/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:38:20,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:38:20,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:38:20,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:38:20,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:38:20,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:38:20,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:38:20,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:38:20,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:38:20,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:38:20,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:38:20,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:38:20,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:38:20,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:38:20,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:38:20,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:38:20,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:38:20,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:38:20,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:38:20,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:38:20,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:38:20,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:38:20,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:38:20,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:38:20,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:38:20,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:38:20,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:38:20,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:38:20,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:38:20,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:38:20,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:38:20,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:38:20,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:38:20,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:38:20,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:38:20,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:38:20,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:38:20,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:38:20,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:38:20,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:38:20,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:38:20,977 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:38:20,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:38:20,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:38:20,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:38:20,993 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:38:20,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:38:20,993 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:38:20,993 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:38:20,994 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:38:20,994 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:38:20,994 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:38:20,994 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:38:20,994 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:38:20,995 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:38:20,995 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:38:20,995 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:20,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:38:20,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:38:20,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:38:20,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:38:20,996 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:38:20,996 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:38:20,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:38:20,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:38:20,996 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:38:20,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:38:20,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:38:20,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:38:20,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:38:20,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:38:21,159 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:38:21,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:38:21,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:38:21,177 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:38:21,178 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:38:21,178 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:38:21,236 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_3ni_Qq/tmp/284816acd2aa4a5387826aeea71a4bec/FLAG710c2ab1f [2020-07-01 11:38:21,565 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:38:21,565 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:38:21,572 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_3ni_Qq/tmp/284816acd2aa4a5387826aeea71a4bec/FLAG710c2ab1f [2020-07-01 11:38:22,013 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_3ni_Qq/tmp/284816acd2aa4a5387826aeea71a4bec [2020-07-01 11:38:22,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:38:22,025 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:38:22,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:38:22,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:38:22,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:38:22,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62594bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22, skipping insertion in model container [2020-07-01 11:38:22,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:38:22,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:38:22,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:38:22,295 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:38:22,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:38:22,326 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:38:22,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22 WrapperNode [2020-07-01 11:38:22,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:38:22,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:38:22,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:38:22,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:38:22,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:38:22,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:38:22,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:38:22,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:38:22,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:38:22,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:38:22,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:38:22,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:38:22,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:38:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:38:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:38:22,630 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:38:22,630 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 11:38:22,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:38:22 BoogieIcfgContainer [2020-07-01 11:38:22,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:38:22,634 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:38:22,635 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:38:22,637 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:38:22,637 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:38:22" (1/1) ... [2020-07-01 11:38:22,650 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 14 edges [2020-07-01 11:38:22,651 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:38:22,652 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:38:22,653 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:38:22,653 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:38:22,655 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:38:22,655 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:38:22,656 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:38:22,672 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:38:22,689 INFO L200 BlockEncoder]: SBE split 4 edges [2020-07-01 11:38:22,693 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-07-01 11:38:22,695 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:38:22,707 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:38:22,708 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:38:22,710 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:38:22,710 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:38:22,710 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:38:22,711 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:38:22,711 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 11 edges [2020-07-01 11:38:22,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:38:22 BasicIcfg [2020-07-01 11:38:22,712 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:38:22,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:38:22,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:38:22,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:38:22,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:38:22" (1/4) ... [2020-07-01 11:38:22,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d03136c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:38:22, skipping insertion in model container [2020-07-01 11:38:22,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (2/4) ... [2020-07-01 11:38:22,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d03136c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:38:22, skipping insertion in model container [2020-07-01 11:38:22,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:38:22" (3/4) ... [2020-07-01 11:38:22,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d03136c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:38:22, skipping insertion in model container [2020-07-01 11:38:22,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:38:22" (4/4) ... [2020-07-01 11:38:22,722 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:38:22,733 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:38:22,740 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:38:22,754 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:38:22,778 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:38:22,778 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:38:22,778 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:38:22,778 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:38:22,778 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:38:22,779 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:38:22,779 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:38:22,779 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:38:22,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 11:38:22,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:38:22,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 11:38:22,861 INFO L271 CegarLoopResult]: At program point L19-2(lines 19 20) the Hoare annotation is: true [2020-07-01 11:38:22,861 INFO L271 CegarLoopResult]: At program point L19-3(lines 15 21) the Hoare annotation is: true [2020-07-01 11:38:22,861 INFO L271 CegarLoopResult]: At program point L16-2(lines 16 17) the Hoare annotation is: true [2020-07-01 11:38:22,862 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:38:22,862 INFO L268 CegarLoopResult]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-07-01 11:38:22,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:38:22 BasicIcfg [2020-07-01 11:38:22,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:38:22,871 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:38:22,871 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:38:22,874 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:38:22,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:38:22,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:38:22" (1/5) ... [2020-07-01 11:38:22,876 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1286e6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:38:22, skipping insertion in model container [2020-07-01 11:38:22,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:38:22,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:38:22" (2/5) ... [2020-07-01 11:38:22,877 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1286e6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:38:22, skipping insertion in model container [2020-07-01 11:38:22,877 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:38:22,877 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:38:22" (3/5) ... [2020-07-01 11:38:22,877 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1286e6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:38:22, skipping insertion in model container [2020-07-01 11:38:22,877 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:38:22,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:38:22" (4/5) ... [2020-07-01 11:38:22,878 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1286e6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:38:22, skipping insertion in model container [2020-07-01 11:38:22,878 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:38:22,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:38:22" (5/5) ... [2020-07-01 11:38:22,880 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:38:22,908 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:38:22,909 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:38:22,909 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:38:22,909 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:38:22,909 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:38:22,909 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:38:22,909 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:38:22,910 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:38:22,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 11:38:22,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:38:22,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:38:22,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:38:22,936 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:38:22,936 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:38:22,936 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:38:22,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 11:38:22,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:38:22,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:38:22,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:38:22,938 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:38:22,938 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:38:22,943 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [43] ULTIMATE.startENTRY-->L19-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5, ULTIMATE.start_main_#t~post4] 4#L19-3true [2020-07-01 11:38:22,944 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-3true [46] L19-3-->L16-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 7#L16-2true [62] L16-2-->L16-3: Formula: (> 0 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 6#L16-3true [52] L16-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_6 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5] 5#L19-2true [66] L19-2-->L19-3: Formula: (> v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~n~0_5) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_5, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_5, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet6] 4#L19-3true [2020-07-01 11:38:22,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:22,950 INFO L82 PathProgramCache]: Analyzing trace with hash 74, now seen corresponding path program 1 times [2020-07-01 11:38:22,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:22,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499413577] [2020-07-01 11:38:22,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:23,024 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:23,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2355167, now seen corresponding path program 1 times [2020-07-01 11:38:23,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:23,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473280202] [2020-07-01 11:38:23,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:23,048 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:23,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:23,050 INFO L82 PathProgramCache]: Analyzing trace with hash 69772200, now seen corresponding path program 1 times [2020-07-01 11:38:23,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:23,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804259187] [2020-07-01 11:38:23,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:23,064 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:23,116 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:38:23,117 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:38:23,117 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:38:23,117 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:38:23,117 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:38:23,117 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:23,117 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:38:23,118 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:38:23,118 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:38:23,118 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:38:23,118 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:38:23,136 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 11:38:23,144 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 11:38:23,148 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 11:38:23,157 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 11:38:23,167 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 11:38:23,231 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:38:23,232 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:23,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:23,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:23,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:38:23,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:23,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:23,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:23,284 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:38:23,284 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:23,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:23,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:23,324 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:38:23,324 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~n~0=-7} Honda state: {ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~n~0=-7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:23,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:23,358 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:23,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:38:23,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:23,433 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:38:23,435 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:38:23,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:38:23,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:38:23,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:38:23,435 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:38:23,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:23,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:38:23,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:38:23,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:38:23,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:38:23,436 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:38:23,438 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 11:38:23,441 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 11:38:23,445 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 11:38:23,457 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 11:38:23,474 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 11:38:23,517 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:38:23,523 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:23,528 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 11:38:23,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:23,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:23,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:23,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:23,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:23,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:23,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:23,541 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:23,573 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 11:38:23,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:23,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:23,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:23,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:23,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:23,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:23,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:23,579 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 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 11:38:23,612 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 11:38:23,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:23,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:23,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:23,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:23,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:23,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:23,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:23,619 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:23,651 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 11:38:23,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:23,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:23,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:23,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:23,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:23,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:23,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:23,659 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:38:23,663 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:38:23,664 INFO L444 ModelExtractionUtils]: 0 out of 3 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:23,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:38:23,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:38:23,669 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:38:23,670 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 11:38:23,704 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:38:23,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:23,755 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:38:23,756 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:23,767 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:38:23,768 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:23,819 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 11:38:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:23,885 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:38:23,886 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:23,903 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 11:38:23,909 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 4 loop predicates [2020-07-01 11:38:23,910 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-07-01 11:38:24,016 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 14 states and 39 transitions. Complement of second has 6 states. [2020-07-01 11:38:24,017 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 11:38:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:38:24,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-07-01 11:38:24,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:38:24,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:24,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2020-07-01 11:38:24,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:24,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 8 letters. [2020-07-01 11:38:24,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:24,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 39 transitions. [2020-07-01 11:38:24,036 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 11:38:24,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 35 transitions. [2020-07-01 11:38:24,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 11:38:24,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 11:38:24,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 35 transitions. [2020-07-01 11:38:24,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:38:24,045 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 35 transitions. [2020-07-01 11:38:24,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 35 transitions. [2020-07-01 11:38:24,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2020-07-01 11:38:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-01 11:38:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 28 transitions. [2020-07-01 11:38:24,077 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 28 transitions. [2020-07-01 11:38:24,078 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 28 transitions. [2020-07-01 11:38:24,078 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:38:24,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 28 transitions. [2020-07-01 11:38:24,079 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 11:38:24,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:38:24,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:38:24,080 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:38:24,080 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:38:24,081 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRY [43] ULTIMATE.startENTRY-->L19-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5, ULTIMATE.start_main_#t~post4] 78#L19-3 [46] L19-3-->L16-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 74#L16-2 [2020-07-01 11:38:24,081 INFO L796 eck$LassoCheckResult]: Loop: 74#L16-2 [64] L16-2-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_7 1)) (<= 0 v_ULTIMATE.start_main_~y~0_8) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 74#L16-2 [2020-07-01 11:38:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:24,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2340, now seen corresponding path program 1 times [2020-07-01 11:38:24,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:24,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272146857] [2020-07-01 11:38:24,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,089 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:24,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:24,090 INFO L82 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 1 times [2020-07-01 11:38:24,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:24,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724272808] [2020-07-01 11:38:24,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,097 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:24,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:24,098 INFO L82 PathProgramCache]: Analyzing trace with hash 72604, now seen corresponding path program 1 times [2020-07-01 11:38:24,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:24,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838326353] [2020-07-01 11:38:24,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,108 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:24,130 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:38:24,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:38:24,130 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:38:24,130 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:38:24,130 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:38:24,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:38:24,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:38:24,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:38:24,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:38:24,132 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:38:24,133 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 11:38:24,138 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 11:38:24,147 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 11:38:24,180 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:38:24,180 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:24,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:24,189 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:38:24,189 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=-1} Honda state: {ULTIMATE.start_main_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:24,225 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:38:24,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:24,302 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:38:24,304 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:38:24,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:38:24,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:38:24,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:38:24,304 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:38:24,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:24,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:38:24,305 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:38:24,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:38:24,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:38:24,305 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:38:24,306 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 11:38:24,313 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 11:38:24,326 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 11:38:24,359 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:38:24,359 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:24,363 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 11:38:24,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:24,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:24,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:24,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:24,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:24,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:24,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:24,370 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 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 11:38:24,405 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 11:38:24,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:24,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:24,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:24,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:24,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:24,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:24,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:24,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:38:24,417 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:38:24,417 INFO L444 ModelExtractionUtils]: 0 out of 3 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 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 11:38:24,420 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:38:24,420 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:38:24,420 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:38:24,420 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 11:38:24,452 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:38:24,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:24,482 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:38:24,482 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:24,488 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:38:24,489 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:24,489 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 11:38:24,489 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:38:24,489 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 11:38:24,490 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 28 transitions. cyclomatic complexity: 21 Second operand 2 states. [2020-07-01 11:38:24,543 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 28 transitions. cyclomatic complexity: 21. Second operand 2 states. Result 21 states and 49 transitions. Complement of second has 6 states. [2020-07-01 11:38:24,544 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 11:38:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:38:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-01 11:38:24,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:38:24,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:24,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:38:24,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:24,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:38:24,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:24,548 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 49 transitions. [2020-07-01 11:38:24,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:38:24,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 14 states and 33 transitions. [2020-07-01 11:38:24,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:38:24,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 11:38:24,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 33 transitions. [2020-07-01 11:38:24,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:38:24,551 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-07-01 11:38:24,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 33 transitions. [2020-07-01 11:38:24,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-07-01 11:38:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-01 11:38:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 33 transitions. [2020-07-01 11:38:24,554 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-07-01 11:38:24,554 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2020-07-01 11:38:24,554 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:38:24,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 33 transitions. [2020-07-01 11:38:24,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:38:24,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:38:24,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:38:24,555 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:38:24,556 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:38:24,556 INFO L794 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRY [43] ULTIMATE.startENTRY-->L19-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5, ULTIMATE.start_main_#t~post4] 134#L19-3 [46] L19-3-->L16-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 135#L16-2 [63] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 146#L16-3 [52] L16-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_6 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5] 145#L19-2 [69] L19-2-->L19-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1) (< 0 |v_ULTIMATE.start_main_#t~nondet6_2|) (= (+ v_ULTIMATE.start_main_~y~0_2 1) v_ULTIMATE.start_main_~y~0_1)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7] 139#L19-2 [2020-07-01 11:38:24,556 INFO L796 eck$LassoCheckResult]: Loop: 139#L19-2 [68] L19-2-->L19-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1) (= (+ v_ULTIMATE.start_main_~y~0_2 1) v_ULTIMATE.start_main_~y~0_1) (> 0 |v_ULTIMATE.start_main_#t~nondet6_2|)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7] 139#L19-2 [2020-07-01 11:38:24,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:24,557 INFO L82 PathProgramCache]: Analyzing trace with hash 69773164, now seen corresponding path program 1 times [2020-07-01 11:38:24,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:24,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776061552] [2020-07-01 11:38:24,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,570 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:24,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:24,570 INFO L82 PathProgramCache]: Analyzing trace with hash 99, now seen corresponding path program 1 times [2020-07-01 11:38:24,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:24,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504065891] [2020-07-01 11:38:24,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,578 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:24,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:24,578 INFO L82 PathProgramCache]: Analyzing trace with hash -2131999144, now seen corresponding path program 1 times [2020-07-01 11:38:24,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:24,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572899062] [2020-07-01 11:38:24,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:24,593 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:24,610 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:38:24,611 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:38:24,611 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:38:24,611 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:38:24,611 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:38:24,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,611 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:38:24,611 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:38:24,611 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:38:24,611 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:38:24,612 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:38:24,613 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 11:38:24,617 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 11:38:24,620 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 11:38:24,653 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:38:24,653 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:24,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:24,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:38:24,663 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=-1} Honda state: {ULTIMATE.start_main_#t~nondet6=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:24,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:24,701 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:38:24,701 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:24,733 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:24,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:38:24,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:24,957 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:38:24,960 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:38:24,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:38:24,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:38:24,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:38:24,961 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:38:24,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:24,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:38:24,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:38:24,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:38:24,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:38:24,962 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:38:24,963 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 11:38:24,966 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 11:38:24,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:38:25,000 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:38:25,001 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:25,004 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 11:38:25,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:25,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:25,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:25,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:25,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:25,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:25,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:25,010 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:25,043 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 11:38:25,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:25,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:25,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:25,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:25,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:25,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:25,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:25,049 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 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 11:38:25,095 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 11:38:25,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:25,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:25,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:25,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:25,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:25,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:25,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:25,113 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:38:25,118 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:38:25,118 INFO L444 ModelExtractionUtils]: 0 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 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 11:38:25,126 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:38:25,126 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:38:25,127 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:38:25,127 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 11:38:25,159 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:38:25,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:25,182 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:38:25,183 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:25,190 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:38:25,190 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:25,190 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 11:38:25,191 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:38:25,191 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 11:38:25,191 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 33 transitions. cyclomatic complexity: 21 Second operand 2 states. [2020-07-01 11:38:25,229 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 33 transitions. cyclomatic complexity: 21. Second operand 2 states. Result 37 states and 85 transitions. Complement of second has 4 states. [2020-07-01 11:38:25,230 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 11:38:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:38:25,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-01 11:38:25,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-01 11:38:25,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:25,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 6 letters. Loop has 1 letters. [2020-07-01 11:38:25,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:25,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:38:25,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:25,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 85 transitions. [2020-07-01 11:38:25,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:38:25,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 27 states and 61 transitions. [2020-07-01 11:38:25,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:38:25,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 11:38:25,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 61 transitions. [2020-07-01 11:38:25,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:38:25,237 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 61 transitions. [2020-07-01 11:38:25,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 61 transitions. [2020-07-01 11:38:25,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2020-07-01 11:38:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 11:38:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 45 transitions. [2020-07-01 11:38:25,240 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 45 transitions. [2020-07-01 11:38:25,240 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 45 transitions. [2020-07-01 11:38:25,240 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:38:25,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 45 transitions. [2020-07-01 11:38:25,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:38:25,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:38:25,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:38:25,242 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:38:25,242 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:38:25,242 INFO L794 eck$LassoCheckResult]: Stem: 226#ULTIMATE.startENTRY [43] ULTIMATE.startENTRY-->L19-3: Formula: (and (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5, ULTIMATE.start_main_#t~post4] 222#L19-3 [46] L19-3-->L16-2: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 223#L16-2 [63] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 236#L16-3 [52] L16-3-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_6 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post5] 232#L19-2 [68] L19-2-->L19-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1) (= (+ v_ULTIMATE.start_main_~y~0_2 1) v_ULTIMATE.start_main_~y~0_1) (> 0 |v_ULTIMATE.start_main_#t~nondet6_2|)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7] 227#L19-2 [2020-07-01 11:38:25,242 INFO L796 eck$LassoCheckResult]: Loop: 227#L19-2 [68] L19-2-->L19-2: Formula: (and (<= v_ULTIMATE.start_main_~y~0_2 v_ULTIMATE.start_main_~n~0_1) (= (+ v_ULTIMATE.start_main_~y~0_2 1) v_ULTIMATE.start_main_~y~0_1) (> 0 |v_ULTIMATE.start_main_#t~nondet6_2|)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~post7] 227#L19-2 [2020-07-01 11:38:25,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:25,243 INFO L82 PathProgramCache]: Analyzing trace with hash 69773163, now seen corresponding path program 1 times [2020-07-01 11:38:25,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:25,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658828031] [2020-07-01 11:38:25,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:25,254 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:25,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:25,254 INFO L82 PathProgramCache]: Analyzing trace with hash 99, now seen corresponding path program 2 times [2020-07-01 11:38:25,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:25,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785974166] [2020-07-01 11:38:25,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:25,260 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:25,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:25,261 INFO L82 PathProgramCache]: Analyzing trace with hash -2131999175, now seen corresponding path program 2 times [2020-07-01 11:38:25,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:38:25,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488856517] [2020-07-01 11:38:25,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:38:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:38:25,276 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:38:25,290 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:38:25,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:38:25,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:38:25,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:38:25,291 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:38:25,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:25,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:38:25,291 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:38:25,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:38:25,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:38:25,292 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:38:25,293 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 11:38:25,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:38:25,304 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 11:38:25,329 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:38:25,329 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:38:25,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:38:25,332 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:38:25,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:38:25,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:38:25,558 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:38:25,560 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:38:25,560 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:38:25,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:38:25,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:38:25,561 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:38:25,561 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:25,561 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:38:25,561 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:38:25,561 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:38:25,561 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:38:25,561 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:38:25,563 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 11:38:25,569 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 11:38:25,572 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 11:38:25,601 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:38:25,601 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:25,604 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 11:38:25,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:38:25,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:38:25,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:38:25,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:38:25,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:38:25,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:38:25,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:38:25,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:38:25,613 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:38:25,614 INFO L444 ModelExtractionUtils]: 0 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:38:25,616 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:38:25,616 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:38:25,616 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:38:25,616 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 11:38:25,646 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:38:25,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:38:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:25,668 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:38:25,669 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:38:25,673 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:38:25,673 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:38:25,673 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 11:38:25,674 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:38:25,674 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 11:38:25,674 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 19 states and 45 transitions. cyclomatic complexity: 28 Second operand 2 states. [2020-07-01 11:38:25,711 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 19 states and 45 transitions. cyclomatic complexity: 28. Second operand 2 states. Result 48 states and 112 transitions. Complement of second has 4 states. [2020-07-01 11:38:25,712 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 11:38:25,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:38:25,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-01 11:38:25,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-01 11:38:25,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:25,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 6 letters. Loop has 1 letters. [2020-07-01 11:38:25,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:25,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:38:25,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:38:25,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 112 transitions. [2020-07-01 11:38:25,717 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:38:25,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 0 states and 0 transitions. [2020-07-01 11:38:25,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:38:25,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:38:25,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:38:25,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:38:25,717 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:38:25,718 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:38:25,718 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:38:25,718 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:38:25,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:38:25,718 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:38:25,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:38:25,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:38:25 BasicIcfg [2020-07-01 11:38:25,724 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:38:25,726 INFO L168 Benchmark]: Toolchain (without parser) took 3700.48 ms. Allocated memory was 649.6 MB in the beginning and 761.3 MB in the end (delta: 111.7 MB). Free memory was 561.5 MB in the beginning and 639.7 MB in the end (delta: -78.2 MB). Peak memory consumption was 33.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:38:25,727 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:38:25,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.69 ms. Allocated memory was 649.6 MB in the beginning and 695.7 MB in the end (delta: 46.1 MB). Free memory was 561.5 MB in the beginning and 659.1 MB in the end (delta: -97.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:38:25,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.24 ms. Allocated memory is still 695.7 MB. Free memory was 659.1 MB in the beginning and 656.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:38:25,728 INFO L168 Benchmark]: Boogie Preprocessor took 20.61 ms. Allocated memory is still 695.7 MB. Free memory is still 656.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:38:25,729 INFO L168 Benchmark]: RCFGBuilder took 249.78 ms. Allocated memory is still 695.7 MB. Free memory was 655.0 MB in the beginning and 640.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:38:25,730 INFO L168 Benchmark]: BlockEncodingV2 took 77.32 ms. Allocated memory is still 695.7 MB. Free memory was 640.7 MB in the beginning and 635.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:38:25,730 INFO L168 Benchmark]: TraceAbstraction took 157.57 ms. Allocated memory is still 695.7 MB. Free memory was 633.9 MB in the beginning and 624.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:38:25,731 INFO L168 Benchmark]: BuchiAutomizer took 2853.20 ms. Allocated memory was 695.7 MB in the beginning and 761.3 MB in the end (delta: 65.5 MB). Free memory was 624.5 MB in the beginning and 639.7 MB in the end (delta: -15.2 MB). Peak memory consumption was 50.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:38:25,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 14 edges - StatisticsResult: Encoded RCFG 5 locations, 11 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 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 300.69 ms. Allocated memory was 649.6 MB in the beginning and 695.7 MB in the end (delta: 46.1 MB). Free memory was 561.5 MB in the beginning and 659.1 MB in the end (delta: -97.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.24 ms. Allocated memory is still 695.7 MB. Free memory was 659.1 MB in the beginning and 656.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.61 ms. Allocated memory is still 695.7 MB. Free memory is still 656.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 249.78 ms. Allocated memory is still 695.7 MB. Free memory was 655.0 MB in the beginning and 640.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.32 ms. Allocated memory is still 695.7 MB. Free memory was 640.7 MB in the beginning and 635.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 157.57 ms. Allocated memory is still 695.7 MB. Free memory was 633.9 MB in the beginning and 624.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2853.20 ms. Allocated memory was 695.7 MB in the beginning and 761.3 MB in the end (delta: 65.5 MB). Free memory was 624.5 MB in the beginning and 639.7 MB in the end (delta: -15.2 MB). Peak memory consumption was 50.3 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: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * n + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * n + -2 * y + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 79 SDslu, 36 SDs, 0 SdLazy, 118 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp73 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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 11:38:18.759 ----------------------------------------------- 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_3ni_Qq/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:38:26.368 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check