/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 10:51:51,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:51:51,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:51:51,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:51:51,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:51:51,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:51:51,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:51:51,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:51:51,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:51:51,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:51:51,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:51:51,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:51:51,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:51:51,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:51:51,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:51:51,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:51:51,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:51:51,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:51:51,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:51:51,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:51:51,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:51:51,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:51:51,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:51:51,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:51:51,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:51:51,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:51:51,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:51:51,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:51:51,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:51:51,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:51:51,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:51:51,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:51:51,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:51:51,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:51:51,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:51:51,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:51:51,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:51:51,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:51:51,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:51:51,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:51:51,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:51:51,623 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:51:51,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:51:51,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:51:51,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:51:51,639 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:51:51,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:51:51,639 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:51:51,639 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:51:51,640 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:51:51,640 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:51:51,640 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:51:51,640 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:51:51,640 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:51:51,640 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:51:51,641 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:51:51,641 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:51,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:51:51,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:51:51,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:51:51,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:51:51,642 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:51:51,642 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:51:51,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:51:51,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:51:51,642 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:51:51,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:51:51,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:51:51,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:51:51,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:51:51,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:51:51,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:51:51,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:51:51,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:51:51,825 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:51:51,825 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:51:51,826 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:51:51,891 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_ji19Lz/tmp/7f2d01c9977740738af91a2b4ea1479e/FLAGb685f9a08 [2020-07-01 10:51:52,245 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:51:52,245 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:51:52,252 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_ji19Lz/tmp/7f2d01c9977740738af91a2b4ea1479e/FLAGb685f9a08 [2020-07-01 10:51:52,662 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_ji19Lz/tmp/7f2d01c9977740738af91a2b4ea1479e [2020-07-01 10:51:52,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:51:52,675 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:51:52,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:51:52,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:51:52,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:51:52,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:52,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6d5f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52, skipping insertion in model container [2020-07-01 10:51:52,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:52,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:51:52,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:51:52,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:51:52,943 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:51:52,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:51:52,976 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:51:52,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52 WrapperNode [2020-07-01 10:51:52,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:51:52,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:51:52,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:51:52,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:51:52,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:52,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:53,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:51:53,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:51:53,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:51:53,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:51:53,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:53,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:53,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:53,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:53,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:53,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:53,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (1/1) ... [2020-07-01 10:51:53,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:51:53,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:51:53,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:51:53,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:51:53,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (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 10:51:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:51:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:51:53,280 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:51:53,280 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 10:51:53,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:51:53 BoogieIcfgContainer [2020-07-01 10:51:53,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:51:53,284 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:51:53,284 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:51:53,286 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:51:53,287 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:51:53" (1/1) ... [2020-07-01 10:51:53,300 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-07-01 10:51:53,302 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:51:53,303 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:51:53,303 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:51:53,304 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:51:53,305 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:51:53,306 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:51:53,306 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:51:53,322 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:51:53,338 INFO L200 BlockEncoder]: SBE split 4 edges [2020-07-01 10:51:53,343 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-07-01 10:51:53,344 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:51:53,359 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 10:51:53,361 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 10:51:53,362 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:51:53,362 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:51:53,363 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:51:53,363 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:51:53,363 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 12 edges [2020-07-01 10:51:53,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:51:53 BasicIcfg [2020-07-01 10:51:53,364 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:51:53,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:51:53,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:51:53,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:51:53,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:51:52" (1/4) ... [2020-07-01 10:51:53,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc35cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:51:53, skipping insertion in model container [2020-07-01 10:51:53,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (2/4) ... [2020-07-01 10:51:53,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc35cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:51:53, skipping insertion in model container [2020-07-01 10:51:53,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:51:53" (3/4) ... [2020-07-01 10:51:53,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc35cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:51:53, skipping insertion in model container [2020-07-01 10:51:53,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:51:53" (4/4) ... [2020-07-01 10:51:53,374 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:51:53,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:51:53,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:51:53,404 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:51:53,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:51:53,428 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:51:53,428 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:51:53,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:51:53,428 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:51:53,428 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:51:53,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:51:53,429 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:51:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-07-01 10:51:53,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:51:53,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-07-01 10:51:53,507 INFO L268 CegarLoopResult]: For program point L20-3(lines 20 27) no Hoare annotation was computed. [2020-07-01 10:51:53,507 INFO L271 CegarLoopResult]: At program point L17-2(lines 17 30) the Hoare annotation is: true [2020-07-01 10:51:53,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:51:53,508 INFO L271 CegarLoopResult]: At program point L22-2(lines 22 25) the Hoare annotation is: true [2020-07-01 10:51:53,508 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2020-07-01 10:51:53,508 INFO L271 CegarLoopResult]: At program point L20-2(lines 20 27) the Hoare annotation is: true [2020-07-01 10:51:53,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:51:53 BasicIcfg [2020-07-01 10:51:53,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:51:53,517 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:51:53,518 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:51:53,521 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:51:53,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:51:53,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:51:52" (1/5) ... [2020-07-01 10:51:53,523 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29f7f666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:51:53, skipping insertion in model container [2020-07-01 10:51:53,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:51:53,523 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:51:52" (2/5) ... [2020-07-01 10:51:53,523 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29f7f666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:51:53, skipping insertion in model container [2020-07-01 10:51:53,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:51:53,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:51:53" (3/5) ... [2020-07-01 10:51:53,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29f7f666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:51:53, skipping insertion in model container [2020-07-01 10:51:53,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:51:53,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:51:53" (4/5) ... [2020-07-01 10:51:53,525 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29f7f666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:51:53, skipping insertion in model container [2020-07-01 10:51:53,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:51:53,525 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:51:53" (5/5) ... [2020-07-01 10:51:53,526 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:51:53,554 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:51:53,554 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:51:53,554 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:51:53,554 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:51:53,554 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:51:53,555 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:51:53,555 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:51:53,555 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:51:53,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 10:51:53,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:51:53,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:51:53,577 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:51:53,582 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:51:53,583 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:51:53,583 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:51:53,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 10:51:53,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:51:53,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:51:53,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:51:53,584 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:51:53,584 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:51:53,589 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-07-01 10:51:53,590 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 6#L20-2true [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 5#L20-3true [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-07-01 10:51:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:53,596 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-07-01 10:51:53,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:53,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412782502] [2020-07-01 10:51:53,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:53,678 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:53,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:53,680 INFO L82 PathProgramCache]: Analyzing trace with hash 76030, now seen corresponding path program 1 times [2020-07-01 10:51:53,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:53,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154239194] [2020-07-01 10:51:53,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:53,701 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:53,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:53,703 INFO L82 PathProgramCache]: Analyzing trace with hash 2399728, now seen corresponding path program 1 times [2020-07-01 10:51:53,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:53,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443871542] [2020-07-01 10:51:53,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:53,719 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:53,788 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:53,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:53,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:53,790 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:53,790 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:51:53,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:53,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:53,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:53,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:51:53,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:53,791 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:53,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:53,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:53,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:53,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:53,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:53,946 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:53,946 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 10:51:53,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:53,953 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:53,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:51:53,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:54,029 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:51:54,032 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:54,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:54,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:54,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:54,032 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:51:54,033 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:54,033 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:54,033 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:54,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:51:54,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:54,033 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:54,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,123 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:54,128 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:54,132 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 10:51:54,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:54,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:54,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:54,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:54,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:54,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:54,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:54,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:51:54,150 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:51:54,151 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:54,155 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:51:54,155 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:51:54,156 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:51:54,157 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 10:51:54,190 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:51:54,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:54,229 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:51:54,230 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:54,243 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:51:54,244 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:54,264 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 10:51:54,298 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:51:54,304 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 10:51:54,305 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states. Second operand 3 states. [2020-07-01 10:51:54,382 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states.. Second operand 3 states. Result 20 states and 45 transitions. Complement of second has 6 states. [2020-07-01 10:51:54,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 10:51:54,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:51:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-07-01 10:51:54,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 10:51:54,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:54,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 10:51:54,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:54,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 10:51:54,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:54,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 45 transitions. [2020-07-01 10:51:54,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-07-01 10:51:54,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 39 transitions. [2020-07-01 10:51:54,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-07-01 10:51:54,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-07-01 10:51:54,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 39 transitions. [2020-07-01 10:51:54,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:51:54,406 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 39 transitions. [2020-07-01 10:51:54,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 39 transitions. [2020-07-01 10:51:54,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-07-01 10:51:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-01 10:51:54,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 35 transitions. [2020-07-01 10:51:54,435 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 35 transitions. [2020-07-01 10:51:54,435 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 35 transitions. [2020-07-01 10:51:54,435 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:51:54,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 35 transitions. [2020-07-01 10:51:54,436 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-07-01 10:51:54,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:51:54,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:51:54,437 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 10:51:54,437 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:51:54,438 INFO L794 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 66#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 67#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 74#L22-2 [2020-07-01 10:51:54,438 INFO L796 eck$LassoCheckResult]: Loop: 74#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 77#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 73#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 74#L22-2 [2020-07-01 10:51:54,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:54,438 INFO L82 PathProgramCache]: Analyzing trace with hash 77412, now seen corresponding path program 1 times [2020-07-01 10:51:54,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:54,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599911796] [2020-07-01 10:51:54,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:54,453 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:54,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:54,453 INFO L82 PathProgramCache]: Analyzing trace with hash 96879, now seen corresponding path program 1 times [2020-07-01 10:51:54,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:54,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120899263] [2020-07-01 10:51:54,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:54,463 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:54,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:54,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1988719316, now seen corresponding path program 1 times [2020-07-01 10:51:54,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:54,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219132303] [2020-07-01 10:51:54,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:54,482 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:54,519 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:54,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:54,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:54,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:54,519 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:51:54,519 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:54,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:54,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:54,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:51:54,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:54,520 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:54,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:54,664 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:54,664 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:54,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:54,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:54,676 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:54,676 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:54,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:54,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:54,717 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:54,717 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:54,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:54,750 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:54,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:51:54,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:55,013 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:51:55,016 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:55,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:55,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:55,017 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:55,017 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:51:55,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:55,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:55,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:55,017 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:51:55,017 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:55,018 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:55,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,092 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:55,092 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:55,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:51:55,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:55,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:55,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:55,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:55,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:51:55,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:51:55,106 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 10:51:55,138 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 10:51:55,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:55,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:55,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:55,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:55,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:51:55,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:51:55,148 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 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 10:51:55,180 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 10:51:55,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:55,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:55,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:55,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:55,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:55,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:55,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:55,188 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:51:55,193 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:51:55,193 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:55,195 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:51:55,196 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:51:55,196 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:51:55,196 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 10:51:55,226 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:51:55,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:55,253 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:51:55,254 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:55,260 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:51:55,260 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:55,272 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 10:51:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:55,278 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:51:55,279 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:55,300 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:51:55,300 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 10:51:55,300 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 35 transitions. cyclomatic complexity: 22 Second operand 4 states. [2020-07-01 10:51:55,362 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 35 transitions. cyclomatic complexity: 22. Second operand 4 states. Result 37 states and 85 transitions. Complement of second has 6 states. [2020-07-01 10:51:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 10:51:55,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 10:51:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-01 10:51:55,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 10:51:55,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:55,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 10:51:55,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:55,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 10:51:55,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:55,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 85 transitions. [2020-07-01 10:51:55,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2020-07-01 10:51:55,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 76 transitions. [2020-07-01 10:51:55,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-07-01 10:51:55,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-07-01 10:51:55,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 76 transitions. [2020-07-01 10:51:55,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:51:55,371 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 76 transitions. [2020-07-01 10:51:55,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 76 transitions. [2020-07-01 10:51:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-07-01 10:51:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-01 10:51:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 74 transitions. [2020-07-01 10:51:55,375 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 74 transitions. [2020-07-01 10:51:55,375 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 74 transitions. [2020-07-01 10:51:55,376 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 10:51:55,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 74 transitions. [2020-07-01 10:51:55,377 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-07-01 10:51:55,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:51:55,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:51:55,378 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 10:51:55,378 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:51:55,378 INFO L794 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 173#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 171#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 177#L22-2 [2020-07-01 10:51:55,378 INFO L796 eck$LassoCheckResult]: Loop: 177#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 190#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 176#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 177#L22-2 [2020-07-01 10:51:55,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:55,379 INFO L82 PathProgramCache]: Analyzing trace with hash 77411, now seen corresponding path program 1 times [2020-07-01 10:51:55,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:55,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279970802] [2020-07-01 10:51:55,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:55,392 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:55,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:55,392 INFO L82 PathProgramCache]: Analyzing trace with hash 96879, now seen corresponding path program 2 times [2020-07-01 10:51:55,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:55,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412304116] [2020-07-01 10:51:55,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:55,401 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:55,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:55,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1988749107, now seen corresponding path program 1 times [2020-07-01 10:51:55,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:55,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150278314] [2020-07-01 10:51:55,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:55,418 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:55,449 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:55,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:55,449 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:55,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:55,449 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:51:55,450 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:55,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:55,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:55,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:51:55,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:55,450 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:55,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,517 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:55,517 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:55,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:55,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:55,539 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:55,539 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:55,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:55,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:55,576 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:55,576 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:55,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:55,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:55,613 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:55,613 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:55,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:55,647 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 10:51:55,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:51:55,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:55,907 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:51:55,910 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:55,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:55,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:55,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:55,911 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:51:55,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:55,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:55,911 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:55,911 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:51:55,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:55,911 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:55,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:55,991 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:55,991 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:55,994 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 10:51:55,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:55,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:55,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:55,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:55,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:55,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:55,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:56,000 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:56,034 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 10:51:56,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:56,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:56,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:56,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:56,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:56,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:56,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:56,040 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:56,074 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 10:51:56,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:56,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:56,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:56,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:56,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:51:56,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:51:56,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:56,118 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 10:51:56,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:56,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:56,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:56,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:56,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:56,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:56,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:56,125 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:51:56,130 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 10:51:56,130 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:51:56,134 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:51:56,134 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:51:56,134 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:51:56,134 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 10:51:56,165 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:51:56,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:56,183 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:51:56,183 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:56,187 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:51:56,188 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:56,195 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 10:51:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:56,199 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:51:56,199 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:56,219 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:51:56,219 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 10:51:56,219 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 31 states and 74 transitions. cyclomatic complexity: 47 Second operand 4 states. [2020-07-01 10:51:56,276 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 31 states and 74 transitions. cyclomatic complexity: 47. Second operand 4 states. Result 79 states and 195 transitions. Complement of second has 6 states. [2020-07-01 10:51:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 10:51:56,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 10:51:56,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-01 10:51:56,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 10:51:56,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:56,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 10:51:56,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:56,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 10:51:56,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:56,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 195 transitions. [2020-07-01 10:51:56,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2020-07-01 10:51:56,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 62 states and 152 transitions. [2020-07-01 10:51:56,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-07-01 10:51:56,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-07-01 10:51:56,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 152 transitions. [2020-07-01 10:51:56,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:51:56,287 INFO L688 BuchiCegarLoop]: Abstraction has 62 states and 152 transitions. [2020-07-01 10:51:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 152 transitions. [2020-07-01 10:51:56,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 23. [2020-07-01 10:51:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-01 10:51:56,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 55 transitions. [2020-07-01 10:51:56,291 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 55 transitions. [2020-07-01 10:51:56,291 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 55 transitions. [2020-07-01 10:51:56,291 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 10:51:56,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 55 transitions. [2020-07-01 10:51:56,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 10:51:56,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:51:56,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:51:56,293 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 10:51:56,293 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-07-01 10:51:56,294 INFO L794 eck$LassoCheckResult]: Stem: 331#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 332#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 330#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 340#L22-2 [71] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 341#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 338#L22-3 [2020-07-01 10:51:56,294 INFO L796 eck$LassoCheckResult]: Loop: 338#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 335#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 333#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 327#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 328#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 344#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 338#L22-3 [2020-07-01 10:51:56,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:56,294 INFO L82 PathProgramCache]: Analyzing trace with hash 74395202, now seen corresponding path program 1 times [2020-07-01 10:51:56,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:56,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466565748] [2020-07-01 10:51:56,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:56,310 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:56,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1800878038, now seen corresponding path program 1 times [2020-07-01 10:51:56,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:56,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601327081] [2020-07-01 10:51:56,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:56,323 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:56,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:56,324 INFO L82 PathProgramCache]: Analyzing trace with hash 384991659, now seen corresponding path program 1 times [2020-07-01 10:51:56,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:56,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829050874] [2020-07-01 10:51:56,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:56,346 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:56,383 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:56,383 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:56,383 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:56,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:56,384 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:51:56,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:56,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:56,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:56,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 10:51:56,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:56,384 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:56,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,476 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:56,476 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:56,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:56,479 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:56,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:51:56,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:56,735 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:51:56,738 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:56,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:56,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:56,738 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:56,738 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:51:56,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:56,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:56,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:56,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 10:51:56,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:56,739 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:56,741 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 10:51:56,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:56,815 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:56,815 INFO L489 LassoAnalysis]: Using template 'affine'. 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 10:51:56,818 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 10:51:56,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:56,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:56,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:56,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:56,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:56,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:56,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:56,828 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:51:56,832 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:51:56,833 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 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 10:51:56,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:51:56,835 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:51:56,835 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:51:56,835 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 10:51:56,865 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:51:56,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:56,882 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:51:56,883 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:56,889 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:51:56,890 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:56,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:51:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:56,985 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 10:51:56,986 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:57,065 WARN L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 10:51:57,066 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:57,164 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:51:57,164 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:57,168 INFO L98 LoopCannibalizer]: 7 predicates before loop cannibalization 14 predicates after loop cannibalization [2020-07-01 10:51:57,169 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 14 loop predicates [2020-07-01 10:51:57,169 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 23 states and 55 transitions. cyclomatic complexity: 35 Second operand 6 states. [2020-07-01 10:51:57,630 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 23 states and 55 transitions. cyclomatic complexity: 35. Second operand 6 states. Result 423 states and 823 transitions. Complement of second has 67 states. [2020-07-01 10:51:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2020-07-01 10:51:57,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 10:51:57,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 66 transitions. [2020-07-01 10:51:57,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 66 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-01 10:51:57,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:57,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 66 transitions. Stem has 11 letters. Loop has 6 letters. [2020-07-01 10:51:57,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:57,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 66 transitions. Stem has 5 letters. Loop has 12 letters. [2020-07-01 10:51:57,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:57,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 423 states and 823 transitions. [2020-07-01 10:51:57,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2020-07-01 10:51:57,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 423 states to 216 states and 420 transitions. [2020-07-01 10:51:57,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2020-07-01 10:51:57,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-07-01 10:51:57,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 216 states and 420 transitions. [2020-07-01 10:51:57,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:51:57,652 INFO L688 BuchiCegarLoop]: Abstraction has 216 states and 420 transitions. [2020-07-01 10:51:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states and 420 transitions. [2020-07-01 10:51:57,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 77. [2020-07-01 10:51:57,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-01 10:51:57,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 181 transitions. [2020-07-01 10:51:57,661 INFO L711 BuchiCegarLoop]: Abstraction has 77 states and 181 transitions. [2020-07-01 10:51:57,661 INFO L591 BuchiCegarLoop]: Abstraction has 77 states and 181 transitions. [2020-07-01 10:51:57,661 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 10:51:57,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 181 transitions. [2020-07-01 10:51:57,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-07-01 10:51:57,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:51:57,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:51:57,663 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 10:51:57,663 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-07-01 10:51:57,663 INFO L794 eck$LassoCheckResult]: Stem: 971#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 972#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 1004#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 1000#L22-2 [71] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 998#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 993#L22-3 [2020-07-01 10:51:57,664 INFO L796 eck$LassoCheckResult]: Loop: 993#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 991#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 987#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 989#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 986#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 988#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 993#L22-3 [2020-07-01 10:51:57,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:57,664 INFO L82 PathProgramCache]: Analyzing trace with hash 74395201, now seen corresponding path program 1 times [2020-07-01 10:51:57,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:57,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534733009] [2020-07-01 10:51:57,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:57,676 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:57,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:57,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1800878038, now seen corresponding path program 2 times [2020-07-01 10:51:57,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:57,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754749468] [2020-07-01 10:51:57,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:57,687 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:57,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:57,688 INFO L82 PathProgramCache]: Analyzing trace with hash -502512022, now seen corresponding path program 1 times [2020-07-01 10:51:57,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:57,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863120077] [2020-07-01 10:51:57,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:57,707 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:57,747 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:57,747 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:57,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:57,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:57,748 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:51:57,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:57,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:57,748 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:57,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 10:51:57,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:57,748 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:57,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:57,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:57,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:57,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:57,761 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 10:51:57,819 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:57,820 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:57,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:57,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:57,827 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:57,827 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:57,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:57,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:57,863 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:57,863 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:57,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:57,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:57,898 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:57,899 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:57,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:57,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:57,934 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:57,934 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:57,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:57,965 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:58,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:51:58,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:58,194 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:51:58,196 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:58,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:58,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:58,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:58,197 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:51:58,197 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:58,197 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:58,197 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:58,197 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 10:51:58,198 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:58,198 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:58,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:58,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:58,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:58,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:58,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:58,268 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:58,269 INFO L489 LassoAnalysis]: Using template 'affine'. 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 10:51:58,272 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 10:51:58,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:58,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:58,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:58,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:58,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:58,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:58,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:58,277 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 10:51:58,308 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 10:51:58,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:58,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:58,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:58,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:58,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:51:58,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:51:58,316 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 10:51:58,347 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 10:51:58,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:58,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:58,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:58,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:58,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:58,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:58,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:58,352 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 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 10:51:58,383 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 10:51:58,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:58,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:58,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:58,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:58,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:51:58,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:51:58,391 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 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:58,422 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 10:51:58,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:58,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:58,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:58,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:58,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:58,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:58,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:58,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:51:58,434 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:51:58,434 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 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:58,436 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:51:58,436 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:51:58,437 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:51:58,437 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 10:51:58,467 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:51:58,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:58,485 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:51:58,486 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:58,492 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:51:58,493 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:51:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:58,579 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 10:51:58,579 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:58,670 WARN L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 10:51:58,670 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:51:58,781 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:51:58,781 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:51:58,785 INFO L98 LoopCannibalizer]: 7 predicates before loop cannibalization 14 predicates after loop cannibalization [2020-07-01 10:51:58,785 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 14 loop predicates [2020-07-01 10:51:58,786 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 77 states and 181 transitions. cyclomatic complexity: 110 Second operand 6 states. [2020-07-01 10:51:59,313 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 77 states and 181 transitions. cyclomatic complexity: 110. Second operand 6 states. Result 1172 states and 2462 transitions. Complement of second has 67 states. [2020-07-01 10:51:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2020-07-01 10:51:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 10:51:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 66 transitions. [2020-07-01 10:51:59,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 66 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-01 10:51:59,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:59,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 66 transitions. Stem has 11 letters. Loop has 6 letters. [2020-07-01 10:51:59,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:59,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 66 transitions. Stem has 5 letters. Loop has 12 letters. [2020-07-01 10:51:59,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:51:59,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1172 states and 2462 transitions. [2020-07-01 10:51:59,334 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 256 [2020-07-01 10:51:59,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1172 states to 599 states and 1228 transitions. [2020-07-01 10:51:59,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2020-07-01 10:51:59,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2020-07-01 10:51:59,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 599 states and 1228 transitions. [2020-07-01 10:51:59,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:51:59,342 INFO L688 BuchiCegarLoop]: Abstraction has 599 states and 1228 transitions. [2020-07-01 10:51:59,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states and 1228 transitions. [2020-07-01 10:51:59,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 184. [2020-07-01 10:51:59,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-01 10:51:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 473 transitions. [2020-07-01 10:51:59,359 INFO L711 BuchiCegarLoop]: Abstraction has 184 states and 473 transitions. [2020-07-01 10:51:59,359 INFO L591 BuchiCegarLoop]: Abstraction has 184 states and 473 transitions. [2020-07-01 10:51:59,359 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 10:51:59,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 473 transitions. [2020-07-01 10:51:59,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2020-07-01 10:51:59,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:51:59,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:51:59,362 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 10:51:59,362 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:51:59,362 INFO L794 eck$LassoCheckResult]: Stem: 2414#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 2415#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 2432#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 2487#L22-2 [71] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 2482#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 2483#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 2411#L20-2 [2020-07-01 10:51:59,363 INFO L796 eck$LassoCheckResult]: Loop: 2411#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 2419#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 2410#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 2411#L20-2 [2020-07-01 10:51:59,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:59,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1988716011, now seen corresponding path program 1 times [2020-07-01 10:51:59,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:59,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568831151] [2020-07-01 10:51:59,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:59,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:59,377 INFO L82 PathProgramCache]: Analyzing trace with hash 92860, now seen corresponding path program 2 times [2020-07-01 10:51:59,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:59,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90255081] [2020-07-01 10:51:59,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:59,384 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:59,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:51:59,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1059739608, now seen corresponding path program 1 times [2020-07-01 10:51:59,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:51:59,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805586197] [2020-07-01 10:51:59,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:51:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:51:59,400 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:51:59,426 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:59,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:59,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:59,426 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:59,426 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:51:59,426 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:59,426 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:59,426 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:59,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-07-01 10:51:59,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:59,427 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:59,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,496 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:59,496 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:59,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:59,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:59,503 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:59,503 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:59,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:59,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:59,539 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:59,539 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:59,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:59,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:59,575 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:59,575 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:59,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:59,608 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:59,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:51:59,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:59,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:51:59,658 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=7}, {ULTIMATE.start_main_~y~0=-8}] Lambdas: [10, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:59,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:51:59,691 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:51:59,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:51:59,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:51:59,806 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:51:59,808 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:51:59,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:51:59,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:51:59,808 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:51:59,808 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:51:59,808 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:59,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:51:59,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:51:59,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-07-01 10:51:59,809 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:51:59,809 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:51:59,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:51:59,881 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:51:59,881 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:59,884 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 10:51:59,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:59,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:59,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:59,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:59,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:59,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:59,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:59,889 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 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:59,920 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 10:51:59,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:59,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:59,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:59,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:59,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:51:59,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:51:59,928 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 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:59,960 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 10:51:59,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:59,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:51:59,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:59,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:59,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:51:59,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:51:59,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:51:59,965 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 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:51:59,997 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 10:51:59,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:51:59,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:51:59,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:51:59,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:00,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:52:00,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:52:00,004 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 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:00,035 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 10:52:00,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:00,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:00,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:00,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:00,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:00,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:00,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:00,041 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:52:00,043 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 10:52:00,044 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:00,046 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:52:00,046 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:52:00,046 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:52:00,046 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 10:52:00,075 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:52:00,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:00,092 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:52:00,092 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:00,097 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:52:00,097 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:00,104 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 10:52:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:00,108 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:52:00,109 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:00,124 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:52:00,125 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 10:52:00,125 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 184 states and 473 transitions. cyclomatic complexity: 304 Second operand 4 states. [2020-07-01 10:52:00,196 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 184 states and 473 transitions. cyclomatic complexity: 304. Second operand 4 states. Result 508 states and 1380 transitions. Complement of second has 8 states. [2020-07-01 10:52:00,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 10:52:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 10:52:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-07-01 10:52:00,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 10:52:00,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:00,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 10:52:00,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:00,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 6 letters. [2020-07-01 10:52:00,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:00,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 508 states and 1380 transitions. [2020-07-01 10:52:00,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2020-07-01 10:52:00,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 508 states to 365 states and 882 transitions. [2020-07-01 10:52:00,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-07-01 10:52:00,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-07-01 10:52:00,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 365 states and 882 transitions. [2020-07-01 10:52:00,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:52:00,211 INFO L688 BuchiCegarLoop]: Abstraction has 365 states and 882 transitions. [2020-07-01 10:52:00,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states and 882 transitions. [2020-07-01 10:52:00,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 140. [2020-07-01 10:52:00,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-01 10:52:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 341 transitions. [2020-07-01 10:52:00,221 INFO L711 BuchiCegarLoop]: Abstraction has 140 states and 341 transitions. [2020-07-01 10:52:00,221 INFO L591 BuchiCegarLoop]: Abstraction has 140 states and 341 transitions. [2020-07-01 10:52:00,221 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2020-07-01 10:52:00,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states and 341 transitions. [2020-07-01 10:52:00,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 64 [2020-07-01 10:52:00,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:00,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:00,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1] [2020-07-01 10:52:00,224 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1] [2020-07-01 10:52:00,224 INFO L794 eck$LassoCheckResult]: Stem: 3166#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3162#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3163#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 3215#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 3207#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3212#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 3206#L22-2 [71] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3196#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 3198#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3246#L20-2 [65] L20-2-->L20-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 1) v_ULTIMATE.start_main_~y~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 3245#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3241#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3233#L20-2 [65] L20-2-->L20-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 1) v_ULTIMATE.start_main_~y~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 3234#L20-3 [2020-07-01 10:52:00,224 INFO L796 eck$LassoCheckResult]: Loop: 3234#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3270#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3271#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 3235#L22-2 [70] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3237#L22-2 [68] L22-2-->L22-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 3230#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3246#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 3245#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3241#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3233#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 3234#L20-3 [2020-07-01 10:52:00,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1896935055, now seen corresponding path program 1 times [2020-07-01 10:52:00,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:00,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426286314] [2020-07-01 10:52:00,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:00,283 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 10:52:00,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426286314] [2020-07-01 10:52:00,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 10:52:00,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-01 10:52:00,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703857326] [2020-07-01 10:52:00,288 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 10:52:00,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:00,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1319016937, now seen corresponding path program 1 times [2020-07-01 10:52:00,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:00,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627493152] [2020-07-01 10:52:00,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:00,303 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:00,418 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-07-01 10:52:00,442 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:00,442 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:00,442 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:00,442 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:00,442 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:52:00,442 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:00,443 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:00,443 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:00,443 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-07-01 10:52:00,443 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:00,443 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:00,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:00,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:00,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:00,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:00,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:00,569 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:00,569 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:00,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:00,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:00,586 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:00,586 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:00,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:00,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:00,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:00,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:00,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:00,656 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:00,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:52:00,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:01,008 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:52:01,011 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:01,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:01,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:01,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:01,011 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:52:01,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:01,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:01,011 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:01,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-07-01 10:52:01,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:01,012 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:01,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:01,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:01,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:01,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:01,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:01,092 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:01,092 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:01,096 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 10:52:01,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:01,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:01,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:01,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:01,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:01,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:01,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:01,102 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 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:01,133 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 10:52:01,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:01,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:01,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:01,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:01,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:52:01,137 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:52:01,141 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 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:01,173 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 10:52:01,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:01,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:01,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:01,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:01,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:01,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:01,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:01,180 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:52:01,184 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:52:01,184 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 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:01,186 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:52:01,186 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:52:01,187 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:52:01,187 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 10:52:01,216 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:52:01,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:01,240 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:52:01,241 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:01,250 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 10:52:01,251 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:52:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:01,409 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-01 10:52:01,410 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:01,547 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-01 10:52:01,547 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:01,689 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 10:52:01,690 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:01,812 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-01 10:52:01,812 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:01,983 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-01 10:52:01,984 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:02,054 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-01 10:52:02,055 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:02,259 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 10:52:02,259 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:02,265 INFO L98 LoopCannibalizer]: 11 predicates before loop cannibalization 32 predicates after loop cannibalization [2020-07-01 10:52:02,266 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 32 loop predicates [2020-07-01 10:52:02,266 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 140 states and 341 transitions. cyclomatic complexity: 212 Second operand 9 states. [2020-07-01 10:52:10,374 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 140 states and 341 transitions. cyclomatic complexity: 212. Second operand 9 states. Result 58512 states and 88141 transitions. Complement of second has 5260 states. [2020-07-01 10:52:10,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 90 states 1 stem states 85 non-accepting loop states 3 accepting loop states [2020-07-01 10:52:10,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-01 10:52:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 313 transitions. [2020-07-01 10:52:10,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 90 states and 313 transitions. Stem has 13 letters. Loop has 10 letters. [2020-07-01 10:52:10,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:10,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 90 states and 313 transitions. Stem has 23 letters. Loop has 10 letters. [2020-07-01 10:52:10,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:10,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 90 states and 313 transitions. Stem has 13 letters. Loop has 20 letters. [2020-07-01 10:52:10,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:10,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58512 states and 88141 transitions. [2020-07-01 10:52:10,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 64 [2020-07-01 10:52:10,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58512 states to 140 states and 316 transitions. [2020-07-01 10:52:10,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-07-01 10:52:10,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-07-01 10:52:10,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 316 transitions. [2020-07-01 10:52:10,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:52:10,761 INFO L688 BuchiCegarLoop]: Abstraction has 140 states and 316 transitions. [2020-07-01 10:52:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 316 transitions. [2020-07-01 10:52:10,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-01 10:52:10,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-01 10:52:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 316 transitions. [2020-07-01 10:52:10,767 INFO L711 BuchiCegarLoop]: Abstraction has 140 states and 316 transitions. [2020-07-01 10:52:10,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 10:52:10,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 10:52:10,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-01 10:52:10,772 INFO L87 Difference]: Start difference. First operand 140 states and 316 transitions. Second operand 5 states. [2020-07-01 10:52:10,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 10:52:10,831 INFO L93 Difference]: Finished difference Result 226 states and 406 transitions. [2020-07-01 10:52:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-01 10:52:10,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 406 transitions. [2020-07-01 10:52:10,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 103 [2020-07-01 10:52:10,840 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 190 states and 344 transitions. [2020-07-01 10:52:10,840 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-07-01 10:52:10,840 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-07-01 10:52:10,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 190 states and 344 transitions. [2020-07-01 10:52:10,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:52:10,841 INFO L688 BuchiCegarLoop]: Abstraction has 190 states and 344 transitions. [2020-07-01 10:52:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states and 344 transitions. [2020-07-01 10:52:10,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 137. [2020-07-01 10:52:10,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-07-01 10:52:10,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 288 transitions. [2020-07-01 10:52:10,846 INFO L711 BuchiCegarLoop]: Abstraction has 137 states and 288 transitions. [2020-07-01 10:52:10,846 INFO L591 BuchiCegarLoop]: Abstraction has 137 states and 288 transitions. [2020-07-01 10:52:10,846 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2020-07-01 10:52:10,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 288 transitions. [2020-07-01 10:52:10,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2020-07-01 10:52:10,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:10,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:10,848 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1] [2020-07-01 10:52:10,849 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1] [2020-07-01 10:52:10,849 INFO L794 eck$LassoCheckResult]: Stem: 67926#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 67922#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 67923#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 67957#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 67958#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 67964#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 67959#L22-2 [71] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 67960#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 67976#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 67973#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 67974#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68002#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68001#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 67927#L20-3 [2020-07-01 10:52:10,849 INFO L796 eck$LassoCheckResult]: Loop: 67927#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 67928#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68040#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 67944#L22-2 [70] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68018#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 67975#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 67973#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 67974#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68002#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68001#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 67927#L20-3 [2020-07-01 10:52:10,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:10,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1729020909, now seen corresponding path program 1 times [2020-07-01 10:52:10,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:10,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689609087] [2020-07-01 10:52:10,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:10,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:10,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1290387786, now seen corresponding path program 1 times [2020-07-01 10:52:10,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:10,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603553800] [2020-07-01 10:52:10,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:10,881 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:10,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:10,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1750987870, now seen corresponding path program 1 times [2020-07-01 10:52:10,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:10,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073899869] [2020-07-01 10:52:10,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:10,906 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:11,014 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-07-01 10:52:11,028 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:11,028 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:11,028 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:11,028 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:11,028 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:52:11,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:11,029 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:11,029 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:11,029 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Loop [2020-07-01 10:52:11,029 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:11,029 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:11,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,095 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:11,095 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:11,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:11,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:11,102 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:11,102 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:11,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:11,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:11,137 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:11,137 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:11,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:11,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:11,173 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:11,173 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:11,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:11,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:11,207 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:11,208 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:11,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:11,239 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:11,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:52:11,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:11,391 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:52:11,393 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:11,393 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:11,393 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:11,393 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:11,393 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:52:11,394 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:11,394 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:11,394 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:11,394 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Loop [2020-07-01 10:52:11,394 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:11,394 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:11,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:11,458 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:11,458 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:11,461 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 10:52:11,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:11,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:11,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:11,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:11,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:52:11,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:52:11,468 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 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:11,531 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 10:52:11,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:11,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:11,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:11,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:11,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:11,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:11,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:11,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:11,568 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 10:52:11,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:11,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:11,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:11,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:11,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:11,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:11,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:11,572 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 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:11,603 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 10:52:11,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:11,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:11,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:11,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:11,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:11,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:11,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:11,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:52:11,614 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:52:11,614 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 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:11,616 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:52:11,616 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:52:11,616 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:52:11,616 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 10:52:11,645 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:52:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:11,666 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:52:11,666 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:11,675 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 10:52:11,675 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:52:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:11,721 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 10:52:11,721 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:11,742 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 10:52:11,743 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:11,760 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 10:52:11,761 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:11,803 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 10:52:11,804 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:11,828 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 10:52:11,828 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:11,831 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 8 predicates after loop cannibalization [2020-07-01 10:52:11,832 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 8 loop predicates [2020-07-01 10:52:11,832 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 137 states and 288 transitions. cyclomatic complexity: 159 Second operand 5 states. [2020-07-01 10:52:11,908 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 137 states and 288 transitions. cyclomatic complexity: 159. Second operand 5 states. Result 587 states and 1146 transitions. Complement of second has 17 states. [2020-07-01 10:52:11,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 10:52:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 10:52:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2020-07-01 10:52:11,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 13 letters. Loop has 10 letters. [2020-07-01 10:52:11,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:11,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 23 letters. Loop has 10 letters. [2020-07-01 10:52:11,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:11,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 13 letters. Loop has 20 letters. [2020-07-01 10:52:11,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:11,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 1146 transitions. [2020-07-01 10:52:11,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 201 [2020-07-01 10:52:11,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 391 states and 774 transitions. [2020-07-01 10:52:11,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-07-01 10:52:11,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-07-01 10:52:11,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 391 states and 774 transitions. [2020-07-01 10:52:11,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:52:11,919 INFO L688 BuchiCegarLoop]: Abstraction has 391 states and 774 transitions. [2020-07-01 10:52:11,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states and 774 transitions. [2020-07-01 10:52:11,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 183. [2020-07-01 10:52:11,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-07-01 10:52:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 422 transitions. [2020-07-01 10:52:11,926 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 422 transitions. [2020-07-01 10:52:11,926 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 422 transitions. [2020-07-01 10:52:11,926 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2020-07-01 10:52:11,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 422 transitions. [2020-07-01 10:52:11,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 80 [2020-07-01 10:52:11,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:11,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:11,928 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1] [2020-07-01 10:52:11,928 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1] [2020-07-01 10:52:11,928 INFO L794 eck$LassoCheckResult]: Stem: 68898#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68894#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68895#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 68929#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 68930#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 68939#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 68932#L22-2 [71] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68933#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 68970#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 68961#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 68962#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68926#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68927#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 68899#L20-3 [2020-07-01 10:52:11,929 INFO L796 eck$LassoCheckResult]: Loop: 68899#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68896#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68897#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 68916#L22-2 [70] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 69054#L22-2 [70] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 69053#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 68976#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 68961#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 68962#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68926#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 68927#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 68899#L20-3 [2020-07-01 10:52:11,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:11,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1729020909, now seen corresponding path program 2 times [2020-07-01 10:52:11,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:11,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730502180] [2020-07-01 10:52:11,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:11,943 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:11,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:11,943 INFO L82 PathProgramCache]: Analyzing trace with hash -39160712, now seen corresponding path program 2 times [2020-07-01 10:52:11,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:11,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268363590] [2020-07-01 10:52:11,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:11,955 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:11,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:11,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1432861428, now seen corresponding path program 2 times [2020-07-01 10:52:11,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:11,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101428175] [2020-07-01 10:52:11,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:11,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:12,096 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-07-01 10:52:12,112 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:12,112 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:12,112 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:12,112 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:12,112 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:52:12,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:12,113 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:12,113 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:12,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration9_Loop [2020-07-01 10:52:12,113 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:12,113 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:12,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,180 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:12,180 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:12,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:12,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:12,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:12,187 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:12,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:12,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:12,222 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:12,222 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:12,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:12,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:12,257 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:12,257 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:12,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:12,288 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:12,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:52:12,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:12,546 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:52:12,549 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:12,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:12,549 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:12,549 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:12,549 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:52:12,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:12,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:12,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:12,550 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration9_Loop [2020-07-01 10:52:12,550 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:12,550 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:12,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:12,618 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:12,618 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:12,621 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 10:52:12,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:12,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:12,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:12,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:12,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:52:12,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:52:12,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:12,659 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 10:52:12,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:12,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:12,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:12,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:12,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:12,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:12,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:12,664 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:12,695 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 10:52:12,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:12,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:12,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:12,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:12,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:12,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:12,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:12,700 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:12,731 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 10:52:12,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:12,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:12,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:12,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:12,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:12,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:12,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:12,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:52:12,741 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:52:12,741 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 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:12,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:52:12,744 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:52:12,744 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:52:12,744 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 10:52:12,773 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:52:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:12,793 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:52:12,794 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:12,804 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:52:12,804 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 10:52:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:12,880 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:52:12,881 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:12,912 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:52:12,913 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:12,929 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:52:12,930 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:12,972 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:52:12,973 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:13,029 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:52:13,030 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:13,071 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-01 10:52:13,071 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:13,087 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 10 predicates after loop cannibalization [2020-07-01 10:52:13,088 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 10 loop predicates [2020-07-01 10:52:13,088 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 183 states and 422 transitions. cyclomatic complexity: 249 Second operand 6 states. [2020-07-01 10:52:13,182 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 183 states and 422 transitions. cyclomatic complexity: 249. Second operand 6 states. Result 848 states and 1815 transitions. Complement of second has 25 states. [2020-07-01 10:52:13,183 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 10:52:13,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 10:52:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 44 transitions. [2020-07-01 10:52:13,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 44 transitions. Stem has 13 letters. Loop has 11 letters. [2020-07-01 10:52:13,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:13,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 44 transitions. Stem has 24 letters. Loop has 11 letters. [2020-07-01 10:52:13,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:13,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 44 transitions. Stem has 13 letters. Loop has 22 letters. [2020-07-01 10:52:13,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:13,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 848 states and 1815 transitions. [2020-07-01 10:52:13,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 336 [2020-07-01 10:52:13,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 848 states to 603 states and 1264 transitions. [2020-07-01 10:52:13,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2020-07-01 10:52:13,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-07-01 10:52:13,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 603 states and 1264 transitions. [2020-07-01 10:52:13,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:52:13,195 INFO L688 BuchiCegarLoop]: Abstraction has 603 states and 1264 transitions. [2020-07-01 10:52:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states and 1264 transitions. [2020-07-01 10:52:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 299. [2020-07-01 10:52:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-07-01 10:52:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 707 transitions. [2020-07-01 10:52:13,203 INFO L711 BuchiCegarLoop]: Abstraction has 299 states and 707 transitions. [2020-07-01 10:52:13,204 INFO L591 BuchiCegarLoop]: Abstraction has 299 states and 707 transitions. [2020-07-01 10:52:13,204 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2020-07-01 10:52:13,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 299 states and 707 transitions. [2020-07-01 10:52:13,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 176 [2020-07-01 10:52:13,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:13,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:13,206 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1] [2020-07-01 10:52:13,206 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 1, 1, 1] [2020-07-01 10:52:13,206 INFO L794 eck$LassoCheckResult]: Stem: 70241#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70237#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70238#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 70279#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 70280#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 70297#L20-2 [67] L20-2-->L22-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 70287#L22-2 [71] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70325#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 70324#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 70320#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 70321#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70268#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70269#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 70242#L20-3 [2020-07-01 10:52:13,207 INFO L796 eck$LassoCheckResult]: Loop: 70242#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70243#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70494#L20-2 [66] L20-2-->L22-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (<= (+ v_ULTIMATE.start_main_~x~0_12 1) v_ULTIMATE.start_main_~y~0_14) (= v_ULTIMATE.start_main_~y~0_13 (+ v_ULTIMATE.start_main_~y~0_14 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 70356#L22-2 [70] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70350#L22-2 [70] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70352#L22-2 [70] L22-2-->L22-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_15 3) v_ULTIMATE.start_main_~y~0_17) (= v_ULTIMATE.start_main_~y~0_16 (+ v_ULTIMATE.start_main_~y~0_17 (- 2))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~x~0_14 (+ v_ULTIMATE.start_main_~x~0_15 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70341#L22-2 [69] L22-2-->L22-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 70334#L22-3 [54] L22-3-->L20-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 (+ v_ULTIMATE.start_main_~y~0_2 (- 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 70320#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 70321#L20-3 [49] L20-3-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~x~0_6 (- 1)))) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70268#L17-2 [46] L17-2-->L20-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 70269#L20-2 [64] L20-2-->L20-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 70242#L20-3 [2020-07-01 10:52:13,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:13,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1729020909, now seen corresponding path program 3 times [2020-07-01 10:52:13,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:13,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329685582] [2020-07-01 10:52:13,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:13,219 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:13,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:13,219 INFO L82 PathProgramCache]: Analyzing trace with hash 94172918, now seen corresponding path program 3 times [2020-07-01 10:52:13,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:13,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413840348] [2020-07-01 10:52:13,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:13,232 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:13,232 INFO L82 PathProgramCache]: Analyzing trace with hash -160876318, now seen corresponding path program 3 times [2020-07-01 10:52:13,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:13,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944014833] [2020-07-01 10:52:13,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:13,254 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:13,392 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-07-01 10:52:13,407 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:13,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:13,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:13,408 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:13,408 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:52:13,408 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:13,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:13,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:13,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration10_Loop [2020-07-01 10:52:13,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:13,408 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:13,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,479 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:13,479 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:13,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:13,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:13,521 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:13,521 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=1} Honda state: {ULTIMATE.start_main_#t~nondet2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:13,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:13,552 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:13,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:52:13,587 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:13,624 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:52:13,625 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:13,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:13,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:13,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:13,626 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:52:13,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:13,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:13,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:13,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration10_Loop [2020-07-01 10:52:13,626 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:13,626 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:13,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:13,697 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:13,697 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:13,700 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 10:52:13,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:13,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:13,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:13,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:13,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:13,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:13,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:13,704 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 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:13,736 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 10:52:13,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:13,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:13,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:13,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:13,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:13,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:13,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:13,742 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:52:13,746 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:52:13,746 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 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:13,748 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:52:13,748 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:52:13,749 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:52:13,749 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 10:52:13,778 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:52:13,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:13,797 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:52:13,798 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:13,808 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-01 10:52:13,808 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:52:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:14,057 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-01 10:52:14,057 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:14,275 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-01 10:52:14,275 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:14,472 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 10:52:14,473 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:14,605 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-01 10:52:14,605 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:14,792 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-01 10:52:14,793 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:15,038 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-01 10:52:15,039 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:15,179 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-01 10:52:15,180 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:15,318 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-01 10:52:15,318 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:15,324 INFO L98 LoopCannibalizer]: 15 predicates before loop cannibalization 43 predicates after loop cannibalization [2020-07-01 10:52:15,324 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 43 loop predicates [2020-07-01 10:52:15,324 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 299 states and 707 transitions. cyclomatic complexity: 420 Second operand 11 states. [2020-07-01 10:52:26,513 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 299 states and 707 transitions. cyclomatic complexity: 420. Second operand 11 states. Result 209616 states and 250927 transitions. Complement of second has 17981 states. [2020-07-01 10:52:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 49 states 1 stem states 47 non-accepting loop states 1 accepting loop states [2020-07-01 10:52:26,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 10:52:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 177 transitions. [2020-07-01 10:52:26,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 49 states and 177 transitions. Stem has 13 letters. Loop has 12 letters. [2020-07-01 10:52:26,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:26,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 49 states and 177 transitions. Stem has 25 letters. Loop has 12 letters. [2020-07-01 10:52:26,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:26,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 49 states and 177 transitions. Stem has 13 letters. Loop has 24 letters. [2020-07-01 10:52:26,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:26,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209616 states and 250927 transitions. [2020-07-01 10:52:27,236 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:52:27,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209616 states to 0 states and 0 transitions. [2020-07-01 10:52:27,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:52:27,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:52:27,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:52:27,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:52:27,237 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:52:27,237 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:52:27,237 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:52:27,237 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2020-07-01 10:52:27,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:52:27,237 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:52:27,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:52:27,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:52:27 BasicIcfg [2020-07-01 10:52:27,245 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:52:27,246 INFO L168 Benchmark]: Toolchain (without parser) took 34571.11 ms. Allocated memory was 514.9 MB in the beginning and 2.0 GB in the end (delta: 1.5 GB). Free memory was 439.4 MB in the beginning and 382.7 MB in the end (delta: 56.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 50.3 GB. [2020-07-01 10:52:27,246 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:52:27,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.12 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 438.8 MB in the beginning and 533.7 MB in the end (delta: -94.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:27,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.95 ms. Allocated memory is still 566.2 MB. Free memory was 533.7 MB in the beginning and 532.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:27,247 INFO L168 Benchmark]: Boogie Preprocessor took 21.19 ms. Allocated memory is still 566.2 MB. Free memory was 532.1 MB in the beginning and 531.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:27,248 INFO L168 Benchmark]: RCFGBuilder took 249.09 ms. Allocated memory is still 566.2 MB. Free memory was 531.0 MB in the beginning and 518.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:27,248 INFO L168 Benchmark]: BlockEncodingV2 took 80.18 ms. Allocated memory is still 566.2 MB. Free memory was 517.7 MB in the beginning and 512.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:27,248 INFO L168 Benchmark]: TraceAbstraction took 151.46 ms. Allocated memory is still 566.2 MB. Free memory was 511.8 MB in the beginning and 502.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:27,249 INFO L168 Benchmark]: BuchiAutomizer took 33727.26 ms. Allocated memory was 566.2 MB in the beginning and 2.0 GB in the end (delta: 1.4 GB). Free memory was 502.4 MB in the beginning and 382.7 MB in the end (delta: 119.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 50.3 GB. [2020-07-01 10:52:27,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 12 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 300.12 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 438.8 MB in the beginning and 533.7 MB in the end (delta: -94.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.95 ms. Allocated memory is still 566.2 MB. Free memory was 533.7 MB in the beginning and 532.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 21.19 ms. Allocated memory is still 566.2 MB. Free memory was 532.1 MB in the beginning and 531.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 249.09 ms. Allocated memory is still 566.2 MB. Free memory was 531.0 MB in the beginning and 518.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 80.18 ms. Allocated memory is still 566.2 MB. Free memory was 517.7 MB in the beginning and 512.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.46 ms. Allocated memory is still 566.2 MB. Free memory was 511.8 MB in the beginning and 502.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 33727.26 ms. Allocated memory was 566.2 MB in the beginning and 2.0 GB in the end (delta: 1.4 GB). Free memory was 502.4 MB in the beginning and 382.7 MB in the end (delta: 119.7 MB). Peak memory consumption was 1.6 GB. 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (1 trivial, 0 deterministic, 10 nondeterministic). One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 13 locations. One nondeterministic module has affine ranking function y and consists of 13 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 90 locations. One nondeterministic module has affine ranking function x and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 49 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.6s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 7.4s. Construction of modules took 2.1s. Büchi inclusion checks took 22.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 1386 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 1.1s Buchi closure took 0.0s. Biggest automaton had 299 states and ocurred in iteration 9. Nontrivial modules had stage [10, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 21/33 HoareTripleCheckerStatistics: 47 SDtfs, 516 SDslu, 728 SDs, 0 SdLazy, 3562 SolverSat, 591 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT9 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax151 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf108 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 22 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 10:51:49.397 ----------------------------------------------- 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_ji19Lz/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:52:27.484 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check