/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 12:32:07,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:32:07,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:32:07,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:32:07,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:32:07,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:32:07,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:32:07,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:32:07,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:32:07,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:32:07,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:32:07,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:32:07,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:32:07,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:32:07,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:32:07,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:32:07,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:32:07,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:32:07,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:32:07,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:32:07,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:32:07,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:32:07,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:32:07,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:32:07,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:32:07,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:32:07,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:32:07,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:32:07,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:32:07,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:32:07,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:32:07,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:32:07,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:32:07,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:32:07,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:32:07,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:32:07,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:32:07,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:32:07,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:32:07,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:32:07,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:32:07,628 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:32:07,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:32:07,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:32:07,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:32:07,644 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:32:07,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:32:07,644 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:32:07,644 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:32:07,645 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:32:07,645 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:32:07,645 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:32:07,645 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:32:07,645 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:32:07,645 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:32:07,646 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:32:07,646 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:07,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:32:07,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:32:07,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:32:07,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:32:07,647 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:32:07,647 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:32:07,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:32:07,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:32:07,647 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:32:07,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:32:07,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:32:07,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:32:07,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:32:07,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:32:07,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:32:07,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:32:07,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:32:07,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:32:07,835 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:32:07,836 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:32:07,904 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_HSLH4F/tmp/ccca9db088e7492e83b4833969e8ac88/FLAGcff9f2190 [2020-07-01 12:32:08,246 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:32:08,247 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:32:08,253 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_HSLH4F/tmp/ccca9db088e7492e83b4833969e8ac88/FLAGcff9f2190 [2020-07-01 12:32:08,645 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_HSLH4F/tmp/ccca9db088e7492e83b4833969e8ac88 [2020-07-01 12:32:08,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:32:08,658 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:32:08,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:32:08,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:32:08,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:32:08,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:08,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180f824e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08, skipping insertion in model container [2020-07-01 12:32:08,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:08,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:32:08,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:32:08,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:32:08,916 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:32:08,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:32:08,947 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:32:08,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08 WrapperNode [2020-07-01 12:32:08,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:32:08,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:32:08,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:32:08,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:32:08,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:08,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:08,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:32:08,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:32:08,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:32:08,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:32:08,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:08,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:08,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:08,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:08,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:09,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:09,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... [2020-07-01 12:32:09,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:32:09,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:32:09,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:32:09,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:32:09,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:32:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:32:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:32:09,220 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:32:09,221 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 12:32:09,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:32:09 BoogieIcfgContainer [2020-07-01 12:32:09,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:32:09,225 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:32:09,225 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:32:09,227 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:32:09,228 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:32:09" (1/1) ... [2020-07-01 12:32:09,240 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-07-01 12:32:09,242 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:32:09,242 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:32:09,243 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:32:09,243 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:32:09,245 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:32:09,246 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:32:09,246 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:32:09,261 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:32:09,268 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:32:09,274 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:32:09,275 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:32:09,290 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:32:09,292 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:32:09,293 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:32:09,293 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:32:09,294 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:32:09,294 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:32:09,294 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-07-01 12:32:09,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:32:09 BasicIcfg [2020-07-01 12:32:09,295 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:32:09,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:32:09,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:32:09,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:32:09,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:32:08" (1/4) ... [2020-07-01 12:32:09,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c02dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:32:09, skipping insertion in model container [2020-07-01 12:32:09,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (2/4) ... [2020-07-01 12:32:09,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c02dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:32:09, skipping insertion in model container [2020-07-01 12:32:09,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:32:09" (3/4) ... [2020-07-01 12:32:09,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c02dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:32:09, skipping insertion in model container [2020-07-01 12:32:09,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:32:09" (4/4) ... [2020-07-01 12:32:09,305 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:32:09,316 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:32:09,324 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:32:09,338 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:32:09,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:32:09,361 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:32:09,361 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:32:09,361 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:32:09,362 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:32:09,362 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:32:09,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:32:09,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:32:09,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 12:32:09,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:32:09,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 12:32:09,439 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:32:09,440 INFO L271 CegarLoopResult]: At program point L25-2(lines 25 27) the Hoare annotation is: true [2020-07-01 12:32:09,440 INFO L268 CegarLoopResult]: For program point L22-1(lines 14 33) no Hoare annotation was computed. [2020-07-01 12:32:09,440 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-07-01 12:32:09,441 INFO L268 CegarLoopResult]: For program point L20-2(lines 14 33) no Hoare annotation was computed. [2020-07-01 12:32:09,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:32:09 BasicIcfg [2020-07-01 12:32:09,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:32:09,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:32:09,450 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:32:09,453 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:32:09,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:32:09,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:32:08" (1/5) ... [2020-07-01 12:32:09,455 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ea1dd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:32:09, skipping insertion in model container [2020-07-01 12:32:09,455 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:32:09,455 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:32:08" (2/5) ... [2020-07-01 12:32:09,456 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ea1dd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:32:09, skipping insertion in model container [2020-07-01 12:32:09,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:32:09,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:32:09" (3/5) ... [2020-07-01 12:32:09,456 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ea1dd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:32:09, skipping insertion in model container [2020-07-01 12:32:09,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:32:09,457 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:32:09" (4/5) ... [2020-07-01 12:32:09,457 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ea1dd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:32:09, skipping insertion in model container [2020-07-01 12:32:09,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:32:09,457 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:32:09" (5/5) ... [2020-07-01 12:32:09,459 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:32:09,487 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:32:09,487 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:32:09,487 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:32:09,488 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:32:09,488 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:32:09,488 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:32:09,488 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:32:09,488 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:32:09,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:32:09,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:32:09,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:32:09,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:32:09,515 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:32:09,515 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:32:09,515 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:32:09,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:32:09,516 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:32:09,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:32:09,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:32:09,516 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:32:09,517 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:32:09,522 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [45] ULTIMATE.startENTRY-->L20: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~x~0] 7#L20true [57] L20-->L20-2: Formula: (>= v_ULTIMATE.start_main_~x~0_9 0) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 6#L20-2true [58] L20-2-->L22-1: Formula: (>= v_ULTIMATE.start_main_~y~0_10 0) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 3#L22-1true [2020-07-01 12:32:09,522 INFO L796 eck$LassoCheckResult]: Loop: 3#L22-1true [44] L22-1-->L25-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~r~0_5 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~r~0] 5#L25-2true [62] L25-2-->L22-1: Formula: (and (= v_ULTIMATE.start_main_~r~0_9 v_ULTIMATE.start_main_~y~0_16) (= v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~y~0_17) (< v_ULTIMATE.start_main_~r~0_9 v_ULTIMATE.start_main_~y~0_17)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L22-1true [2020-07-01 12:32:09,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:09,529 INFO L82 PathProgramCache]: Analyzing trace with hash 74861, now seen corresponding path program 1 times [2020-07-01 12:32:09,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:09,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258438111] [2020-07-01 12:32:09,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:09,612 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:09,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:09,613 INFO L82 PathProgramCache]: Analyzing trace with hash 2387, now seen corresponding path program 1 times [2020-07-01 12:32:09,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:09,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772194816] [2020-07-01 12:32:09,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:09,629 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:09,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:09,631 INFO L82 PathProgramCache]: Analyzing trace with hash 71942847, now seen corresponding path program 1 times [2020-07-01 12:32:09,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:09,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141832258] [2020-07-01 12:32:09,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:09,647 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:09,702 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:32:09,702 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:32:09,703 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:32:09,703 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:32:09,703 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:32:09,703 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:09,703 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:32:09,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:32:09,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:32:09,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:32:09,704 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:32:09,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:09,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:09,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:09,854 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:32:09,855 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 12:32:09,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:09,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:09,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:09,870 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:09,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:09,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:09,908 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:09,908 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:09,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:09,941 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:09,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:32:09,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:10,331 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:32:10,334 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:32:10,334 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:32:10,334 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:32:10,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:32:10,335 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:32:10,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:10,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:32:10,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:32:10,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:32:10,335 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:32:10,336 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:32:10,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:10,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:10,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:10,441 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:32:10,447 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:10,451 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 12:32:10,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:10,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:10,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:10,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:10,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:32:10,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:32:10,468 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:10,504 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 12:32:10,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:10,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:32:10,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:10,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:10,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:10,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:32:10,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:32:10,518 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:32:10,530 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:32:10,530 INFO L444 ModelExtractionUtils]: 2 out of 5 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:10,537 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:32:10,537 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:32:10,537 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:32:10,538 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 12:32:10,574 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:32:10,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:32:10,607 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:32:10,608 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:32:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:32:10,624 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:32:10,624 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:32:10,637 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 12:32:10,662 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:32:10,667 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:32:10,668 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 3 states. [2020-07-01 12:32:10,699 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 3 states. Result 10 states and 16 transitions. Complement of second has 4 states. [2020-07-01 12:32:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:32:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:32:10,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-07-01 12:32:10,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:32:10,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:10,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 12:32:10,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:10,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 12:32:10,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:10,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 16 transitions. [2020-07-01 12:32:10,714 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-01 12:32:10,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 16 transitions. [2020-07-01 12:32:10,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-01 12:32:10,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 12:32:10,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 16 transitions. [2020-07-01 12:32:10,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:32:10,721 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 16 transitions. [2020-07-01 12:32:10,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 16 transitions. [2020-07-01 12:32:10,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-07-01 12:32:10,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-01 12:32:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2020-07-01 12:32:10,750 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-07-01 12:32:10,750 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-07-01 12:32:10,750 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:32:10,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 15 transitions. [2020-07-01 12:32:10,751 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-01 12:32:10,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:32:10,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:32:10,752 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:32:10,752 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:32:10,752 INFO L794 eck$LassoCheckResult]: Stem: 59#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L20: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~x~0] 60#L20 [57] L20-->L20-2: Formula: (>= v_ULTIMATE.start_main_~x~0_9 0) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 61#L20-2 [51] L20-2-->L22-1: Formula: (and (< v_ULTIMATE.start_main_~y~0_9 0) (= v_ULTIMATE.start_main_~y~0_8 (- v_ULTIMATE.start_main_~y~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 54#L22-1 [2020-07-01 12:32:10,752 INFO L796 eck$LassoCheckResult]: Loop: 54#L22-1 [44] L22-1-->L25-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~r~0_5 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~r~0] 55#L25-2 [62] L25-2-->L22-1: Formula: (and (= v_ULTIMATE.start_main_~r~0_9 v_ULTIMATE.start_main_~y~0_16) (= v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~y~0_17) (< v_ULTIMATE.start_main_~r~0_9 v_ULTIMATE.start_main_~y~0_17)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_17, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 54#L22-1 [2020-07-01 12:32:10,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:10,753 INFO L82 PathProgramCache]: Analyzing trace with hash 74854, now seen corresponding path program 1 times [2020-07-01 12:32:10,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:10,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656246848] [2020-07-01 12:32:10,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:10,763 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:10,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:10,763 INFO L82 PathProgramCache]: Analyzing trace with hash 2387, now seen corresponding path program 2 times [2020-07-01 12:32:10,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:10,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451081870] [2020-07-01 12:32:10,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:10,772 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:10,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:10,772 INFO L82 PathProgramCache]: Analyzing trace with hash 71936120, now seen corresponding path program 1 times [2020-07-01 12:32:10,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:10,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856008593] [2020-07-01 12:32:10,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:10,785 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:10,804 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:32:10,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:32:10,805 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:32:10,805 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:32:10,805 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:32:10,805 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:10,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:32:10,805 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:32:10,805 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:32:10,806 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:32:10,806 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:32:10,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:10,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:10,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:10,906 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:32:10,906 INFO L404 LassoAnalysis]: Checking for nontermination... 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 12:32:10,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:10,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:10,915 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:10,915 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:10,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:10,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:10,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:10,955 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:10,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:10,990 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:11,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:32:11,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:11,652 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:32:11,656 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:32:11,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:32:11,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:32:11,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:32:11,656 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:32:11,656 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:11,656 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:32:11,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:32:11,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:32:11,657 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:32:11,657 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:32:11,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:11,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:11,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:11,736 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:32:11,736 INFO L489 LassoAnalysis]: Using template 'affine'. 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 12:32:11,739 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 12:32:11,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:11,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:11,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:11,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:11,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:32:11,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:32:11,750 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 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:11,782 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 12:32:11,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:11,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:11,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:11,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:11,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:32:11,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:32:11,792 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:11,825 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 12:32:11,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:11,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:32:11,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:11,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:11,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:11,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:32:11,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:32:11,834 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:32:11,841 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:32:11,841 INFO L444 ModelExtractionUtils]: 2 out of 5 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:11,849 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:32:11,850 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:32:11,850 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:32:11,850 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 12:32:11,881 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:32:11,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:32:11,899 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:32:11,900 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:32:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:32:11,904 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:32:11,905 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:32:11,916 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 12:32:11,931 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:32:11,932 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:32:11,932 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 15 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-07-01 12:32:11,966 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 15 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 12 states and 20 transitions. Complement of second has 5 states. [2020-07-01 12:32:11,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 12:32:11,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:32:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-07-01 12:32:11,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:32:11,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:11,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 12:32:11,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:11,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 12:32:11,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:11,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 20 transitions. [2020-07-01 12:32:11,971 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 12:32:11,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 20 transitions. [2020-07-01 12:32:11,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-01 12:32:11,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 12:32:11,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 20 transitions. [2020-07-01 12:32:11,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:32:11,972 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 20 transitions. [2020-07-01 12:32:11,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 20 transitions. [2020-07-01 12:32:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2020-07-01 12:32:11,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 12:32:11,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 12:32:11,974 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 12:32:11,974 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 12:32:11,975 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:32:11,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-07-01 12:32:11,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:32:11,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:32:11,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:32:11,976 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 12:32:11,976 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:32:11,976 INFO L794 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L20: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~x~0] 121#L20 [57] L20-->L20-2: Formula: (>= v_ULTIMATE.start_main_~x~0_9 0) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 122#L20-2 [58] L20-2-->L22-1: Formula: (>= v_ULTIMATE.start_main_~y~0_10 0) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 116#L22-1 [44] L22-1-->L25-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~r~0_5 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~r~0] 118#L25-2 [2020-07-01 12:32:11,976 INFO L796 eck$LassoCheckResult]: Loop: 118#L25-2 [50] L25-2-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~r~0_7 (+ (* v_ULTIMATE.start_main_~y~0_14 (- 1)) v_ULTIMATE.start_main_~r~0_8)) (<= v_ULTIMATE.start_main_~y~0_14 v_ULTIMATE.start_main_~r~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~r~0] 118#L25-2 [2020-07-01 12:32:11,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:11,977 INFO L82 PathProgramCache]: Analyzing trace with hash 2320735, now seen corresponding path program 1 times [2020-07-01 12:32:11,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:11,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716271192] [2020-07-01 12:32:11,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:11,985 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:11,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:11,985 INFO L82 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 1 times [2020-07-01 12:32:11,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:11,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855197439] [2020-07-01 12:32:11,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:11,992 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:11,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:11,992 INFO L82 PathProgramCache]: Analyzing trace with hash 71942835, now seen corresponding path program 1 times [2020-07-01 12:32:11,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:32:11,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103240324] [2020-07-01 12:32:11,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:32:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:32:12,005 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:32:12,057 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:32:12,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:32:12,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:32:12,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:32:12,057 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:32:12,058 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:12,058 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:32:12,058 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:32:12,058 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 12:32:12,058 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:32:12,058 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:32:12,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,167 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:32:12,167 INFO L404 LassoAnalysis]: Checking for nontermination... 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 12:32:12,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:12,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:12,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:12,184 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:32:12,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:12,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:12,220 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:12,221 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:12,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:12,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:12,257 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:12,257 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:12,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:12,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:12,294 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:12,294 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:12,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:12,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:12,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:32:12,331 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:12,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:32:12,379 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:32:12,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:32:12,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:32:12,585 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:32:12,588 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:32:12,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:32:12,588 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:32:12,588 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:32:12,588 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:32:12,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:12,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:32:12,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:32:12,589 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 12:32:12,589 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:32:12,589 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:32:12,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:32:12,678 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:32:12,678 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:12,681 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 12:32:12,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:12,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:32:12,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:12,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:12,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:12,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:32:12,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:32:12,686 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:12,717 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 12:32:12,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:12,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:32:12,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:12,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:12,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:12,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:32:12,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:32:12,722 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:12,754 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 12:32:12,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:12,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:32:12,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:12,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:12,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:12,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:32:12,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:32:12,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:12,792 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 12:32:12,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:12,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:12,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:12,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:12,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:32:12,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:32:12,801 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:12,833 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 12:32:12,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:32:12,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:32:12,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:32:12,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:32:12,839 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:32:12,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:32:12,847 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:32:12,860 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-07-01 12:32:12,860 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:32:12,863 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:32:12,867 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 12:32:12,867 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:32:12,867 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0) = 1*ULTIMATE.start_main_~r~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-07-01 12:32:12,899 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 12:32:12,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:32:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:32:12,926 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 12:32:12,927 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:32:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:32:12,931 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:32:12,931 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:32:12,931 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 12:32:12,940 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:32:12,940 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:32:12,940 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 2 states. [2020-07-01 12:32:12,971 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 2 states. Result 15 states and 24 transitions. Complement of second has 6 states. [2020-07-01 12:32:12,971 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 12:32:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:32:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-07-01 12:32:12,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-01 12:32:12,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:12,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-01 12:32:12,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:12,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 12:32:12,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:32:12,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 24 transitions. [2020-07-01 12:32:12,975 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:32:12,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-07-01 12:32:12,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:32:12,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:32:12,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:32:12,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:32:12,976 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:32:12,976 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:32:12,976 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:32:12,976 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:32:12,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:32:12,977 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:32:12,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:32:12,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:32:12 BasicIcfg [2020-07-01 12:32:12,983 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:32:12,986 INFO L168 Benchmark]: Toolchain (without parser) took 4327.04 ms. Allocated memory was 649.6 MB in the beginning and 764.4 MB in the end (delta: 114.8 MB). Free memory was 561.7 MB in the beginning and 648.1 MB in the end (delta: -86.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:32:12,986 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:32:12,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.56 ms. Allocated memory was 649.6 MB in the beginning and 699.4 MB in the end (delta: 49.8 MB). Free memory was 561.7 MB in the beginning and 663.8 MB in the end (delta: -102.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:32:12,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.40 ms. Allocated memory is still 699.4 MB. Free memory was 663.8 MB in the beginning and 662.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:32:12,988 INFO L168 Benchmark]: Boogie Preprocessor took 19.85 ms. Allocated memory is still 699.4 MB. Free memory was 662.5 MB in the beginning and 661.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:32:12,988 INFO L168 Benchmark]: RCFGBuilder took 222.09 ms. Allocated memory is still 699.4 MB. Free memory was 661.1 MB in the beginning and 645.4 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:32:12,989 INFO L168 Benchmark]: BlockEncodingV2 took 70.26 ms. Allocated memory is still 699.4 MB. Free memory was 645.4 MB in the beginning and 638.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:32:12,989 INFO L168 Benchmark]: TraceAbstraction took 153.09 ms. Allocated memory is still 699.4 MB. Free memory was 638.9 MB in the beginning and 630.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:32:12,990 INFO L168 Benchmark]: BuchiAutomizer took 3533.04 ms. Allocated memory was 699.4 MB in the beginning and 764.4 MB in the end (delta: 65.0 MB). Free memory was 629.5 MB in the beginning and 648.1 MB in the end (delta: -18.6 MB). Peak memory consumption was 46.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:32:12,994 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 5 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 289.56 ms. Allocated memory was 649.6 MB in the beginning and 699.4 MB in the end (delta: 49.8 MB). Free memory was 561.7 MB in the beginning and 663.8 MB in the end (delta: -102.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.40 ms. Allocated memory is still 699.4 MB. Free memory was 663.8 MB in the beginning and 662.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.85 ms. Allocated memory is still 699.4 MB. Free memory was 662.5 MB in the beginning and 661.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 222.09 ms. Allocated memory is still 699.4 MB. Free memory was 661.1 MB in the beginning and 645.4 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.26 ms. Allocated memory is still 699.4 MB. Free memory was 645.4 MB in the beginning and 638.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.09 ms. Allocated memory is still 699.4 MB. Free memory was 638.9 MB in the beginning and 630.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3533.04 ms. Allocated memory was 699.4 MB in the beginning and 764.4 MB in the end (delta: 65.0 MB). Free memory was 629.5 MB in the beginning and 648.1 MB in the end (delta: -18.6 MB). Peak memory consumption was 46.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function r and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 33 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf97 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf90 smp100 dnf100 smp100 tf105 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:32:05.356 ----------------------------------------------- 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_HSLH4F/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:32:13.426 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check