/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 12:23:36,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:23:36,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:23:36,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:23:36,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:23:36,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:23:36,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:23:36,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:23:36,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:23:36,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:23:36,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:23:36,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:23:36,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:23:36,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:23:36,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:23:36,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:23:36,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:23:36,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:23:36,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:23:36,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:23:36,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:23:36,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:23:36,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:23:36,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:23:36,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:23:36,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:23:36,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:23:36,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:23:36,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:23:36,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:23:36,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:23:36,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:23:36,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:23:36,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:23:36,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:23:36,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:23:36,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:23:36,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:23:36,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:23:36,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:23:36,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:23:36,978 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:23:36,993 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:23:36,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:23:36,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:23:36,994 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:23:36,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:23:36,994 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:23:36,995 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:23:36,995 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:23:36,995 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:23:36,995 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:23:36,995 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:23:36,996 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:23:36,996 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:23:36,996 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:23:36,996 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:36,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:23:36,996 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:23:36,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:23:36,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:23:36,997 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:23:36,997 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:23:36,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:23:36,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:23:36,998 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:23:36,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:23:36,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:23:36,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:23:36,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:23:36,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:23:37,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:23:37,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:23:37,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:23:37,182 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:23:37,183 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:23:37,183 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:23:37,250 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_1IjnRr/tmp/a4537bf6e9e24a64acff39ee3c3f6d10/FLAG3a5583c85 [2020-07-01 12:23:37,585 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:23:37,586 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:23:37,592 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_1IjnRr/tmp/a4537bf6e9e24a64acff39ee3c3f6d10/FLAG3a5583c85 [2020-07-01 12:23:37,991 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_1IjnRr/tmp/a4537bf6e9e24a64acff39ee3c3f6d10 [2020-07-01 12:23:38,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:23:38,004 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:23:38,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:23:38,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:23:38,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:23:38,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:23:37" (1/1) ... [2020-07-01 12:23:38,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f459f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38, skipping insertion in model container [2020-07-01 12:23:38,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:23:37" (1/1) ... [2020-07-01 12:23:38,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:23:38,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:23:38,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:23:38,270 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:23:38,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:23:38,301 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:23:38,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38 WrapperNode [2020-07-01 12:23:38,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:23:38,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:23:38,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:23:38,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:23:38,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:23:38,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:23:38,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:23:38,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:23:38,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:23:38,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:23:38,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:23:38,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:23:38,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (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 12:23:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:23:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:23:38,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:23:38,583 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:23:38,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:23:38 BoogieIcfgContainer [2020-07-01 12:23:38,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:23:38,588 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:23:38,588 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:23:38,590 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:23:38,590 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:23:38" (1/1) ... [2020-07-01 12:23:38,603 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 12:23:38,605 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:23:38,605 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:23:38,606 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:23:38,606 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:23:38,608 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:23:38,609 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:23:38,609 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:23:38,622 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:23:38,630 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:23:38,635 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:23:38,637 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:23:38,652 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 12:23:38,654 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:23:38,656 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:23:38,656 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:23:38,656 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:23:38,657 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:23:38,657 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 12:23:38,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:23:38 BasicIcfg [2020-07-01 12:23:38,658 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:23:38,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:23:38,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:23:38,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:23:38,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:23:37" (1/4) ... [2020-07-01 12:23:38,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae5bac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:23:38, skipping insertion in model container [2020-07-01 12:23:38,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (2/4) ... [2020-07-01 12:23:38,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae5bac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:23:38, skipping insertion in model container [2020-07-01 12:23:38,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:23:38" (3/4) ... [2020-07-01 12:23:38,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae5bac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:23:38, skipping insertion in model container [2020-07-01 12:23:38,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:23:38" (4/4) ... [2020-07-01 12:23:38,666 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:23:38,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:23:38,684 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:23:38,698 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:23:38,720 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:23:38,721 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:23:38,721 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:23:38,721 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:23:38,721 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:23:38,721 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:23:38,722 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:23:38,722 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:23:38,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 12:23:38,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:23:38,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 12:23:38,795 INFO L271 CegarLoopResult]: At program point L18-2(lines 17 25) the Hoare annotation is: true [2020-07-01 12:23:38,795 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:23:38,795 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-01 12:23:38,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:23:38 BasicIcfg [2020-07-01 12:23:38,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:23:38,804 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:23:38,804 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:23:38,808 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:23:38,808 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:23:38,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:23:37" (1/5) ... [2020-07-01 12:23:38,809 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43a4323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:23:38, skipping insertion in model container [2020-07-01 12:23:38,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:23:38,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:23:38" (2/5) ... [2020-07-01 12:23:38,810 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43a4323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:23:38, skipping insertion in model container [2020-07-01 12:23:38,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:23:38,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:23:38" (3/5) ... [2020-07-01 12:23:38,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43a4323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:23:38, skipping insertion in model container [2020-07-01 12:23:38,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:23:38,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:23:38" (4/5) ... [2020-07-01 12:23:38,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43a4323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:23:38, skipping insertion in model container [2020-07-01 12:23:38,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:23:38,812 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:23:38" (5/5) ... [2020-07-01 12:23:38,813 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:23:38,843 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:23:38,844 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:23:38,844 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:23:38,844 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:23:38,844 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:23:38,844 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:23:38,845 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:23:38,845 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:23:38,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:23:38,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:23:38,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:23:38,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:23:38,872 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:23:38,872 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:23:38,873 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:23:38,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:23:38,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:23:38,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:23:38,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:23:38,874 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:23:38,874 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:23:38,879 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0] 4#L18-2true [2020-07-01 12:23:38,879 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [29] L18-2-->L18: Formula: (< 0 v_ULTIMATE.start_main_~q~0_7) InVars {ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 5#L18true [34] L18-->L18-2: Formula: (and (>= 0 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (= v_ULTIMATE.start_main_~q~0_9 (+ v_ULTIMATE.start_main_~q~0_10 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0, ULTIMATE.start_main_~y~0] 4#L18-2true [2020-07-01 12:23:38,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:38,886 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-07-01 12:23:38,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:38,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823066250] [2020-07-01 12:23:38,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:38,969 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:38,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:38,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 1 times [2020-07-01 12:23:38,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:38,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882111609] [2020-07-01 12:23:38,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:38,989 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:38,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:38,991 INFO L82 PathProgramCache]: Analyzing trace with hash 55710, now seen corresponding path program 1 times [2020-07-01 12:23:38,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:38,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938982640] [2020-07-01 12:23:38,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:39,004 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:39,052 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:23:39,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:23:39,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:23:39,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:23:39,053 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:23:39,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:39,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:23:39,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:23:39,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:23:39,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:23:39,054 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:23:39,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,199 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:23:39,200 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 12:23:39,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:39,205 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:23:39,215 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:23:39,215 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 12:23:39,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:39,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:23:39,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:23:39,254 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 12:23:39,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:39,288 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 12:23:39,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:23:39,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:23:39,344 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:23:39,344 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1}, {ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=0}] Lambdas: [1, 7, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:39,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:39,378 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:39,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:23:39,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:23:39,451 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:23:39,454 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:23:39,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:23:39,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:23:39,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:23:39,454 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:23:39,454 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:39,455 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:23:39,455 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:23:39,455 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:23:39,455 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:23:39,455 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:23:39,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,543 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:23:39,549 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:39,553 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 12:23:39,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:39,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:39,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:39,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:39,564 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:23:39,564 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:23:39,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:39,606 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 12:23:39,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:39,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:39,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:39,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:39,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:23:39,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:23:39,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:39,650 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 12:23:39,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:39,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:23:39,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:39,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:39,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:39,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:23:39,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:23:39,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:39,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:23:39,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:39,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:23:39,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:39,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:39,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:39,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:23:39,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:23:39,698 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:23:39,702 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:23:39,702 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:39,708 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:23:39,708 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:23:39,708 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:23:39,709 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0) = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] [2020-07-01 12:23:39,744 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:23:39,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:23:39,784 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:23:39,786 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:23:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:23:39,799 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:23:39,799 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:23:39,816 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 12:23:39,846 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:23:39,852 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 12:23:39,853 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 12:23:39,885 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-07-01 12:23:39,885 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 12:23:39,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:23:39,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 12:23:39,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:23:39,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:39,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:23:39,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:39,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:23:39,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:39,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 12:23:39,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:23:39,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 12:23:39,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 12:23:39,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 12:23:39,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 12:23:39,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:23:39,906 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 12:23:39,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 12:23:39,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 12:23:39,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 12:23:39,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 12:23:39,934 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 12:23:39,934 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 12:23:39,934 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:23:39,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 12:23:39,935 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:23:39,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:23:39,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:23:39,936 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:23:39,936 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:23:39,936 INFO L794 eck$LassoCheckResult]: Stem: 48#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0] 49#L18-2 [29] L18-2-->L18: Formula: (< 0 v_ULTIMATE.start_main_~q~0_7) InVars {ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 47#L18 [30] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 0) (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~q~0_8 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 43#L18-2 [2020-07-01 12:23:39,936 INFO L796 eck$LassoCheckResult]: Loop: 43#L18-2 [29] L18-2-->L18: Formula: (< 0 v_ULTIMATE.start_main_~q~0_7) InVars {ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 44#L18 [34] L18-->L18-2: Formula: (and (>= 0 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (= v_ULTIMATE.start_main_~q~0_9 (+ v_ULTIMATE.start_main_~q~0_10 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0, ULTIMATE.start_main_~y~0] 43#L18-2 [2020-07-01 12:23:39,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:39,937 INFO L82 PathProgramCache]: Analyzing trace with hash 55706, now seen corresponding path program 1 times [2020-07-01 12:23:39,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:39,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120268516] [2020-07-01 12:23:39,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:39,948 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:39,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:39,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 2 times [2020-07-01 12:23:39,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:39,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477011091] [2020-07-01 12:23:39,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:39,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:39,957 INFO L82 PathProgramCache]: Analyzing trace with hash 53534399, now seen corresponding path program 1 times [2020-07-01 12:23:39,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:39,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11345065] [2020-07-01 12:23:39,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:39,972 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:39,990 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:23:39,990 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:23:39,990 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:23:39,990 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:23:39,990 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:23:39,990 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:39,990 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:23:39,991 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:23:39,991 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:23:39,991 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:23:39,991 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:23:39,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:39,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,081 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:23:40,081 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:40,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:40,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:23:40,098 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:23:40,098 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:40,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:40,134 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-01 12:23:40,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:23:40,173 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:40,211 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:23:40,214 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:23:40,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:23:40,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:23:40,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:23:40,214 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:23:40,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:40,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:23:40,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:23:40,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:23:40,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:23:40,215 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:23:40,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,307 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:23:40,308 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:40,312 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 12:23:40,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:40,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:40,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:40,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:40,317 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:23:40,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:23:40,322 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:40,356 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 12:23:40,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:40,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:23:40,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:40,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:40,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:40,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:23:40,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:23:40,364 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:23:40,368 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:23:40,369 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:40,377 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:23:40,377 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:23:40,377 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:23:40,377 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0) = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] [2020-07-01 12:23:40,409 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:23:40,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:23:40,432 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:23:40,432 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:23:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:23:40,439 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:23:40,440 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:23:40,451 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 12:23:40,474 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:23:40,475 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 12:23:40,475 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 12:23:40,492 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 9 states and 13 transitions. Complement of second has 4 states. [2020-07-01 12:23:40,492 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 12:23:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:23:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 12:23:40,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:23:40,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:40,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 12:23:40,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:40,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 12:23:40,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:40,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-07-01 12:23:40,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:23:40,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2020-07-01 12:23:40,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 12:23:40,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 12:23:40,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-07-01 12:23:40,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:23:40,499 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-01 12:23:40,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-07-01 12:23:40,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-07-01 12:23:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 12:23:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-01 12:23:40,500 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 12:23:40,500 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 12:23:40,500 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:23:40,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-07-01 12:23:40,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:23:40,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:23:40,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:23:40,501 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:23:40,501 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:23:40,502 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0] 95#L18-2 [2020-07-01 12:23:40,502 INFO L796 eck$LassoCheckResult]: Loop: 95#L18-2 [29] L18-2-->L18: Formula: (< 0 v_ULTIMATE.start_main_~q~0_7) InVars {ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 97#L18 [30] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 0) (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~q~0_8 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~y~0] 95#L18-2 [2020-07-01 12:23:40,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:40,503 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 2 times [2020-07-01 12:23:40,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:40,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027436249] [2020-07-01 12:23:40,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:40,509 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:40,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:40,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1890, now seen corresponding path program 1 times [2020-07-01 12:23:40,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:40,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103311277] [2020-07-01 12:23:40,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:40,517 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:40,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:40,518 INFO L82 PathProgramCache]: Analyzing trace with hash 55706, now seen corresponding path program 2 times [2020-07-01 12:23:40,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:23:40,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377739654] [2020-07-01 12:23:40,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:23:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:23:40,527 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:23:40,545 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:23:40,545 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:23:40,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:23:40,546 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:23:40,546 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:23:40,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:40,546 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:23:40,546 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:23:40,546 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:23:40,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:23:40,547 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:23:40,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,630 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:23:40,630 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:40,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:40,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:23:40,644 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:23:40,644 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 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 12:23:40,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:40,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:23:40,683 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:23:40,683 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=4, ULTIMATE.start_main_~q~0=4} Honda state: {ULTIMATE.start_main_#t~nondet2=4, ULTIMATE.start_main_~q~0=4} 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 12:23:40,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:23:40,716 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:23:40,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:23:40,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:23:40,790 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:23:40,792 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:23:40,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:23:40,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:23:40,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:23:40,792 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:23:40,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:40,792 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:23:40,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:23:40,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:23:40,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:23:40,793 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:23:40,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:23:40,889 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:23:40,889 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:40,893 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 12:23:40,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:40,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:40,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:40,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:40,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:23:40,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:23:40,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:23:40,941 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 12:23:40,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:40,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:23:40,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:40,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:40,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:40,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:23:40,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:23:40,948 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 12:23:40,980 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 12:23:40,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:23:40,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:23:40,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:23:40,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:23:40,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:23:40,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:23:40,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:23:40,986 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:23:40,990 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:23:40,991 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:23:40,993 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:23:40,993 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:23:40,994 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:23:40,994 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 12:23:41,023 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:23:41,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:23:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:23:41,042 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:23:41,042 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:23:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:23:41,048 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:23:41,049 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:23:41,049 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 12:23:41,049 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:23:41,050 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:23:41,050 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-07-01 12:23:41,059 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2020-07-01 12:23:41,060 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 12:23:41,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:23:41,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 12:23:41,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:23:41,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:41,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:23:41,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:41,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:23:41,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:23:41,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2020-07-01 12:23:41,063 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:23:41,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-01 12:23:41,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:23:41,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:23:41,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:23:41,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:23:41,064 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:23:41,064 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:23:41,064 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:23:41,064 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:23:41,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:23:41,065 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:23:41,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:23:41,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:23:41 BasicIcfg [2020-07-01 12:23:41,071 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:23:41,073 INFO L168 Benchmark]: Toolchain (without parser) took 3068.95 ms. Allocated memory was 649.6 MB in the beginning and 757.1 MB in the end (delta: 107.5 MB). Free memory was 557.3 MB in the beginning and 682.6 MB in the end (delta: -125.3 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:23:41,074 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:23:41,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.93 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 557.3 MB in the beginning and 653.3 MB in the end (delta: -96.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:23:41,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.96 ms. Allocated memory is still 690.0 MB. Free memory was 653.3 MB in the beginning and 652.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:23:41,076 INFO L168 Benchmark]: Boogie Preprocessor took 19.79 ms. Allocated memory is still 690.0 MB. Free memory was 652.0 MB in the beginning and 650.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:23:41,076 INFO L168 Benchmark]: RCFGBuilder took 229.15 ms. Allocated memory is still 690.0 MB. Free memory was 650.6 MB in the beginning and 636.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:23:41,077 INFO L168 Benchmark]: BlockEncodingV2 took 70.35 ms. Allocated memory is still 690.0 MB. Free memory was 636.3 MB in the beginning and 629.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:23:41,077 INFO L168 Benchmark]: TraceAbstraction took 144.69 ms. Allocated memory is still 690.0 MB. Free memory was 629.8 MB in the beginning and 621.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:23:41,078 INFO L168 Benchmark]: BuchiAutomizer took 2266.70 ms. Allocated memory was 690.0 MB in the beginning and 757.1 MB in the end (delta: 67.1 MB). Free memory was 621.7 MB in the beginning and 682.6 MB in the end (delta: -60.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:23:41,081 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 296.93 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 557.3 MB in the beginning and 653.3 MB in the end (delta: -96.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.96 ms. Allocated memory is still 690.0 MB. Free memory was 653.3 MB in the beginning and 652.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.79 ms. Allocated memory is still 690.0 MB. Free memory was 652.0 MB in the beginning and 650.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 229.15 ms. Allocated memory is still 690.0 MB. Free memory was 650.6 MB in the beginning and 636.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.35 ms. Allocated memory is still 690.0 MB. Free memory was 636.3 MB in the beginning and 629.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.69 ms. Allocated memory is still 690.0 MB. Free memory was 629.8 MB in the beginning and 621.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2266.70 ms. Allocated memory was 690.0 MB in the beginning and 757.1 MB in the end (delta: 67.1 MB). Free memory was 621.7 MB in the beginning and 682.6 MB in the end (delta: -60.8 MB). Peak memory consumption was 6.3 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: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function q and consists of 3 locations. One nondeterministic module has affine ranking function q and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 15 SDslu, 1 SDs, 0 SdLazy, 22 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax173 hnf100 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf114 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:23:34.702 ----------------------------------------------- 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_1IjnRr/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:23:41.522 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check