/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:41:08,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:41:08,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:41:08,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:41:08,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:41:08,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:41:08,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:41:08,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:41:08,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:41:08,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:41:08,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:41:08,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:41:08,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:41:08,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:41:08,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:41:08,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:41:08,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:41:08,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:41:08,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:41:08,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:41:08,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:41:08,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:41:08,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:41:08,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:41:08,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:41:08,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:41:08,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:41:08,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:41:08,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:41:08,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:41:08,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:41:08,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:41:08,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:41:08,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:41:08,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:41:08,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:41:08,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:41:08,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:41:08,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:41:08,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:41:08,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:41:08,195 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:41:08,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:41:08,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:41:08,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:41:08,211 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:41:08,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:41:08,211 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:41:08,211 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:41:08,212 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:41:08,212 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:41:08,212 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:41:08,212 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:41:08,212 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:41:08,212 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:41:08,213 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:41:08,213 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:08,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:41:08,213 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:41:08,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:41:08,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:41:08,214 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:41:08,214 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:41:08,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:41:08,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:41:08,214 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:41:08,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:41:08,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:41:08,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:41:08,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:41:08,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:41:08,383 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:41:08,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:41:08,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:41:08,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:41:08,402 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:41:08,402 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:41:08,469 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_4pNEzS/tmp/6c6cae3b6cb6460c9434858b9f8116b0/FLAGa338d06bd [2020-07-01 11:41:08,797 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:41:08,797 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:41:08,804 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_4pNEzS/tmp/6c6cae3b6cb6460c9434858b9f8116b0/FLAGa338d06bd [2020-07-01 11:41:09,196 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_4pNEzS/tmp/6c6cae3b6cb6460c9434858b9f8116b0 [2020-07-01 11:41:09,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:41:09,209 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:41:09,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:41:09,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:41:09,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:41:09,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ca87fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09, skipping insertion in model container [2020-07-01 11:41:09,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:41:09,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:41:09,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:41:09,473 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:41:09,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:41:09,504 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:41:09,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09 WrapperNode [2020-07-01 11:41:09,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:41:09,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:41:09,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:41:09,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:41:09,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:41:09,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:41:09,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:41:09,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:41:09,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:41:09,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:41:09,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:41:09,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:41:09,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:41:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:41:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:41:09,789 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:41:09,790 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:41:09,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:41:09 BoogieIcfgContainer [2020-07-01 11:41:09,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:41:09,794 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:41:09,794 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:41:09,796 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:41:09,797 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:41:09" (1/1) ... [2020-07-01 11:41:09,809 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-07-01 11:41:09,811 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:41:09,812 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:41:09,812 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:41:09,813 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:41:09,814 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:41:09,815 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:41:09,815 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:41:09,828 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:41:09,843 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:41:09,847 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:41:09,849 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:41:09,867 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:41:09,870 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:41:09,871 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:41:09,871 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:41:09,872 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:41:09,872 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:41:09,872 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges [2020-07-01 11:41:09,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:41:09 BasicIcfg [2020-07-01 11:41:09,873 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:41:09,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:41:09,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:41:09,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:41:09,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:41:09" (1/4) ... [2020-07-01 11:41:09,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51122acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:41:09, skipping insertion in model container [2020-07-01 11:41:09,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (2/4) ... [2020-07-01 11:41:09,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51122acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:41:09, skipping insertion in model container [2020-07-01 11:41:09,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:41:09" (3/4) ... [2020-07-01 11:41:09,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51122acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:41:09, skipping insertion in model container [2020-07-01 11:41:09,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:41:09" (4/4) ... [2020-07-01 11:41:09,883 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:41:09,894 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:41:09,901 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:41:09,914 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:41:09,937 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:41:09,937 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:41:09,937 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:41:09,938 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:41:09,938 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:41:09,938 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:41:09,938 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:41:09,938 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:41:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 11:41:09,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:41:09,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 11:41:10,012 INFO L271 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2020-07-01 11:41:10,013 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:41:10,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:41:10 BasicIcfg [2020-07-01 11:41:10,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:41:10,022 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:41:10,022 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:41:10,026 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:41:10,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:10,027 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:41:09" (1/5) ... [2020-07-01 11:41:10,027 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7c27c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:41:10, skipping insertion in model container [2020-07-01 11:41:10,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:10,028 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:09" (2/5) ... [2020-07-01 11:41:10,028 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7c27c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:41:10, skipping insertion in model container [2020-07-01 11:41:10,028 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:10,028 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:41:09" (3/5) ... [2020-07-01 11:41:10,029 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7c27c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:41:10, skipping insertion in model container [2020-07-01 11:41:10,029 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:10,029 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:41:09" (4/5) ... [2020-07-01 11:41:10,029 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7c27c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:41:10, skipping insertion in model container [2020-07-01 11:41:10,029 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:10,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:41:10" (5/5) ... [2020-07-01 11:41:10,031 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:41:10,060 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:41:10,060 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:41:10,060 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:41:10,061 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:41:10,061 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:41:10,061 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:41:10,061 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:41:10,061 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:41:10,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:41:10,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:41:10,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:41:10,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:41:10,088 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:41:10,089 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:41:10,089 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:41:10,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:41:10,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:41:10,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:41:10,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:41:10,090 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:41:10,090 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:41:10,095 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [19] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 4#L16-2true [2020-07-01 11:41:10,096 INFO L796 eck$LassoCheckResult]: Loop: 4#L16-2true [26] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 4#L16-2true [2020-07-01 11:41:10,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:10,102 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-07-01 11:41:10,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:10,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478273111] [2020-07-01 11:41:10,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:10,186 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:10,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:10,188 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-07-01 11:41:10,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:10,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033994677] [2020-07-01 11:41:10,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:10,205 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:10,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:10,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1576, now seen corresponding path program 1 times [2020-07-01 11:41:10,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:10,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043767516] [2020-07-01 11:41:10,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:10,220 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:10,269 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:10,269 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:10,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:10,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:10,270 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:41:10,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:10,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:10,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:10,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:41:10,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:10,271 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:10,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:10,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:10,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:10,418 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:10,419 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:10,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:10,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:10,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:41:10,435 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-07-01 11:41:10,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:10,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:10,473 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:41:10,474 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-07-01 11:41:10,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:10,506 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:10,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:41:10,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:12,132 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:41:12,135 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:12,147 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:12,147 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:12,147 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:12,147 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:41:12,147 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:12,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:12,148 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:12,148 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:41:12,148 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:12,148 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:12,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:12,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:12,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:12,241 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:12,246 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:12,251 INFO L120 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 [2020-07-01 11:41:12,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:12,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:12,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:12,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:12,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:41:12,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:41:12,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:12,298 INFO L120 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 [2020-07-01 11:41:12,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:12,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:12,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:12,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:12,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:41:12,305 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:41:12,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:12,342 INFO L120 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 [2020-07-01 11:41:12,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:12,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:12,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:12,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:12,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:12,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:41:12,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:12,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:41:12,382 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:12,385 INFO L120 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 [2020-07-01 11:41:12,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:12,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:12,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:12,387 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:41:12,392 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 11:41:12,392 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 11:41:12,399 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:12,432 INFO L120 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 [2020-07-01 11:41:12,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:12,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:12,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:12,435 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:41:12,440 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 11:41:12,440 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 11:41:12,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:12,480 INFO L120 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 [2020-07-01 11:41:12,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:12,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:12,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:12,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:12,484 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:41:12,488 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:41:12,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:12,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:41:12,500 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:41:12,501 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:12,510 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:41:12,510 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:41:12,510 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:41:12,512 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 f1 = 1*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 11:41:12,546 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:41:12,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:12,595 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:41:12,596 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:12,608 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:41:12,609 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:12,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:41:12,646 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:41:12,652 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:41:12,653 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-07-01 11:41:12,692 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 6 states and 13 transitions. Complement of second has 4 states. [2020-07-01 11:41:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:41:12,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:41:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:41:12,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 11:41:12,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:12,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:41:12,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:12,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:41:12,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:12,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 13 transitions. [2020-07-01 11:41:12,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:41:12,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 5 states and 9 transitions. [2020-07-01 11:41:12,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:41:12,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:41:12,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 9 transitions. [2020-07-01 11:41:12,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:41:12,713 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 9 transitions. [2020-07-01 11:41:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 9 transitions. [2020-07-01 11:41:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-07-01 11:41:12,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:41:12,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2020-07-01 11:41:12,742 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 7 transitions. [2020-07-01 11:41:12,742 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 7 transitions. [2020-07-01 11:41:12,743 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:41:12,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 7 transitions. [2020-07-01 11:41:12,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:41:12,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:41:12,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:41:12,744 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:41:12,744 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:41:12,745 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 42#L16-2 [27] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 43#L16-2 [2020-07-01 11:41:12,745 INFO L796 eck$LassoCheckResult]: Loop: 43#L16-2 [26] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 43#L16-2 [2020-07-01 11:41:12,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:12,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1577, now seen corresponding path program 1 times [2020-07-01 11:41:12,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:12,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206753613] [2020-07-01 11:41:12,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:12,758 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:12,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:12,758 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 2 times [2020-07-01 11:41:12,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:12,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126738493] [2020-07-01 11:41:12,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:12,768 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:12,768 INFO L82 PathProgramCache]: Analyzing trace with hash 48913, now seen corresponding path program 1 times [2020-07-01 11:41:12,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:12,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851675729] [2020-07-01 11:41:12,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:12,784 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:12,802 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:12,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:12,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:12,802 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:12,803 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:41:12,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:12,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:12,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:12,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:41:12,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:12,803 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:12,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:12,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:12,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:12,886 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:12,886 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:12,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:12,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:12,901 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:41:12,901 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-07-01 11:41:12,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:12,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:12,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:41:12,942 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 [2020-07-01 11:41:12,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:12,978 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:13,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:41:13,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:14,945 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:41:14,947 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:14,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:14,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:14,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:14,948 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:41:14,948 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:14,948 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:14,948 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:14,948 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:41:14,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:14,949 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:14,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:14,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:14,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:15,020 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:15,021 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:15,025 INFO L120 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 [2020-07-01 11:41:15,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:15,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:15,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:15,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:15,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:41:15,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:41:15,035 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:15,067 INFO L120 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 [2020-07-01 11:41:15,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:15,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:15,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:15,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:15,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:41:15,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:41:15,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:15,110 INFO L120 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 [2020-07-01 11:41:15,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:15,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:15,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:15,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:15,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:15,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:41:15,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:15,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:41:15,148 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:15,153 INFO L120 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 [2020-07-01 11:41:15,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:15,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:15,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:15,156 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:41:15,159 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 11:41:15,159 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 11:41:15,165 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:15,198 INFO L120 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 [2020-07-01 11:41:15,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:15,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:15,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:15,201 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:41:15,204 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 11:41:15,204 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 11:41:15,211 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:15,244 INFO L120 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 [2020-07-01 11:41:15,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:15,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:15,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:15,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:15,246 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:41:15,249 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:41:15,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:15,253 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:41:15,259 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:41:15,259 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:15,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:41:15,262 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:41:15,263 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:41:15,263 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 11:41:15,294 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:41:15,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:15,318 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:41:15,319 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:15,326 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:41:15,326 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:41:15,343 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:41:15,344 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:41:15,344 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 7 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 11:41:15,365 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 7 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 9 states and 19 transitions. Complement of second has 5 states. [2020-07-01 11:41:15,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:41:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:41:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:41:15,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:41:15,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:15,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:41:15,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:15,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:41:15,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:15,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 19 transitions. [2020-07-01 11:41:15,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:41:15,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 15 transitions. [2020-07-01 11:41:15,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:41:15,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:41:15,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 15 transitions. [2020-07-01 11:41:15,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:41:15,371 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2020-07-01 11:41:15,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 15 transitions. [2020-07-01 11:41:15,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2020-07-01 11:41:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 11:41:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2020-07-01 11:41:15,373 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 11 transitions. [2020-07-01 11:41:15,373 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 11 transitions. [2020-07-01 11:41:15,373 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:41:15,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 11 transitions. [2020-07-01 11:41:15,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:41:15,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:41:15,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:41:15,374 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:41:15,374 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:41:15,374 INFO L794 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 89#L16-2 [27] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 91#L16-2 [2020-07-01 11:41:15,375 INFO L796 eck$LassoCheckResult]: Loop: 91#L16-2 [27] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 90#L16-2 [26] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 91#L16-2 [2020-07-01 11:41:15,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:15,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1577, now seen corresponding path program 2 times [2020-07-01 11:41:15,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:15,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753463316] [2020-07-01 11:41:15,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:15,385 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:15,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:15,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1824, now seen corresponding path program 1 times [2020-07-01 11:41:15,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:15,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248434491] [2020-07-01 11:41:15,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:15,397 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:15,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:15,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1516360, now seen corresponding path program 2 times [2020-07-01 11:41:15,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:15,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966492695] [2020-07-01 11:41:15,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:15,415 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:15,477 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:15,477 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:15,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:15,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:15,496 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:41:15,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:15,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:15,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:15,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:41:15,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:15,497 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:15,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:15,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:15,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:15,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:15,596 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:15,596 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:15,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:15,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:15,603 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:41:15,603 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:15,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:15,635 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:15,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:41:15,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:15,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:41:15,881 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-4, ULTIMATE.start_main_~oldx~0=-3} Honda state: {ULTIMATE.start_main_~y~0=-4, ULTIMATE.start_main_~oldx~0=-3} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~oldx~0=0}, {ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~oldx~0=-5}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~oldx~0=3}] Lambdas: [11, 1, 0] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:15,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:15,913 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:15,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:41:15,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:15,984 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:41:15,985 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:15,985 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:15,985 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:15,986 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:15,986 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:41:15,986 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:15,986 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:15,986 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:15,986 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:41:15,986 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:15,986 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:15,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:15,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:15,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,068 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:16,068 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:16,075 INFO L120 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 [2020-07-01 11:41:16,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:16,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:16,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:16,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:16,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:41:16,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:41:16,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:16,117 INFO L120 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 [2020-07-01 11:41:16,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:16,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:16,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:16,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:16,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:16,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:41:16,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:16,123 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:41:16,125 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:41:16,126 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:16,128 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:41:16,128 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:41:16,128 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:41:16,129 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:41:16,158 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:41:16,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:16,178 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:41:16,179 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:16,184 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:41:16,185 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:41:16,198 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:41:16,199 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:41:16,199 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 11 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 11:41:16,227 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 11 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 36 states and 76 transitions. Complement of second has 18 states. [2020-07-01 11:41:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:41:16,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:41:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-01 11:41:16,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:41:16,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:16,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:41:16,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:16,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 11:41:16,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:16,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 76 transitions. [2020-07-01 11:41:16,234 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-07-01 11:41:16,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 76 transitions. [2020-07-01 11:41:16,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 11:41:16,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-07-01 11:41:16,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 76 transitions. [2020-07-01 11:41:16,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:41:16,237 INFO L688 BuchiCegarLoop]: Abstraction has 36 states and 76 transitions. [2020-07-01 11:41:16,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 76 transitions. [2020-07-01 11:41:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 20. [2020-07-01 11:41:16,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 11:41:16,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 43 transitions. [2020-07-01 11:41:16,241 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 43 transitions. [2020-07-01 11:41:16,241 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 43 transitions. [2020-07-01 11:41:16,241 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:41:16,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 43 transitions. [2020-07-01 11:41:16,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-01 11:41:16,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:41:16,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:41:16,243 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:41:16,243 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:41:16,243 INFO L794 eck$LassoCheckResult]: Stem: 177#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 178#L16-2 [27] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 192#L16-2 [26] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 189#L16-2 [2020-07-01 11:41:16,243 INFO L796 eck$LassoCheckResult]: Loop: 189#L16-2 [27] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 188#L16-2 [26] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 189#L16-2 [2020-07-01 11:41:16,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:16,244 INFO L82 PathProgramCache]: Analyzing trace with hash 48913, now seen corresponding path program 3 times [2020-07-01 11:41:16,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:16,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760852071] [2020-07-01 11:41:16,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:16,257 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:16,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1824, now seen corresponding path program 2 times [2020-07-01 11:41:16,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:16,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432581337] [2020-07-01 11:41:16,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:16,267 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:16,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:16,267 INFO L82 PathProgramCache]: Analyzing trace with hash 47006256, now seen corresponding path program 4 times [2020-07-01 11:41:16,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:16,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343213442] [2020-07-01 11:41:16,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:16,286 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:16,339 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:16,339 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:16,339 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:16,339 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:16,340 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:41:16,340 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:16,340 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:16,340 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:16,340 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:41:16,340 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:16,340 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:16,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,412 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:16,412 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:16,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:16,416 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:16,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:41:16,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:16,677 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:41:16,677 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-3, ULTIMATE.start_main_~oldx~0=5} Honda state: {ULTIMATE.start_main_~y~0=-3, ULTIMATE.start_main_~oldx~0=5} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~oldx~0=-2}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~oldx~0=1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~oldx~0=-8}] Lambdas: [1, 8, 0] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:16,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:16,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:16,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:41:16,714 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:16,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:16,746 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:16,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:41:16,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:16,816 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:41:16,817 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:16,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:16,818 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:16,818 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:16,818 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:41:16,818 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:16,818 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:16,818 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:16,818 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:41:16,819 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:16,819 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:16,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:16,884 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:16,884 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:16,889 INFO L120 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 [2020-07-01 11:41:16,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:16,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:16,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:16,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:16,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:16,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:41:16,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:16,896 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:16,928 INFO L120 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 [2020-07-01 11:41:16,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:16,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:16,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:16,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:16,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:16,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:41:16,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:16,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:41:16,936 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:41:16,936 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 11:41:16,938 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:41:16,938 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:41:16,939 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:41:16,939 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:41:16,968 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:41:16,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:16,988 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:41:16,988 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:16,994 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:41:16,994 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:41:17,003 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:41:17,003 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:41:17,004 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 20 states and 43 transitions. cyclomatic complexity: 29 Second operand 3 states. [2020-07-01 11:41:17,055 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 20 states and 43 transitions. cyclomatic complexity: 29. Second operand 3 states. Result 249 states and 590 transitions. Complement of second has 16 states. [2020-07-01 11:41:17,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:41:17,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:41:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-01 11:41:17,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:41:17,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:17,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:41:17,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:17,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:41:17,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:17,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 249 states and 590 transitions. [2020-07-01 11:41:17,070 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 4 [2020-07-01 11:41:17,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 249 states to 133 states and 277 transitions. [2020-07-01 11:41:17,073 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-07-01 11:41:17,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-07-01 11:41:17,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 277 transitions. [2020-07-01 11:41:17,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:41:17,074 INFO L688 BuchiCegarLoop]: Abstraction has 133 states and 277 transitions. [2020-07-01 11:41:17,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 277 transitions. [2020-07-01 11:41:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 31. [2020-07-01 11:41:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-01 11:41:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 79 transitions. [2020-07-01 11:41:17,081 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 79 transitions. [2020-07-01 11:41:17,081 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 79 transitions. [2020-07-01 11:41:17,081 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:41:17,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 79 transitions. [2020-07-01 11:41:17,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:41:17,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:41:17,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:41:17,083 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-01 11:41:17,083 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:41:17,083 INFO L794 eck$LassoCheckResult]: Stem: 494#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 495#L16-2 [26] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 510#L16-2 [26] L16-2-->L16-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 501#L16-2 [27] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 508#L16-2 [2020-07-01 11:41:17,083 INFO L796 eck$LassoCheckResult]: Loop: 508#L16-2 [27] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~oldx~0_4 (- 1))) (= v_ULTIMATE.start_main_~oldx~0_4 v_ULTIMATE.start_main_~x~0_8) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~oldx~0=v_ULTIMATE.start_main_~oldx~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~oldx~0, ULTIMATE.start_main_~x~0] 508#L16-2 [2020-07-01 11:41:17,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:17,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1515369, now seen corresponding path program 5 times [2020-07-01 11:41:17,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:17,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30979051] [2020-07-01 11:41:17,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:17,097 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:17,098 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-07-01 11:41:17,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:17,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073141628] [2020-07-01 11:41:17,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:17,104 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:17,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:17,104 INFO L82 PathProgramCache]: Analyzing trace with hash 46976466, now seen corresponding path program 6 times [2020-07-01 11:41:17,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:17,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542311925] [2020-07-01 11:41:17,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:17,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:17,135 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:17,135 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:17,154 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:17,154 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:17,154 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:41:17,154 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:17,154 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:17,154 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:17,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:41:17,155 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:17,155 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:17,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:17,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:17,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:17,210 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:17,210 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 [2020-07-01 11:41:17,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:41:17,213 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:17,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:41:17,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:41:19,239 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:41:19,241 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:41:19,242 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:41:19,242 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:41:19,242 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:41:19,242 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:41:19,242 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:19,242 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:41:19,242 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:41:19,242 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:41:19,242 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:41:19,243 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:41:19,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:19,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:19,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:41:19,301 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:41:19,301 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:19,304 INFO L120 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 [2020-07-01 11:41:19,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:19,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:19,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:19,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:19,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:19,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:41:19,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:19,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:19,342 INFO L120 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 [2020-07-01 11:41:19,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:19,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:19,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:19,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:19,346 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:41:19,346 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:41:19,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:19,381 INFO L120 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 [2020-07-01 11:41:19,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:19,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:19,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:19,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:41:19,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:41:19,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:41:19,388 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 11:41:19,417 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:19,420 INFO L120 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 [2020-07-01 11:41:19,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:41:19,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:41:19,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:41:19,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:41:19,422 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 11:41:19,424 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 11:41:19,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:41:19,429 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:41:19,434 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:41:19,434 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:41:19,438 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:41:19,438 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:41:19,439 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:41:19,439 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 11:41:19,469 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:41:19,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:19,492 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:41:19,493 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:19,497 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:41:19,498 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:41:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:41:19,512 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:41:19,513 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:41:19,513 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 31 states and 79 transitions. cyclomatic complexity: 55 Second operand 2 states. [2020-07-01 11:41:19,536 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 31 states and 79 transitions. cyclomatic complexity: 55. Second operand 2 states. Result 73 states and 187 transitions. Complement of second has 6 states. [2020-07-01 11:41:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:41:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:41:19,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:41:19,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-01 11:41:19,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:19,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-01 11:41:19,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:19,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:41:19,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:41:19,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 187 transitions. [2020-07-01 11:41:19,541 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:41:19,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 0 states and 0 transitions. [2020-07-01 11:41:19,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:41:19,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:41:19,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:41:19,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:41:19,542 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:41:19,542 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:41:19,542 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:41:19,542 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 11:41:19,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:41:19,543 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:41:19,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:41:19,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:41:19 BasicIcfg [2020-07-01 11:41:19,549 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:41:19,551 INFO L168 Benchmark]: Toolchain (without parser) took 10341.49 ms. Allocated memory was 649.6 MB in the beginning and 753.9 MB in the end (delta: 104.3 MB). Free memory was 562.5 MB in the beginning and 468.0 MB in the end (delta: 94.5 MB). Peak memory consumption was 198.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:19,552 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:41:19,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.17 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 562.5 MB in the beginning and 652.6 MB in the end (delta: -90.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:19,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.94 ms. Allocated memory is still 688.9 MB. Free memory was 652.6 MB in the beginning and 650.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:19,554 INFO L168 Benchmark]: Boogie Preprocessor took 19.57 ms. Allocated memory is still 688.9 MB. Free memory was 650.3 MB in the beginning and 649.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:19,554 INFO L168 Benchmark]: RCFGBuilder took 232.66 ms. Allocated memory is still 688.9 MB. Free memory was 649.2 MB in the beginning and 635.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:19,555 INFO L168 Benchmark]: BlockEncodingV2 took 78.99 ms. Allocated memory is still 688.9 MB. Free memory was 635.7 MB in the beginning and 630.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:19,555 INFO L168 Benchmark]: TraceAbstraction took 147.44 ms. Allocated memory is still 688.9 MB. Free memory was 629.2 MB in the beginning and 621.7 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:19,556 INFO L168 Benchmark]: BuchiAutomizer took 9526.72 ms. Allocated memory was 688.9 MB in the beginning and 753.9 MB in the end (delta: 65.0 MB). Free memory was 621.7 MB in the beginning and 468.0 MB in the end (delta: 153.6 MB). Peak memory consumption was 218.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:19,559 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 3 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.17 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 562.5 MB in the beginning and 652.6 MB in the end (delta: -90.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.94 ms. Allocated memory is still 688.9 MB. Free memory was 652.6 MB in the beginning and 650.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.57 ms. Allocated memory is still 688.9 MB. Free memory was 650.3 MB in the beginning and 649.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 232.66 ms. Allocated memory is still 688.9 MB. Free memory was 649.2 MB in the beginning and 635.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 78.99 ms. Allocated memory is still 688.9 MB. Free memory was 635.7 MB in the beginning and 630.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 147.44 ms. Allocated memory is still 688.9 MB. Free memory was 629.2 MB in the beginning and 621.7 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 9526.72 ms. Allocated memory was 688.9 MB in the beginning and 753.9 MB in the end (delta: 65.0 MB). Free memory was 621.7 MB in the beginning and 468.0 MB in the end (delta: 153.6 MB). Peak memory consumption was 218.6 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has 2-nested ranking function (if x + y > 0 then 1 else 0), (if x + y > 0 then x + y else y + 1) and consists of 3 locations. One nondeterministic module has 2-nested ranking function (if y + x > 0 then 1 else 0), (if y + x > 0 then y + x else y + 1) and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has 2-nested ranking function (if y + x > 0 then 1 else 0), (if y + x > 0 then y + x else x + 1) and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 8.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 121 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 4. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 5 SDtfs, 15 SDslu, 0 SDs, 0 SdLazy, 48 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq193 hnf91 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:41:05.937 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_4pNEzS/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:41:20.397 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check