/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 11:21:06,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:21:06,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:21:06,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:21:06,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:21:06,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:21:06,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:21:06,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:21:06,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:21:06,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:21:06,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:21:06,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:21:06,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:21:06,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:21:06,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:21:06,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:21:06,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:21:06,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:21:06,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:21:06,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:21:06,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:21:06,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:21:06,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:21:06,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:21:06,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:21:06,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:21:06,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:21:06,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:21:06,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:21:06,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:21:06,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:21:06,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:21:06,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:21:06,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:21:06,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:21:06,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:21:06,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:21:06,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:21:06,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:21:06,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:21:06,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:21:06,593 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:21:06,607 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:21:06,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:21:06,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:21:06,609 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:21:06,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:21:06,609 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:21:06,609 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:21:06,609 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:21:06,610 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:21:06,610 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:21:06,610 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:21:06,610 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:21:06,610 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:21:06,610 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:21:06,611 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:06,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:21:06,611 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:21:06,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:21:06,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:21:06,611 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:21:06,612 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:21:06,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:21:06,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:21:06,612 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:21:06,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:21:06,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:21:06,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:21:06,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:21:06,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:21:06,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:21:06,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:21:06,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:21:06,798 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:21:06,799 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:21:06,799 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:21:06,857 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_5zle7G/tmp/e39b73df7b2a448ea02239a891422b03/FLAGa82ad6a13 [2020-07-01 11:21:07,202 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:21:07,203 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:21:07,209 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_5zle7G/tmp/e39b73df7b2a448ea02239a891422b03/FLAGa82ad6a13 [2020-07-01 11:21:07,610 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_5zle7G/tmp/e39b73df7b2a448ea02239a891422b03 [2020-07-01 11:21:07,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:21:07,623 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:21:07,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:21:07,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:21:07,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:21:07,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156597bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07, skipping insertion in model container [2020-07-01 11:21:07,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:21:07,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:21:07,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:21:07,876 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:21:07,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:21:07,906 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:21:07,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07 WrapperNode [2020-07-01 11:21:07,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:21:07,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:21:07,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:21:07,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:21:07,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:21:07,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:21:07,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:21:07,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:21:07,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (1/1) ... [2020-07-01 11:21:07,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:21:07,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:21:07,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:21:07,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:21:07,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (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 11:21:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:21:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:21:08,180 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:21:08,181 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 11:21:08,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:21:08 BoogieIcfgContainer [2020-07-01 11:21:08,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:21:08,185 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:21:08,185 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:21:08,187 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:21:08,188 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:21:08" (1/1) ... [2020-07-01 11:21:08,200 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 13 edges [2020-07-01 11:21:08,202 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:21:08,202 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:21:08,203 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:21:08,203 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:21:08,205 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:21:08,206 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:21:08,206 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:21:08,220 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:21:08,236 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:21:08,240 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:21:08,242 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:21:08,254 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 11:21:08,256 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:21:08,257 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:21:08,257 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:21:08,261 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:21:08,262 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:21:08,262 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:21:08,262 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:21:08,262 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:21:08,262 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:21:08,263 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 11:21:08,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:21:08 BasicIcfg [2020-07-01 11:21:08,263 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:21:08,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:21:08,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:21:08,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:21:08,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:21:07" (1/4) ... [2020-07-01 11:21:08,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aa6e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:21:08, skipping insertion in model container [2020-07-01 11:21:08,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (2/4) ... [2020-07-01 11:21:08,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aa6e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:21:08, skipping insertion in model container [2020-07-01 11:21:08,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:21:08" (3/4) ... [2020-07-01 11:21:08,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aa6e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:21:08, skipping insertion in model container [2020-07-01 11:21:08,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:21:08" (4/4) ... [2020-07-01 11:21:08,272 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:21:08,283 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:21:08,289 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:21:08,304 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:21:08,326 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:21:08,327 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:21:08,327 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:21:08,327 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:21:08,327 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:21:08,327 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:21:08,328 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:21:08,328 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:21:08,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:21:08,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:21:08,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:21:08,401 INFO L268 CegarLoopResult]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-07-01 11:21:08,401 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:21:08,402 INFO L271 CegarLoopResult]: At program point L15-2(lines 14 20) the Hoare annotation is: true [2020-07-01 11:21:08,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:21:08 BasicIcfg [2020-07-01 11:21:08,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:21:08,411 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:21:08,411 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:21:08,414 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:21:08,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:21:08,415 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:21:07" (1/5) ... [2020-07-01 11:21:08,416 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13d74fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:21:08, skipping insertion in model container [2020-07-01 11:21:08,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:21:08,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:21:07" (2/5) ... [2020-07-01 11:21:08,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13d74fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:21:08, skipping insertion in model container [2020-07-01 11:21:08,417 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:21:08,417 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:21:08" (3/5) ... [2020-07-01 11:21:08,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13d74fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:21:08, skipping insertion in model container [2020-07-01 11:21:08,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:21:08,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:21:08" (4/5) ... [2020-07-01 11:21:08,418 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13d74fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:21:08, skipping insertion in model container [2020-07-01 11:21:08,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:21:08,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:21:08" (5/5) ... [2020-07-01 11:21:08,420 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:21:08,448 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:21:08,448 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:21:08,448 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:21:08,449 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:21:08,449 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:21:08,449 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:21:08,449 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:21:08,449 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:21:08,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:21:08,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:21:08,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:21:08,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:21:08,476 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:21:08,476 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:21:08,477 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:21:08,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:21:08,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:21:08,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:21:08,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:21:08,478 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:21:08,478 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:21:08,483 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [57] ULTIMATE.startENTRY-->L15-2: Formula: (and (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_main_~y1~0_6) (< 0 v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_gcd_~y2_10) (< 0 v_ULTIMATE.start_main_~y1~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_gcd_~y1_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_5|, ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_10, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_11, ULTIMATE.start_gcd_#in~y2=|v_ULTIMATE.start_gcd_#in~y2_2|, ULTIMATE.start_gcd_#in~y1=|v_ULTIMATE.start_gcd_#in~y1_2|, ULTIMATE.start_gcd_#res=|v_ULTIMATE.start_gcd_#res_6|, ULTIMATE.start_main_~y1~0=v_ULTIMATE.start_main_~y1~0_6, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y2~0=v_ULTIMATE.start_main_~y2~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_gcd_~y2, ULTIMATE.start_gcd_~y1, ULTIMATE.start_gcd_#in~y2, ULTIMATE.start_gcd_#in~y1, ULTIMATE.start_gcd_#res, ULTIMATE.start_main_~y1~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y2~0] 5#L15-2true [2020-07-01 11:21:08,483 INFO L796 eck$LassoCheckResult]: Loop: 5#L15-2true [51] L15-2-->L15: Formula: (> v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 3#L15true [48] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_gcd_~y2_6 (+ (* v_ULTIMATE.start_gcd_~y1_7 (- 1)) v_ULTIMATE.start_gcd_~y2_7)) (>= v_ULTIMATE.start_gcd_~y2_7 v_ULTIMATE.start_gcd_~y1_7)) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_7, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_6, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y2] 5#L15-2true [2020-07-01 11:21:08,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:08,490 INFO L82 PathProgramCache]: Analyzing trace with hash 88, now seen corresponding path program 1 times [2020-07-01 11:21:08,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:08,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931777822] [2020-07-01 11:21:08,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:08,576 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:08,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:08,577 INFO L82 PathProgramCache]: Analyzing trace with hash 2590, now seen corresponding path program 1 times [2020-07-01 11:21:08,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:08,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566591630] [2020-07-01 11:21:08,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:08,594 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:08,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:08,596 INFO L82 PathProgramCache]: Analyzing trace with hash 86197, now seen corresponding path program 1 times [2020-07-01 11:21:08,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:08,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981738091] [2020-07-01 11:21:08,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:08,617 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:08,704 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:08,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:08,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:08,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:08,706 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:21:08,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:08,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:08,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:08,706 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:21:08,706 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:08,707 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:08,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:08,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:08,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:08,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:08,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:08,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:08,902 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:08,903 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 11:21:08,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:08,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:08,916 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:21:08,916 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 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 11:21:08,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:08,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:08,953 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:21:08,954 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_gcd_#res=0} Honda state: {ULTIMATE.start_gcd_#res=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 11:21:08,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:08,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:08,991 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:21:08,991 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:21:09,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:09,024 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:21:09,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:21:09,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:09,345 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:21:09,348 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:09,348 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:09,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:09,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:09,349 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:21:09,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:09,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:09,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:09,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:21:09,349 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:09,350 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:09,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:09,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:09,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:09,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:09,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:09,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:09,485 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:09,490 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:09,495 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 11:21:09,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:09,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:09,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:09,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:09,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:09,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:09,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:09,504 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:09,537 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 11:21:09,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:09,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:09,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:09,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:09,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:09,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:09,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:09,543 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:09,577 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 11:21:09,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:09,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:09,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:09,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:09,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:09,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:09,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:09,583 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 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 11:21:09,617 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 11:21:09,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:09,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:09,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:09,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:09,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:09,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:09,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:09,623 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 11:21:09,657 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 11:21:09,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:09,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:09,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:09,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:09,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:21:09,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:21:09,683 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:21:09,701 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-07-01 11:21:09,701 INFO L444 ModelExtractionUtils]: 14 out of 22 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 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 11:21:09,709 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:21:09,713 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:21:09,714 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:21:09,715 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_gcd_~y2, ULTIMATE.start_gcd_~y1) = 1*ULTIMATE.start_gcd_~y2 - 1*ULTIMATE.start_gcd_~y1 Supporting invariants [1*ULTIMATE.start_gcd_~y1 - 1 >= 0] [2020-07-01 11:21:09,752 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:21:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:09,817 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:21:09,819 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:09,831 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:21:09,832 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:09,855 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 11:21:09,906 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:21:09,912 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:21:09,914 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:21:10,039 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 15 states and 29 transitions. Complement of second has 11 states. [2020-07-01 11:21:10,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 11:21:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:21:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2020-07-01 11:21:10,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:21:10,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:10,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:21:10,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:10,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:21:10,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:10,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 29 transitions. [2020-07-01 11:21:10,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:21:10,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 9 states and 15 transitions. [2020-07-01 11:21:10,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 11:21:10,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 11:21:10,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. [2020-07-01 11:21:10,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:21:10,063 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-07-01 11:21:10,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. [2020-07-01 11:21:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-07-01 11:21:10,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 11:21:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2020-07-01 11:21:10,094 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-07-01 11:21:10,094 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-07-01 11:21:10,095 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:21:10,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 14 transitions. [2020-07-01 11:21:10,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:21:10,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:21:10,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:21:10,096 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:21:10,096 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:21:10,097 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY [57] ULTIMATE.startENTRY-->L15-2: Formula: (and (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_main_~y1~0_6) (< 0 v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_gcd_~y2_10) (< 0 v_ULTIMATE.start_main_~y1~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_gcd_~y1_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_5|, ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_10, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_11, ULTIMATE.start_gcd_#in~y2=|v_ULTIMATE.start_gcd_#in~y2_2|, ULTIMATE.start_gcd_#in~y1=|v_ULTIMATE.start_gcd_#in~y1_2|, ULTIMATE.start_gcd_#res=|v_ULTIMATE.start_gcd_#res_6|, ULTIMATE.start_main_~y1~0=v_ULTIMATE.start_main_~y1~0_6, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y2~0=v_ULTIMATE.start_main_~y2~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_gcd_~y2, ULTIMATE.start_gcd_~y1, ULTIMATE.start_gcd_#in~y2, ULTIMATE.start_gcd_#in~y1, ULTIMATE.start_gcd_#res, ULTIMATE.start_main_~y1~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y2~0] 77#L15-2 [52] L15-2-->L15: Formula: (< v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 72#L15 [33] L15-->L15-2: Formula: (and (< v_ULTIMATE.start_gcd_~y2_5 v_ULTIMATE.start_gcd_~y1_6) (= v_ULTIMATE.start_gcd_~y1_5 (+ v_ULTIMATE.start_gcd_~y1_6 (* v_ULTIMATE.start_gcd_~y2_5 (- 1))))) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_5, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_6} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_5, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_5} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y1] 73#L15-2 [2020-07-01 11:21:10,097 INFO L796 eck$LassoCheckResult]: Loop: 73#L15-2 [51] L15-2-->L15: Formula: (> v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 78#L15 [48] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_gcd_~y2_6 (+ (* v_ULTIMATE.start_gcd_~y1_7 (- 1)) v_ULTIMATE.start_gcd_~y2_7)) (>= v_ULTIMATE.start_gcd_~y2_7 v_ULTIMATE.start_gcd_~y1_7)) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_7, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_6, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y2] 73#L15-2 [2020-07-01 11:21:10,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:10,097 INFO L82 PathProgramCache]: Analyzing trace with hash 86213, now seen corresponding path program 1 times [2020-07-01 11:21:10,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:10,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296785049] [2020-07-01 11:21:10,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:10,111 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:10,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:10,112 INFO L82 PathProgramCache]: Analyzing trace with hash 2590, now seen corresponding path program 2 times [2020-07-01 11:21:10,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:10,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637190897] [2020-07-01 11:21:10,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:10,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:10,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash 82852322, now seen corresponding path program 1 times [2020-07-01 11:21:10,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:10,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513854193] [2020-07-01 11:21:10,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:10,135 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:10,206 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:10,206 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:10,207 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:10,207 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:10,207 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:21:10,207 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:10,207 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:10,207 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:10,207 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:21:10,207 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:10,208 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:10,210 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 11:21:10,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,351 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:10,351 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 11:21:10,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:10,358 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:21:10,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:21:10,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:10,755 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:21:10,758 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:10,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:10,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:10,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:10,759 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:21:10,759 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:10,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:10,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:10,760 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:21:10,760 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:10,760 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:10,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:10,872 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:10,872 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:10,876 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 11:21:10,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:10,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:10,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:10,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:10,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:10,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:10,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:10,881 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:10,913 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 11:21:10,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:10,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:10,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:10,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:10,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:21:10,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:21:10,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:21:10,965 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 11:21:10,965 INFO L444 ModelExtractionUtils]: 16 out of 22 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:10,971 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:21:10,975 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:21:10,975 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:21:10,975 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_gcd_~y2, ULTIMATE.start_gcd_~y1) = 1*ULTIMATE.start_gcd_~y2 - 1*ULTIMATE.start_gcd_~y1 Supporting invariants [1*ULTIMATE.start_gcd_~y1 - 1 >= 0] [2020-07-01 11:21:11,009 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:21:11,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:11,039 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:21:11,040 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:11,054 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:21:11,055 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:11,068 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 11:21:11,101 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:21:11,101 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 11:21:11,101 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-07-01 11:21:11,188 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 51 states and 84 transitions. Complement of second has 37 states. [2020-07-01 11:21:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 11:21:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:21:11,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 21 transitions. [2020-07-01 11:21:11,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:21:11,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:11,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:21:11,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:11,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:21:11,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:11,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 84 transitions. [2020-07-01 11:21:11,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:21:11,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 13 states and 19 transitions. [2020-07-01 11:21:11,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 11:21:11,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 11:21:11,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2020-07-01 11:21:11,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:21:11,197 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-07-01 11:21:11,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2020-07-01 11:21:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2020-07-01 11:21:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:21:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-01 11:21:11,198 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 11:21:11,199 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 11:21:11,199 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:21:11,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-07-01 11:21:11,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:21:11,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:21:11,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:21:11,200 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:21:11,200 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:21:11,200 INFO L794 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY [57] ULTIMATE.startENTRY-->L15-2: Formula: (and (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_main_~y1~0_6) (< 0 v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_gcd_~y2_10) (< 0 v_ULTIMATE.start_main_~y1~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_gcd_~y1_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_5|, ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_10, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_11, ULTIMATE.start_gcd_#in~y2=|v_ULTIMATE.start_gcd_#in~y2_2|, ULTIMATE.start_gcd_#in~y1=|v_ULTIMATE.start_gcd_#in~y1_2|, ULTIMATE.start_gcd_#res=|v_ULTIMATE.start_gcd_#res_6|, ULTIMATE.start_main_~y1~0=v_ULTIMATE.start_main_~y1~0_6, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y2~0=v_ULTIMATE.start_main_~y2~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_gcd_~y2, ULTIMATE.start_gcd_~y1, ULTIMATE.start_gcd_#in~y2, ULTIMATE.start_gcd_#in~y1, ULTIMATE.start_gcd_#res, ULTIMATE.start_main_~y1~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y2~0] 218#L15-2 [2020-07-01 11:21:11,200 INFO L796 eck$LassoCheckResult]: Loop: 218#L15-2 [52] L15-2-->L15: Formula: (< v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 217#L15 [33] L15-->L15-2: Formula: (and (< v_ULTIMATE.start_gcd_~y2_5 v_ULTIMATE.start_gcd_~y1_6) (= v_ULTIMATE.start_gcd_~y1_5 (+ v_ULTIMATE.start_gcd_~y1_6 (* v_ULTIMATE.start_gcd_~y2_5 (- 1))))) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_5, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_6} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_5, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_5} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y1] 218#L15-2 [2020-07-01 11:21:11,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:11,201 INFO L82 PathProgramCache]: Analyzing trace with hash 88, now seen corresponding path program 2 times [2020-07-01 11:21:11,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:11,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275040451] [2020-07-01 11:21:11,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:11,208 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:11,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:11,208 INFO L82 PathProgramCache]: Analyzing trace with hash 2606, now seen corresponding path program 1 times [2020-07-01 11:21:11,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:11,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754857500] [2020-07-01 11:21:11,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:11,214 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:11,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:11,215 INFO L82 PathProgramCache]: Analyzing trace with hash 86213, now seen corresponding path program 2 times [2020-07-01 11:21:11,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:11,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347828652] [2020-07-01 11:21:11,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:11,226 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:11,261 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:11,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:11,261 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:11,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:11,261 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:21:11,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:11,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:11,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:11,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:21:11,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:11,262 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:11,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,294 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 11:21:11,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,357 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:11,357 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:21:11,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:11,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:11,365 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:21:11,365 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 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 11:21:11,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:11,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:11,418 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:21:11,418 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:11,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:11,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:11,454 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:21:11,454 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:11,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:11,486 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:11,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:21:11,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:11,758 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:21:11,761 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:11,762 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:11,762 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:11,762 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:11,762 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:21:11,762 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:11,762 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:11,762 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:11,762 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:21:11,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:11,763 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:11,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:11,865 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:11,866 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:11,869 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 11:21:11,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:11,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:11,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:11,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:11,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:11,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:11,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:11,874 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 11:21:11,907 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 11:21:11,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:11,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:11,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:11,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:11,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:11,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:11,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:11,912 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 11:21:11,944 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 11:21:11,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:11,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:11,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:11,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:11,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:11,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:11,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:11,949 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 11:21:11,981 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 11:21:11,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:11,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:11,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:11,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:11,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:11,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:11,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:11,987 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 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:12,020 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 11:21:12,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:12,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:12,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:12,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:12,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:21:12,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:21:12,037 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:21:12,056 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-07-01 11:21:12,056 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:12,058 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:21:12,062 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:21:12,062 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:21:12,063 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_gcd_~y1) = 1*ULTIMATE.start_gcd_~y1 Supporting invariants [1*ULTIMATE.start_gcd_~y2 - 1 >= 0] [2020-07-01 11:21:12,094 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:21:12,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:12,120 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:21:12,120 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:12,124 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:21:12,124 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:12,135 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 11:21:12,157 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:21:12,157 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:21:12,157 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-07-01 11:21:12,212 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 17 states and 25 transitions. Complement of second has 10 states. [2020-07-01 11:21:12,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 11:21:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:21:12,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2020-07-01 11:21:12,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:21:12,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:12,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:21:12,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:12,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:21:12,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:12,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 25 transitions. [2020-07-01 11:21:12,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:21:12,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 17 transitions. [2020-07-01 11:21:12,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 11:21:12,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:21:12,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2020-07-01 11:21:12,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:21:12,217 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-07-01 11:21:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2020-07-01 11:21:12,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2020-07-01 11:21:12,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 11:21:12,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2020-07-01 11:21:12,219 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 11:21:12,219 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 11:21:12,219 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:21:12,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2020-07-01 11:21:12,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:21:12,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:21:12,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:21:12,220 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 11:21:12,220 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:21:12,221 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY [57] ULTIMATE.startENTRY-->L15-2: Formula: (and (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_main_~y1~0_6) (< 0 v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_gcd_~y2_10) (< 0 v_ULTIMATE.start_main_~y1~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_gcd_~y1_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_5|, ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_10, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_11, ULTIMATE.start_gcd_#in~y2=|v_ULTIMATE.start_gcd_#in~y2_2|, ULTIMATE.start_gcd_#in~y1=|v_ULTIMATE.start_gcd_#in~y1_2|, ULTIMATE.start_gcd_#res=|v_ULTIMATE.start_gcd_#res_6|, ULTIMATE.start_main_~y1~0=v_ULTIMATE.start_main_~y1~0_6, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y2~0=v_ULTIMATE.start_main_~y2~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_gcd_~y2, ULTIMATE.start_gcd_~y1, ULTIMATE.start_gcd_#in~y2, ULTIMATE.start_gcd_#in~y1, ULTIMATE.start_gcd_#res, ULTIMATE.start_main_~y1~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y2~0] 294#L15-2 [51] L15-2-->L15: Formula: (> v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 291#L15 [48] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_gcd_~y2_6 (+ (* v_ULTIMATE.start_gcd_~y1_7 (- 1)) v_ULTIMATE.start_gcd_~y2_7)) (>= v_ULTIMATE.start_gcd_~y2_7 v_ULTIMATE.start_gcd_~y1_7)) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_7, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_6, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y2] 292#L15-2 [52] L15-2-->L15: Formula: (< v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 289#L15 [2020-07-01 11:21:12,221 INFO L796 eck$LassoCheckResult]: Loop: 289#L15 [33] L15-->L15-2: Formula: (and (< v_ULTIMATE.start_gcd_~y2_5 v_ULTIMATE.start_gcd_~y1_6) (= v_ULTIMATE.start_gcd_~y1_5 (+ v_ULTIMATE.start_gcd_~y1_6 (* v_ULTIMATE.start_gcd_~y2_5 (- 1))))) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_5, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_6} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_5, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_5} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y1] 290#L15-2 [52] L15-2-->L15: Formula: (< v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 289#L15 [2020-07-01 11:21:12,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:12,221 INFO L82 PathProgramCache]: Analyzing trace with hash 2672159, now seen corresponding path program 1 times [2020-07-01 11:21:12,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:12,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316663013] [2020-07-01 11:21:12,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:12,234 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:12,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:12,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2036, now seen corresponding path program 2 times [2020-07-01 11:21:12,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:12,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827359079] [2020-07-01 11:21:12,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:12,241 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:12,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:12,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1727021422, now seen corresponding path program 2 times [2020-07-01 11:21:12,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:12,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992731445] [2020-07-01 11:21:12,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:12,255 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:12,308 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:12,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:12,308 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:12,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:12,308 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:21:12,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:12,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:12,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:12,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso [2020-07-01 11:21:12,309 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:12,309 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:12,310 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 11:21:12,328 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 11:21:12,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,398 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:12,398 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:21:12,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:12,401 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:21:12,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:21:12,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:12,751 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:21:12,753 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:12,754 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:12,754 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:12,754 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:12,754 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:21:12,754 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:12,754 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:12,754 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:12,754 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso [2020-07-01 11:21:12,754 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:12,755 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:12,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:12,844 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:12,844 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:12,847 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 11:21:12,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:12,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:12,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:12,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:12,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:12,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:12,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:12,852 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 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 11:21:12,884 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 11:21:12,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:12,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:12,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:12,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:12,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:12,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:12,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:12,889 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 11:21:12,921 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 11:21:12,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:12,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:12,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:12,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:12,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:12,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:12,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:12,926 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 11:21:12,957 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 11:21:12,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:12,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:12,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:12,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:12,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:12,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:12,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:12,962 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 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 11:21:12,993 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 11:21:12,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:12,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:12,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:12,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:12,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:12,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:12,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:12,998 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 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:13,029 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 11:21:13,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:13,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:13,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:13,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:13,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:21:13,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:21:13,048 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:21:13,061 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-07-01 11:21:13,062 INFO L444 ModelExtractionUtils]: 13 out of 22 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 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:13,066 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:21:13,069 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-07-01 11:21:13,069 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:21:13,069 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_gcd_~y1) = 2*ULTIMATE.start_gcd_~y1 + 1 Supporting invariants [1*ULTIMATE.start_gcd_~y2 - 1 >= 0, 1*ULTIMATE.start_gcd_~y1 >= 0] [2020-07-01 11:21:13,103 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2020-07-01 11:21:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:13,132 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:21:13,133 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:13,161 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:21:13,162 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:13,178 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 11:21:13,213 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:21:13,214 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-07-01 11:21:13,214 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 5 states. [2020-07-01 11:21:13,320 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 5 states. Result 35 states and 45 transitions. Complement of second has 24 states. [2020-07-01 11:21:13,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:21:13,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:21:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2020-07-01 11:21:13,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:21:13,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:13,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 11:21:13,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:13,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:21:13,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:13,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2020-07-01 11:21:13,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 11:21:13,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 18 states and 24 transitions. [2020-07-01 11:21:13,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:21:13,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:21:13,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2020-07-01 11:21:13,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:21:13,327 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-07-01 11:21:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2020-07-01 11:21:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 7. [2020-07-01 11:21:13,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:21:13,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 11:21:13,329 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:21:13,329 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:21:13,329 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:21:13,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 11:21:13,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:21:13,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:21:13,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:21:13,330 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 11:21:13,330 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:21:13,330 INFO L794 eck$LassoCheckResult]: Stem: 415#ULTIMATE.startENTRY [57] ULTIMATE.startENTRY-->L15-2: Formula: (and (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_main_~y1~0_6) (< 0 v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_gcd_~y2_10) (< 0 v_ULTIMATE.start_main_~y1~0_6) (= |v_ULTIMATE.start_gcd_#in~y2_2| v_ULTIMATE.start_main_~y2~0_6) (= |v_ULTIMATE.start_gcd_#in~y1_2| v_ULTIMATE.start_gcd_~y1_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_5|, ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_10, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_11, ULTIMATE.start_gcd_#in~y2=|v_ULTIMATE.start_gcd_#in~y2_2|, ULTIMATE.start_gcd_#in~y1=|v_ULTIMATE.start_gcd_#in~y1_2|, ULTIMATE.start_gcd_#res=|v_ULTIMATE.start_gcd_#res_6|, ULTIMATE.start_main_~y1~0=v_ULTIMATE.start_main_~y1~0_6, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y2~0=v_ULTIMATE.start_main_~y2~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_gcd_~y2, ULTIMATE.start_gcd_~y1, ULTIMATE.start_gcd_#in~y2, ULTIMATE.start_gcd_#in~y1, ULTIMATE.start_gcd_#res, ULTIMATE.start_main_~y1~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y2~0] 416#L15-2 [51] L15-2-->L15: Formula: (> v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 417#L15 [48] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_gcd_~y2_6 (+ (* v_ULTIMATE.start_gcd_~y1_7 (- 1)) v_ULTIMATE.start_gcd_~y2_7)) (>= v_ULTIMATE.start_gcd_~y2_7 v_ULTIMATE.start_gcd_~y1_7)) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_7, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_6, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y2] 418#L15-2 [52] L15-2-->L15: Formula: (< v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 412#L15 [2020-07-01 11:21:13,331 INFO L796 eck$LassoCheckResult]: Loop: 412#L15 [33] L15-->L15-2: Formula: (and (< v_ULTIMATE.start_gcd_~y2_5 v_ULTIMATE.start_gcd_~y1_6) (= v_ULTIMATE.start_gcd_~y1_5 (+ v_ULTIMATE.start_gcd_~y1_6 (* v_ULTIMATE.start_gcd_~y2_5 (- 1))))) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_5, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_6} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_5, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_5} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y1] 413#L15-2 [51] L15-2-->L15: Formula: (> v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 417#L15 [48] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_gcd_~y2_6 (+ (* v_ULTIMATE.start_gcd_~y1_7 (- 1)) v_ULTIMATE.start_gcd_~y2_7)) (>= v_ULTIMATE.start_gcd_~y2_7 v_ULTIMATE.start_gcd_~y1_7)) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_7, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_6, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_7} AuxVars[] AssignedVars[ULTIMATE.start_gcd_~y2] 418#L15-2 [52] L15-2-->L15: Formula: (< v_ULTIMATE.start_gcd_~y2_4 v_ULTIMATE.start_gcd_~y1_4) InVars {ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} OutVars{ULTIMATE.start_gcd_~y2=v_ULTIMATE.start_gcd_~y2_4, ULTIMATE.start_gcd_~y1=v_ULTIMATE.start_gcd_~y1_4} AuxVars[] AssignedVars[] 412#L15 [2020-07-01 11:21:13,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:13,331 INFO L82 PathProgramCache]: Analyzing trace with hash 2672159, now seen corresponding path program 2 times [2020-07-01 11:21:13,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:13,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236096043] [2020-07-01 11:21:13,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:13,343 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:13,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:13,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1957175, now seen corresponding path program 1 times [2020-07-01 11:21:13,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:13,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829347337] [2020-07-01 11:21:13,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:13,352 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:13,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1810209707, now seen corresponding path program 3 times [2020-07-01 11:21:13,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:21:13,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467014113] [2020-07-01 11:21:13,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:21:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:21:13,367 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:21:13,398 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:13,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:13,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:13,399 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:13,399 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:21:13,399 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:21:13,399 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:13,399 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:13,399 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:21:13,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:13,400 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:13,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:13,439 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:13,439 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:21:13,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:21:13,443 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:21:13,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:21:13,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:21:13,813 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:21:13,815 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:21:13,815 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:21:13,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:21:13,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:21:13,816 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:21:13,816 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:13,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:21:13,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:21:13,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:21:13,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:21:13,816 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:21:13,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:21:13,850 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:21:13,850 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:21:13,853 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 11:21:13,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:21:13,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:21:13,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:21:13,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:21:13,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:21:13,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:21:13,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:21:13,861 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:21:13,864 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:21:13,864 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:21:13,869 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:21:13,869 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:21:13,870 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:21:13,870 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_gcd_~y1) = 1*ULTIMATE.start_gcd_~y1 Supporting invariants [] [2020-07-01 11:21:13,899 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:21:13,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:21:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:13,916 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:21:13,916 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:13,935 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:21:13,935 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:21:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:14,013 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:21:14,014 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:21:14,084 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:21:14,084 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:21:14,121 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 11:21:14,121 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 9 loop predicates [2020-07-01 11:21:14,121 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand 5 states. [2020-07-01 11:21:14,449 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 57 states and 81 transitions. Complement of second has 41 states. [2020-07-01 11:21:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 7 non-accepting loop states 3 accepting loop states [2020-07-01 11:21:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:21:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2020-07-01 11:21:14,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 20 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:21:14,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:14,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 20 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 11:21:14,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:14,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 20 transitions. Stem has 4 letters. Loop has 8 letters. [2020-07-01 11:21:14,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:21:14,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 81 transitions. [2020-07-01 11:21:14,456 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:21:14,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2020-07-01 11:21:14,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:21:14,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:21:14,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:21:14,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:21:14,456 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:21:14,457 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:21:14,457 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:21:14,457 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 11:21:14,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:21:14,457 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:21:14,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:21:14,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:21:14 BasicIcfg [2020-07-01 11:21:14,464 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:21:14,466 INFO L168 Benchmark]: Toolchain (without parser) took 6843.17 ms. Allocated memory was 649.6 MB in the beginning and 775.4 MB in the end (delta: 125.8 MB). Free memory was 561.7 MB in the beginning and 632.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:21:14,467 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:21:14,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.91 ms. Allocated memory was 649.6 MB in the beginning and 687.3 MB in the end (delta: 37.7 MB). Free memory was 561.7 MB in the beginning and 650.8 MB in the end (delta: -89.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:21:14,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.65 ms. Allocated memory is still 687.3 MB. Free memory was 650.8 MB in the beginning and 648.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:21:14,469 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 ms. Allocated memory is still 687.3 MB. Free memory is still 648.1 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:21:14,470 INFO L168 Benchmark]: RCFGBuilder took 223.59 ms. Allocated memory is still 687.3 MB. Free memory was 646.7 MB in the beginning and 632.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:21:14,470 INFO L168 Benchmark]: BlockEncodingV2 took 78.70 ms. Allocated memory is still 687.3 MB. Free memory was 632.2 MB in the beginning and 625.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:21:14,471 INFO L168 Benchmark]: TraceAbstraction took 145.55 ms. Allocated memory is still 687.3 MB. Free memory was 624.3 MB in the beginning and 616.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:21:14,471 INFO L168 Benchmark]: BuchiAutomizer took 6053.38 ms. Allocated memory was 687.3 MB in the beginning and 775.4 MB in the end (delta: 88.1 MB). Free memory was 616.1 MB in the beginning and 632.6 MB in the end (delta: -16.5 MB). Peak memory consumption was 71.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:21:14,475 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 13 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 282.91 ms. Allocated memory was 649.6 MB in the beginning and 687.3 MB in the end (delta: 37.7 MB). Free memory was 561.7 MB in the beginning and 650.8 MB in the end (delta: -89.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.65 ms. Allocated memory is still 687.3 MB. Free memory was 650.8 MB in the beginning and 648.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.53 ms. Allocated memory is still 687.3 MB. Free memory is still 648.1 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 223.59 ms. Allocated memory is still 687.3 MB. Free memory was 646.7 MB in the beginning and 632.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 78.70 ms. Allocated memory is still 687.3 MB. Free memory was 632.2 MB in the beginning and 625.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 145.55 ms. Allocated memory is still 687.3 MB. Free memory was 624.3 MB in the beginning and 616.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 6053.38 ms. Allocated memory was 687.3 MB in the beginning and 775.4 MB in the end (delta: 88.1 MB). Free memory was 616.1 MB in the beginning and 632.6 MB in the end (delta: -16.5 MB). Peak memory consumption was 71.6 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function y2 + -1 * y1 and consists of 7 locations. One nondeterministic module has affine ranking function y2 + -1 * y1 and consists of 8 locations. One nondeterministic module has affine ranking function y1 and consists of 6 locations. One nondeterministic module has affine ranking function 2 * y1 + 1 and consists of 7 locations. One nondeterministic module has affine ranking function y1 and consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 8 SDtfs, 69 SDslu, 0 SDs, 0 SdLazy, 162 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf91 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq175 hnf91 smp100 dnf100 smp100 tf101 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 59ms VariablesStem: 6 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:21:04.386 ----------------------------------------------- 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_5zle7G/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:21:14.708 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check