/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:16:06,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:16:06,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:16:06,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:16:06,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:16:06,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:16:06,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:16:06,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:16:06,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:16:06,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:16:06,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:16:06,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:16:06,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:16:06,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:16:06,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:16:06,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:16:06,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:16:06,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:16:06,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:16:06,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:16:06,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:16:06,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:16:06,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:16:06,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:16:06,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:16:06,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:16:06,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:16:06,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:16:06,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:16:06,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:16:06,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:16:06,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:16:06,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:16:06,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:16:06,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:16:06,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:16:06,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:16:06,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:16:06,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:16:06,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:16:06,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:16:06,893 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:16:06,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:16:06,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:16:06,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:16:06,909 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:16:06,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:16:06,909 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:16:06,909 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:16:06,910 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:16:06,910 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:16:06,910 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:16:06,910 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:16:06,910 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:16:06,911 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:16:06,911 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:16:06,911 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:06,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:16:06,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:16:06,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:16:06,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:16:06,912 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:16:06,912 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:16:06,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:16:06,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:16:06,913 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:16:06,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:16:06,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:16:06,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:16:06,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:16:06,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:16:07,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:16:07,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:16:07,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:16:07,103 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:16:07,103 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:16:07,104 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:16:07,165 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_kwwLUE/tmp/fcec293879cb41b7a15b1240575d35e8/FLAG2e741ee2e [2020-07-01 11:16:07,507 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:16:07,507 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:16:07,514 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_kwwLUE/tmp/fcec293879cb41b7a15b1240575d35e8/FLAG2e741ee2e [2020-07-01 11:16:07,928 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_kwwLUE/tmp/fcec293879cb41b7a15b1240575d35e8 [2020-07-01 11:16:07,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:16:07,941 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:16:07,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:16:07,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:16:07,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:16:07,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:16:07" (1/1) ... [2020-07-01 11:16:07,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b733956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:07, skipping insertion in model container [2020-07-01 11:16:07,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:16:07" (1/1) ... [2020-07-01 11:16:07,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:16:07,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:16:08,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:16:08,210 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:16:08,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:16:08,242 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:16:08,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08 WrapperNode [2020-07-01 11:16:08,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:16:08,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:16:08,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:16:08,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:16:08,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:16:08,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:16:08,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:16:08,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:16:08,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:16:08,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:16:08,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:16:08,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:16:08,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:16:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:16:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:16:08,525 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:16:08,525 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:16:08,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:16:08 BoogieIcfgContainer [2020-07-01 11:16:08,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:16:08,530 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:16:08,530 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:16:08,532 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:16:08,533 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:16:08" (1/1) ... [2020-07-01 11:16:08,545 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 11:16:08,547 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:16:08,547 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:16:08,548 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:16:08,548 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:16:08,550 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:16:08,551 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:16:08,551 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:16:08,565 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:16:08,573 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:16:08,578 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:16:08,580 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:16:08,594 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:16:08,596 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:16:08,598 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:16:08,598 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:16:08,598 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:16:08,598 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:16:08,599 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:16:08,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:16:08 BasicIcfg [2020-07-01 11:16:08,599 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:16:08,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:16:08,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:16:08,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:16:08,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:16:07" (1/4) ... [2020-07-01 11:16:08,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e982fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:16:08, skipping insertion in model container [2020-07-01 11:16:08,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (2/4) ... [2020-07-01 11:16:08,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e982fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:16:08, skipping insertion in model container [2020-07-01 11:16:08,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:16:08" (3/4) ... [2020-07-01 11:16:08,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e982fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:16:08, skipping insertion in model container [2020-07-01 11:16:08,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:16:08" (4/4) ... [2020-07-01 11:16:08,608 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:16:08,619 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:16:08,625 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:16:08,639 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:16:08,662 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:16:08,662 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:16:08,662 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:16:08,662 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:16:08,663 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:16:08,663 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:16:08,663 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:16:08,663 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:16:08,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:16:08,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:16:08,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:16:08,737 INFO L268 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-07-01 11:16:08,737 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:16:08,738 INFO L271 CegarLoopResult]: At program point L14-2(lines 13 19) the Hoare annotation is: true [2020-07-01 11:16:08,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:16:08 BasicIcfg [2020-07-01 11:16:08,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:16:08,747 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:16:08,747 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:16:08,750 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:16:08,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:16:08,751 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:16:07" (1/5) ... [2020-07-01 11:16:08,752 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e0c8d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:16:08, skipping insertion in model container [2020-07-01 11:16:08,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:16:08,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:16:08" (2/5) ... [2020-07-01 11:16:08,753 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e0c8d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:16:08, skipping insertion in model container [2020-07-01 11:16:08,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:16:08,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:16:08" (3/5) ... [2020-07-01 11:16:08,753 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e0c8d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:16:08, skipping insertion in model container [2020-07-01 11:16:08,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:16:08,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:16:08" (4/5) ... [2020-07-01 11:16:08,754 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e0c8d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:16:08, skipping insertion in model container [2020-07-01 11:16:08,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:16:08,754 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:16:08" (5/5) ... [2020-07-01 11:16:08,756 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:16:08,785 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:16:08,785 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:16:08,785 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:16:08,785 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:16:08,786 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:16:08,786 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:16:08,786 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:16:08,786 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:16:08,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:16:08,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:16:08,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:16:08,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:16:08,812 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:16:08,813 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:16:08,813 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:16:08,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:16:08,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:16:08,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:16:08,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:16:08,814 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:16:08,814 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:16:08,819 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L14-2true [2020-07-01 11:16:08,820 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [29] L14-2-->L14: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L14true [34] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 4#L14-2true [2020-07-01 11:16:08,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:08,826 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-07-01 11:16:08,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:08,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212585737] [2020-07-01 11:16:08,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:08,911 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:08,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:08,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 1 times [2020-07-01 11:16:08,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:08,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075861802] [2020-07-01 11:16:08,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:08,929 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:08,931 INFO L82 PathProgramCache]: Analyzing trace with hash 54749, now seen corresponding path program 1 times [2020-07-01 11:16:08,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:08,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696177997] [2020-07-01 11:16:08,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:08,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:08,990 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:16:08,991 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:16:08,991 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:16:08,991 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:16:08,991 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:16:08,992 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:08,992 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:16:08,992 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:16:08,992 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:16:08,992 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:16:08,993 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:16:09,012 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 11:16:09,023 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 11:16:09,030 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 11:16:09,113 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:16:09,114 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:09,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:16:09,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:16:09,131 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:16:09,132 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/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:09,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:16:09,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:16:09,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:16:09,170 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/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:09,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:16:09,203 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:09,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:16:09,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:16:09,530 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:16:09,533 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:16:09,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:16:09,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:16:09,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:16:09,552 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:16:09,552 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:16:09,552 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:16:09,552 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:16:09,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:16:09,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:16:09,553 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:16:09,555 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 11:16:09,560 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 11:16:09,564 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 11:16:09,645 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:16:09,651 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:16:09,657 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 11:16:09,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:16:09,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:16:09,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:16:09,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:16:09,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:16:09,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:16:09,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:16:09,710 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 11:16:09,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:16:09,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:16:09,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:16:09,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:16:09,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:16:09,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:16:09,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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 11:16:09,756 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 11:16:09,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:16:09,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:16:09,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:16:09,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:16:09,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:16:09,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:16:09,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:16:09,766 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:16:09,772 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:16:09,772 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/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 11:16:09,777 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:16:09,777 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:16:09,777 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:16:09,778 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 11:16:09,812 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:16:09,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:16:09,854 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:16:09,855 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:16:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:16:09,868 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:16:09,869 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:16:09,871 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 11:16:09,883 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:16:09,888 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 11:16:09,890 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:16:09,917 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-07-01 11:16:09,918 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 11:16:09,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:16:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 11:16:09,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:16:09,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:09,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:16:09,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:09,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:16:09,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:09,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 11:16:09,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:16:09,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 11:16:09,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:16:09,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:16:09,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 11:16:09,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:16:09,937 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:16:09,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 11:16:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 11:16:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:16:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 11:16:09,965 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:16:09,965 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:16:09,965 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:16:09,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 11:16:09,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:16:09,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:16:09,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:16:09,967 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:16:09,967 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:16:09,967 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 42#L14-2 [29] L14-2-->L14: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 47#L14 [31] L14-->L14-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 43#L14-2 [2020-07-01 11:16:09,967 INFO L796 eck$LassoCheckResult]: Loop: 43#L14-2 [29] L14-2-->L14: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 44#L14 [34] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 43#L14-2 [2020-07-01 11:16:09,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:09,968 INFO L82 PathProgramCache]: Analyzing trace with hash 54746, now seen corresponding path program 1 times [2020-07-01 11:16:09,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:09,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421012917] [2020-07-01 11:16:09,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:09,980 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 2 times [2020-07-01 11:16:09,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:09,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961322570] [2020-07-01 11:16:09,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:09,988 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:09,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:09,989 INFO L82 PathProgramCache]: Analyzing trace with hash 52611839, now seen corresponding path program 1 times [2020-07-01 11:16:09,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:09,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137681955] [2020-07-01 11:16:09,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:10,003 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:10,021 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:16:10,021 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:16:10,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:16:10,021 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:16:10,021 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:16:10,021 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,022 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:16:10,022 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:16:10,022 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:16:10,022 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:16:10,022 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:16:10,024 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 11:16:10,029 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 11:16:10,036 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 11:16:10,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:16:10,099 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:16:10,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:16:10,108 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:16:10,108 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/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:16:10,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:16:10,147 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:16:10,147 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/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:16:10,181 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:16:10,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:16:10,500 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:16:10,503 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:16:10,503 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:16:10,503 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:16:10,503 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:16:10,503 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:16:10,503 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:16:10,504 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:16:10,504 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:16:10,504 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:16:10,504 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:16:10,505 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:16:10,506 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 11:16:10,510 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 11:16:10,518 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 11:16:10,559 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:16:10,560 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:16:10,563 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 11:16:10,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:16:10,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:16:10,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:16:10,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:16:10,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:16:10,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:16:10,574 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:16:10,608 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 11:16:10,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:16:10,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:16:10,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:16:10,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:16:10,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:16:10,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:16:10,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:16:10,618 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:16:10,623 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:16:10,623 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:16:10,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:16:10,633 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:16:10,633 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:16:10,633 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2020-07-01 11:16:10,665 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:16:10,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:16:10,689 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:16:10,690 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:16:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:16:10,694 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:16:10,694 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:16:10,695 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 11:16:10,695 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:16:10,696 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 11:16:10,696 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 11:16:10,710 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 9 states and 13 transitions. Complement of second has 4 states. [2020-07-01 11:16:10,711 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 11:16:10,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:16:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 11:16:10,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:16:10,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:10,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:16:10,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:10,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:16:10,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:10,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-07-01 11:16:10,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:16:10,716 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2020-07-01 11:16:10,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:16:10,716 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:16:10,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-07-01 11:16:10,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:16:10,717 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-01 11:16:10,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-07-01 11:16:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-07-01 11:16:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:16:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-01 11:16:10,718 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 11:16:10,718 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 11:16:10,718 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:16:10,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-07-01 11:16:10,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:16:10,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:16:10,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:16:10,719 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:16:10,719 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:16:10,720 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 92#L14-2 [2020-07-01 11:16:10,720 INFO L796 eck$LassoCheckResult]: Loop: 92#L14-2 [29] L14-2-->L14: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 94#L14 [31] L14-->L14-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 92#L14-2 [2020-07-01 11:16:10,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:10,720 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-07-01 11:16:10,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:10,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544826597] [2020-07-01 11:16:10,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:10,728 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:10,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:10,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-07-01 11:16:10,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:10,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597712321] [2020-07-01 11:16:10,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:10,737 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:10,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:10,737 INFO L82 PathProgramCache]: Analyzing trace with hash 54746, now seen corresponding path program 2 times [2020-07-01 11:16:10,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:16:10,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032738363] [2020-07-01 11:16:10,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:16:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:16:10,748 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:16:10,763 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:16:10,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:16:10,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:16:10,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:16:10,764 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:16:10,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:16:10,764 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:16:10,764 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:16:10,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:16:10,765 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:16:10,766 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 11:16:10,770 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 11:16:10,780 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 11:16:10,830 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:16:10,831 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:16:10,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:16:10,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:16:10,841 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/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:16:10,874 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:16:10,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:16:10,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:16:11,154 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:16:11,156 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:16:11,157 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:16:11,157 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:16:11,157 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:16:11,158 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:16:11,158 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:16:11,158 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:16:11,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:16:11,158 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:16:11,158 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:16:11,158 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:16:11,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:16:11,169 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 11:16:11,172 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 11:16:11,209 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:16:11,209 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:16:11,213 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 11:16:11,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:16:11,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:16:11,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:16:11,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:16:11,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:16:11,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:16:11,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:16:11,220 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:16:11,226 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:16:11,226 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/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 11:16:11,230 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:16:11,230 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:16:11,230 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:16:11,230 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:16:11,262 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:16:11,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:16:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:16:11,283 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:16:11,283 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:16:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:16:11,288 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:16:11,288 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:16:11,300 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 11:16:11,313 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:16:11,314 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 11:16:11,314 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-07-01 11:16:11,332 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2020-07-01 11:16:11,333 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 11:16:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:16:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 11:16:11,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:16:11,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:11,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:16:11,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:11,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:16:11,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:16:11,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2020-07-01 11:16:11,337 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:16:11,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-01 11:16:11,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:16:11,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:16:11,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:16:11,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:16:11,338 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:16:11,338 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:16:11,338 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:16:11,338 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:16:11,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:16:11,338 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:16:11,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:16:11,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:16:11 BasicIcfg [2020-07-01 11:16:11,345 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:16:11,347 INFO L168 Benchmark]: Toolchain (without parser) took 3405.32 ms. Allocated memory was 649.6 MB in the beginning and 699.9 MB in the end (delta: 50.3 MB). Free memory was 561.8 MB in the beginning and 415.9 MB in the end (delta: 145.9 MB). Peak memory consumption was 196.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:16:11,348 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 11:16:11,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.44 ms. Allocated memory was 649.6 MB in the beginning and 699.9 MB in the end (delta: 50.3 MB). Free memory was 561.8 MB in the beginning and 664.8 MB in the end (delta: -103.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:16:11,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.97 ms. Allocated memory is still 699.9 MB. Free memory was 664.8 MB in the beginning and 662.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:16:11,350 INFO L168 Benchmark]: Boogie Preprocessor took 19.68 ms. Allocated memory is still 699.9 MB. Free memory was 662.6 MB in the beginning and 661.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:16:11,351 INFO L168 Benchmark]: RCFGBuilder took 230.59 ms. Allocated memory is still 699.9 MB. Free memory was 661.5 MB in the beginning and 647.8 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:16:11,351 INFO L168 Benchmark]: BlockEncodingV2 took 69.93 ms. Allocated memory is still 699.9 MB. Free memory was 647.8 MB in the beginning and 642.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:16:11,352 INFO L168 Benchmark]: TraceAbstraction took 145.58 ms. Allocated memory is still 699.9 MB. Free memory was 641.4 MB in the beginning and 633.8 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:16:11,352 INFO L168 Benchmark]: BuchiAutomizer took 2598.05 ms. Allocated memory is still 699.9 MB. Free memory was 633.8 MB in the beginning and 415.9 MB in the end (delta: 217.9 MB). Peak memory consumption was 217.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:16:11,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 4 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 300.44 ms. Allocated memory was 649.6 MB in the beginning and 699.9 MB in the end (delta: 50.3 MB). Free memory was 561.8 MB in the beginning and 664.8 MB in the end (delta: -103.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.97 ms. Allocated memory is still 699.9 MB. Free memory was 664.8 MB in the beginning and 662.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.68 ms. Allocated memory is still 699.9 MB. Free memory was 662.6 MB in the beginning and 661.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 230.59 ms. Allocated memory is still 699.9 MB. Free memory was 661.5 MB in the beginning and 647.8 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.93 ms. Allocated memory is still 699.9 MB. Free memory was 647.8 MB in the beginning and 642.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 145.58 ms. Allocated memory is still 699.9 MB. Free memory was 641.4 MB in the beginning and 633.8 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2598.05 ms. Allocated memory is still 699.9 MB. Free memory was 633.8 MB in the beginning and 415.9 MB in the end (delta: 217.9 MB). Peak memory consumption was 217.9 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: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 17 SDslu, 0 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:16:04.649 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_kwwLUE/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:16:12.209 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check