/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 10:55:06,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:55:06,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:55:06,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:55:06,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:55:06,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:55:06,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:55:06,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:55:06,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:55:06,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:55:06,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:55:06,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:55:06,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:55:06,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:55:06,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:55:06,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:55:06,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:55:06,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:55:06,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:55:06,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:55:06,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:55:06,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:55:06,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:55:06,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:55:06,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:55:06,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:55:06,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:55:06,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:55:06,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:55:06,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:55:06,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:55:06,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:55:06,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:55:06,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:55:06,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:55:06,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:55:06,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:55:06,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:55:06,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:55:06,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:55:06,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:55:06,301 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 10:55:06,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:55:06,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:55:06,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:55:06,319 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:55:06,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:55:06,319 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:55:06,319 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:55:06,319 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:55:06,319 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:55:06,320 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:55:06,320 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:55:06,320 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:55:06,320 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:55:06,320 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:55:06,320 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:06,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:55:06,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:55:06,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:55:06,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:55:06,321 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:55:06,321 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:55:06,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:55:06,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:55:06,322 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:55:06,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:55:06,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:55:06,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:55:06,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:55:06,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:55:06,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:55:06,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:55:06,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:55:06,503 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:55:06,504 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:55:06,504 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:55:06,592 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_aou7Bm/tmp/97085be6e154454daf7407d9ceec65ba/FLAG62a001166 [2020-07-01 10:55:06,928 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:55:06,929 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:55:06,936 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_aou7Bm/tmp/97085be6e154454daf7407d9ceec65ba/FLAG62a001166 [2020-07-01 10:55:07,344 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_aou7Bm/tmp/97085be6e154454daf7407d9ceec65ba [2020-07-01 10:55:07,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:55:07,357 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:55:07,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:55:07,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:55:07,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:55:07,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4587fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07, skipping insertion in model container [2020-07-01 10:55:07,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:55:07,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:55:07,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:55:07,605 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:55:07,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:55:07,634 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:55:07,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07 WrapperNode [2020-07-01 10:55:07,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:55:07,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:55:07,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:55:07,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:55:07,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:55:07,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:55:07,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:55:07,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:55:07,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:55:07,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:55:07,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:55:07,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:55:07,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (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 10:55:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:55:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:55:07,894 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:55:07,895 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:55:07,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:55:07 BoogieIcfgContainer [2020-07-01 10:55:07,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:55:07,899 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:55:07,899 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:55:07,901 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:55:07,902 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:55:07" (1/1) ... [2020-07-01 10:55:07,914 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 10:55:07,916 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:55:07,916 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:55:07,917 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:55:07,917 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:55:07,919 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:55:07,919 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:55:07,920 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:55:07,933 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:55:07,940 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 10:55:07,945 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:55:07,947 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:55:07,960 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 10:55:07,962 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 10:55:07,964 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:55:07,964 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:55:07,964 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:55:07,964 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:55:07,965 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 10:55:07,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:55:07 BasicIcfg [2020-07-01 10:55:07,965 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:55:07,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:55:07,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:55:07,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:55:07,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:55:07" (1/4) ... [2020-07-01 10:55:07,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b987c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:55:07, skipping insertion in model container [2020-07-01 10:55:07,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (2/4) ... [2020-07-01 10:55:07,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b987c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:55:07, skipping insertion in model container [2020-07-01 10:55:07,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:55:07" (3/4) ... [2020-07-01 10:55:07,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b987c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:55:07, skipping insertion in model container [2020-07-01 10:55:07,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:55:07" (4/4) ... [2020-07-01 10:55:07,975 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:55:07,985 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:55:07,992 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:55:08,006 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:55:08,029 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:55:08,029 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:55:08,029 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:55:08,029 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:55:08,029 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:55:08,029 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:55:08,030 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:55:08,030 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:55:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 10:55:08,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:55:08,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 10:55:08,102 INFO L271 CegarLoopResult]: At program point L19-2(lines 17 24) the Hoare annotation is: true [2020-07-01 10:55:08,102 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:55:08,103 INFO L268 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-07-01 10:55:08,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:55:08 BasicIcfg [2020-07-01 10:55:08,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:55:08,112 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:55:08,112 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:55:08,115 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:55:08,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:08,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:55:07" (1/5) ... [2020-07-01 10:55:08,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e9aee13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:55:08, skipping insertion in model container [2020-07-01 10:55:08,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:08,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:07" (2/5) ... [2020-07-01 10:55:08,118 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e9aee13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:55:08, skipping insertion in model container [2020-07-01 10:55:08,118 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:08,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:55:07" (3/5) ... [2020-07-01 10:55:08,118 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e9aee13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:55:08, skipping insertion in model container [2020-07-01 10:55:08,118 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:08,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:55:07" (4/5) ... [2020-07-01 10:55:08,119 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e9aee13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:55:08, skipping insertion in model container [2020-07-01 10:55:08,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:08,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:55:08" (5/5) ... [2020-07-01 10:55:08,121 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:55:08,149 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:55:08,150 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:55:08,150 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:55:08,150 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:55:08,150 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:55:08,150 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:55:08,150 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:55:08,150 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:55:08,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:55:08,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:55:08,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:08,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:08,178 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:55:08,178 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:55:08,178 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:55:08,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:55:08,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:55:08,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:08,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:08,179 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:55:08,179 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:55:08,184 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 4#L19-2true [2020-07-01 10:55:08,185 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 5#L19true [34] L19-->L19-2: Formula: (and (> 0 v_ULTIMATE.start_main_~b~0_10) (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 4#L19-2true [2020-07-01 10:55:08,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:08,191 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-07-01 10:55:08,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:08,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922108924] [2020-07-01 10:55:08,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:08,272 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:08,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:08,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 1 times [2020-07-01 10:55:08,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:08,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380754603] [2020-07-01 10:55:08,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:08,292 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:08,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:08,294 INFO L82 PathProgramCache]: Analyzing trace with hash 54718, now seen corresponding path program 1 times [2020-07-01 10:55:08,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:08,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502975117] [2020-07-01 10:55:08,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:08,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:08,353 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:08,354 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:08,354 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:08,354 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:08,354 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:08,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:08,355 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:08,355 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:08,355 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:55:08,355 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:08,356 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:08,375 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 10:55:08,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:08,390 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 10:55:08,488 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:08,489 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 10:55:08,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:08,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:08,506 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:08,507 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 10:55:08,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:08,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:08,545 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:08,545 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 10:55:08,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:08,578 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 10:55:08,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:08,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:08,664 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:55:08,667 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:08,667 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:08,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:08,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:08,667 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:55:08,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:08,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:08,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:08,668 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:55:08,668 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:08,668 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:08,670 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 10:55:08,675 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 10:55:08,693 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 10:55:08,763 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:08,769 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 10:55:08,775 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 10:55:08,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:08,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:08,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:08,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:08,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:08,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:08,792 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 10:55:08,825 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 10:55:08,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:08,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:08,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:08,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:08,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:08,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:08,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:08,834 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:55:08,839 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 10:55:08,839 INFO L444 ModelExtractionUtils]: 2 out of 4 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 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 10:55:08,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:55:08,845 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:55:08,845 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:55:08,846 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0) = -1*ULTIMATE.start_main_~b~0 Supporting invariants [] [2020-07-01 10:55:08,879 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:55:08,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:08,927 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:55:08,929 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:08,939 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:55:08,940 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:08,942 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 10:55:08,955 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 10:55:08,960 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 10:55:08,961 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 10:55:08,995 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 10:55:08,996 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 10:55:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:55:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 10:55:09,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:55:09,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:09,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:55:09,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:09,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 10:55:09,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:09,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 10:55:09,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:55:09,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 10:55:09,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 10:55:09,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 10:55:09,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 10:55:09,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:55:09,016 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 10:55:09,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 10:55:09,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 10:55:09,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 10:55:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 10:55:09,046 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 10:55:09,046 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 10:55:09,046 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:55:09,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 10:55:09,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:55:09,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:09,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:09,047 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 10:55:09,047 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:55:09,048 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 42#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 47#L19 [29] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 (+ (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1))) (<= 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 43#L19-2 [2020-07-01 10:55:09,048 INFO L796 eck$LassoCheckResult]: Loop: 43#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 44#L19 [34] L19-->L19-2: Formula: (and (> 0 v_ULTIMATE.start_main_~b~0_10) (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 43#L19-2 [2020-07-01 10:55:09,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:09,048 INFO L82 PathProgramCache]: Analyzing trace with hash 54713, now seen corresponding path program 1 times [2020-07-01 10:55:09,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:09,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142987471] [2020-07-01 10:55:09,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,061 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:09,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:09,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 2 times [2020-07-01 10:55:09,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:09,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839622636] [2020-07-01 10:55:09,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,071 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:09,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:09,071 INFO L82 PathProgramCache]: Analyzing trace with hash 52580095, now seen corresponding path program 1 times [2020-07-01 10:55:09,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:09,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687698833] [2020-07-01 10:55:09,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,085 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:09,116 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:09,116 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:09,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:09,117 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:09,117 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:09,117 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:09,117 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:09,117 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:09,117 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:55:09,117 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:09,117 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:09,119 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 10:55:09,128 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 10:55:09,132 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 10:55:09,211 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:09,211 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:09,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:09,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:09,223 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:09,223 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 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 10:55:09,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:09,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:09,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:09,261 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 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 10:55:09,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:09,295 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 10:55:09,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:09,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:09,396 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:55:09,398 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:09,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:09,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:09,399 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:09,399 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:55:09,399 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:09,399 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:09,399 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:09,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:55:09,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:09,400 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:09,402 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 10:55:09,407 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 10:55:09,410 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 10:55:09,475 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:09,476 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:09,483 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 10:55:09,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:09,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:09,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:09,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:09,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:09,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:09,494 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 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 10:55:09,528 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 10:55:09,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:09,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:09,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:09,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:09,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:09,534 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:09,538 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 10:55:09,571 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 10:55:09,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:09,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:09,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:09,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:09,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:09,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:09,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:09,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:55:09,583 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 10:55:09,584 INFO L444 ModelExtractionUtils]: 2 out of 4 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 10:55:09,587 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:55:09,588 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:55:09,588 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:55:09,588 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0) = -1*ULTIMATE.start_main_~b~0 Supporting invariants [] [2020-07-01 10:55:09,620 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:55:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:09,642 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:55:09,642 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:09,650 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:55:09,650 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:09,650 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 10:55:09,651 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 10:55:09,651 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 10:55:09,651 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 10:55:09,665 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 10:55:09,666 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 10:55:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:55:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 10:55:09,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:55:09,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:09,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 10:55:09,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:09,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 10:55:09,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:09,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-07-01 10:55:09,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:55:09,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2020-07-01 10:55:09,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 10:55:09,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 10:55:09,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-07-01 10:55:09,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:55:09,671 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-01 10:55:09,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-07-01 10:55:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-07-01 10:55:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 10:55:09,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-01 10:55:09,672 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 10:55:09,672 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 10:55:09,673 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 10:55:09,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-07-01 10:55:09,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:55:09,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:09,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:09,673 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:55:09,674 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:55:09,674 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 92#L19-2 [2020-07-01 10:55:09,674 INFO L796 eck$LassoCheckResult]: Loop: 92#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 94#L19 [29] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 (+ (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1))) (<= 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 92#L19-2 [2020-07-01 10:55:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:09,674 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-07-01 10:55:09,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:09,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502637403] [2020-07-01 10:55:09,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,681 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:09,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:09,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1858, now seen corresponding path program 1 times [2020-07-01 10:55:09,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:09,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057171855] [2020-07-01 10:55:09,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,689 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:09,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:09,690 INFO L82 PathProgramCache]: Analyzing trace with hash 54713, now seen corresponding path program 2 times [2020-07-01 10:55:09,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:09,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458968340] [2020-07-01 10:55:09,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:09,700 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:09,719 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:09,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:09,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:09,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:09,720 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:09,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:09,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:09,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:09,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:55:09,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:09,721 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:09,722 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 10:55:09,734 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 10:55:09,737 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 10:55:09,797 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:09,798 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 10:55:09,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:09,807 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 10:55:09,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:09,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:09,885 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:55:09,887 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:09,887 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:09,887 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:09,888 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:09,888 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:55:09,888 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:09,888 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:09,888 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:09,888 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:55:09,888 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:09,888 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:09,890 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 10:55:09,901 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 10:55:09,905 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 10:55:09,963 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:09,963 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:09,970 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 10:55:09,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:09,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:09,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:09,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:09,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:09,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:09,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:09,978 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:55:09,981 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:55:09,982 INFO L444 ModelExtractionUtils]: 1 out of 4 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 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 10:55:09,990 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:55:09,990 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:55:09,991 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:55:09,991 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0) = 2*ULTIMATE.start_main_~b~0 + 1 Supporting invariants [] [2020-07-01 10:55:10,021 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:55:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:10,038 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:55:10,038 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:10,043 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:55:10,043 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:10,043 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 10:55:10,044 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 10:55:10,044 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 10:55:10,044 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-07-01 10:55:10,055 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 10:55:10,056 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 10:55:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:55:10,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 10:55:10,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:55:10,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:10,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:55:10,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:10,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 10:55:10,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:10,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2020-07-01 10:55:10,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:55:10,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2020-07-01 10:55:10,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 10:55:10,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 10:55:10,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-07-01 10:55:10,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:55:10,061 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-01 10:55:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-07-01 10:55:10,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-07-01 10:55:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 10:55:10,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2020-07-01 10:55:10,062 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 10:55:10,062 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 10:55:10,062 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 10:55:10,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2020-07-01 10:55:10,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:55:10,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:10,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:10,065 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-01 10:55:10,065 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:55:10,066 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 136#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 138#L19 [34] L19-->L19-2: Formula: (and (> 0 v_ULTIMATE.start_main_~b~0_10) (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 142#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 140#L19 [2020-07-01 10:55:10,066 INFO L796 eck$LassoCheckResult]: Loop: 140#L19 [29] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 (+ (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1))) (<= 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 141#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 140#L19 [2020-07-01 10:55:10,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:10,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1696286, now seen corresponding path program 2 times [2020-07-01 10:55:10,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:10,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698671781] [2020-07-01 10:55:10,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,078 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:10,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:10,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1888, now seen corresponding path program 2 times [2020-07-01 10:55:10,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:10,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556094449] [2020-07-01 10:55:10,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,086 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:10,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:10,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1630131773, now seen corresponding path program 2 times [2020-07-01 10:55:10,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:10,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020098120] [2020-07-01 10:55:10,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,099 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:10,116 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:10,116 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:10,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:10,117 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:10,117 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:10,117 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,117 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:10,117 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:10,117 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 10:55:10,117 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:10,117 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:10,119 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 10:55:10,122 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 10:55:10,137 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 10:55:10,192 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:10,192 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:10,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:10,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:10,205 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:10,237 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:10,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:10,309 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:55:10,312 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:10,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:10,312 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:10,312 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:10,312 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:55:10,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:10,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:10,313 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:10,313 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 10:55:10,313 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:10,313 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:10,314 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 10:55:10,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:10,336 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 10:55:10,378 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:10,378 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:10,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:10,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:10,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:10,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:10,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:10,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:10,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:10,390 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 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:10,422 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 10:55:10,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:10,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:10,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:10,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:10,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:10,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:10,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:10,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:55:10,433 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:55:10,434 INFO L444 ModelExtractionUtils]: 1 out of 4 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 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:10,440 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:55:10,440 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:55:10,440 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:55:10,440 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0) = 2*ULTIMATE.start_main_~b~0 + 1 Supporting invariants [] [2020-07-01 10:55:10,470 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:55:10,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:10,487 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:55:10,488 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:10,492 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:55:10,492 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:10,522 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 10:55:10,537 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:55:10,537 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 10:55:10,538 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-07-01 10:55:10,595 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 32 states and 40 transitions. Complement of second has 10 states. [2020-07-01 10:55:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 10:55:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:55:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2020-07-01 10:55:10,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 10:55:10,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:10,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 10:55:10,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:10,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 10:55:10,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:10,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2020-07-01 10:55:10,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:55:10,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 10 states and 12 transitions. [2020-07-01 10:55:10,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 10:55:10,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 10:55:10,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2020-07-01 10:55:10,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:55:10,603 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-07-01 10:55:10,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2020-07-01 10:55:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2020-07-01 10:55:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 10:55:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-07-01 10:55:10,604 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-07-01 10:55:10,604 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-07-01 10:55:10,604 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 10:55:10,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-07-01 10:55:10,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:55:10,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:10,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:10,605 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-01 10:55:10,606 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-07-01 10:55:10,606 INFO L794 eck$LassoCheckResult]: Stem: 226#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 227#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 229#L19 [34] L19-->L19-2: Formula: (and (> 0 v_ULTIMATE.start_main_~b~0_10) (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 232#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 231#L19 [2020-07-01 10:55:10,606 INFO L796 eck$LassoCheckResult]: Loop: 231#L19 [29] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 (+ (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1))) (<= 0 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 230#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 229#L19 [34] L19-->L19-2: Formula: (and (> 0 v_ULTIMATE.start_main_~b~0_10) (= v_ULTIMATE.start_main_~b~0_9 (- v_ULTIMATE.start_main_~b~0_10))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 232#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~a~0_7 (+ v_ULTIMATE.start_main_~b~0_6 v_ULTIMATE.start_main_~a~0_8)) (<= 0 v_ULTIMATE.start_main_~a~0_8)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 231#L19 [2020-07-01 10:55:10,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:10,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1696286, now seen corresponding path program 3 times [2020-07-01 10:55:10,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:10,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441665995] [2020-07-01 10:55:10,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,617 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:10,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1815450, now seen corresponding path program 1 times [2020-07-01 10:55:10,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:10,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694943435] [2020-07-01 10:55:10,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,629 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:10,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:10,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1106428105, now seen corresponding path program 3 times [2020-07-01 10:55:10,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:10,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780356239] [2020-07-01 10:55:10,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:10,643 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:10,682 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:10,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:10,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:10,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:10,683 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:10,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:10,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:10,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 10:55:10,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:10,683 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:10,685 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 10:55:10,687 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 10:55:10,690 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 10:55:10,751 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:10,751 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:10,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:10,759 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:10,759 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:10,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:10,796 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:10,796 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:10,828 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:10,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:10,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:11,043 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:55:11,045 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:11,045 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:11,045 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:11,045 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:11,045 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:55:11,045 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:11,046 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:11,046 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:11,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 10:55:11,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:11,046 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:11,047 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 10:55:11,051 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 10:55:11,053 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 10:55:11,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:11,099 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:11,102 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 10:55:11,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:11,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:11,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:11,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:11,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:11,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:11,110 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 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:11,141 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 10:55:11,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:11,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:11,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:11,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:11,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:11,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:11,149 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 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:11,181 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 10:55:11,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:11,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:11,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:11,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:11,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:11,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:11,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:11,188 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:55:11,192 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 10:55:11,192 INFO L444 ModelExtractionUtils]: 0 out of 4 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 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:11,195 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:55:11,196 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:55:11,196 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:55:11,196 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~a~0) = -1*ULTIMATE.start_main_~b~0 + 1*ULTIMATE.start_main_~a~0 Supporting invariants [] [2020-07-01 10:55:11,225 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:55:11,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:11,241 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:55:11,242 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:11,247 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 10:55:11,247 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:55:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:11,270 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 10:55:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:11,274 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 10:55:11,274 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:55:11,274 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 10:55:11,275 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2020-07-01 10:55:11,310 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 18 states and 24 transitions. Complement of second has 8 states. [2020-07-01 10:55:11,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 10:55:11,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 10:55:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-07-01 10:55:11,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 10:55:11,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:11,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 10:55:11,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:11,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 8 letters. [2020-07-01 10:55:11,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:11,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2020-07-01 10:55:11,315 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:55:11,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-07-01 10:55:11,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:55:11,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:55:11,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:55:11,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:55:11,316 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:55:11,316 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:55:11,316 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:55:11,316 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 10:55:11,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:55:11,316 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:55:11,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:55:11,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:55:11 BasicIcfg [2020-07-01 10:55:11,322 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:55:11,325 INFO L168 Benchmark]: Toolchain (without parser) took 3967.33 ms. Allocated memory was 514.9 MB in the beginning and 603.5 MB in the end (delta: 88.6 MB). Free memory was 436.4 MB in the beginning and 515.4 MB in the end (delta: -79.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:11,325 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 455.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:55:11,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.83 ms. Allocated memory was 514.9 MB in the beginning and 567.3 MB in the end (delta: 52.4 MB). Free memory was 436.4 MB in the beginning and 536.8 MB in the end (delta: -100.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:11,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.29 ms. Allocated memory is still 567.3 MB. Free memory was 536.8 MB in the beginning and 535.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:11,327 INFO L168 Benchmark]: Boogie Preprocessor took 18.30 ms. Allocated memory is still 567.3 MB. Free memory was 535.2 MB in the beginning and 533.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:11,327 INFO L168 Benchmark]: RCFGBuilder took 212.33 ms. Allocated memory is still 567.3 MB. Free memory was 533.5 MB in the beginning and 522.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:11,328 INFO L168 Benchmark]: BlockEncodingV2 took 66.62 ms. Allocated memory is still 567.3 MB. Free memory was 522.9 MB in the beginning and 518.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:11,328 INFO L168 Benchmark]: TraceAbstraction took 144.50 ms. Allocated memory is still 567.3 MB. Free memory was 517.1 MB in the beginning and 508.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:11,329 INFO L168 Benchmark]: BuchiAutomizer took 3210.60 ms. Allocated memory was 567.3 MB in the beginning and 603.5 MB in the end (delta: 36.2 MB). Free memory was 508.8 MB in the beginning and 515.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:11,332 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 514.9 MB. Free memory is still 455.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 276.83 ms. Allocated memory was 514.9 MB in the beginning and 567.3 MB in the end (delta: 52.4 MB). Free memory was 436.4 MB in the beginning and 536.8 MB in the end (delta: -100.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.29 ms. Allocated memory is still 567.3 MB. Free memory was 536.8 MB in the beginning and 535.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.30 ms. Allocated memory is still 567.3 MB. Free memory was 535.2 MB in the beginning and 533.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. * RCFGBuilder took 212.33 ms. Allocated memory is still 567.3 MB. Free memory was 533.5 MB in the beginning and 522.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 66.62 ms. Allocated memory is still 567.3 MB. Free memory was 522.9 MB in the beginning and 518.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.50 ms. Allocated memory is still 567.3 MB. Free memory was 517.1 MB in the beginning and 508.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3210.60 ms. Allocated memory was 567.3 MB in the beginning and 603.5 MB in the end (delta: 36.2 MB). Free memory was 508.8 MB in the beginning and 515.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 17]: 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 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function -1 * b and consists of 3 locations. One nondeterministic module has affine ranking function -1 * b and consists of 3 locations. One nondeterministic module has affine ranking function 2 * b + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * b + 1 and consists of 5 locations. One nondeterministic module has affine ranking function -1 * b + a and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 15 SDtfs, 26 SDslu, 0 SDs, 0 SdLazy, 53 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax162 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf100 smp100 tf106 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 10:55:04.027 ----------------------------------------------- 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_aou7Bm/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:55:11.766 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check