[] AssignedVars[f_~a, f_~b] 106#L18 [72] L18-->L21: Formula: (< 0 v_f_~b_3) InVars {f_~b=v_f_~b_3} OutVars{f_~b=v_f_~b_3} AuxVars[] AssignedVars[] 100#L21 [40] L21-->fENTRY: Formula: (and (= |v_f_#in~aInParam_1| (+ v_f_~a_5 1)) (= |v_f_#in~bInParam_1| (+ v_f_~b_5 (- 1)))) InVars {f_~a=v_f_~a_5, f_~b=v_f_~b_5} OutVars{f_#in~b=|v_f_#in~bInParam_1|, f_#in~a=|v_f_#in~aInParam_1|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 99#fENTRY [2020-06-22 02:28:30,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:30,884 INFO L82 PathProgramCache]: Analyzing trace with hash 3389, now seen corresponding path program 2 times [2020-06-22 02:28:30,884 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:30,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:30,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:30,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:30,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:30,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:30,890 INFO L82 PathProgramCache]: Analyzing trace with hash 83957, now seen corresponding path program 1 times [2020-06-22 02:28:30,890 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:30,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:30,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:30,891 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:28:30,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:30,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:30,899 INFO L82 PathProgramCache]: Analyzing trace with hash 101015865, now seen corresponding path program 1 times [2020-06-22 02:28:30,899 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:30,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:30,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:30,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:30,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:30,954 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:28:30,954 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:28:30,954 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:28:30,954 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:28:30,954 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:28:30,954 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:30,954 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:28:30,954 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:28:30,955 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:28:30,955 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:28:30,955 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:28:30,956 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 02:28:30,958 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 02:28:30,960 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 02:28:30,967 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 02:28:30,968 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 02:28:30,970 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 02:28:30,972 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 02:28:31,010 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:28:31,010 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,013 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:31,014 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:31,019 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:31,019 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,048 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:31,049 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:31,052 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:31,052 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret1=0} Honda state: {f_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:31,085 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,115 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:31,115 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:31,144 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:28:31,146 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:28:31,146 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:28:31,147 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:28:31,147 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:28:31,147 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:28:31,147 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:28:31,147 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:28:31,147 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:28:31,148 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:28:31,148 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:28:31,148 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:28:31,149 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 02:28:31,151 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 02:28:31,158 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 02:28:31,160 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 02:28:31,162 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 02:28:31,164 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 02:28:31,166 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 02:28:31,211 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:28:31,217 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:28:31,219 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 02:28:31,221 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:28:31,221 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:28:31,221 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:28:31,222 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:28:31,222 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:28:31,224 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:28:31,224 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:28:31,227 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:28:31,227 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 02:28:31,228 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:28:31,228 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:28:31,228 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:28:31,228 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:28:31,228 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:28:31,229 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:28:31,229 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:28:31,233 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:28:31,237 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:28:31,237 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:28:31,240 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:28:31,240 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:28:31,240 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:28:31,241 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~b) = 1*f_#in~b Supporting invariants [] [2020-06-22 02:28:31,242 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:28:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:28:31,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:28:31,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:28:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:28:31,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 02:28:31,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:28:31,318 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 02:28:31,329 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:28:31,332 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 02:28:31,333 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-06-22 02:28:31,408 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 19 states and 22 transitions. Complement of second has 12 states. [2020-06-22 02:28:31,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 02:28:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 02:28:31,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-06-22 02:28:31,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 02:28:31,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:28:31,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 02:28:31,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:28:31,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 02:28:31,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:28:31,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2020-06-22 02:28:31,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:28:31,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 15 states and 18 transitions. [2020-06-22 02:28:31,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 02:28:31,440 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-06-22 02:28:31,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2020-06-22 02:28:31,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:28:31,440 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-06-22 02:28:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2020-06-22 02:28:31,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2020-06-22 02:28:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 02:28:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-06-22 02:28:31,442 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-06-22 02:28:31,442 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-06-22 02:28:31,442 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 02:28:31,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-06-22 02:28:31,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:28:31,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:28:31,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:28:31,443 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-06-22 02:28:31,443 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:28:31,444 INFO L794 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY [77] ULTIMATE.startENTRY-->L37: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~b~0] 176#L37 [41] L37-->fENTRY: Formula: (and (= |v_f_#in~aInParam_2| v_ULTIMATE.start_main_~a~0_7) (= |v_f_#in~bInParam_2| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{f_#in~b=|v_f_#in~bInParam_2|, f_#in~a=|v_f_#in~aInParam_2|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 177#fENTRY [54] fENTRY-->L18: Formula: (and (= v_f_~b_1 |v_f_#in~b_1|) (= v_f_~a_1 |v_f_#in~a_1|)) InVars {f_#in~b=|v_f_#in~b_1|, f_#in~a=|v_f_#in~a_1|} OutVars{f_~a=v_f_~a_1, f_#in~a=|v_f_#in~a_1|, f_#in~b=|v_f_#in~b_1|, f_~b=v_f_~b_1} AuxVars[] AssignedVars[f_~a, f_~b] 184#L18 [47] L18-->L19: Formula: (= 0 v_f_~b_2) InVars {f_~b=v_f_~b_2} OutVars{f_~b=v_f_~b_2} AuxVars[] AssignedVars[] 180#L19 [45] L19-->gENTRY: Formula: (and (= |v_g_#in~dInParam_1| 0) (= |v_g_#in~cInParam_1| v_f_~a_4)) InVars {f_~a=v_f_~a_4} OutVars{g_#in~c=|v_g_#in~cInParam_1|, g_#in~d=|v_g_#in~dInParam_1|} AuxVars[] AssignedVars[g_#in~c, g_#in~d]< 179#gENTRY [2020-06-22 02:28:31,444 INFO L796 eck$LassoCheckResult]: Loop: 179#gENTRY [53] gENTRY-->L26: Formula: (and (= v_g_~d_1 |v_g_#in~d_1|) (= v_g_~c_1 |v_g_#in~c_1|)) InVars {g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} OutVars{g_~d=v_g_~d_1, g_~c=v_g_~c_1, g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} AuxVars[] AssignedVars[g_~d, g_~c] 182#L26 [73] L26-->L29: Formula: (< 0 v_g_~c_3) InVars {g_~c=v_g_~c_3} OutVars{g_~c=v_g_~c_3} AuxVars[] AssignedVars[] 181#L29 [50] L29-->gENTRY: Formula: (and (= |v_g_#in~cInParam_2| (+ v_g_~c_5 (- 1))) (= |v_g_#in~dInParam_2| (+ v_g_~d_4 1))) InVars {g_~d=v_g_~d_4, g_~c=v_g_~c_5} OutVars{g_#in~c=|v_g_#in~cInParam_2|, g_#in~d=|v_g_#in~dInParam_2|} AuxVars[] AssignedVars[g_#in~c, g_#in~d]< 179#gENTRY [2020-06-22 02:28:31,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:31,445 INFO L82 PathProgramCache]: Analyzing trace with hash 101015095, now seen corresponding path program 1 times [2020-06-22 02:28:31,445 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:31,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:31,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:31,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:31,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:31,454 INFO L82 PathProgramCache]: Analyzing trace with hash 83037, now seen corresponding path program 1 times [2020-06-22 02:28:31,455 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:31,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:31,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:31,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:31,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:31,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1431326105, now seen corresponding path program 1 times [2020-06-22 02:28:31,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:31,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:31,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:31,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:31,520 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:28:31,520 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:28:31,520 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:28:31,521 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:28:31,521 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:28:31,521 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,521 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:28:31,521 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:28:31,521 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 02:28:31,521 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:28:31,521 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:28:31,523 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 02:28:31,526 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 02:28:31,529 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 02:28:31,531 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 02:28:31,533 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 02:28:31,539 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 02:28:31,570 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:28:31,570 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:31,577 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:31,580 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:31,580 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret2=0} Honda state: {g_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,606 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:31,606 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,635 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:31,635 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:31,651 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:31,651 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~d=0} Honda state: {g_#in~d=0} Generalized eigenvectors: [{g_#in~d=7}, {g_#in~d=-5}, {g_#in~d=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,677 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:31,677 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:31,680 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:31,680 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,707 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:31,707 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:31,711 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:31,711 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~c=0} Honda state: {g_~c=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,737 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:31,737 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:31,765 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:31,765 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:31,794 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:28:31,795 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:28:31,795 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:28:31,795 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:28:31,795 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:28:31,795 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:28:31,795 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:28:31,796 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:28:31,796 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:28:31,796 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-22 02:28:31,796 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:28:31,796 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:28:31,797 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 02:28:31,799 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 02:28:31,802 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 02:28:31,803 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 02:28:31,805 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 02:28:31,807 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 02:28:31,838 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:28:31,838 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:28:31,838 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 02:28:31,839 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:28:31,839 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:28:31,839 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:28:31,840 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:28:31,840 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:28:31,840 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:28:31,840 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:28:31,841 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:28:31,842 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 02:28:31,842 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:28:31,842 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:28:31,842 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:28:31,843 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:28:31,843 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:28:31,843 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:28:31,843 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:28:31,846 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:28:31,847 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 02:28:31,847 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:28:31,847 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:28:31,847 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:28:31,848 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:28:31,848 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:28:31,848 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:28:31,848 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:28:31,849 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:28:31,850 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 02:28:31,850 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:28:31,850 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:28:31,850 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:28:31,850 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:28:31,851 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:28:31,851 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:28:31,851 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:28:31,852 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:28:31,853 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 02:28:31,853 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:28:31,853 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:28:31,853 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:28:31,853 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:28:31,853 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:28:31,854 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:28:31,854 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:28:31,855 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:28:31,855 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 02:28:31,856 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:28:31,856 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:28:31,856 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:28:31,856 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:28:31,856 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:28:31,857 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:28:31,857 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:28:31,860 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:28:31,863 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:28:31,863 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:28:31,863 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:28:31,863 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:28:31,864 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:28:31,864 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(g_#in~c) = 1*g_#in~c Supporting invariants [] [2020-06-22 02:28:31,864 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:28:31,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:28:31,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 02:28:31,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:28:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:28:31,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 02:28:31,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:28:31,924 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 02:28:31,931 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:28:31,931 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 02:28:31,931 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-06-22 02:28:31,974 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 30 states and 37 transitions. Complement of second has 18 states. [2020-06-22 02:28:31,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-06-22 02:28:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 02:28:31,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-06-22 02:28:31,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 02:28:31,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:28:31,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 8 letters. Loop has 3 letters. [2020-06-22 02:28:31,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:28:31,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 6 letters. [2020-06-22 02:28:31,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:28:31,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2020-06-22 02:28:31,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:28:31,982 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 34 transitions. [2020-06-22 02:28:31,982 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-06-22 02:28:31,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-06-22 02:28:31,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2020-06-22 02:28:31,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:28:31,983 INFO L706 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-06-22 02:28:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2020-06-22 02:28:31,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2020-06-22 02:28:31,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 02:28:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-06-22 02:28:31,985 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-06-22 02:28:31,986 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-06-22 02:28:31,986 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 02:28:31,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-06-22 02:28:31,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:28:31,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:28:31,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:28:31,987 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-06-22 02:28:31,987 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:28:31,987 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY [77] ULTIMATE.startENTRY-->L37: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~b~0] 279#L37 [41] L37-->fENTRY: Formula: (and (= |v_f_#in~aInParam_2| v_ULTIMATE.start_main_~a~0_7) (= |v_f_#in~bInParam_2| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{f_#in~b=|v_f_#in~bInParam_2|, f_#in~a=|v_f_#in~aInParam_2|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 280#fENTRY [54] fENTRY-->L18: Formula: (and (= v_f_~b_1 |v_f_#in~b_1|) (= v_f_~a_1 |v_f_#in~a_1|)) InVars {f_#in~b=|v_f_#in~b_1|, f_#in~a=|v_f_#in~a_1|} OutVars{f_~a=v_f_~a_1, f_#in~a=|v_f_#in~a_1|, f_#in~b=|v_f_#in~b_1|, f_~b=v_f_~b_1} AuxVars[] AssignedVars[f_~a, f_~b] 291#L18 [47] L18-->L19: Formula: (= 0 v_f_~b_2) InVars {f_~b=v_f_~b_2} OutVars{f_~b=v_f_~b_2} AuxVars[] AssignedVars[] 292#L19 [45] L19-->gENTRY: Formula: (and (= |v_g_#in~dInParam_1| 0) (= |v_g_#in~cInParam_1| v_f_~a_4)) InVars {f_~a=v_f_~a_4} OutVars{g_#in~c=|v_g_#in~cInParam_1|, g_#in~d=|v_g_#in~dInParam_1|} AuxVars[] AssignedVars[g_#in~c, g_#in~d]< 294#gENTRY [53] gENTRY-->L26: Formula: (and (= v_g_~d_1 |v_g_#in~d_1|) (= v_g_~c_1 |v_g_#in~c_1|)) InVars {g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} OutVars{g_~d=v_g_~d_1, g_~c=v_g_~c_1, g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} AuxVars[] AssignedVars[g_~d, g_~c] 286#L26 [2020-06-22 02:28:31,988 INFO L796 eck$LassoCheckResult]: Loop: 286#L26 [74] L26-->L29: Formula: (> 0 v_g_~c_3) InVars {g_~c=v_g_~c_3} OutVars{g_~c=v_g_~c_3} AuxVars[] AssignedVars[] 285#L29 [50] L29-->gENTRY: Formula: (and (= |v_g_#in~cInParam_2| (+ v_g_~c_5 (- 1))) (= |v_g_#in~dInParam_2| (+ v_g_~d_4 1))) InVars {g_~d=v_g_~d_4, g_~c=v_g_~c_5} OutVars{g_#in~c=|v_g_#in~cInParam_2|, g_#in~d=|v_g_#in~dInParam_2|} AuxVars[] AssignedVars[g_#in~c, g_#in~d]< 284#gENTRY [53] gENTRY-->L26: Formula: (and (= v_g_~d_1 |v_g_#in~d_1|) (= v_g_~c_1 |v_g_#in~c_1|)) InVars {g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} OutVars{g_~d=v_g_~d_1, g_~c=v_g_~c_1, g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} AuxVars[] AssignedVars[g_~d, g_~c] 286#L26 [2020-06-22 02:28:31,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:31,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1163499298, now seen corresponding path program 1 times [2020-06-22 02:28:31,988 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:31,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:31,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:31,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:31,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:31,997 INFO L82 PathProgramCache]: Analyzing trace with hash 102508, now seen corresponding path program 1 times [2020-06-22 02:28:31,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:31,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:31,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:31,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:31,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:32,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1421435281, now seen corresponding path program 1 times [2020-06-22 02:28:32,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:32,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:32,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:32,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:32,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:28:32,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 02:28:32,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 02:28:32,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-06-22 02:28:32,088 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:28:32,088 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:28:32,088 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:28:32,088 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:28:32,089 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:28:32,089 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:32,089 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:28:32,089 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:28:32,089 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 02:28:32,089 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:28:32,089 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:28:32,090 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 02:28:32,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:28:32,098 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 02:28:32,100 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 02:28:32,136 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:28:32,137 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:32,139 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:32,140 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:32,143 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:32,143 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret2=0} Honda state: {g_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:32,168 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:32,169 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:32,202 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:32,202 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:32,862 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:32,862 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~c=-15, g_#in~c=0} Honda state: {g_~c=-15, g_#in~c=0} Generalized eigenvectors: [{g_~c=-1, g_#in~c=-1}, {g_~c=0, g_#in~c=-7}, {g_~c=0, g_#in~c=-8}] Lambdas: [1, 0, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:32,889 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:32,889 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:32,892 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:32,892 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:32,918 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:32,918 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:32,951 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:32,951 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:33,170 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:33,171 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~d=2, g_#in~d=0} Honda state: {g_~d=2, g_#in~d=0} Generalized eigenvectors: [{g_~d=1, g_#in~d=0}, {g_~d=0, g_#in~d=1}, {g_~d=0, g_#in~d=2}] Lambdas: [1, 0, 0] Nus: [1, 0] [2020-06-22 02:28:33,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-06-22 02:28:33,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-06-22 02:28:33,195 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 7 states. [2020-06-22 02:28:33,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:28:33,234 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2020-06-22 02:28:33,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-06-22 02:28:33,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2020-06-22 02:28:33,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:28:33,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 23 transitions. [2020-06-22 02:28:33,238 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-22 02:28:33,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-22 02:28:33,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2020-06-22 02:28:33,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:28:33,239 INFO L706 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-06-22 02:28:33,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2020-06-22 02:28:33,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-06-22 02:28:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-06-22 02:28:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2020-06-22 02:28:33,241 INFO L729 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-06-22 02:28:33,241 INFO L609 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-06-22 02:28:33,241 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 02:28:33,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2020-06-22 02:28:33,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 02:28:33,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:28:33,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:28:33,242 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 02:28:33,242 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:28:33,243 INFO L794 eck$LassoCheckResult]: Stem: 336#ULTIMATE.startENTRY [77] ULTIMATE.startENTRY-->L37: Formula: (and (<= 0 v_ULTIMATE.start_main_~b~0_8) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~b~0] 332#L37 [41] L37-->fENTRY: Formula: (and (= |v_f_#in~aInParam_2| v_ULTIMATE.start_main_~a~0_7) (= |v_f_#in~bInParam_2| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{f_#in~b=|v_f_#in~bInParam_2|, f_#in~a=|v_f_#in~aInParam_2|} AuxVars[] AssignedVars[f_#in~a, f_#in~b]< 333#fENTRY [54] fENTRY-->L18: Formula: (and (= v_f_~b_1 |v_f_#in~b_1|) (= v_f_~a_1 |v_f_#in~a_1|)) InVars {f_#in~b=|v_f_#in~b_1|, f_#in~a=|v_f_#in~a_1|} OutVars{f_~a=v_f_~a_1, f_#in~a=|v_f_#in~a_1|, f_#in~b=|v_f_#in~b_1|, f_~b=v_f_~b_1} AuxVars[] AssignedVars[f_~a, f_~b] 344#L18 [47] L18-->L19: Formula: (= 0 v_f_~b_2) InVars {f_~b=v_f_~b_2} OutVars{f_~b=v_f_~b_2} AuxVars[] AssignedVars[] 338#L19 [45] L19-->gENTRY: Formula: (and (= |v_g_#in~dInParam_1| 0) (= |v_g_#in~cInParam_1| v_f_~a_4)) InVars {f_~a=v_f_~a_4} OutVars{g_#in~c=|v_g_#in~cInParam_1|, g_#in~d=|v_g_#in~dInParam_1|} AuxVars[] AssignedVars[g_#in~c, g_#in~d]< 337#gENTRY [53] gENTRY-->L26: Formula: (and (= v_g_~d_1 |v_g_#in~d_1|) (= v_g_~c_1 |v_g_#in~c_1|)) InVars {g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} OutVars{g_~d=v_g_~d_1, g_~c=v_g_~c_1, g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} AuxVars[] AssignedVars[g_~d, g_~c] 339#L26 [73] L26-->L29: Formula: (< 0 v_g_~c_3) InVars {g_~c=v_g_~c_3} OutVars{g_~c=v_g_~c_3} AuxVars[] AssignedVars[] 347#L29 [50] L29-->gENTRY: Formula: (and (= |v_g_#in~cInParam_2| (+ v_g_~c_5 (- 1))) (= |v_g_#in~dInParam_2| (+ v_g_~d_4 1))) InVars {g_~d=v_g_~d_4, g_~c=v_g_~c_5} OutVars{g_#in~c=|v_g_#in~cInParam_2|, g_#in~d=|v_g_#in~dInParam_2|} AuxVars[] AssignedVars[g_#in~c, g_#in~d]< 349#gENTRY [53] gENTRY-->L26: Formula: (and (= v_g_~d_1 |v_g_#in~d_1|) (= v_g_~c_1 |v_g_#in~c_1|)) InVars {g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} OutVars{g_~d=v_g_~d_1, g_~c=v_g_~c_1, g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} AuxVars[] AssignedVars[g_~d, g_~c] 345#L26 [2020-06-22 02:28:33,243 INFO L796 eck$LassoCheckResult]: Loop: 345#L26 [74] L26-->L29: Formula: (> 0 v_g_~c_3) InVars {g_~c=v_g_~c_3} OutVars{g_~c=v_g_~c_3} AuxVars[] AssignedVars[] 346#L29 [50] L29-->gENTRY: Formula: (and (= |v_g_#in~cInParam_2| (+ v_g_~c_5 (- 1))) (= |v_g_#in~dInParam_2| (+ v_g_~d_4 1))) InVars {g_~d=v_g_~d_4, g_~c=v_g_~c_5} OutVars{g_#in~c=|v_g_#in~cInParam_2|, g_#in~d=|v_g_#in~dInParam_2|} AuxVars[] AssignedVars[g_#in~c, g_#in~d]< 348#gENTRY [53] gENTRY-->L26: Formula: (and (= v_g_~d_1 |v_g_#in~d_1|) (= v_g_~c_1 |v_g_#in~c_1|)) InVars {g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} OutVars{g_~d=v_g_~d_1, g_~c=v_g_~c_1, g_#in~c=|v_g_#in~c_1|, g_#in~d=|v_g_#in~d_1|} AuxVars[] AssignedVars[g_~d, g_~c] 345#L26 [2020-06-22 02:28:33,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:33,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1421436242, now seen corresponding path program 2 times [2020-06-22 02:28:33,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:33,243 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:33,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:33,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:28:33,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:33,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:33,255 INFO L82 PathProgramCache]: Analyzing trace with hash 102508, now seen corresponding path program 2 times [2020-06-22 02:28:33,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:33,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:33,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:33,256 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:28:33,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:28:33,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:28:33,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1924441441, now seen corresponding path program 1 times [2020-06-22 02:28:33,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:28:33,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:28:33,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:33,262 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:28:33,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:28:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:28:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 02:28:33,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 02:28:33,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-06-22 02:28:33,324 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:28:33,324 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:28:33,324 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:28:33,324 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:28:33,324 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:28:33,324 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:33,325 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:28:33,325 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:28:33,325 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-06-22 02:28:33,325 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:28:33,325 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:28:33,326 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 02:28:33,332 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 02:28:33,334 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 02:28:33,339 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 02:28:33,373 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:28:33,373 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:33,376 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:33,376 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:33,408 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:33,409 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:33,641 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:33,642 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~c=-6, g_#in~c=0} Honda state: {g_~c=-6, g_#in~c=0} Generalized eigenvectors: [{g_~c=0, g_#in~c=-6}, {g_~c=-1, g_#in~c=-7}, {g_~c=0, g_#in~c=6}] Lambdas: [0, 1, 0] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:33,668 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:33,668 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:33,672 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:33,672 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret2=0} Honda state: {g_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:33,698 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:33,698 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:33,731 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:28:33,731 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:34,144 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:34,144 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~d=-2, g_#in~d=2} Honda state: {g_~d=-2, g_#in~d=2} Generalized eigenvectors: [{g_~d=1, g_#in~d=1}, {g_~d=0, g_#in~d=-4}, {g_~d=0, g_#in~d=0}] Lambdas: [1, 0, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:28:34,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:28:34,171 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:28:34,174 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:28:34,174 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 02:28:34,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 02:28:34,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-06-22 02:28:34,198 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-06-22 02:28:34,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:28:34,223 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-06-22 02:28:34,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 02:28:34,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2020-06-22 02:28:34,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:28:34,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-06-22 02:28:34,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:28:34,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:28:34,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:28:34,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:28:34,226 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:28:34,226 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:28:34,226 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:28:34,226 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2020-06-22 02:28:34,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 02:28:34,227 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:28:34,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 02:28:34,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:28:34 BasicIcfg [2020-06-22 02:28:34,233 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:28:34,233 INFO L168 Benchmark]: Toolchain (without parser) took 6142.59 ms. Allocated memory was 649.6 MB in the beginning and 751.8 MB in the end (delta: 102.2 MB). Free memory was 559.9 MB in the beginning and 499.7 MB in the end (delta: 60.1 MB). Peak memory consumption was 162.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:28:34,235 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 02:28:34,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.22 ms. Allocated memory was 649.6 MB in the beginning and 681.6 MB in the end (delta: 32.0 MB). Free memory was 559.9 MB in the beginning and 648.4 MB in the end (delta: -88.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:28:34,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 681.6 MB. Free memory was 648.4 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:28:34,236 INFO L168 Benchmark]: Boogie Preprocessor took 17.14 ms. Allocated memory is still 681.6 MB. Free memory was 647.3 MB in the beginning and 646.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:28:34,237 INFO L168 Benchmark]: RCFGBuilder took 214.13 ms. Allocated memory is still 681.6 MB. Free memory was 646.2 MB in the beginning and 628.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 50.3 GB. [2020-06-22 02:28:34,237 INFO L168 Benchmark]: BlockEncodingV2 took 88.13 ms. Allocated memory is still 681.6 MB. Free memory was 628.7 MB in the beginning and 623.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:28:34,237 INFO L168 Benchmark]: TraceAbstraction took 173.64 ms. Allocated memory is still 681.6 MB. Free memory was 622.2 MB in the beginning and 611.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. [2020-06-22 02:28:34,238 INFO L168 Benchmark]: BuchiAutomizer took 5317.70 ms. Allocated memory was 681.6 MB in the beginning and 751.8 MB in the end (delta: 70.3 MB). Free memory was 611.3 MB in the beginning and 499.7 MB in the end (delta: 111.6 MB). Peak memory consumption was 181.8 MB. Max. memory is 50.3 GB. [2020-06-22 02:28:34,242 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 22 locations, 26 edges - StatisticsResult: Encoded RCFG 16 locations, 21 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 293.22 ms. Allocated memory was 649.6 MB in the beginning and 681.6 MB in the end (delta: 32.0 MB). Free memory was 559.9 MB in the beginning and 648.4 MB in the end (delta: -88.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 681.6 MB. Free memory was 648.4 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.14 ms. Allocated memory is still 681.6 MB. Free memory was 647.3 MB in the beginning and 646.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 214.13 ms. Allocated memory is still 681.6 MB. Free memory was 646.2 MB in the beginning and 628.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 88.13 ms. Allocated memory is still 681.6 MB. Free memory was 628.7 MB in the beginning and 623.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 173.64 ms. Allocated memory is still 681.6 MB. Free memory was 622.2 MB in the beginning and 611.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 5317.70 ms. Allocated memory was 681.6 MB in the beginning and 751.8 MB in the end (delta: 70.3 MB). Free memory was 611.3 MB in the beginning and 499.7 MB in the end (delta: 111.6 MB). Peak memory consumption was 181.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 0 error locations. SAFE Result, 0.1s 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=16occurred 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, 6 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 6 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (4 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function \old(b) and consists of 4 locations. One nondeterministic module has affine ranking function \old(c) and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 4.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 22 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 64 SDtfs, 57 SDslu, 131 SDs, 0 SdLazy, 124 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc4 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf92 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 9 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 02:28:24.849 ----------------------------------------------- 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 02:28:34.472 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check