/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:11:36,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:11:36,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:11:36,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:11:36,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:11:36,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:11:36,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:11:36,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:11:36,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:11:36,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:11:36,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:11:36,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:11:36,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:11:36,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:11:36,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:11:36,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:11:36,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:11:36,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:11:36,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:11:36,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:11:36,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:11:36,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:11:36,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:11:36,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:11:36,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:11:36,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:11:36,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:11:36,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:11:36,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:11:36,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:11:36,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:11:36,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:11:36,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:11:36,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:11:36,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:11:36,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:11:36,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:11:36,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:11:36,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:11:36,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:11:36,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:11:36,276 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:11:36,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:11:36,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:11:36,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:11:36,291 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:11:36,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:11:36,292 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:11:36,292 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:11:36,292 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:11:36,292 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:11:36,292 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:11:36,292 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:11:36,293 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:11:36,293 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:11:36,293 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:11:36,293 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:36,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:11:36,294 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:11:36,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:11:36,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:11:36,294 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:11:36,294 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:11:36,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:11:36,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:11:36,295 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:11:36,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:11:36,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:11:36,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:11:36,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:11:36,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:11:36,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:11:36,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:11:36,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:11:36,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:11:36,484 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:11:36,485 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:11:36,601 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_GeyR2k/tmp/d72fa31e1a48479f8f0e61b1de53581e/FLAG270eecc1d [2020-07-01 11:11:36,937 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:11:36,938 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:11:36,944 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_GeyR2k/tmp/d72fa31e1a48479f8f0e61b1de53581e/FLAG270eecc1d [2020-07-01 11:11:37,346 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_GeyR2k/tmp/d72fa31e1a48479f8f0e61b1de53581e [2020-07-01 11:11:37,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:11:37,359 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:11:37,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:11:37,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:11:37,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:11:37,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a3da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37, skipping insertion in model container [2020-07-01 11:11:37,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:11:37,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:11:37,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:11:37,610 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:11:37,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:11:37,639 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:11:37,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37 WrapperNode [2020-07-01 11:11:37,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:11:37,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:11:37,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:11:37,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:11:37,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:11:37,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:11:37,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:11:37,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:11:37,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:11:37,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:11:37,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:11:37,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:11:37,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:11:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:11:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:11:37,912 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:11:37,913 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 11:11:37,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:11:37 BoogieIcfgContainer [2020-07-01 11:11:37,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:11:37,917 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:11:37,917 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:11:37,919 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:11:37,920 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:11:37" (1/1) ... [2020-07-01 11:11:37,933 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 11:11:37,935 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:11:37,935 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:11:37,936 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:11:37,936 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:11:37,938 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:11:37,939 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:11:37,939 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:11:37,954 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:11:37,961 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:11:37,967 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 11:11:37,968 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:11:37,988 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 11:11:37,990 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:11:37,991 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:11:37,992 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:11:37,992 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:11:37,992 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:11:37,992 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:11:37,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:11:37 BasicIcfg [2020-07-01 11:11:37,993 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:11:37,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:11:37,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:11:37,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:11:37,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:11:37" (1/4) ... [2020-07-01 11:11:37,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5d9715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:11:37, skipping insertion in model container [2020-07-01 11:11:38,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (2/4) ... [2020-07-01 11:11:38,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5d9715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:11:38, skipping insertion in model container [2020-07-01 11:11:38,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:11:37" (3/4) ... [2020-07-01 11:11:38,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5d9715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:11:38, skipping insertion in model container [2020-07-01 11:11:38,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:11:37" (4/4) ... [2020-07-01 11:11:38,003 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:11:38,014 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:11:38,021 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:11:38,036 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:11:38,061 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:11:38,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:11:38,062 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:11:38,062 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:11:38,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:11:38,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:11:38,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:11:38,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:11:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:11:38,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:11:38,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:11:38,144 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:11:38,144 INFO L271 CegarLoopResult]: At program point L12-2(lines 12 14) the Hoare annotation is: true [2020-07-01 11:11:38,145 INFO L271 CegarLoopResult]: At program point L10-2(lines 10 16) the Hoare annotation is: true [2020-07-01 11:11:38,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:11:38 BasicIcfg [2020-07-01 11:11:38,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:11:38,155 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:11:38,155 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:11:38,159 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:11:38,160 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:11:38,160 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:11:37" (1/5) ... [2020-07-01 11:11:38,161 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d7d33cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:11:38, skipping insertion in model container [2020-07-01 11:11:38,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:11:38,162 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:11:37" (2/5) ... [2020-07-01 11:11:38,162 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d7d33cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:11:38, skipping insertion in model container [2020-07-01 11:11:38,162 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:11:38,162 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:11:37" (3/5) ... [2020-07-01 11:11:38,163 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d7d33cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:11:38, skipping insertion in model container [2020-07-01 11:11:38,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:11:38,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:11:37" (4/5) ... [2020-07-01 11:11:38,163 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d7d33cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:11:38, skipping insertion in model container [2020-07-01 11:11:38,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:11:38,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:11:38" (5/5) ... [2020-07-01 11:11:38,165 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:11:38,196 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:11:38,196 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:11:38,196 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:11:38,197 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:11:38,197 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:11:38,197 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:11:38,197 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:11:38,197 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:11:38,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:11:38,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:11:38,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:11:38,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:11:38,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:11:38,223 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:11:38,223 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:11:38,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:11:38,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:11:38,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:11:38,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:11:38,224 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:11:38,224 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:11:38,229 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L10-2true [2020-07-01 11:11:38,230 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-2true [39] L10-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 1) (<= 0 v_ULTIMATE.start_main_~x~0_11)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3#L12-2true [45] L12-2-->L10-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_14 (- 1)) v_ULTIMATE.start_main_~x~0_13) (<= v_ULTIMATE.start_main_~x~0_14 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L10-2true [2020-07-01 11:11:38,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:11:38,236 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 11:11:38,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:11:38,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77154482] [2020-07-01 11:11:38,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:11:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:38,318 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:11:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:11:38,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2215, now seen corresponding path program 1 times [2020-07-01 11:11:38,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:11:38,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094735555] [2020-07-01 11:11:38,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:11:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:38,337 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:11:38,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:11:38,339 INFO L82 PathProgramCache]: Analyzing trace with hash 63719, now seen corresponding path program 1 times [2020-07-01 11:11:38,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:11:38,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761174097] [2020-07-01 11:11:38,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:11:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:38,351 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:11:38,404 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:11:38,405 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:11:38,405 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:11:38,405 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:11:38,405 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:11:38,405 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:38,406 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:11:38,406 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:11:38,406 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:11:38,406 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:11:38,406 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:11:38,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:38,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:38,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:38,551 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:11:38,552 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:38,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:11:38,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:11:38,568 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:11:38,568 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:38,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:11:38,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:11:38,606 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:11:38,606 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:38,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:11:38,638 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:38,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:11:38,676 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:11:38,717 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:11:38,720 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:11:38,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:11:38,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:11:38,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:11:38,720 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:11:38,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:38,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:11:38,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:11:38,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:11:38,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:11:38,721 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:11:38,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:38,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:38,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:38,808 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:11:38,814 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:38,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:11:38,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:11:38,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:11:38,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:11:38,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:11:38,829 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:11:38,829 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:11:38,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:38,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:11:38,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:11:38,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:11:38,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:11:38,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:11:38,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:11:38,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:11:38,881 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:38,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:11:38,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:11:38,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:11:38,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:11:38,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:11:38,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:11:38,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:11:38,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:11:38,925 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:11:38,931 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:11:38,931 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/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:38,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:11:38,937 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:11:38,938 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:11:38,938 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 11:11:38,973 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:11:39,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:11:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:11:39,010 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:11:39,012 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:11:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:11:39,025 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:11:39,026 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:11:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:11:39,069 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:11:39,075 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:11:39,076 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:11:39,114 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-07-01 11:11:39,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:11:39,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:11:39,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:11:39,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:11:39,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:11:39,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:11:39,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:11:39,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:11:39,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:11:39,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 11:11:39,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:11:39,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 11:11:39,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:11:39,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:11:39,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 11:11:39,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:11:39,134 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 11:11:39,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 11:11:39,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 11:11:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:11:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:11:39,162 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:11:39,162 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:11:39,162 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:11:39,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 11:11:39,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:11:39,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:11:39,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:11:39,163 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:11:39,163 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:11:39,164 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 46#L10-2 [39] L10-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 1) (<= 0 v_ULTIMATE.start_main_~x~0_11)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 42#L12-2 [2020-07-01 11:11:39,164 INFO L796 eck$LassoCheckResult]: Loop: 42#L12-2 [33] L12-2-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~y~0_5 (* v_ULTIMATE.start_main_~y~0_6 2))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 42#L12-2 [2020-07-01 11:11:39,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:11:39,164 INFO L82 PathProgramCache]: Analyzing trace with hash 2054, now seen corresponding path program 1 times [2020-07-01 11:11:39,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:11:39,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285021540] [2020-07-01 11:11:39,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:11:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:39,172 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:11:39,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:11:39,173 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-07-01 11:11:39,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:11:39,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616739679] [2020-07-01 11:11:39,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:11:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:39,180 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:11:39,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:11:39,180 INFO L82 PathProgramCache]: Analyzing trace with hash 63707, now seen corresponding path program 1 times [2020-07-01 11:11:39,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:11:39,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511553849] [2020-07-01 11:11:39,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:11:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:11:39,190 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:11:39,220 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:11:39,220 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:11:39,220 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:11:39,220 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:11:39,220 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:11:39,221 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:39,221 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:11:39,221 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:11:39,221 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:11:39,221 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:11:39,221 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:11:39,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,300 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:11:39,300 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:39,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:11:39,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:11:39,314 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:11:39,314 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:39,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:11:39,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:11:39,352 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:11:39,353 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:39,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:11:39,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:11:39,392 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:11:39,392 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:39,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:11:39,426 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:11:39,430 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:11:39,430 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:39,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:11:39,485 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:11:39,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:11:39,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:11:39,634 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:11:39,637 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:11:39,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:11:39,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:11:39,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:11:39,637 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:11:39,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:39,638 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:11:39,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:11:39,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:11:39,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:11:39,638 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:11:39,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:11:39,743 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:11:39,743 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:39,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:11:39,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:11:39,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:11:39,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:11:39,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:11:39,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:11:39,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:11:39,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:39,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:11:39,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:11:39,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:11:39,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:11:39,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:11:39,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:11:39,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:11:39,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:11:39,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:39,842 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:11:39,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:11:39,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:11:39,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:11:39,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:11:39,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:11:39,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:11:39,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:39,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:11:39,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:11:39,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:11:39,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:11:39,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:11:39,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:11:39,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:11:39,908 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:11:39,918 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 11:11:39,919 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:11:39,924 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:11:39,930 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:11:39,930 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:11:39,930 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-07-01 11:11:39,964 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:11:40,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:11:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:11:40,012 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 11:11:40,012 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:11:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:11:40,020 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:11:40,020 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:11:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:11:40,032 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:11:40,033 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:11:40,033 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 11:11:40,089 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 17 states and 26 transitions. Complement of second has 10 states. [2020-07-01 11:11:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:11:40,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:11:40,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-07-01 11:11:40,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:11:40,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:11:40,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:11:40,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:11:40,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:11:40,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:11:40,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2020-07-01 11:11:40,095 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:11:40,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2020-07-01 11:11:40,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:11:40,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:11:40,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:11:40,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:11:40,096 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:11:40,096 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:11:40,096 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:11:40,096 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:11:40,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:11:40,097 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:11:40,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:11:40,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:11:40 BasicIcfg [2020-07-01 11:11:40,103 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:11:40,106 INFO L168 Benchmark]: Toolchain (without parser) took 2745.98 ms. Allocated memory was 649.6 MB in the beginning and 682.1 MB in the end (delta: 32.5 MB). Free memory was 562.7 MB in the beginning and 415.2 MB in the end (delta: 147.5 MB). Peak memory consumption was 180.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:11:40,106 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:11:40,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.11 ms. Allocated memory was 649.6 MB in the beginning and 682.1 MB in the end (delta: 32.5 MB). Free memory was 561.6 MB in the beginning and 647.1 MB in the end (delta: -85.5 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:11:40,107 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 682.1 MB. Free memory was 647.1 MB in the beginning and 644.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:11:40,108 INFO L168 Benchmark]: Boogie Preprocessor took 20.27 ms. Allocated memory is still 682.1 MB. Free memory was 644.9 MB in the beginning and 643.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:11:40,109 INFO L168 Benchmark]: RCFGBuilder took 221.28 ms. Allocated memory is still 682.1 MB. Free memory was 643.8 MB in the beginning and 628.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:11:40,109 INFO L168 Benchmark]: BlockEncodingV2 took 76.58 ms. Allocated memory is still 682.1 MB. Free memory was 628.9 MB in the beginning and 623.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:11:40,110 INFO L168 Benchmark]: TraceAbstraction took 159.71 ms. Allocated memory is still 682.1 MB. Free memory was 622.4 MB in the beginning and 613.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:11:40,110 INFO L168 Benchmark]: BuchiAutomizer took 1948.47 ms. Allocated memory is still 682.1 MB. Free memory was 613.8 MB in the beginning and 415.2 MB in the end (delta: 198.6 MB). Peak memory consumption was 198.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:11:40,114 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 280.11 ms. Allocated memory was 649.6 MB in the beginning and 682.1 MB in the end (delta: 32.5 MB). Free memory was 561.6 MB in the beginning and 647.1 MB in the end (delta: -85.5 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 682.1 MB. Free memory was 647.1 MB in the beginning and 644.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.27 ms. Allocated memory is still 682.1 MB. Free memory was 644.9 MB in the beginning and 643.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 221.28 ms. Allocated memory is still 682.1 MB. Free memory was 643.8 MB in the beginning and 628.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 76.58 ms. Allocated memory is still 682.1 MB. Free memory was 628.9 MB in the beginning and 623.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 159.71 ms. Allocated memory is still 682.1 MB. Free memory was 622.4 MB in the beginning and 613.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1948.47 ms. Allocated memory is still 682.1 MB. Free memory was 613.8 MB in the beginning and 415.2 MB in the end (delta: 198.6 MB). Peak memory consumption was 198.6 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 12 SDslu, 0 SDs, 0 SdLazy, 16 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax175 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf92 smp100 dnf100 smp100 tf104 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:11:34.042 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_GeyR2k/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:11:40.750 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check