/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 11:07:07,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:07:07,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:07:07,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:07:07,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:07:07,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:07:07,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:07:07,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:07:07,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:07:07,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:07:07,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:07:07,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:07:07,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:07:07,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:07:07,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:07:07,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:07:07,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:07:07,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:07:07,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:07:07,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:07:07,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:07:07,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:07:07,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:07:07,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:07:07,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:07:07,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:07:07,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:07:07,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:07:07,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:07:07,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:07:07,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:07:07,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:07:07,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:07:07,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:07:07,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:07:07,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:07:07,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:07:07,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:07:07,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:07:07,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:07:07,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:07:07,152 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:07:07,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:07:07,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:07:07,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:07:07,168 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:07:07,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:07:07,169 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:07:07,169 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:07:07,169 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:07:07,169 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:07:07,169 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:07:07,170 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:07:07,170 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:07:07,170 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:07:07,170 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:07:07,170 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:07,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:07:07,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:07:07,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:07:07,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:07:07,171 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:07:07,171 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:07:07,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:07:07,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:07:07,172 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:07:07,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:07:07,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:07:07,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:07:07,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:07:07,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:07:07,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:07:07,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:07:07,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:07:07,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:07:07,363 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:07:07,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:07:07,438 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_pD3VhW/tmp/022d68ff5828431481cae9b5eee6adb2/FLAG91015ac5b [2020-07-01 11:07:07,775 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:07:07,776 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:07:07,783 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_pD3VhW/tmp/022d68ff5828431481cae9b5eee6adb2/FLAG91015ac5b [2020-07-01 11:07:08,242 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_pD3VhW/tmp/022d68ff5828431481cae9b5eee6adb2 [2020-07-01 11:07:08,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:07:08,255 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:07:08,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:07:08,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:07:08,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:07:08,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54940bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08, skipping insertion in model container [2020-07-01 11:07:08,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:07:08,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:07:08,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:07:08,522 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:07:08,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:07:08,554 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:07:08,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08 WrapperNode [2020-07-01 11:07:08,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:07:08,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:07:08,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:07:08,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:07:08,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:07:08,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:07:08,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:07:08,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:07:08,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:07:08,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:07:08,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:07:08,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:07:08,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (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 11:07:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:07:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:07:08,883 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:07:08,884 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-07-01 11:07:08,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:08 BoogieIcfgContainer [2020-07-01 11:07:08,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:07:08,888 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:07:08,888 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:07:08,891 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:07:08,892 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,905 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 27 edges [2020-07-01 11:07:08,907 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:07:08,908 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:07:08,908 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:07:08,909 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:07:08,910 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:07:08,911 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:07:08,911 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:07:08,929 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:07:08,948 INFO L200 BlockEncoder]: SBE split 5 edges [2020-07-01 11:07:08,952 INFO L70 emoveInfeasibleEdges]: Removed 4 edges and 0 locations because of local infeasibility [2020-07-01 11:07:08,954 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:07:08,960 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:07:08,962 INFO L70 RemoveSinkStates]: Removed 7 edges and 2 locations by removing sink states [2020-07-01 11:07:08,964 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:07:08,964 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:07:08,967 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:07:08,968 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:07:08,968 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:07:08,968 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:07:08,969 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:07:08,969 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:07:08,970 INFO L313 BlockEncoder]: Encoded RCFG 11 locations, 19 edges [2020-07-01 11:07:08,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:08 BasicIcfg [2020-07-01 11:07:08,970 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:07:08,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:07:08,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:07:08,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:07:08,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:07:08" (1/4) ... [2020-07-01 11:07:08,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe0bf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:07:08, skipping insertion in model container [2020-07-01 11:07:08,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (2/4) ... [2020-07-01 11:07:08,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe0bf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:07:08, skipping insertion in model container [2020-07-01 11:07:08,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:08" (3/4) ... [2020-07-01 11:07:08,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe0bf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:08, skipping insertion in model container [2020-07-01 11:07:08,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:08" (4/4) ... [2020-07-01 11:07:08,980 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:07:08,991 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:07:08,998 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:07:09,016 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:07:09,040 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:07:09,040 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:07:09,040 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:07:09,040 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:07:09,040 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:07:09,040 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:07:09,041 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:07:09,041 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:07:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-07-01 11:07:09,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:07:09,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-07-01 11:07:09,069 INFO L268 CegarLoopResult]: For program point L30(lines 30 31) no Hoare annotation was computed. [2020-07-01 11:07:09,069 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:07:09,069 INFO L268 CegarLoopResult]: For program point L29(lines 29 36) no Hoare annotation was computed. [2020-07-01 11:07:09,069 INFO L268 CegarLoopResult]: For program point L30-1(lines 30 31) no Hoare annotation was computed. [2020-07-01 11:07:09,069 INFO L268 CegarLoopResult]: For program point L29-2(lines 13 38) no Hoare annotation was computed. [2020-07-01 11:07:09,069 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 36) no Hoare annotation was computed. [2020-07-01 11:07:09,070 INFO L268 CegarLoopResult]: For program point L29-5(lines 13 38) no Hoare annotation was computed. [2020-07-01 11:07:09,070 INFO L268 CegarLoopResult]: For program point L23-1(lines 22 25) no Hoare annotation was computed. [2020-07-01 11:07:09,070 INFO L268 CegarLoopResult]: For program point L23-3(lines 22 25) no Hoare annotation was computed. [2020-07-01 11:07:09,070 INFO L268 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-07-01 11:07:09,070 INFO L268 CegarLoopResult]: For program point L41(lines 41 45) no Hoare annotation was computed. [2020-07-01 11:07:09,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:09 BasicIcfg [2020-07-01 11:07:09,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:07:09,075 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:07:09,075 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:07:09,079 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:07:09,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:07:08" (1/5) ... [2020-07-01 11:07:09,080 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3748605a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (2/5) ... [2020-07-01 11:07:09,081 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3748605a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:08" (3/5) ... [2020-07-01 11:07:09,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3748605a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:08" (4/5) ... [2020-07-01 11:07:09,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3748605a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:09" (5/5) ... [2020-07-01 11:07:09,084 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:07:09,115 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:07:09,115 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:07:09,115 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:07:09,115 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:07:09,116 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:07:09,116 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:07:09,116 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:07:09,116 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:07:09,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 11:07:09,138 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-07-01 11:07:09,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:09,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:09,144 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:07:09,144 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:07:09,144 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:07:09,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 11:07:09,145 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-07-01 11:07:09,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:09,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:09,146 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:07:09,146 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:07:09,151 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 12#L41true [129] L41-->L23-3: Formula: (and (= |v_ULTIMATE.start_f_#in~d_3| v_ULTIMATE.start_f_~d_9) (<= v_ULTIMATE.start_f_~k~0_13 1073741823) (= 1 v_ULTIMATE.start_f_~z~0_15) (= 2 |v_ULTIMATE.start_f_#in~d_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet5_7|)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_7|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_13, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_11|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_3|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_7|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_5|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_13, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_5|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_5|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_15, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_15, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_9} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~d] 13#L23-3true [2020-07-01 11:07:09,152 INFO L796 eck$LassoCheckResult]: Loop: 13#L23-3true [99] L23-3-->L23-3: Formula: (and (= v_ULTIMATE.start_f_~z~0_13 (* v_ULTIMATE.start_f_~z~0_14 2)) (< v_ULTIMATE.start_f_~z~0_14 v_ULTIMATE.start_f_~k~0_12)) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_12, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_14} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_12, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_13} AuxVars[] AssignedVars[ULTIMATE.start_f_~z~0] 13#L23-3true [2020-07-01 11:07:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:09,158 INFO L82 PathProgramCache]: Analyzing trace with hash 4190, now seen corresponding path program 1 times [2020-07-01 11:07:09,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:09,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314537116] [2020-07-01 11:07:09,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,283 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:09,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:09,284 INFO L82 PathProgramCache]: Analyzing trace with hash 130, now seen corresponding path program 1 times [2020-07-01 11:07:09,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:09,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774763485] [2020-07-01 11:07:09,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,293 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:09,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:09,295 INFO L82 PathProgramCache]: Analyzing trace with hash 129989, now seen corresponding path program 1 times [2020-07-01 11:07:09,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:09,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684026908] [2020-07-01 11:07:09,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,310 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:09,394 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:09,395 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:09,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:09,395 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:09,396 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:09,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,396 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:09,396 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:09,396 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:07:09,396 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:09,397 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:09,415 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 11:07:09,422 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 11:07:09,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:09,429 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 11:07:09,435 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 11:07:09,440 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 11:07:09,448 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 11:07:09,470 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 11:07:09,487 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 11:07:09,492 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 11:07:09,495 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 11:07:09,622 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:09,622 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 11:07:09,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,640 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,641 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,683 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,683 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,722 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,760 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,760 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:07:09,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,798 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,798 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:07:09,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,837 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,837 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,874 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:09,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:22,036 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:07:22,049 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:22,049 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:22,049 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:22,049 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:22,049 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:22,050 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:22,050 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:22,050 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:22,050 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:07:22,050 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:22,050 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:22,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:22,056 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 11:07:22,071 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 11:07:22,073 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 11:07:22,075 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 11:07:22,078 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 11:07:22,080 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 11:07:22,082 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 11:07:22,088 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 11:07:22,091 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 11:07:22,093 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 11:07:22,180 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:22,186 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:22,192 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 11:07:22,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:22,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:22,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:22,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:22,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:22,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:22,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:22,202 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:22,240 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 11:07:22,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:22,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:22,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:22,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:22,252 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:22,252 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:22,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:22,291 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:07:22,291 INFO L444 ModelExtractionUtils]: 4 out of 10 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 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 11:07:22,300 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:22,316 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:22,316 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:22,317 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2020-07-01 11:07:22,356 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:22,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:22,418 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 11:07:22,419 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:22,431 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:22,432 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:22,432 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 11:07:22,456 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:07:22,462 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 11:07:22,463 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states. Second operand 2 states. [2020-07-01 11:07:22,547 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states.. Second operand 2 states. Result 19 states and 33 transitions. Complement of second has 4 states. [2020-07-01 11:07:22,547 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 11:07:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:07:22,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-07-01 11:07:22,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:07:22,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:22,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:07:22,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:22,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:07:22,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:22,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 33 transitions. [2020-07-01 11:07:22,564 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2020-07-01 11:07:22,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 27 transitions. [2020-07-01 11:07:22,570 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-07-01 11:07:22,570 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-07-01 11:07:22,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 27 transitions. [2020-07-01 11:07:22,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:07:22,572 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 27 transitions. [2020-07-01 11:07:22,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 27 transitions. [2020-07-01 11:07:22,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2020-07-01 11:07:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 11:07:22,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 21 transitions. [2020-07-01 11:07:22,603 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 21 transitions. [2020-07-01 11:07:22,603 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 21 transitions. [2020-07-01 11:07:22,603 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:07:22,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 21 transitions. [2020-07-01 11:07:22,604 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-07-01 11:07:22,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:22,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:22,607 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:07:22,607 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:07:22,607 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 75#L41 [129] L41-->L23-3: Formula: (and (= |v_ULTIMATE.start_f_#in~d_3| v_ULTIMATE.start_f_~d_9) (<= v_ULTIMATE.start_f_~k~0_13 1073741823) (= 1 v_ULTIMATE.start_f_~z~0_15) (= 2 |v_ULTIMATE.start_f_#in~d_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet5_7|)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_7|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_13, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_11|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_3|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_7|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_5|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_13, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_5|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_5|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_15, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_15, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_9} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~d] 81#L23-3 [113] L23-3-->L29-5: Formula: (>= v_ULTIMATE.start_f_~z~0_12 v_ULTIMATE.start_f_~k~0_11) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_11, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_12} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_11, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_12} AuxVars[] AssignedVars[] 72#L29-5 [2020-07-01 11:07:22,607 INFO L796 eck$LassoCheckResult]: Loop: 72#L29-5 [107] L29-5-->L29-3: Formula: (and (< 0 v_ULTIMATE.start_f_~y~0_2) (< 0 v_ULTIMATE.start_f_~x~0_2)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} AuxVars[] AssignedVars[] 71#L29-3 [83] L29-3-->L29-5: Formula: (and (= 0 |v_ULTIMATE.start_f_#t~nondet3_5|) (= v_ULTIMATE.start_f_~y~0_6 (+ (* v_ULTIMATE.start_f_~d_4 (- 1)) v_ULTIMATE.start_f_~y~0_7))) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_5|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_7, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_4} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_4|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_6, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_4} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_~y~0] 72#L29-5 [2020-07-01 11:07:22,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:22,608 INFO L82 PathProgramCache]: Analyzing trace with hash 130003, now seen corresponding path program 1 times [2020-07-01 11:07:22,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:22,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374104836] [2020-07-01 11:07:22,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:22,619 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:22,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:22,620 INFO L82 PathProgramCache]: Analyzing trace with hash 4361, now seen corresponding path program 1 times [2020-07-01 11:07:22,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:22,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987044956] [2020-07-01 11:07:22,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:22,628 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:22,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:22,628 INFO L82 PathProgramCache]: Analyzing trace with hash 124936283, now seen corresponding path program 1 times [2020-07-01 11:07:22,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:22,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570945121] [2020-07-01 11:07:22,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:22,642 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:22,698 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:22,698 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:22,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:22,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:22,698 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:22,698 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:22,699 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:22,699 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:22,699 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:07:22,699 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:22,699 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:22,701 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 11:07:22,706 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 11:07:22,711 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 11:07:22,715 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 11:07:22,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:22,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:22,732 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 11:07:22,743 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 11:07:22,747 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 11:07:22,750 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 11:07:22,837 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:22,838 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:22,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:22,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:22,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:22,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:07:22,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:22,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:22,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:22,884 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:07:22,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:22,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:22,921 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:22,921 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:22,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:22,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:22,959 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:22,960 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=1, ULTIMATE.start_f_~k~0=-14} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:22,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:22,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:22,998 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:22,998 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:23,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:23,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:23,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:23,036 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:07:23,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:23,069 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:07:23,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:23,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:23,205 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:23,207 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:23,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:23,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:23,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:23,208 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:23,208 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:23,208 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:23,208 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:23,208 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:07:23,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:23,209 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:23,211 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 11:07:23,214 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 11:07:23,221 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 11:07:23,224 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 11:07:23,231 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 11:07:23,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:23,248 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 11:07:23,252 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 11:07:23,255 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 11:07:23,258 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 11:07:23,339 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:23,339 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:23,344 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 11:07:23,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:23,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:23,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:23,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:23,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:23,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:23,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:23,349 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:23,382 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 11:07:23,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:23,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:23,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:23,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:23,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:23,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:23,392 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 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 11:07:23,426 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 11:07:23,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:23,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:23,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:23,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:23,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:23,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:23,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:23,431 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 11:07:23,464 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 11:07:23,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:23,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:23,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:23,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:23,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:23,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:23,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:23,469 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 11:07:23,501 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 11:07:23,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:23,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:23,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:23,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:23,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:23,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:23,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:23,506 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 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 11:07:23,538 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 11:07:23,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:23,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:23,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:23,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:23,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:23,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:23,552 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:23,564 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-01 11:07:23,564 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-01 11:07:23,568 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:23,572 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:23,572 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:23,572 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-07-01 11:07:23,605 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:23,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:23,648 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:23,649 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:23,670 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:23,670 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:23,686 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 11:07:23,711 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:07:23,712 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-07-01 11:07:23,712 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 21 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-07-01 11:07:23,829 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 21 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 21 states and 37 transitions. Complement of second has 9 states. [2020-07-01 11:07:23,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:07:23,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:07:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2020-07-01 11:07:23,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:07:23,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:23,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:07:23,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:23,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:07:23,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:23,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 37 transitions. [2020-07-01 11:07:23,836 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-07-01 11:07:23,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 29 transitions. [2020-07-01 11:07:23,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-07-01 11:07:23,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-07-01 11:07:23,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 29 transitions. [2020-07-01 11:07:23,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:23,837 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 29 transitions. [2020-07-01 11:07:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 29 transitions. [2020-07-01 11:07:23,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-07-01 11:07:23,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-01 11:07:23,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 28 transitions. [2020-07-01 11:07:23,839 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 28 transitions. [2020-07-01 11:07:23,840 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 28 transitions. [2020-07-01 11:07:23,840 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:07:23,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 28 transitions. [2020-07-01 11:07:23,841 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-07-01 11:07:23,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:23,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:23,841 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:07:23,841 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:07:23,842 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 164#L41 [119] L41-->L18: Formula: (and (= |v_ULTIMATE.start_f_#in~d_1| 1) (> 0 |v_ULTIMATE.start_main_#t~nondet5_3|) (= v_ULTIMATE.start_f_~d_1 |v_ULTIMATE.start_f_#in~d_1|) (= v_ULTIMATE.start_f_~z~0_1 1)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_1, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_1|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_1|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_3, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_1|, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_1|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_1|, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_1, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_1, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~d, ULTIMATE.start_f_~z~0] 168#L18 [110] L18-->L23-1: Formula: (>= 1073741823 v_ULTIMATE.start_f_~k~0_4) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} AuxVars[] AssignedVars[] 167#L23-1 [2020-07-01 11:07:23,842 INFO L796 eck$LassoCheckResult]: Loop: 167#L23-1 [103] L23-1-->L23-1: Formula: (and (= v_ULTIMATE.start_f_~z~0_6 (* v_ULTIMATE.start_f_~z~0_7 2)) (< v_ULTIMATE.start_f_~z~0_7 v_ULTIMATE.start_f_~k~0_6)) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_6, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_7} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_6, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_f_~z~0] 167#L23-1 [2020-07-01 11:07:23,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:23,842 INFO L82 PathProgramCache]: Analyzing trace with hash 129690, now seen corresponding path program 1 times [2020-07-01 11:07:23,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:23,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574501396] [2020-07-01 11:07:23,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:23,851 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:23,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:23,852 INFO L82 PathProgramCache]: Analyzing trace with hash 134, now seen corresponding path program 1 times [2020-07-01 11:07:23,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:23,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003288368] [2020-07-01 11:07:23,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:23,857 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:23,858 INFO L82 PathProgramCache]: Analyzing trace with hash 4020493, now seen corresponding path program 1 times [2020-07-01 11:07:23,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:23,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576874272] [2020-07-01 11:07:23,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:23,867 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:23,903 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:23,903 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:23,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:23,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:23,904 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:23,904 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:23,904 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:23,904 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:23,904 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:07:23,904 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:23,904 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:23,906 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 11:07:23,913 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 11:07:23,921 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 11:07:23,946 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 11:07:23,949 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 11:07:23,952 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 11:07:23,955 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 11:07:23,957 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 11:07:23,965 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 11:07:23,969 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 11:07:23,974 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 11:07:24,061 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:24,062 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:24,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:24,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:24,069 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:24,069 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:24,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:24,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:24,108 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:24,108 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~d=0, ULTIMATE.start_f_#in~d=0} Honda state: {ULTIMATE.start_f_~d=1, ULTIMATE.start_f_#in~d=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:24,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:24,143 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:24,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:24,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:36,271 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:07:36,283 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:36,283 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:36,283 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:36,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:36,284 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:36,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:36,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:36,284 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:36,284 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:07:36,284 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:36,284 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:36,286 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 11:07:36,289 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 11:07:36,294 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 11:07:36,303 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 11:07:36,306 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 11:07:36,307 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 11:07:36,310 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 11:07:36,312 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 11:07:36,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:36,315 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 11:07:36,317 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 11:07:36,376 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:36,377 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:36,379 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 11:07:36,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:36,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:36,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:36,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:36,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:36,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:36,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:36,384 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:36,415 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 11:07:36,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:36,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:36,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:36,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:36,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:36,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:36,425 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:36,456 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 11:07:36,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:36,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:36,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:36,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:36,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:36,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:36,472 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:36,480 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 11:07:36,480 INFO L444 ModelExtractionUtils]: 4 out of 10 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 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:36,484 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:36,487 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:36,487 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:36,487 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~k~0, ULTIMATE.start_f_~z~0) = 1*ULTIMATE.start_f_~k~0 - 1*ULTIMATE.start_f_~z~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2020-07-01 11:07:36,518 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:36,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:36,545 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 11:07:36,545 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:36,554 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:36,554 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:36,554 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 11:07:36,563 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:07:36,563 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-07-01 11:07:36,564 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 28 transitions. cyclomatic complexity: 17 Second operand 3 states. [2020-07-01 11:07:36,623 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 28 transitions. cyclomatic complexity: 17. Second operand 3 states. Result 25 states and 43 transitions. Complement of second has 5 states. [2020-07-01 11:07:36,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:07:36,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:07:36,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-01 11:07:36,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:07:36,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:36,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-01 11:07:36,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:36,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:07:36,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:36,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 43 transitions. [2020-07-01 11:07:36,629 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-07-01 11:07:36,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 22 states and 37 transitions. [2020-07-01 11:07:36,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-07-01 11:07:36,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-07-01 11:07:36,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 37 transitions. [2020-07-01 11:07:36,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:36,630 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 37 transitions. [2020-07-01 11:07:36,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 37 transitions. [2020-07-01 11:07:36,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2020-07-01 11:07:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 11:07:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 30 transitions. [2020-07-01 11:07:36,632 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 30 transitions. [2020-07-01 11:07:36,632 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 30 transitions. [2020-07-01 11:07:36,633 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:07:36,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 30 transitions. [2020-07-01 11:07:36,633 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 11:07:36,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:36,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:36,634 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 11:07:36,634 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:07:36,635 INFO L794 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 248#L41 [119] L41-->L18: Formula: (and (= |v_ULTIMATE.start_f_#in~d_1| 1) (> 0 |v_ULTIMATE.start_main_#t~nondet5_3|) (= v_ULTIMATE.start_f_~d_1 |v_ULTIMATE.start_f_#in~d_1|) (= v_ULTIMATE.start_f_~z~0_1 1)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_1, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_1|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_1|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_3, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_1|, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_1|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_1|, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_1, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_1, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~d, ULTIMATE.start_f_~z~0] 253#L18 [110] L18-->L23-1: Formula: (>= 1073741823 v_ULTIMATE.start_f_~k~0_4) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} AuxVars[] AssignedVars[] 251#L23-1 [112] L23-1-->L29-2: Formula: (>= v_ULTIMATE.start_f_~z~0_5 v_ULTIMATE.start_f_~k~0_5) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_5} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_5} AuxVars[] AssignedVars[] 249#L29-2 [2020-07-01 11:07:36,635 INFO L796 eck$LassoCheckResult]: Loop: 249#L29-2 [86] L29-2-->L29: Formula: (and (< 0 v_ULTIMATE.start_f_~x~0_8) (< 0 v_ULTIMATE.start_f_~y~0_9)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} AuxVars[] AssignedVars[] 250#L29 [92] L29-->L29-2: Formula: (and (= 0 |v_ULTIMATE.start_f_#t~nondet3_9|) (= v_ULTIMATE.start_f_~y~0_11 (+ (* v_ULTIMATE.start_f_~d_6 (- 1)) v_ULTIMATE.start_f_~y~0_12))) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_9|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_12, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_6} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_8|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_11, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_6} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_~y~0] 249#L29-2 [2020-07-01 11:07:36,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:36,635 INFO L82 PathProgramCache]: Analyzing trace with hash 4020502, now seen corresponding path program 1 times [2020-07-01 11:07:36,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:36,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114429537] [2020-07-01 11:07:36,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:36,643 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:36,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:36,644 INFO L82 PathProgramCache]: Analyzing trace with hash 3719, now seen corresponding path program 1 times [2020-07-01 11:07:36,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:36,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659825294] [2020-07-01 11:07:36,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:36,650 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:36,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:36,650 INFO L82 PathProgramCache]: Analyzing trace with hash -431262116, now seen corresponding path program 1 times [2020-07-01 11:07:36,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:36,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275997550] [2020-07-01 11:07:36,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:36,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:36,705 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:36,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:36,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:36,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:36,705 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:36,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:36,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:36,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:36,706 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso [2020-07-01 11:07:36,706 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:36,706 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:36,707 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 11:07:36,710 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 11:07:36,715 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 11:07:36,716 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 11:07:36,725 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 11:07:36,727 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 11:07:36,729 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 11:07:36,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:36,733 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 11:07:36,735 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 11:07:36,802 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:36,802 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:36,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:36,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:36,808 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:36,808 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:36,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:36,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:36,844 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:36,844 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=1, ULTIMATE.start_f_~k~0=-14} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:36,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:36,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:36,879 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:36,880 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:36,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:36,911 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:36,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:36,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:37,045 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:37,046 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:37,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:37,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:37,047 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:37,047 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:37,047 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:37,047 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:37,047 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:37,047 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso [2020-07-01 11:07:37,047 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:37,048 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:37,049 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 11:07:37,052 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 11:07:37,060 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 11:07:37,065 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 11:07:37,067 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 11:07:37,070 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 11:07:37,071 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 11:07:37,073 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 11:07:37,075 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 11:07:37,077 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 11:07:37,137 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:37,137 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:37,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:07:37,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:37,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:37,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:37,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:37,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:37,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:37,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:37,146 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 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:37,177 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 11:07:37,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:37,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:37,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:37,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:37,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:37,183 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:37,190 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:37,204 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-07-01 11:07:37,204 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:37,218 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:37,223 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:37,223 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:37,223 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-07-01 11:07:37,255 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:37,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:37,282 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:37,282 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:37,293 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:37,294 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:37,305 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 11:07:37,328 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:07:37,329 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-07-01 11:07:37,329 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 30 transitions. cyclomatic complexity: 18 Second operand 4 states. [2020-07-01 11:07:37,414 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 30 transitions. cyclomatic complexity: 18. Second operand 4 states. Result 26 states and 46 transitions. Complement of second has 9 states. [2020-07-01 11:07:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:07:37,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:07:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2020-07-01 11:07:37,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:07:37,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:37,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 11:07:37,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:37,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:07:37,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:37,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 46 transitions. [2020-07-01 11:07:37,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 11:07:37,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 22 states and 38 transitions. [2020-07-01 11:07:37,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-07-01 11:07:37,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-07-01 11:07:37,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 38 transitions. [2020-07-01 11:07:37,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:37,421 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 38 transitions. [2020-07-01 11:07:37,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 38 transitions. [2020-07-01 11:07:37,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-07-01 11:07:37,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-01 11:07:37,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 37 transitions. [2020-07-01 11:07:37,424 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 37 transitions. [2020-07-01 11:07:37,425 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 37 transitions. [2020-07-01 11:07:37,425 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:07:37,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 37 transitions. [2020-07-01 11:07:37,426 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 11:07:37,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:37,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:37,426 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:07:37,426 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:37,427 INFO L794 eck$LassoCheckResult]: Stem: 348#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 349#L41 [129] L41-->L23-3: Formula: (and (= |v_ULTIMATE.start_f_#in~d_3| v_ULTIMATE.start_f_~d_9) (<= v_ULTIMATE.start_f_~k~0_13 1073741823) (= 1 v_ULTIMATE.start_f_~z~0_15) (= 2 |v_ULTIMATE.start_f_#in~d_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet5_7|)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_7|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_13, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_11|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_3|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_7|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_5|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_13, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_5|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_5|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_15, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_15, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_9} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~d] 362#L23-3 [113] L23-3-->L29-5: Formula: (>= v_ULTIMATE.start_f_~z~0_12 v_ULTIMATE.start_f_~k~0_11) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_11, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_12} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_11, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_12} AuxVars[] AssignedVars[] 363#L29-5 [107] L29-5-->L29-3: Formula: (and (< 0 v_ULTIMATE.start_f_~y~0_2) (< 0 v_ULTIMATE.start_f_~x~0_2)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} AuxVars[] AssignedVars[] 344#L29-3 [125] L29-3-->L30-1: Formula: (> 0 |v_ULTIMATE.start_f_#t~nondet3_3|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_3|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 345#L30-1 [2020-07-01 11:07:37,427 INFO L796 eck$LassoCheckResult]: Loop: 345#L30-1 [93] L30-1-->L29-5: Formula: (and (= v_ULTIMATE.start_f_~z~0_3 (+ v_ULTIMATE.start_f_~z~0_4 (- 1))) (= v_ULTIMATE.start_f_~x~0_5 (+ v_ULTIMATE.start_f_~x~0_6 (* v_ULTIMATE.start_f_~d_3 (- 1)))) (= v_ULTIMATE.start_f_~y~0_5 |v_ULTIMATE.start_f_#t~nondet4_3|)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_6, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_3|, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_4, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_3} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_5, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_2|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_3, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_3} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0] 360#L29-5 [107] L29-5-->L29-3: Formula: (and (< 0 v_ULTIMATE.start_f_~y~0_2) (< 0 v_ULTIMATE.start_f_~x~0_2)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} AuxVars[] AssignedVars[] 361#L29-3 [124] L29-3-->L30-1: Formula: (< 0 |v_ULTIMATE.start_f_#t~nondet3_3|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_3|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 345#L30-1 [2020-07-01 11:07:37,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:37,427 INFO L82 PathProgramCache]: Analyzing trace with hash 124936325, now seen corresponding path program 1 times [2020-07-01 11:07:37,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:37,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829583101] [2020-07-01 11:07:37,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:37,437 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:37,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:37,438 INFO L82 PathProgramCache]: Analyzing trace with hash 122605, now seen corresponding path program 1 times [2020-07-01 11:07:37,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:37,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777718624] [2020-07-01 11:07:37,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:37,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:37,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:37,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1758494743, now seen corresponding path program 1 times [2020-07-01 11:07:37,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:37,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873637448] [2020-07-01 11:07:37,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:37,459 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:37,498 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:37,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:37,499 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:37,499 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:37,499 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:37,499 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:37,499 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:37,499 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:07:37,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:37,499 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:37,501 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 11:07:37,507 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 11:07:37,511 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 11:07:37,516 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 11:07:37,556 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:37,556 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:37,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:37,564 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:37,564 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:37,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:37,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:37,600 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=1} Honda state: {ULTIMATE.start_f_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:37,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:37,636 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:37,636 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=2, ULTIMATE.start_f_~y~0=2} Honda state: {ULTIMATE.start_f_#t~nondet4=2, ULTIMATE.start_f_~y~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:37,667 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:37,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:37,717 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:37,718 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~z~0=-2}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [1, 2, 1] Nus: [0, 1] [2020-07-01 11:07:37,781 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:37,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:37,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:37,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:37,781 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:37,781 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,781 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:37,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:37,782 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Lasso [2020-07-01 11:07:37,782 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:37,782 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:37,783 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 11:07:37,790 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 11:07:37,793 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 11:07:37,803 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 11:07:37,809 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 11:07:37,811 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 11:07:37,813 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 11:07:37,814 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 11:07:37,819 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 11:07:37,890 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:37,890 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:37,892 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:37,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:37,945 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:37,946 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=1, ULTIMATE.start_f_~k~0=-1} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=-1}, {ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=-1}, {ULTIMATE.start_f_~z~0=-5, ULTIMATE.start_f_~k~0=2}] Lambdas: [0, 1, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:37,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:37,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:37,981 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:37,981 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:38,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:38,012 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:38,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:38,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:38,303 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:38,305 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:38,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:38,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:38,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:38,305 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:38,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:38,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:38,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:38,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Lasso [2020-07-01 11:07:38,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:38,306 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:38,307 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 11:07:38,310 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 11:07:38,316 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 11:07:38,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:38,328 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 11:07:38,330 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 11:07:38,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:38,339 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 11:07:38,341 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 11:07:38,415 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:38,415 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:38,418 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 11:07:38,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:38,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:38,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:38,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:38,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:38,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:38,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:38,422 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 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:38,453 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 11:07:38,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:38,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:38,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:38,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:38,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:38,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:38,464 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 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:38,496 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 11:07:38,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:38,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:38,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:38,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:38,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:38,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:38,510 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:38,517 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:07:38,517 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:38,520 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:38,524 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-07-01 11:07:38,524 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:38,524 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0, 1*ULTIMATE.start_f_~x~0 - 1 >= 0] [2020-07-01 11:07:38,557 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2020-07-01 11:07:38,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:38,582 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:38,583 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:38,593 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:38,593 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:38,621 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 11:07:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:38,666 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:38,666 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:38,674 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 11:07:38,674 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2020-07-01 11:07:38,674 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 21 states and 37 transitions. cyclomatic complexity: 22 Second operand 5 states. [2020-07-01 11:07:38,791 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 21 states and 37 transitions. cyclomatic complexity: 22. Second operand 5 states. Result 42 states and 71 transitions. Complement of second has 15 states. [2020-07-01 11:07:38,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 11:07:38,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:07:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2020-07-01 11:07:38,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:07:38,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:38,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 8 letters. Loop has 3 letters. [2020-07-01 11:07:38,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:38,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-01 11:07:38,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:38,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 71 transitions. [2020-07-01 11:07:38,798 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-07-01 11:07:38,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 36 states and 61 transitions. [2020-07-01 11:07:38,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-07-01 11:07:38,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-07-01 11:07:38,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 61 transitions. [2020-07-01 11:07:38,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:38,800 INFO L688 BuchiCegarLoop]: Abstraction has 36 states and 61 transitions. [2020-07-01 11:07:38,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 61 transitions. [2020-07-01 11:07:38,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2020-07-01 11:07:38,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-01 11:07:38,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 52 transitions. [2020-07-01 11:07:38,802 INFO L711 BuchiCegarLoop]: Abstraction has 30 states and 52 transitions. [2020-07-01 11:07:38,803 INFO L591 BuchiCegarLoop]: Abstraction has 30 states and 52 transitions. [2020-07-01 11:07:38,803 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 11:07:38,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 52 transitions. [2020-07-01 11:07:38,804 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-07-01 11:07:38,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:38,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:38,804 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:07:38,804 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:38,804 INFO L794 eck$LassoCheckResult]: Stem: 498#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 499#L41 [129] L41-->L23-3: Formula: (and (= |v_ULTIMATE.start_f_#in~d_3| v_ULTIMATE.start_f_~d_9) (<= v_ULTIMATE.start_f_~k~0_13 1073741823) (= 1 v_ULTIMATE.start_f_~z~0_15) (= 2 |v_ULTIMATE.start_f_#in~d_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet5_7|)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_7|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_13, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_11|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_3|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_7|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_5|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_13, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_5|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_5|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_15, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_15, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_9} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~d] 513#L23-3 [113] L23-3-->L29-5: Formula: (>= v_ULTIMATE.start_f_~z~0_12 v_ULTIMATE.start_f_~k~0_11) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_11, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_12} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_11, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_12} AuxVars[] AssignedVars[] 514#L29-5 [107] L29-5-->L29-3: Formula: (and (< 0 v_ULTIMATE.start_f_~y~0_2) (< 0 v_ULTIMATE.start_f_~x~0_2)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} AuxVars[] AssignedVars[] 516#L29-3 [124] L29-3-->L30-1: Formula: (< 0 |v_ULTIMATE.start_f_#t~nondet3_3|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_3|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 517#L30-1 [2020-07-01 11:07:38,805 INFO L796 eck$LassoCheckResult]: Loop: 517#L30-1 [93] L30-1-->L29-5: Formula: (and (= v_ULTIMATE.start_f_~z~0_3 (+ v_ULTIMATE.start_f_~z~0_4 (- 1))) (= v_ULTIMATE.start_f_~x~0_5 (+ v_ULTIMATE.start_f_~x~0_6 (* v_ULTIMATE.start_f_~d_3 (- 1)))) (= v_ULTIMATE.start_f_~y~0_5 |v_ULTIMATE.start_f_#t~nondet4_3|)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_6, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_3|, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_4, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_3} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_5, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_2|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_3, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_3} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0] 520#L29-5 [107] L29-5-->L29-3: Formula: (and (< 0 v_ULTIMATE.start_f_~y~0_2) (< 0 v_ULTIMATE.start_f_~x~0_2)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} AuxVars[] AssignedVars[] 521#L29-3 [124] L29-3-->L30-1: Formula: (< 0 |v_ULTIMATE.start_f_#t~nondet3_3|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_3|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 517#L30-1 [2020-07-01 11:07:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:38,805 INFO L82 PathProgramCache]: Analyzing trace with hash 124936324, now seen corresponding path program 1 times [2020-07-01 11:07:38,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:38,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846056774] [2020-07-01 11:07:38,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:38,814 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:38,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:38,815 INFO L82 PathProgramCache]: Analyzing trace with hash 122605, now seen corresponding path program 2 times [2020-07-01 11:07:38,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:38,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232110364] [2020-07-01 11:07:38,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:38,830 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:38,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1758524534, now seen corresponding path program 1 times [2020-07-01 11:07:38,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:38,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016349138] [2020-07-01 11:07:38,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:38,843 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:38,871 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:38,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:38,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:38,871 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:38,871 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:38,871 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:38,871 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:38,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:38,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-07-01 11:07:38,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:38,872 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:38,873 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 11:07:38,878 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 11:07:38,881 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 11:07:38,888 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 11:07:38,928 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:38,929 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:38,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:38,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:38,940 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:38,940 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:38,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:38,974 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:39,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,027 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~z~0=-2}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [1, 2, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,065 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,066 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=2, ULTIMATE.start_f_~y~0=2} Honda state: {ULTIMATE.start_f_#t~nondet4=2, ULTIMATE.start_f_~y~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,102 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,103 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=1} Honda state: {ULTIMATE.start_f_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:07:39,168 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:39,168 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:39,168 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:39,168 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:39,168 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:39,168 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,168 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:39,169 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:39,169 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Lasso [2020-07-01 11:07:39,169 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:39,169 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:39,170 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 11:07:39,173 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 11:07:39,180 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 11:07:39,187 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 11:07:39,189 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 11:07:39,192 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 11:07:39,194 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 11:07:39,205 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 11:07:39,207 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 11:07:39,285 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:39,285 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,292 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,325 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:39,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,380 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,380 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~k~0=-1, ULTIMATE.start_f_~z~0=1} Generalized eigenvectors: [{ULTIMATE.start_f_~k~0=-1, ULTIMATE.start_f_~z~0=2}, {ULTIMATE.start_f_~k~0=-1, ULTIMATE.start_f_~z~0=2}, {ULTIMATE.start_f_~k~0=2, ULTIMATE.start_f_~z~0=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,419 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,419 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0, ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_~y~0=4, ULTIMATE.start_f_#t~nondet4=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,455 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,491 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,491 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,528 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:39,528 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:39,560 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:39,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:39,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:39,857 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:39,859 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:39,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:39,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:39,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:39,860 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:39,860 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:39,860 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:39,860 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:39,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Lasso [2020-07-01 11:07:39,861 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:39,861 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:39,862 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 11:07:39,865 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 11:07:39,870 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 11:07:39,875 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 11:07:39,877 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 11:07:39,879 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 11:07:39,881 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 11:07:39,883 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 11:07:39,891 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 11:07:39,960 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:39,961 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:39,964 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 11:07:39,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:39,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:39,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:39,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:39,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:39,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:39,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:39,969 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 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:40,001 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 11:07:40,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:40,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:40,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:40,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:40,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:40,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:40,011 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 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:40,043 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:07:40,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:40,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:40,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:40,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:40,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:40,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:40,053 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 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:40,086 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 11:07:40,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:40,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:40,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:40,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:40,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:40,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:40,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:40,091 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 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:40,123 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 11:07:40,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:40,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:40,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:40,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:40,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:40,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:40,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:40,128 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 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:40,160 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 11:07:40,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:40,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:40,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:40,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:40,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:40,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:40,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:40,165 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 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:40,198 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 11:07:40,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:40,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:40,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:40,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:40,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:40,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:40,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:40,203 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 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:40,235 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 11:07:40,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:40,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:40,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:40,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:40,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:40,241 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:40,248 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:40,254 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:07:40,254 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:40,257 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:40,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-07-01 11:07:40,260 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:40,260 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0, 1*ULTIMATE.start_f_~x~0 - 1 >= 0] [2020-07-01 11:07:40,293 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2020-07-01 11:07:40,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:40,318 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:40,319 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:40,329 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:40,329 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:40,352 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 11:07:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:40,389 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:40,405 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:40,413 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 11:07:40,413 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2020-07-01 11:07:40,413 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 30 states and 52 transitions. cyclomatic complexity: 30 Second operand 5 states. [2020-07-01 11:07:40,529 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 30 states and 52 transitions. cyclomatic complexity: 30. Second operand 5 states. Result 89 states and 158 transitions. Complement of second has 15 states. [2020-07-01 11:07:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 11:07:40,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:07:40,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2020-07-01 11:07:40,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:07:40,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:40,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 8 letters. Loop has 3 letters. [2020-07-01 11:07:40,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:40,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-01 11:07:40,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:40,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 158 transitions. [2020-07-01 11:07:40,536 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2020-07-01 11:07:40,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 67 states and 113 transitions. [2020-07-01 11:07:40,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-07-01 11:07:40,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2020-07-01 11:07:40,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 113 transitions. [2020-07-01 11:07:40,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:40,538 INFO L688 BuchiCegarLoop]: Abstraction has 67 states and 113 transitions. [2020-07-01 11:07:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 113 transitions. [2020-07-01 11:07:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 27. [2020-07-01 11:07:40,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-01 11:07:40,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 47 transitions. [2020-07-01 11:07:40,541 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 47 transitions. [2020-07-01 11:07:40,541 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 47 transitions. [2020-07-01 11:07:40,541 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2020-07-01 11:07:40,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 47 transitions. [2020-07-01 11:07:40,542 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-01 11:07:40,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:40,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:40,542 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 11:07:40,543 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:40,543 INFO L794 eck$LassoCheckResult]: Stem: 703#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 704#L41 [119] L41-->L18: Formula: (and (= |v_ULTIMATE.start_f_#in~d_1| 1) (> 0 |v_ULTIMATE.start_main_#t~nondet5_3|) (= v_ULTIMATE.start_f_~d_1 |v_ULTIMATE.start_f_#in~d_1|) (= v_ULTIMATE.start_f_~z~0_1 1)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_1, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_1|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_1|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_3, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_1|, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_1|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_1|, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_1, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_1, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~d, ULTIMATE.start_f_~z~0] 713#L18 [110] L18-->L23-1: Formula: (>= 1073741823 v_ULTIMATE.start_f_~k~0_4) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} AuxVars[] AssignedVars[] 710#L23-1 [112] L23-1-->L29-2: Formula: (>= v_ULTIMATE.start_f_~z~0_5 v_ULTIMATE.start_f_~k~0_5) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_5} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_5} AuxVars[] AssignedVars[] 711#L29-2 [86] L29-2-->L29: Formula: (and (< 0 v_ULTIMATE.start_f_~x~0_8) (< 0 v_ULTIMATE.start_f_~y~0_9)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} AuxVars[] AssignedVars[] 709#L29 [127] L29-->L30: Formula: (< 0 |v_ULTIMATE.start_f_#t~nondet3_7|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_7|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_6|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 717#L30 [2020-07-01 11:07:40,543 INFO L796 eck$LassoCheckResult]: Loop: 717#L30 [94] L30-->L29-2: Formula: (and (= v_ULTIMATE.start_f_~y~0_10 |v_ULTIMATE.start_f_#t~nondet4_5|) (= v_ULTIMATE.start_f_~x~0_9 (+ v_ULTIMATE.start_f_~x~0_10 (* v_ULTIMATE.start_f_~d_5 (- 1)))) (= v_ULTIMATE.start_f_~z~0_8 (+ v_ULTIMATE.start_f_~z~0_9 (- 1)))) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_10, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_5|, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_9, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_5} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_9, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_4|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_10, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_8, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_5} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0] 705#L29-2 [86] L29-2-->L29: Formula: (and (< 0 v_ULTIMATE.start_f_~x~0_8) (< 0 v_ULTIMATE.start_f_~y~0_9)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} AuxVars[] AssignedVars[] 706#L29 [126] L29-->L30: Formula: (> 0 |v_ULTIMATE.start_f_#t~nondet3_7|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_7|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_6|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 717#L30 [2020-07-01 11:07:40,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:40,543 INFO L82 PathProgramCache]: Analyzing trace with hash -431262081, now seen corresponding path program 1 times [2020-07-01 11:07:40,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:40,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013357848] [2020-07-01 11:07:40,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:40,552 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:40,552 INFO L82 PathProgramCache]: Analyzing trace with hash 122917, now seen corresponding path program 1 times [2020-07-01 11:07:40,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:40,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917708651] [2020-07-01 11:07:40,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:40,559 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:40,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:40,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1481379609, now seen corresponding path program 1 times [2020-07-01 11:07:40,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:40,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204470377] [2020-07-01 11:07:40,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:40,570 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:40,592 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:40,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:40,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:40,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:40,592 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:40,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:40,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:40,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:40,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-07-01 11:07:40,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:40,593 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:40,594 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 11:07:40,597 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 11:07:40,601 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 11:07:40,604 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 11:07:40,657 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:40,657 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:40,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:40,662 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:40,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:40,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:40,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:40,714 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~z~0=-2}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [1, 2, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:40,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:40,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:40,752 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:40,752 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:40,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:40,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:40,788 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:40,788 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:40,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:40,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:40,827 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:40,827 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=2, ULTIMATE.start_f_~y~0=2} Honda state: {ULTIMATE.start_f_#t~nondet4=2, ULTIMATE.start_f_~y~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:07:40,889 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:40,889 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:40,889 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:40,890 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:40,890 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:40,890 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:40,890 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:40,890 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:40,890 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Lasso [2020-07-01 11:07:40,890 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:40,890 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:40,891 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 11:07:40,894 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 11:07:40,896 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 11:07:40,898 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 11:07:40,907 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 11:07:40,909 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 11:07:40,910 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 11:07:40,916 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 11:07:40,918 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 11:07:40,991 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:40,991 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:40,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:40,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:40,999 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:40,999 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:41,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:41,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:41,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:41,035 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:41,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:41,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:41,071 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:41,071 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:41,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:41,103 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:41,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:41,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:41,425 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:41,427 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:41,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:41,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:41,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:41,428 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:41,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:41,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:41,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Lasso [2020-07-01 11:07:41,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:41,429 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:41,430 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 11:07:41,433 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 11:07:41,435 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 11:07:41,440 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 11:07:41,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:41,444 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 11:07:41,446 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 11:07:41,448 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 11:07:41,454 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 11:07:41,531 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:41,532 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,535 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 11:07:41,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:41,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:41,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:41,541 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 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:07:41,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:41,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:41,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:41,578 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 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,610 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 11:07:41,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:41,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:41,620 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 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,652 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 11:07:41,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:41,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:41,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:41,657 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 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,690 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 11:07:41,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:41,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:41,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:41,694 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 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,726 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 11:07:41,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:41,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:41,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:41,731 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 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,764 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 11:07:41,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:41,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:41,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:41,769 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 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,801 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 11:07:41,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:41,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:41,812 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 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,844 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 11:07:41,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:41,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:41,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:41,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:41,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:41,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:41,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:41,865 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-01 11:07:41,865 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:41,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:41,871 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:41,871 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:41,872 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-07-01 11:07:41,903 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:41,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:41,928 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:41,929 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:41,940 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:41,940 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:41,964 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 11:07:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:42,005 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:42,005 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:42,012 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 11:07:42,012 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2020-07-01 11:07:42,013 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 27 states and 47 transitions. cyclomatic complexity: 27 Second operand 5 states. [2020-07-01 11:07:42,140 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 27 states and 47 transitions. cyclomatic complexity: 27. Second operand 5 states. Result 43 states and 71 transitions. Complement of second has 11 states. [2020-07-01 11:07:42,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 11:07:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:07:42,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2020-07-01 11:07:42,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 11:07:42,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:42,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 11:07:42,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:42,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 6 letters. Loop has 6 letters. [2020-07-01 11:07:42,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:42,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 71 transitions. [2020-07-01 11:07:42,145 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-07-01 11:07:42,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 62 transitions. [2020-07-01 11:07:42,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-07-01 11:07:42,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-07-01 11:07:42,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 62 transitions. [2020-07-01 11:07:42,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:42,146 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 62 transitions. [2020-07-01 11:07:42,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 62 transitions. [2020-07-01 11:07:42,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-07-01 11:07:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-01 11:07:42,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 60 transitions. [2020-07-01 11:07:42,149 INFO L711 BuchiCegarLoop]: Abstraction has 35 states and 60 transitions. [2020-07-01 11:07:42,149 INFO L591 BuchiCegarLoop]: Abstraction has 35 states and 60 transitions. [2020-07-01 11:07:42,149 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2020-07-01 11:07:42,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 60 transitions. [2020-07-01 11:07:42,150 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-07-01 11:07:42,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:42,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:42,151 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 11:07:42,151 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:42,151 INFO L794 eck$LassoCheckResult]: Stem: 853#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 854#L41 [119] L41-->L18: Formula: (and (= |v_ULTIMATE.start_f_#in~d_1| 1) (> 0 |v_ULTIMATE.start_main_#t~nondet5_3|) (= v_ULTIMATE.start_f_~d_1 |v_ULTIMATE.start_f_#in~d_1|) (= v_ULTIMATE.start_f_~z~0_1 1)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_1, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_1|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_1|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_3, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_1|, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_1|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_1|, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_1, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_1, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~d, ULTIMATE.start_f_~z~0] 863#L18 [110] L18-->L23-1: Formula: (>= 1073741823 v_ULTIMATE.start_f_~k~0_4) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} AuxVars[] AssignedVars[] 860#L23-1 [112] L23-1-->L29-2: Formula: (>= v_ULTIMATE.start_f_~z~0_5 v_ULTIMATE.start_f_~k~0_5) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_5} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_5} AuxVars[] AssignedVars[] 861#L29-2 [86] L29-2-->L29: Formula: (and (< 0 v_ULTIMATE.start_f_~x~0_8) (< 0 v_ULTIMATE.start_f_~y~0_9)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} AuxVars[] AssignedVars[] 859#L29 [126] L29-->L30: Formula: (> 0 |v_ULTIMATE.start_f_#t~nondet3_7|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_7|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_6|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 872#L30 [2020-07-01 11:07:42,151 INFO L796 eck$LassoCheckResult]: Loop: 872#L30 [94] L30-->L29-2: Formula: (and (= v_ULTIMATE.start_f_~y~0_10 |v_ULTIMATE.start_f_#t~nondet4_5|) (= v_ULTIMATE.start_f_~x~0_9 (+ v_ULTIMATE.start_f_~x~0_10 (* v_ULTIMATE.start_f_~d_5 (- 1)))) (= v_ULTIMATE.start_f_~z~0_8 (+ v_ULTIMATE.start_f_~z~0_9 (- 1)))) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_10, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_5|, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_9, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_5} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_9, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_4|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_10, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_8, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_5} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0] 855#L29-2 [86] L29-2-->L29: Formula: (and (< 0 v_ULTIMATE.start_f_~x~0_8) (< 0 v_ULTIMATE.start_f_~y~0_9)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} AuxVars[] AssignedVars[] 856#L29 [126] L29-->L30: Formula: (> 0 |v_ULTIMATE.start_f_#t~nondet3_7|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_7|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_6|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 872#L30 [2020-07-01 11:07:42,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:42,152 INFO L82 PathProgramCache]: Analyzing trace with hash -431262082, now seen corresponding path program 1 times [2020-07-01 11:07:42,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:42,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194967317] [2020-07-01 11:07:42,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:42,162 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:42,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:42,162 INFO L82 PathProgramCache]: Analyzing trace with hash 122917, now seen corresponding path program 2 times [2020-07-01 11:07:42,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:42,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145203340] [2020-07-01 11:07:42,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:42,168 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:42,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:42,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1481409400, now seen corresponding path program 1 times [2020-07-01 11:07:42,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:42,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424240956] [2020-07-01 11:07:42,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:42,179 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:42,203 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:42,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:42,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:42,203 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:42,203 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:42,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:42,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:42,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Loop [2020-07-01 11:07:42,204 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:42,204 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:42,205 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 11:07:42,210 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 11:07:42,213 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 11:07:42,219 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 11:07:42,253 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:42,253 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:42,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:42,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:42,262 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=2, ULTIMATE.start_f_~y~0=2} Honda state: {ULTIMATE.start_f_#t~nondet4=2, ULTIMATE.start_f_~y~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:42,295 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:42,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:42,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:42,347 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~z~0=-2}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [1, 2, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:42,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:42,384 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:42,384 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:42,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:42,421 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:42,421 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:07:42,484 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:42,484 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:42,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:42,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:42,484 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:42,485 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,485 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:42,485 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:42,485 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Lasso [2020-07-01 11:07:42,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:42,485 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:42,486 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 11:07:42,495 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 11:07:42,498 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 11:07:42,500 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 11:07:42,505 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 11:07:42,511 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 11:07:42,513 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 11:07:42,515 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 11:07:42,517 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 11:07:42,583 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:42,584 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:42,588 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:42,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:42,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:42,897 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:42,899 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:42,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:42,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:42,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:42,900 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:42,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:42,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:42,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:42,900 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Lasso [2020-07-01 11:07:42,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:42,900 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:42,902 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 11:07:42,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:42,914 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 11:07:42,916 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 11:07:42,921 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 11:07:42,923 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 11:07:42,925 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 11:07:42,931 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 11:07:42,933 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 11:07:42,999 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:42,999 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:43,002 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 11:07:43,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:43,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:43,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:43,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:43,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:43,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:43,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:43,007 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 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:43,039 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 11:07:43,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:43,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:43,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:43,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:43,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:43,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:43,051 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:43,058 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 11:07:43,058 INFO L444 ModelExtractionUtils]: 7 out of 13 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 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:43,061 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:43,064 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:43,064 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:43,064 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-07-01 11:07:43,096 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:43,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:43,120 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:43,120 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:43,130 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:43,131 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:43,153 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 11:07:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:43,194 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:43,194 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:43,203 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 11:07:43,203 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2020-07-01 11:07:43,203 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 35 states and 60 transitions. cyclomatic complexity: 34 Second operand 5 states. [2020-07-01 11:07:43,315 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 35 states and 60 transitions. cyclomatic complexity: 34. Second operand 5 states. Result 76 states and 127 transitions. Complement of second has 11 states. [2020-07-01 11:07:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 11:07:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:07:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2020-07-01 11:07:43,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 11:07:43,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:43,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 11:07:43,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:43,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 6 letters. Loop has 6 letters. [2020-07-01 11:07:43,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:43,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 127 transitions. [2020-07-01 11:07:43,321 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-07-01 11:07:43,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 58 states and 96 transitions. [2020-07-01 11:07:43,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-07-01 11:07:43,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-07-01 11:07:43,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 96 transitions. [2020-07-01 11:07:43,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:43,322 INFO L688 BuchiCegarLoop]: Abstraction has 58 states and 96 transitions. [2020-07-01 11:07:43,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 96 transitions. [2020-07-01 11:07:43,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 32. [2020-07-01 11:07:43,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-01 11:07:43,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 55 transitions. [2020-07-01 11:07:43,325 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 55 transitions. [2020-07-01 11:07:43,325 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 55 transitions. [2020-07-01 11:07:43,325 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2020-07-01 11:07:43,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 55 transitions. [2020-07-01 11:07:43,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:07:43,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:43,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:43,327 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2020-07-01 11:07:43,327 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:07:43,327 INFO L794 eck$LassoCheckResult]: Stem: 1045#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 1046#L41 [129] L41-->L23-3: Formula: (and (= |v_ULTIMATE.start_f_#in~d_3| v_ULTIMATE.start_f_~d_9) (<= v_ULTIMATE.start_f_~k~0_13 1073741823) (= 1 v_ULTIMATE.start_f_~z~0_15) (= 2 |v_ULTIMATE.start_f_#in~d_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet5_7|)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_7|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_13, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_11|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_3|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_7|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_5|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_13, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_5|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_5|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_15, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_15, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_9} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~d] 1065#L23-3 [113] L23-3-->L29-5: Formula: (>= v_ULTIMATE.start_f_~z~0_12 v_ULTIMATE.start_f_~k~0_11) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_11, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_12} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_11, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_12} AuxVars[] AssignedVars[] 1066#L29-5 [107] L29-5-->L29-3: Formula: (and (< 0 v_ULTIMATE.start_f_~y~0_2) (< 0 v_ULTIMATE.start_f_~x~0_2)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} AuxVars[] AssignedVars[] 1068#L29-3 [125] L29-3-->L30-1: Formula: (> 0 |v_ULTIMATE.start_f_#t~nondet3_3|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_3|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 1058#L30-1 [93] L30-1-->L29-5: Formula: (and (= v_ULTIMATE.start_f_~z~0_3 (+ v_ULTIMATE.start_f_~z~0_4 (- 1))) (= v_ULTIMATE.start_f_~x~0_5 (+ v_ULTIMATE.start_f_~x~0_6 (* v_ULTIMATE.start_f_~d_3 (- 1)))) (= v_ULTIMATE.start_f_~y~0_5 |v_ULTIMATE.start_f_#t~nondet4_3|)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_6, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_3|, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_4, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_3} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_5, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_2|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_3, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_3} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0] 1059#L29-5 [107] L29-5-->L29-3: Formula: (and (< 0 v_ULTIMATE.start_f_~y~0_2) (< 0 v_ULTIMATE.start_f_~x~0_2)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} AuxVars[] AssignedVars[] 1069#L29-3 [83] L29-3-->L29-5: Formula: (and (= 0 |v_ULTIMATE.start_f_#t~nondet3_5|) (= v_ULTIMATE.start_f_~y~0_6 (+ (* v_ULTIMATE.start_f_~d_4 (- 1)) v_ULTIMATE.start_f_~y~0_7))) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_5|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_7, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_4} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_4|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_6, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_4} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_~y~0] 1042#L29-5 [2020-07-01 11:07:43,328 INFO L796 eck$LassoCheckResult]: Loop: 1042#L29-5 [107] L29-5-->L29-3: Formula: (and (< 0 v_ULTIMATE.start_f_~y~0_2) (< 0 v_ULTIMATE.start_f_~x~0_2)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_2, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_2} AuxVars[] AssignedVars[] 1041#L29-3 [83] L29-3-->L29-5: Formula: (and (= 0 |v_ULTIMATE.start_f_#t~nondet3_5|) (= v_ULTIMATE.start_f_~y~0_6 (+ (* v_ULTIMATE.start_f_~d_4 (- 1)) v_ULTIMATE.start_f_~y~0_7))) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_5|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_7, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_4} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_4|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_6, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_4} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_~y~0] 1042#L29-5 [2020-07-01 11:07:43,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:43,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1758494784, now seen corresponding path program 1 times [2020-07-01 11:07:43,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:43,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981775633] [2020-07-01 11:07:43,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:43,339 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:43,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:43,339 INFO L82 PathProgramCache]: Analyzing trace with hash 4361, now seen corresponding path program 2 times [2020-07-01 11:07:43,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:43,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17685334] [2020-07-01 11:07:43,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:43,344 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:43,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:43,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1991336696, now seen corresponding path program 2 times [2020-07-01 11:07:43,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:43,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713662591] [2020-07-01 11:07:43,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:43,356 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:43,431 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:43,431 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:43,431 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:43,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:43,432 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:43,432 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:43,432 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:43,432 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:43,432 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration9_Lasso [2020-07-01 11:07:43,432 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:43,432 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:43,434 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 11:07:43,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:43,439 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 11:07:43,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:43,444 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 11:07:43,453 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 11:07:43,455 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 11:07:43,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:43,459 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 11:07:43,461 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 11:07:43,463 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 11:07:43,527 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:43,527 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:43,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:43,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:43,535 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:43,535 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:43,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:43,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:43,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:43,571 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:43,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:43,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:43,607 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:43,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:43,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:43,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:43,644 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:43,644 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:43,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:43,676 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:43,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:43,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:43,827 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:43,829 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:43,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:43,829 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:43,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:43,830 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:43,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:43,830 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:43,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:43,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration9_Lasso [2020-07-01 11:07:43,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:43,830 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:43,831 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 11:07:43,835 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 11:07:43,837 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 11:07:43,839 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 11:07:43,841 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 11:07:43,844 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 11:07:43,846 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 11:07:43,847 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 11:07:43,849 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 11:07:43,859 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 11:07:43,862 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 11:07:43,928 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:43,928 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:43,932 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 11:07:43,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:43,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:43,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:43,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:43,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:43,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:43,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:43,937 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 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:43,969 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 11:07:43,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:43,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:43,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:43,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:43,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:43,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:43,976 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 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:44,009 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 11:07:44,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:44,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:44,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:44,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:44,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:44,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:44,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:44,014 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 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:44,046 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 11:07:44,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:44,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:44,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:44,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:44,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:44,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:44,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:44,051 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 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:44,083 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 11:07:44,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:44,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:44,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:44,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:44,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:44,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:44,091 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 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:44,124 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 11:07:44,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:44,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:44,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:44,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:44,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:44,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:44,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:44,129 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 123 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 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:44,161 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 11:07:44,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:44,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:44,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:44,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:44,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:44,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:44,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:44,166 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 124 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 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:44,199 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 11:07:44,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:44,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:44,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:44,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:44,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:44,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:44,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:44,204 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 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:44,237 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 11:07:44,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:44,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:44,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:44,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:44,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:44,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:44,249 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:44,258 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 11:07:44,258 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:44,261 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:44,264 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:44,264 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:44,264 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-07-01 11:07:44,295 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:44,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:44,322 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:44,322 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:44,333 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:44,333 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:44,345 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 11:07:44,365 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:07:44,365 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-07-01 11:07:44,365 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 32 states and 55 transitions. cyclomatic complexity: 31 Second operand 4 states. [2020-07-01 11:07:44,434 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 32 states and 55 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 83 states and 139 transitions. Complement of second has 15 states. [2020-07-01 11:07:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:07:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:07:44,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2020-07-01 11:07:44,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 8 letters. Loop has 2 letters. [2020-07-01 11:07:44,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:44,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 10 letters. Loop has 2 letters. [2020-07-01 11:07:44,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:44,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 11:07:44,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:44,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 139 transitions. [2020-07-01 11:07:44,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:07:44,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 17 states and 28 transitions. [2020-07-01 11:07:44,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 11:07:44,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 11:07:44,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 28 transitions. [2020-07-01 11:07:44,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:44,439 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 28 transitions. [2020-07-01 11:07:44,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 28 transitions. [2020-07-01 11:07:44,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-01 11:07:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 11:07:44,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 28 transitions. [2020-07-01 11:07:44,441 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 28 transitions. [2020-07-01 11:07:44,441 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 28 transitions. [2020-07-01 11:07:44,441 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2020-07-01 11:07:44,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 28 transitions. [2020-07-01 11:07:44,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:07:44,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:44,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:44,443 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:07:44,443 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:07:44,443 INFO L794 eck$LassoCheckResult]: Stem: 1232#ULTIMATE.startENTRY [100] ULTIMATE.startENTRY-->L41: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res] 1233#L41 [119] L41-->L18: Formula: (and (= |v_ULTIMATE.start_f_#in~d_1| 1) (> 0 |v_ULTIMATE.start_main_#t~nondet5_3|) (= v_ULTIMATE.start_f_~d_1 |v_ULTIMATE.start_f_#in~d_1|) (= v_ULTIMATE.start_f_~z~0_1 1)) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_1, ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_1|, ULTIMATE.start_f_#in~d=|v_ULTIMATE.start_f_#in~d_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_1|, ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_3, ULTIMATE.start_f_#t~nondet0=|v_ULTIMATE.start_f_#t~nondet0_1|, ULTIMATE.start_f_#t~nondet1=|v_ULTIMATE.start_f_#t~nondet1_1|, ULTIMATE.start_f_#t~nondet2=|v_ULTIMATE.start_f_#t~nondet2_1|, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_1, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_1, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~k~0, ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_#in~d, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_#t~nondet0, ULTIMATE.start_f_#t~nondet1, ULTIMATE.start_f_#t~nondet2, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~d, ULTIMATE.start_f_~z~0] 1241#L18 [110] L18-->L23-1: Formula: (>= 1073741823 v_ULTIMATE.start_f_~k~0_4) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_4} AuxVars[] AssignedVars[] 1238#L23-1 [112] L23-1-->L29-2: Formula: (>= v_ULTIMATE.start_f_~z~0_5 v_ULTIMATE.start_f_~k~0_5) InVars {ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_5} OutVars{ULTIMATE.start_f_~k~0=v_ULTIMATE.start_f_~k~0_5, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_5} AuxVars[] AssignedVars[] 1239#L29-2 [86] L29-2-->L29: Formula: (and (< 0 v_ULTIMATE.start_f_~x~0_8) (< 0 v_ULTIMATE.start_f_~y~0_9)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} AuxVars[] AssignedVars[] 1247#L29 [127] L29-->L30: Formula: (< 0 |v_ULTIMATE.start_f_#t~nondet3_7|) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_7|} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_6|} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3] 1244#L30 [94] L30-->L29-2: Formula: (and (= v_ULTIMATE.start_f_~y~0_10 |v_ULTIMATE.start_f_#t~nondet4_5|) (= v_ULTIMATE.start_f_~x~0_9 (+ v_ULTIMATE.start_f_~x~0_10 (* v_ULTIMATE.start_f_~d_5 (- 1)))) (= v_ULTIMATE.start_f_~z~0_8 (+ v_ULTIMATE.start_f_~z~0_9 (- 1)))) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_10, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_5|, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_9, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_5} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_9, ULTIMATE.start_f_#t~nondet4=|v_ULTIMATE.start_f_#t~nondet4_4|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_10, ULTIMATE.start_f_~z~0=v_ULTIMATE.start_f_~z~0_8, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_5} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet4, ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~y~0, ULTIMATE.start_f_~z~0] 1245#L29-2 [86] L29-2-->L29: Formula: (and (< 0 v_ULTIMATE.start_f_~x~0_8) (< 0 v_ULTIMATE.start_f_~y~0_9)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} AuxVars[] AssignedVars[] 1248#L29 [92] L29-->L29-2: Formula: (and (= 0 |v_ULTIMATE.start_f_#t~nondet3_9|) (= v_ULTIMATE.start_f_~y~0_11 (+ (* v_ULTIMATE.start_f_~d_6 (- 1)) v_ULTIMATE.start_f_~y~0_12))) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_9|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_12, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_6} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_8|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_11, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_6} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_~y~0] 1234#L29-2 [2020-07-01 11:07:44,443 INFO L796 eck$LassoCheckResult]: Loop: 1234#L29-2 [86] L29-2-->L29: Formula: (and (< 0 v_ULTIMATE.start_f_~x~0_8) (< 0 v_ULTIMATE.start_f_~y~0_9)) InVars {ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} OutVars{ULTIMATE.start_f_~x~0=v_ULTIMATE.start_f_~x~0_8, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_9} AuxVars[] AssignedVars[] 1235#L29 [92] L29-->L29-2: Formula: (and (= 0 |v_ULTIMATE.start_f_#t~nondet3_9|) (= v_ULTIMATE.start_f_~y~0_11 (+ (* v_ULTIMATE.start_f_~d_6 (- 1)) v_ULTIMATE.start_f_~y~0_12))) InVars {ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_9|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_12, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_6} OutVars{ULTIMATE.start_f_#t~nondet3=|v_ULTIMATE.start_f_#t~nondet3_8|, ULTIMATE.start_f_~y~0=v_ULTIMATE.start_f_~y~0_11, ULTIMATE.start_f_~d=v_ULTIMATE.start_f_~d_6} AuxVars[] AssignedVars[ULTIMATE.start_f_#t~nondet3, ULTIMATE.start_f_~y~0] 1234#L29-2 [2020-07-01 11:07:44,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:44,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1481379643, now seen corresponding path program 1 times [2020-07-01 11:07:44,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:44,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927862643] [2020-07-01 11:07:44,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:44,457 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:44,472 INFO L82 PathProgramCache]: Analyzing trace with hash 3719, now seen corresponding path program 2 times [2020-07-01 11:07:44,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:44,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025160555] [2020-07-01 11:07:44,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:44,478 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:44,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1971659189, now seen corresponding path program 2 times [2020-07-01 11:07:44,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:44,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414072560] [2020-07-01 11:07:44,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:44,490 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:44,584 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:44,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:44,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:44,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:44,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:44,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:44,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:44,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration10_Lasso [2020-07-01 11:07:44,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:44,586 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:44,587 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 11:07:44,590 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 11:07:44,593 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 11:07:44,595 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 11:07:44,597 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 11:07:44,599 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 11:07:44,602 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 11:07:44,605 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 11:07:44,607 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 11:07:44,609 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 11:07:44,611 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 11:07:44,681 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:44,682 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 127 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,688 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,688 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,723 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,723 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 129 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,757 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,757 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 130 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,792 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,792 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 131 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,826 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,826 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 132 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 132 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,861 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,861 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 133 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 133 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,897 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,897 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 134 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 134 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,931 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,932 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 135 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 135 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:44,966 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:44,966 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 136 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 136 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:44,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:44,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:45,001 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:45,001 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 137 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 137 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:45,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:45,032 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 138 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 138 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:45,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:45,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:45,169 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:45,171 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:45,171 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:45,171 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:45,171 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:45,171 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:45,171 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,171 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:45,171 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:45,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration10_Lasso [2020-07-01 11:07:45,172 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:45,172 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:45,173 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 11:07:45,176 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 11:07:45,178 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 11:07:45,180 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 11:07:45,182 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 11:07:45,184 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 11:07:45,186 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 11:07:45,189 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 11:07:45,190 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 11:07:45,199 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 11:07:45,201 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 11:07:45,261 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:45,262 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 139 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 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,264 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 11:07:45,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:45,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:45,271 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 140 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 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,302 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 11:07:45,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:45,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:45,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:45,307 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 141 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 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,338 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 11:07:45,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:45,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:45,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:45,342 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 142 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 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,373 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 11:07:45,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:45,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:45,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:45,377 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 143 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 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,421 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 11:07:45,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:45,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:45,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:45,425 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 144 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 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,456 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 11:07:45,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:45,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:45,462 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 145 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 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,493 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 11:07:45,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,497 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:45,497 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:45,501 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 146 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 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,532 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 11:07:45,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:45,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:45,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:45,536 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 147 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 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,567 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 11:07:45,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:45,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:45,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:45,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:45,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:45,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:45,579 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:45,586 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:07:45,586 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 148 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 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:45,589 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:45,592 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:45,592 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:45,593 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-07-01 11:07:45,623 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:45,651 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:45,651 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:45,661 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:45,662 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:45,672 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 11:07:45,692 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:07:45,692 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-07-01 11:07:45,692 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 28 transitions. cyclomatic complexity: 15 Second operand 4 states. [2020-07-01 11:07:45,756 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 28 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 60 states and 97 transitions. Complement of second has 15 states. [2020-07-01 11:07:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:07:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:07:45,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2020-07-01 11:07:45,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 9 letters. Loop has 2 letters. [2020-07-01 11:07:45,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:45,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 11 letters. Loop has 2 letters. [2020-07-01 11:07:45,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:45,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 9 letters. Loop has 4 letters. [2020-07-01 11:07:45,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:45,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 97 transitions. [2020-07-01 11:07:45,760 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:07:45,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 0 states and 0 transitions. [2020-07-01 11:07:45,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:07:45,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:07:45,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:07:45,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:07:45,761 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:07:45,761 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:07:45,761 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:07:45,761 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2020-07-01 11:07:45,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:07:45,761 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:07:45,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:07:45,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:45 BasicIcfg [2020-07-01 11:07:45,768 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:07:45,770 INFO L168 Benchmark]: Toolchain (without parser) took 37514.95 ms. Allocated memory was 514.9 MB in the beginning and 682.6 MB in the end (delta: 167.8 MB). Free memory was 438.9 MB in the beginning and 482.4 MB in the end (delta: -43.6 MB). Peak memory consumption was 124.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:45,770 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.6 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:07:45,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.53 ms. Allocated memory was 514.9 MB in the beginning and 554.2 MB in the end (delta: 39.3 MB). Free memory was 438.3 MB in the beginning and 522.0 MB in the end (delta: -83.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:45,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.43 ms. Allocated memory is still 554.2 MB. Free memory was 522.0 MB in the beginning and 520.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:45,772 INFO L168 Benchmark]: Boogie Preprocessor took 23.17 ms. Allocated memory is still 554.2 MB. Free memory was 520.3 MB in the beginning and 518.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:45,772 INFO L168 Benchmark]: RCFGBuilder took 270.68 ms. Allocated memory is still 554.2 MB. Free memory was 518.7 MB in the beginning and 503.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:45,772 INFO L168 Benchmark]: BlockEncodingV2 took 82.42 ms. Allocated memory is still 554.2 MB. Free memory was 503.7 MB in the beginning and 497.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:45,773 INFO L168 Benchmark]: TraceAbstraction took 102.66 ms. Allocated memory is still 554.2 MB. Free memory was 496.6 MB in the beginning and 490.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:45,773 INFO L168 Benchmark]: BuchiAutomizer took 36693.03 ms. Allocated memory was 554.2 MB in the beginning and 682.6 MB in the end (delta: 128.5 MB). Free memory was 489.5 MB in the beginning and 482.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 135.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:45,776 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 27 edges - StatisticsResult: Encoded RCFG 11 locations, 19 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.6 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 299.53 ms. Allocated memory was 514.9 MB in the beginning and 554.2 MB in the end (delta: 39.3 MB). Free memory was 438.3 MB in the beginning and 522.0 MB in the end (delta: -83.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 37.43 ms. Allocated memory is still 554.2 MB. Free memory was 522.0 MB in the beginning and 520.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 23.17 ms. Allocated memory is still 554.2 MB. Free memory was 520.3 MB in the beginning and 518.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * RCFGBuilder took 270.68 ms. Allocated memory is still 554.2 MB. Free memory was 518.7 MB in the beginning and 503.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 82.42 ms. Allocated memory is still 554.2 MB. Free memory was 503.7 MB in the beginning and 497.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 102.66 ms. Allocated memory is still 554.2 MB. Free memory was 496.6 MB in the beginning and 490.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 36693.03 ms. Allocated memory was 554.2 MB in the beginning and 682.6 MB in the end (delta: 128.5 MB). Free memory was 489.5 MB in the beginning and 482.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 135.5 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 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=11occurred 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 0 deterministic, 10 nondeterministic). One nondeterministic module has affine ranking function -1 * z + k and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. One nondeterministic module has affine ranking function k + -1 * z and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function x + -1 * d and consists of 6 locations. One nondeterministic module has affine ranking function x + -1 * d and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.6s and 11 iterations. TraceHistogramMax:2. Analysis of lassos took 34.6s. Construction of modules took 0.3s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 85 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 7. Nontrivial modules had stage [10, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 73 SDtfs, 408 SDslu, 87 SDs, 0 SdLazy, 323 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital34 mio100 ax100 hnf95 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf91 smp100 dnf100 smp100 tf102 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 82ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 52 LassoNonterminationAnalysisSatUnbounded: 6 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 26.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:07:04.890 ----------------------------------------------- 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_pD3VhW/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:07:46.207 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check