/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:56:52,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:56:52,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:56:52,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:56:52,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:56:52,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:56:52,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:56:52,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:56:52,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:56:52,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:56:52,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:56:52,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:56:52,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:56:52,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:56:52,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:56:52,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:56:52,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:56:52,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:56:52,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:56:52,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:56:52,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:56:52,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:56:52,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:56:52,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:56:52,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:56:52,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:56:52,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:56:52,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:56:52,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:56:52,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:56:52,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:56:52,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:56:52,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:56:52,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:56:52,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:56:52,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:56:52,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:56:52,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:56:52,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:56:52,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:56:52,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:56:52,224 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:56:52,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:56:52,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:56:52,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:56:52,240 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:56:52,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:56:52,240 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:56:52,240 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:56:52,240 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:56:52,240 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:56:52,241 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:56:52,241 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:56:52,241 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:56:52,241 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:56:52,241 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:56:52,241 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:52,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:56:52,242 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:56:52,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:56:52,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:56:52,242 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:56:52,242 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:56:52,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:56:52,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:56:52,243 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:56:52,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:56:52,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:56:52,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:56:52,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:56:52,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:56:52,408 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:56:52,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:56:52,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:56:52,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:56:52,426 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:56:52,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:56:52,495 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_Fcfj4j/tmp/e0a81b6ed5b54ebe969fac55d0d3fd89/FLAG38fabfd62 [2020-07-01 11:56:52,853 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:56:52,854 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:56:52,861 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_Fcfj4j/tmp/e0a81b6ed5b54ebe969fac55d0d3fd89/FLAG38fabfd62 [2020-07-01 11:56:53,257 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_Fcfj4j/tmp/e0a81b6ed5b54ebe969fac55d0d3fd89 [2020-07-01 11:56:53,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:56:53,270 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:56:53,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:56:53,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:56:53,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:56:53,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@617a9abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:56:53,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:56:53,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:56:53,538 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:56:53,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:56:53,570 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:56:53,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53 WrapperNode [2020-07-01 11:56:53,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:56:53,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:56:53,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:56:53,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:56:53,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:56:53,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:56:53,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:56:53,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:56:53,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:56:53,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:56:53,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:56:53,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:56:53,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:56:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:56:53,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:56:53,878 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:56:53,878 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 11:56:53,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:56:53 BoogieIcfgContainer [2020-07-01 11:56:53,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:56:53,883 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:56:53,883 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:56:53,886 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:56:53,887 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,901 INFO L313 BlockEncoder]: Initial Icfg 11 locations, 17 edges [2020-07-01 11:56:53,903 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:56:53,903 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:56:53,904 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:56:53,904 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:56:53,906 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:56:53,907 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:56:53,907 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:56:53,922 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:56:53,937 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:56:53,942 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-07-01 11:56:53,943 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:56:53,955 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 11:56:53,957 INFO L70 RemoveSinkStates]: Removed 5 edges and 2 locations by removing sink states [2020-07-01 11:56:53,959 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:56:53,959 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:56:53,963 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:56:53,964 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:56:53,964 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:56:53,964 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:56:53,965 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:56:53,965 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:56:53,965 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-07-01 11:56:53,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:56:53 BasicIcfg [2020-07-01 11:56:53,966 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:56:53,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:56:53,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:56:53,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:56:53,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:56:53" (1/4) ... [2020-07-01 11:56:53,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22139610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (2/4) ... [2020-07-01 11:56:53,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22139610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:56:53" (3/4) ... [2020-07-01 11:56:53,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22139610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:56:53" (4/4) ... [2020-07-01 11:56:53,975 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:56:53,986 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:56:53,993 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:56:54,010 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:56:54,033 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:56:54,033 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:56:54,033 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:56:54,034 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:56:54,034 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:56:54,034 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:56:54,034 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:56:54,034 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:56:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 11:56:54,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:56:54,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 11:56:54,113 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:56:54,113 INFO L271 CegarLoopResult]: At program point L25-2(lines 25 26) the Hoare annotation is: true [2020-07-01 11:56:54,113 INFO L271 CegarLoopResult]: At program point L22-2(lines 22 28) the Hoare annotation is: true [2020-07-01 11:56:54,113 INFO L271 CegarLoopResult]: At program point L20-2(lines 20 30) the Hoare annotation is: true [2020-07-01 11:56:54,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:56:54 BasicIcfg [2020-07-01 11:56:54,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:56:54,123 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:56:54,123 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:56:54,127 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:56:54,128 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:54,128 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:56:53" (1/5) ... [2020-07-01 11:56:54,128 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b5a8f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:56:54, skipping insertion in model container [2020-07-01 11:56:54,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:54,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (2/5) ... [2020-07-01 11:56:54,129 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b5a8f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:56:54, skipping insertion in model container [2020-07-01 11:56:54,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:54,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:56:53" (3/5) ... [2020-07-01 11:56:54,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b5a8f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:56:54, skipping insertion in model container [2020-07-01 11:56:54,130 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:54,130 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:56:53" (4/5) ... [2020-07-01 11:56:54,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b5a8f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:56:54, skipping insertion in model container [2020-07-01 11:56:54,131 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:54,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:56:54" (5/5) ... [2020-07-01 11:56:54,132 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:56:54,161 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:56:54,161 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:56:54,161 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:56:54,161 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:56:54,161 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:56:54,161 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:56:54,162 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:56:54,162 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:56:54,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 11:56:54,182 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:56:54,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:56:54,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:56:54,188 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:56:54,188 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:56:54,188 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:56:54,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 11:56:54,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:56:54,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:56:54,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:56:54,189 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:56:54,189 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:56:54,194 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [78] ULTIMATE.startENTRY-->L20-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_9) (= 0 v_ULTIMATE.start_main_~i~0_14) (<= 0 v_ULTIMATE.start_main_~N~0_9)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_10, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_9, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_5|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res] 5#L20-2true [2020-07-01 11:56:54,195 INFO L796 eck$LassoCheckResult]: Loop: 5#L20-2true [61] L20-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_4 0) (< v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 6#L22-2true [75] L22-2-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_11 (+ v_ULTIMATE.start_main_~i~0_12 1)) (<= v_ULTIMATE.start_main_~m~0_8 v_ULTIMATE.start_main_~j~0_8)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post6] 5#L20-2true [2020-07-01 11:56:54,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:54,201 INFO L82 PathProgramCache]: Analyzing trace with hash 109, now seen corresponding path program 1 times [2020-07-01 11:56:54,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:54,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718297988] [2020-07-01 11:56:54,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:54,280 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:54,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:54,282 INFO L82 PathProgramCache]: Analyzing trace with hash 2927, now seen corresponding path program 1 times [2020-07-01 11:56:54,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:54,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313920047] [2020-07-01 11:56:54,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:54,297 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:54,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:54,299 INFO L82 PathProgramCache]: Analyzing trace with hash 106715, now seen corresponding path program 1 times [2020-07-01 11:56:54,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:54,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183275715] [2020-07-01 11:56:54,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:54,314 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:54,360 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:54,361 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:54,361 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:54,361 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:54,361 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:56:54,361 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:54,362 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:54,362 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:54,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:56:54,362 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:54,362 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:54,381 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 11:56:54,396 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 11:56:54,400 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 11:56:54,461 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:54,462 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:54,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:56:54,469 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:54,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:56:54,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:56:54,682 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:56:54,684 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:54,684 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:54,685 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:54,685 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:54,685 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:56:54,685 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:54,685 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:54,685 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:54,685 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:56:54,686 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:54,686 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:54,688 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 11:56:54,696 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 11:56:54,700 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 11:56:54,760 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:54,766 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:54,772 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 11:56:54,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:56:54,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:56:54,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:56:54,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:56:54,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:56:54,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:56:54,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:56:54,786 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:56:54,797 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:56:54,797 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:54,804 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:56:54,804 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:56:54,805 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:56:54,806 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 11:56:54,839 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:56:54,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:56:54,885 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:56:54,887 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:56:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:56:54,899 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:56:54,900 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:56:54,917 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 11:56:54,943 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:56:54,948 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:56:54,950 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-07-01 11:56:54,989 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 10 states and 16 transitions. Complement of second has 4 states. [2020-07-01 11:56:54,989 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 11:56:54,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:56:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-07-01 11:56:54,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:56:54,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:54,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:56:54,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:54,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:56:54,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:55,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 16 transitions. [2020-07-01 11:56:55,003 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:56:55,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 14 transitions. [2020-07-01 11:56:55,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 11:56:55,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 11:56:55,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 14 transitions. [2020-07-01 11:56:55,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:56:55,010 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-07-01 11:56:55,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 14 transitions. [2020-07-01 11:56:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-07-01 11:56:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 11:56:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2020-07-01 11:56:55,038 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 11:56:55,038 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 11:56:55,038 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:56:55,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2020-07-01 11:56:55,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:56:55,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:56:55,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:56:55,040 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:56:55,040 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:56:55,040 INFO L794 eck$LassoCheckResult]: Stem: 47#ULTIMATE.startENTRY [78] ULTIMATE.startENTRY-->L20-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_9) (= 0 v_ULTIMATE.start_main_~i~0_14) (<= 0 v_ULTIMATE.start_main_~N~0_9)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_10, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_9, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_5|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res] 48#L20-2 [61] L20-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_4 0) (< v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 54#L22-2 [66] L22-2-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~k~0_5 v_ULTIMATE.start_main_~i~0_10) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~j~0_6 (+ v_ULTIMATE.start_main_~j~0_7 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0] 49#L25-2 [2020-07-01 11:56:55,041 INFO L796 eck$LassoCheckResult]: Loop: 49#L25-2 [56] L25-2-->L25-2: Formula: (and (< v_ULTIMATE.start_main_~k~0_8 v_ULTIMATE.start_main_~N~0_7) (= v_ULTIMATE.start_main_~k~0_7 (+ v_ULTIMATE.start_main_~k~0_8 1))) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0] 49#L25-2 [2020-07-01 11:56:55,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:55,041 INFO L82 PathProgramCache]: Analyzing trace with hash 106706, now seen corresponding path program 1 times [2020-07-01 11:56:55,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:55,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108682600] [2020-07-01 11:56:55,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,054 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:55,055 INFO L82 PathProgramCache]: Analyzing trace with hash 87, now seen corresponding path program 1 times [2020-07-01 11:56:55,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:55,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263229660] [2020-07-01 11:56:55,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,061 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:55,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:55,061 INFO L82 PathProgramCache]: Analyzing trace with hash 3307942, now seen corresponding path program 1 times [2020-07-01 11:56:55,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:55,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632778446] [2020-07-01 11:56:55,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,075 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:55,087 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:55,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:55,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:55,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:55,087 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:56:55,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:55,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:55,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:55,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:56:55,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:55,088 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:55,089 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 11:56:55,113 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:55,114 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 11:56:55,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:56:55,124 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:55,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:56:55,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:56:55,329 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:56:55,331 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:55,343 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:55,343 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:55,343 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:55,343 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:56:55,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:55,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:55,344 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:55,344 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:56:55,344 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:55,344 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:55,345 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 11:56:55,367 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:55,367 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:55,370 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 11:56:55,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:56:55,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:56:55,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:56:55,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:56:55,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:56:55,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:56:55,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:56:55,378 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:56:55,388 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:56:55,388 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:55,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:56:55,398 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:56:55,398 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:56:55,399 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2020-07-01 11:56:55,429 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:56:55,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:56:55,453 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:56:55,454 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:56:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:56:55,458 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:56:55,458 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:56:55,458 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 11:56:55,458 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:56:55,459 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 11:56:55,459 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 2 states. [2020-07-01 11:56:55,473 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 2 states. Result 12 states and 20 transitions. Complement of second has 4 states. [2020-07-01 11:56:55,476 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 11:56:55,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:56:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-07-01 11:56:55,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:56:55,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:55,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-01 11:56:55,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:55,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:56:55,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:55,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 20 transitions. [2020-07-01 11:56:55,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:56:55,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 16 transitions. [2020-07-01 11:56:55,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 11:56:55,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 11:56:55,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 16 transitions. [2020-07-01 11:56:55,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:56:55,482 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 16 transitions. [2020-07-01 11:56:55,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 16 transitions. [2020-07-01 11:56:55,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-07-01 11:56:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-01 11:56:55,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2020-07-01 11:56:55,483 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-07-01 11:56:55,484 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-07-01 11:56:55,484 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:56:55,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2020-07-01 11:56:55,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:56:55,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:56:55,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:56:55,485 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:56:55,485 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:56:55,485 INFO L794 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRY [78] ULTIMATE.startENTRY-->L20-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_9) (= 0 v_ULTIMATE.start_main_~i~0_14) (<= 0 v_ULTIMATE.start_main_~N~0_9)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_10, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_9, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_5|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res] 99#L20-2 [61] L20-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_4 0) (< v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 106#L22-2 [66] L22-2-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~k~0_5 v_ULTIMATE.start_main_~i~0_10) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~j~0_6 (+ v_ULTIMATE.start_main_~j~0_7 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0] 100#L25-2 [2020-07-01 11:56:55,486 INFO L796 eck$LassoCheckResult]: Loop: 100#L25-2 [77] L25-2-->L22-2: Formula: (and (<= v_ULTIMATE.start_main_~N~0_8 v_ULTIMATE.start_main_~k~0_9) (= v_ULTIMATE.start_main_~k~0_9 v_ULTIMATE.start_main_~i~0_13)) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_8} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 102#L22-2 [66] L22-2-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~k~0_5 v_ULTIMATE.start_main_~i~0_10) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~j~0_6 (+ v_ULTIMATE.start_main_~j~0_7 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0] 100#L25-2 [2020-07-01 11:56:55,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:55,486 INFO L82 PathProgramCache]: Analyzing trace with hash 106706, now seen corresponding path program 2 times [2020-07-01 11:56:55,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:55,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746314912] [2020-07-01 11:56:55,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,498 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:55,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:55,499 INFO L82 PathProgramCache]: Analyzing trace with hash 3414, now seen corresponding path program 1 times [2020-07-01 11:56:55,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:55,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383993735] [2020-07-01 11:56:55,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,508 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:55,509 INFO L82 PathProgramCache]: Analyzing trace with hash 102546919, now seen corresponding path program 1 times [2020-07-01 11:56:55,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:55,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092303902] [2020-07-01 11:56:55,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:55,525 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:55,563 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:55,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:55,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:55,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:55,563 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:56:55,564 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:55,564 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:55,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:55,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:56:55,565 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:55,565 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:55,566 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 11:56:55,575 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 11:56:55,623 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:55,624 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:55,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:56:55,634 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:55,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:56:55,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:56:55,846 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:56:55,849 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:55,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:55,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:55,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:55,849 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:56:55,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:55,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:55,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:55,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:56:55,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:55,850 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:55,852 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 11:56:55,861 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 11:56:55,912 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:55,913 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:55,918 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 11:56:55,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:56:55,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:56:55,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:56:55,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:56:55,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:56:55,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:56:55,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:56:55,926 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:56:55,932 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:56:55,932 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:55,941 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:56:55,941 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:56:55,942 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:56:55,942 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2020-07-01 11:56:55,973 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:56:55,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:56:55,997 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:56:55,997 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:56:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:56:56,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:56:56,004 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:56:56,005 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 11:56:56,005 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:56:56,005 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 11:56:56,006 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 11:56:56,019 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 17 states and 29 transitions. Complement of second has 4 states. [2020-07-01 11:56:56,019 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 11:56:56,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:56:56,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2020-07-01 11:56:56,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:56:56,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:56,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:56:56,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:56,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:56:56,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:56:56,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 29 transitions. [2020-07-01 11:56:56,024 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-07-01 11:56:56,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 16 states and 28 transitions. [2020-07-01 11:56:56,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 11:56:56,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 11:56:56,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 28 transitions. [2020-07-01 11:56:56,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:56:56,025 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 28 transitions. [2020-07-01 11:56:56,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 28 transitions. [2020-07-01 11:56:56,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-07-01 11:56:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-01 11:56:56,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2020-07-01 11:56:56,028 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 11:56:56,028 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 11:56:56,028 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:56:56,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 24 transitions. [2020-07-01 11:56:56,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 11:56:56,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:56:56,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:56:56,030 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:56:56,030 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:56:56,030 INFO L794 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY [78] ULTIMATE.startENTRY-->L20-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_9) (= 0 v_ULTIMATE.start_main_~i~0_14) (<= 0 v_ULTIMATE.start_main_~N~0_9)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_10, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_9, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_5|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res] 159#L20-2 [61] L20-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_4 0) (< v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 169#L22-2 [66] L22-2-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~k~0_5 v_ULTIMATE.start_main_~i~0_10) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~j~0_6 (+ v_ULTIMATE.start_main_~j~0_7 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0] 160#L25-2 [2020-07-01 11:56:56,030 INFO L796 eck$LassoCheckResult]: Loop: 160#L25-2 [77] L25-2-->L22-2: Formula: (and (<= v_ULTIMATE.start_main_~N~0_8 v_ULTIMATE.start_main_~k~0_9) (= v_ULTIMATE.start_main_~k~0_9 v_ULTIMATE.start_main_~i~0_13)) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_8} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 164#L22-2 [75] L22-2-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_11 (+ v_ULTIMATE.start_main_~i~0_12 1)) (<= v_ULTIMATE.start_main_~m~0_8 v_ULTIMATE.start_main_~j~0_8)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post6] 165#L20-2 [61] L20-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_4 0) (< v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 166#L22-2 [66] L22-2-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~k~0_5 v_ULTIMATE.start_main_~i~0_10) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~j~0_6 (+ v_ULTIMATE.start_main_~j~0_7 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0] 160#L25-2 [2020-07-01 11:56:56,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:56,031 INFO L82 PathProgramCache]: Analyzing trace with hash 106706, now seen corresponding path program 3 times [2020-07-01 11:56:56,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:56,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241210621] [2020-07-01 11:56:56,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:56,043 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:56,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:56,043 INFO L82 PathProgramCache]: Analyzing trace with hash 3291460, now seen corresponding path program 1 times [2020-07-01 11:56:56,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:56,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926576344] [2020-07-01 11:56:56,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:56,058 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:56,059 INFO L82 PathProgramCache]: Analyzing trace with hash -236648043, now seen corresponding path program 1 times [2020-07-01 11:56:56,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:56,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48708543] [2020-07-01 11:56:56,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:56,081 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:56,127 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:56,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:56,127 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:56,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:56,128 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:56:56,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:56,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:56,128 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:56,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:56:56,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:56,129 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:56,130 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 11:56:56,141 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 11:56:56,148 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 11:56:56,211 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:56,212 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:56,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:56:56,215 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:56,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:56:56,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:08,299 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:57:08,304 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:57:08,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:57:08,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:57:08,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:57:08,304 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:57:08,304 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:08,304 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:57:08,305 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:57:08,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:57:08,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:57:08,305 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:57:08,306 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 11:57:08,309 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 11:57:08,321 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 11:57:08,375 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:57:08,375 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:08,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:57:08,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:08,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:08,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:08,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:08,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:08,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:08,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:08,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:08,433 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 11:57:08,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:08,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:08,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:08,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:08,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:08,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:08,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:08,443 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:57:08,450 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:57:08,450 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:08,458 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:57:08,458 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:57:08,458 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:57:08,458 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2020-07-01 11:57:08,489 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:57:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:57:08,518 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:57:08,519 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:57:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:57:08,544 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:57:08,545 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:57:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:57:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:08,593 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:57:08,593 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 11:57:08,593 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 11:57:08,593 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 13 Second operand 5 states. [2020-07-01 11:57:08,728 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 45 states and 92 transitions. Complement of second has 22 states. [2020-07-01 11:57:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 2 accepting loop states [2020-07-01 11:57:08,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:57:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 22 transitions. [2020-07-01 11:57:08,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:57:08,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:08,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 7 letters. Loop has 4 letters. [2020-07-01 11:57:08,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:08,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 3 letters. Loop has 8 letters. [2020-07-01 11:57:08,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:08,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 92 transitions. [2020-07-01 11:57:08,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:57:08,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 35 states and 74 transitions. [2020-07-01 11:57:08,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-01 11:57:08,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 11:57:08,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 74 transitions. [2020-07-01 11:57:08,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:57:08,739 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 74 transitions. [2020-07-01 11:57:08,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 74 transitions. [2020-07-01 11:57:08,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2020-07-01 11:57:08,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 11:57:08,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 47 transitions. [2020-07-01 11:57:08,743 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 47 transitions. [2020-07-01 11:57:08,743 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 47 transitions. [2020-07-01 11:57:08,743 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:57:08,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 47 transitions. [2020-07-01 11:57:08,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:57:08,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:57:08,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:57:08,745 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 11:57:08,745 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:57:08,745 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY [78] ULTIMATE.startENTRY-->L20-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_9) (= 0 v_ULTIMATE.start_main_~i~0_14) (<= 0 v_ULTIMATE.start_main_~N~0_9)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_10, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_9, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_5|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res] 291#L20-2 [61] L20-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_4 0) (< v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 305#L22-2 [66] L22-2-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~k~0_5 v_ULTIMATE.start_main_~i~0_10) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~j~0_6 (+ v_ULTIMATE.start_main_~j~0_7 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_5, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0] 292#L25-2 [77] L25-2-->L22-2: Formula: (and (<= v_ULTIMATE.start_main_~N~0_8 v_ULTIMATE.start_main_~k~0_9) (= v_ULTIMATE.start_main_~k~0_9 v_ULTIMATE.start_main_~i~0_13)) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_8} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 300#L22-2 [2020-07-01 11:57:08,746 INFO L796 eck$LassoCheckResult]: Loop: 300#L22-2 [75] L22-2-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_11 (+ v_ULTIMATE.start_main_~i~0_12 1)) (<= v_ULTIMATE.start_main_~m~0_8 v_ULTIMATE.start_main_~j~0_8)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post6] 301#L20-2 [61] L20-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_4 0) (< v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 300#L22-2 [2020-07-01 11:57:08,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:08,746 INFO L82 PathProgramCache]: Analyzing trace with hash 3307963, now seen corresponding path program 2 times [2020-07-01 11:57:08,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:08,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947221983] [2020-07-01 11:57:08,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:08,756 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:08,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:08,757 INFO L82 PathProgramCache]: Analyzing trace with hash 3347, now seen corresponding path program 2 times [2020-07-01 11:57:08,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:08,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551189883] [2020-07-01 11:57:08,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:08,763 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:08,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:08,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1116012467, now seen corresponding path program 2 times [2020-07-01 11:57:08,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:08,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228471438] [2020-07-01 11:57:08,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:08,776 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:08,792 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:57:08,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:57:08,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:57:08,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:57:08,793 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:57:08,793 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:08,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:57:08,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:57:08,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:57:08,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:57:08,793 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:57:08,794 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 11:57:08,796 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 11:57:08,801 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 11:57:08,833 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:57:08,834 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 11:57:08,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:08,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:08,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:57:08,841 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 11:57:08,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:08,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:08,878 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:57:08,878 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 11:57:08,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:08,912 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:08,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:57:08,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:09,413 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:57:09,416 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:57:09,416 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:57:09,416 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:57:09,416 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:57:09,416 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:57:09,417 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:09,417 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:57:09,417 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:57:09,417 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:57:09,417 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:57:09,417 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:57:09,418 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 11:57:09,421 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 11:57:09,427 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 11:57:09,466 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:57:09,466 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:09,469 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 11:57:09,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:09,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:09,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:09,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:09,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:09,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:09,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:09,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:57:09,506 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 11:57:09,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:09,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:09,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:09,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:09,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:09,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:09,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:09,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:57:09,543 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 11:57:09,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:09,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:09,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:09,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:09,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:09,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:09,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:09,549 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:57:09,555 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:57:09,555 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:09,558 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:57:09,558 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:57:09,558 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:57:09,559 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2020-07-01 11:57:09,588 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:57:09,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:57:09,607 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:57:09,607 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:57:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:57:09,611 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:57:09,612 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:57:09,619 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 11:57:09,620 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:57:09,620 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:57:09,620 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 20 states and 47 transitions. cyclomatic complexity: 32 Second operand 3 states. [2020-07-01 11:57:09,643 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 20 states and 47 transitions. cyclomatic complexity: 32. Second operand 3 states. Result 34 states and 75 transitions. Complement of second has 6 states. [2020-07-01 11:57:09,644 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 11:57:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:57:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-07-01 11:57:09,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:57:09,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:09,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 11:57:09,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:09,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:57:09,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:09,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 75 transitions. [2020-07-01 11:57:09,648 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:57:09,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2020-07-01 11:57:09,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:57:09,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:57:09,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:57:09,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:57:09,649 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:57:09,649 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:57:09,649 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:57:09,649 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 11:57:09,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:57:09,650 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:57:09,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:57:09,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:57:09 BasicIcfg [2020-07-01 11:57:09,656 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:57:09,658 INFO L168 Benchmark]: Toolchain (without parser) took 16387.36 ms. Allocated memory was 649.6 MB in the beginning and 750.8 MB in the end (delta: 101.2 MB). Free memory was 561.7 MB in the beginning and 587.5 MB in the end (delta: -25.7 MB). Peak memory consumption was 75.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:09,658 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:57:09,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.32 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 561.7 MB in the beginning and 653.8 MB in the end (delta: -92.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:09,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.75 ms. Allocated memory is still 690.5 MB. Free memory was 653.8 MB in the beginning and 651.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:09,660 INFO L168 Benchmark]: Boogie Preprocessor took 20.93 ms. Allocated memory is still 690.5 MB. Free memory was 651.1 MB in the beginning and 649.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:09,661 INFO L168 Benchmark]: RCFGBuilder took 253.04 ms. Allocated memory is still 690.5 MB. Free memory was 649.7 MB in the beginning and 634.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:09,661 INFO L168 Benchmark]: BlockEncodingV2 took 83.41 ms. Allocated memory is still 690.5 MB. Free memory was 634.1 MB in the beginning and 627.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:09,662 INFO L168 Benchmark]: TraceAbstraction took 155.52 ms. Allocated memory is still 690.5 MB. Free memory was 627.4 MB in the beginning and 617.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:09,663 INFO L168 Benchmark]: BuchiAutomizer took 15532.53 ms. Allocated memory was 690.5 MB in the beginning and 750.8 MB in the end (delta: 60.3 MB). Free memory was 617.9 MB in the beginning and 587.5 MB in the end (delta: 30.4 MB). Peak memory consumption was 90.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:09,667 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 17 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 300.32 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 561.7 MB in the beginning and 653.8 MB in the end (delta: -92.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.75 ms. Allocated memory is still 690.5 MB. Free memory was 653.8 MB in the beginning and 651.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.93 ms. Allocated memory is still 690.5 MB. Free memory was 651.1 MB in the beginning and 649.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 253.04 ms. Allocated memory is still 690.5 MB. Free memory was 649.7 MB in the beginning and 634.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 83.41 ms. Allocated memory is still 690.5 MB. Free memory was 634.1 MB in the beginning and 627.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 155.52 ms. Allocated memory is still 690.5 MB. Free memory was 627.4 MB in the beginning and 617.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 15532.53 ms. Allocated memory was 690.5 MB in the beginning and 750.8 MB in the end (delta: 60.3 MB). Free memory was 617.9 MB in the beginning and 587.5 MB in the end (delta: 30.4 MB). Peak memory consumption was 90.7 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: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -1 * k + N and consists of 3 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. One nondeterministic module has affine ranking function n + -1 * k and consists of 8 locations. One nondeterministic module has affine ranking function -1 * i + n and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 14.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 4. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 40 SDtfs, 47 SDslu, 7 SDs, 0 SdLazy, 65 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf92 smp100 dnf100 smp100 tf112 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 13.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:56:49.978 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_Fcfj4j/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:57:10.300 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check