/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:45:36,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:45:36,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:45:36,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:45:36,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:45:36,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:45:36,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:45:36,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:45:36,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:45:36,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:45:36,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:45:36,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:45:36,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:45:36,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:45:36,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:45:36,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:45:36,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:45:36,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:45:36,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:45:36,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:45:36,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:45:36,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:45:36,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:45:36,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:45:36,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:45:36,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:45:36,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:45:36,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:45:36,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:45:36,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:45:36,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:45:36,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:45:36,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:45:36,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:45:36,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:45:36,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:45:36,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:45:36,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:45:36,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:45:36,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:45:36,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:45:36,860 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:45:36,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:45:36,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:45:36,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:45:36,876 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:45:36,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:45:36,876 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:45:36,876 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:45:36,876 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:45:36,877 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:45:36,877 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:45:36,877 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:45:36,877 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:45:36,877 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:45:36,877 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:45:36,878 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:36,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:45:36,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:45:36,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:45:36,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:45:36,879 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:45:36,879 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:45:36,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:45:36,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:45:36,879 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:45:36,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:45:36,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:45:36,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:45:36,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:45:36,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:45:37,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:45:37,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:45:37,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:45:37,067 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:45:37,068 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:45:37,068 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:45:37,132 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_9TGcMb/tmp/459e426347554a8e97d6f7c628421751/FLAG9390da0b6 [2020-07-01 11:45:37,492 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:45:37,492 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:45:37,499 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_9TGcMb/tmp/459e426347554a8e97d6f7c628421751/FLAG9390da0b6 [2020-07-01 11:45:37,898 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_9TGcMb/tmp/459e426347554a8e97d6f7c628421751 [2020-07-01 11:45:37,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:45:37,910 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:45:37,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:45:37,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:45:37,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:45:37,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:45:37" (1/1) ... [2020-07-01 11:45:37,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@687a6930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:37, skipping insertion in model container [2020-07-01 11:45:37,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:45:37" (1/1) ... [2020-07-01 11:45:37,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:45:37,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:45:38,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:45:38,174 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:45:38,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:45:38,205 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:45:38,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38 WrapperNode [2020-07-01 11:45:38,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:45:38,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:45:38,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:45:38,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:45:38,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:45:38,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:45:38,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:45:38,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:45:38,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:45:38,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:45:38,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:45:38,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:45:38,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:45:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2020-07-01 11:45:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2020-07-01 11:45:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:45:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:45:38,482 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:45:38,482 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 11:45:38,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:45:38 BoogieIcfgContainer [2020-07-01 11:45:38,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:45:38,487 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:45:38,487 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:45:38,489 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:45:38,490 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:45:38" (1/1) ... [2020-07-01 11:45:38,503 INFO L313 BlockEncoder]: Initial Icfg 14 locations, 17 edges [2020-07-01 11:45:38,505 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:45:38,506 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:45:38,506 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:45:38,507 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:45:38,508 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:45:38,509 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:45:38,509 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:45:38,522 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:45:38,529 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:45:38,533 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:45:38,535 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:45:38,546 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:45:38,548 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-07-01 11:45:38,550 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:45:38,550 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:45:38,550 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:45:38,551 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:45:38,551 INFO L313 BlockEncoder]: Encoded RCFG 10 locations, 13 edges [2020-07-01 11:45:38,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:45:38 BasicIcfg [2020-07-01 11:45:38,552 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:45:38,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:45:38,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:45:38,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:45:38,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:45:37" (1/4) ... [2020-07-01 11:45:38,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3493146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:45:38, skipping insertion in model container [2020-07-01 11:45:38,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (2/4) ... [2020-07-01 11:45:38,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3493146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:45:38, skipping insertion in model container [2020-07-01 11:45:38,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:45:38" (3/4) ... [2020-07-01 11:45:38,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3493146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:45:38, skipping insertion in model container [2020-07-01 11:45:38,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:45:38" (4/4) ... [2020-07-01 11:45:38,561 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:45:38,571 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:45:38,578 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:45:38,591 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:45:38,614 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:45:38,614 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:45:38,615 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:45:38,615 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:45:38,615 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:45:38,615 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:45:38,615 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:45:38,615 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:45:38,632 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-07-01 11:45:38,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:45:38,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-07-01 11:45:38,714 INFO L271 CegarLoopResult]: At program point rec1ENTRY(lines 5 9) the Hoare annotation is: true [2020-07-01 11:45:38,714 INFO L268 CegarLoopResult]: For program point rec1FINAL(lines 5 9) no Hoare annotation was computed. [2020-07-01 11:45:38,714 INFO L268 CegarLoopResult]: For program point rec1EXIT(lines 5 9) no Hoare annotation was computed. [2020-07-01 11:45:38,714 INFO L271 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-07-01 11:45:38,715 INFO L271 CegarLoopResult]: At program point L8-1(line 8) the Hoare annotation is: true [2020-07-01 11:45:38,715 INFO L268 CegarLoopResult]: For program point L6(lines 6 7) no Hoare annotation was computed. [2020-07-01 11:45:38,715 INFO L271 CegarLoopResult]: At program point L8-2(line 8) the Hoare annotation is: true [2020-07-01 11:45:38,715 INFO L268 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed. [2020-07-01 11:45:38,715 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:45:38,716 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-01 11:45:38,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:45:38 BasicIcfg [2020-07-01 11:45:38,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:45:38,720 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:45:38,720 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:45:38,724 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:45:38,725 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:45:38,725 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:45:37" (1/5) ... [2020-07-01 11:45:38,726 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e1edb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:45:38, skipping insertion in model container [2020-07-01 11:45:38,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:45:38,726 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:45:38" (2/5) ... [2020-07-01 11:45:38,727 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e1edb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:45:38, skipping insertion in model container [2020-07-01 11:45:38,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:45:38,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:45:38" (3/5) ... [2020-07-01 11:45:38,727 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e1edb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:45:38, skipping insertion in model container [2020-07-01 11:45:38,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:45:38,728 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:45:38" (4/5) ... [2020-07-01 11:45:38,728 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e1edb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:45:38, skipping insertion in model container [2020-07-01 11:45:38,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:45:38,728 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:45:38" (5/5) ... [2020-07-01 11:45:38,730 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:45:38,760 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:45:38,760 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:45:38,761 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:45:38,761 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:45:38,761 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:45:38,761 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:45:38,761 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:45:38,761 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:45:38,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-07-01 11:45:38,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:45:38,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:45:38,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:45:38,794 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:45:38,794 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:45:38,794 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:45:38,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-07-01 11:45:38,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:45:38,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:45:38,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:45:38,797 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:45:38,797 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:45:38,802 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [30] ULTIMATE.startENTRY-->L19: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 10#L19true [29] L19-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 6#rec1ENTRYtrue [2020-07-01 11:45:38,802 INFO L796 eck$LassoCheckResult]: Loop: 6#rec1ENTRYtrue [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 11#L6true [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 9#L8true [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 6#rec1ENTRYtrue [2020-07-01 11:45:38,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:38,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1920, now seen corresponding path program 1 times [2020-07-01 11:45:38,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:38,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008256525] [2020-07-01 11:45:38,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:38,886 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:45:38,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:38,888 INFO L82 PathProgramCache]: Analyzing trace with hash 55151, now seen corresponding path program 1 times [2020-07-01 11:45:38,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:38,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990676895] [2020-07-01 11:45:38,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:38,907 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:45:38,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:38,909 INFO L82 PathProgramCache]: Analyzing trace with hash 57224080, now seen corresponding path program 1 times [2020-07-01 11:45:38,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:38,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104132029] [2020-07-01 11:45:38,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:38,920 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:45:39,006 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:45:39,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:45:39,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:45:39,008 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:45:39,008 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:45:39,008 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:39,008 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:45:39,008 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:45:39,009 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:45:39,009 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:45:39,009 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:45:39,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,121 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:45:39,122 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:39,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:39,130 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:39,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:45:39,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:39,248 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:45:39,250 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:45:39,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:45:39,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:45:39,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:45:39,251 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:45:39,251 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:39,251 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:45:39,251 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:45:39,251 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:45:39,251 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:45:39,252 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:45:39,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,329 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:45:39,335 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:39,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:39,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:39,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:39,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:39,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:39,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:39,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:39,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:39,353 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:45:39,360 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:45:39,361 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/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:39,366 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:45:39,367 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:45:39,368 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:45:39,368 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec1_#in~i) = 1*rec1_#in~i Supporting invariants [] [2020-07-01 11:45:39,402 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:45:39,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:39,452 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:45:39,454 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:39,475 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:45:39,476 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:45:39,527 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:45:39,532 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:45:39,533 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states. Second operand 4 states. [2020-07-01 11:45:39,606 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states.. Second operand 4 states. Result 32 states and 41 transitions. Complement of second has 16 states. [2020-07-01 11:45:39,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:45:39,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:45:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-07-01 11:45:39,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 11:45:39,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:39,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:45:39,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:39,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 11:45:39,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:39,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 41 transitions. [2020-07-01 11:45:39,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:45:39,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 21 states and 30 transitions. [2020-07-01 11:45:39,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-07-01 11:45:39,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-07-01 11:45:39,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2020-07-01 11:45:39,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:45:39,635 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2020-07-01 11:45:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2020-07-01 11:45:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-07-01 11:45:39,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 11:45:39,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-07-01 11:45:39,668 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-07-01 11:45:39,669 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-07-01 11:45:39,669 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:45:39,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-07-01 11:45:39,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:45:39,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:45:39,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:45:39,671 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:45:39,671 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2020-07-01 11:45:39,672 INFO L794 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L19: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 104#L19 [29] L19-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 107#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 108#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 99#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 109#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 110#L6 [34] L6-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 111#rec1FINAL [26] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 98#rec1EXIT >[41] rec1EXIT-->L8-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 100#L8-1 [2020-07-01 11:45:39,672 INFO L796 eck$LassoCheckResult]: Loop: 100#L8-1 [32] L8-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i]< 112#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 114#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 102#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 112#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 114#L6 [34] L6-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 105#rec1FINAL [26] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 113#rec1EXIT >[41] rec1EXIT-->L8-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 100#L8-1 [2020-07-01 11:45:39,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:39,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1932213304, now seen corresponding path program 1 times [2020-07-01 11:45:39,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:39,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953459138] [2020-07-01 11:45:39,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:39,687 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:45:39,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:39,687 INFO L82 PathProgramCache]: Analyzing trace with hash 74335785, now seen corresponding path program 1 times [2020-07-01 11:45:39,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:39,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325880837] [2020-07-01 11:45:39,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:39,701 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:45:39,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:39,701 INFO L82 PathProgramCache]: Analyzing trace with hash -553495824, now seen corresponding path program 1 times [2020-07-01 11:45:39,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:39,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238590299] [2020-07-01 11:45:39,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-01 11:45:39,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238590299] [2020-07-01 11:45:39,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899883532] [2020-07-01 11:45:39,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 11:45:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:39,836 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:45:39,837 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-01 11:45:39,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-01 11:45:39,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2020-07-01 11:45:39,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868941071] [2020-07-01 11:45:39,986 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:45:39,986 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:45:39,986 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:45:39,986 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:45:39,986 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:45:39,986 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:39,987 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:45:39,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:45:39,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:45:39,987 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:45:39,987 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:45:39,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:39,993 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 11:45:40,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:40,072 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:45:40,072 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:40,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:40,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:40,084 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:40,085 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret2=0} Honda state: {rec1_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:40,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:40,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:40,122 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:40,122 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#res=0} Honda state: {rec1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:40,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:40,157 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:40,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:45:40,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:41,610 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:45:41,613 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:45:41,613 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:45:41,614 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:45:41,614 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:45:41,614 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:45:41,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:41,614 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:45:41,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:45:41,614 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:45:41,614 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:45:41,615 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:45:41,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:41,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:41,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:41,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:41,693 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:45:41,693 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:41,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:41,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:41,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:41,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:41,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:41,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:41,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:41,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:41,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:41,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:41,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:41,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:41,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:41,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:41,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:41,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:41,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:41,742 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:41,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:41,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:41,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:41,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:41,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:41,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:41,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:41,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:41,784 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:45:41,790 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:45:41,790 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:41,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:45:41,793 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:45:41,793 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:45:41,793 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec1_#t~ret0) = 1*rec1_#t~ret0 Supporting invariants [] [2020-07-01 11:45:41,824 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:45:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:41,865 INFO L264 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:45:41,867 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:41,917 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-01 11:45:41,919 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:45:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:42,065 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:45:42,066 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:42,110 INFO L98 LoopCannibalizer]: 6 predicates before loop cannibalization 10 predicates after loop cannibalization [2020-07-01 11:45:42,110 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 10 loop predicates [2020-07-01 11:45:42,110 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand 8 states. [2020-07-01 11:45:44,865 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 22 transitions. cyclomatic complexity: 7. Second operand 8 states. Result 13989 states and 28369 transitions. Complement of second has 7508 states. [2020-07-01 11:45:44,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 23 states 2 stem states 18 non-accepting loop states 2 accepting loop states [2020-07-01 11:45:44,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 11:45:44,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 104 transitions. [2020-07-01 11:45:44,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 104 transitions. Stem has 9 letters. Loop has 8 letters. [2020-07-01 11:45:44,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:44,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 104 transitions. Stem has 17 letters. Loop has 8 letters. [2020-07-01 11:45:44,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:44,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 104 transitions. Stem has 9 letters. Loop has 16 letters. [2020-07-01 11:45:44,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:44,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13989 states and 28369 transitions. [2020-07-01 11:45:45,284 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 62 [2020-07-01 11:45:45,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13989 states to 277 states and 449 transitions. [2020-07-01 11:45:45,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 242 [2020-07-01 11:45:45,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2020-07-01 11:45:45,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 277 states and 449 transitions. [2020-07-01 11:45:45,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:45:45,300 INFO L688 BuchiCegarLoop]: Abstraction has 277 states and 449 transitions. [2020-07-01 11:45:45,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states and 449 transitions. [2020-07-01 11:45:45,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 171. [2020-07-01 11:45:45,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-07-01 11:45:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 263 transitions. [2020-07-01 11:45:45,333 INFO L711 BuchiCegarLoop]: Abstraction has 171 states and 263 transitions. [2020-07-01 11:45:45,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:45:45,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 11:45:45,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-01 11:45:45,340 INFO L87 Difference]: Start difference. First operand 171 states and 263 transitions. Second operand 6 states. [2020-07-01 11:45:45,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:45:45,404 INFO L93 Difference]: Finished difference Result 161 states and 255 transitions. [2020-07-01 11:45:45,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-01 11:45:45,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 255 transitions. [2020-07-01 11:45:45,412 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-07-01 11:45:45,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 159 states and 252 transitions. [2020-07-01 11:45:45,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2020-07-01 11:45:45,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2020-07-01 11:45:45,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 252 transitions. [2020-07-01 11:45:45,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:45:45,418 INFO L688 BuchiCegarLoop]: Abstraction has 159 states and 252 transitions. [2020-07-01 11:45:45,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 252 transitions. [2020-07-01 11:45:45,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 123. [2020-07-01 11:45:45,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-01 11:45:45,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 184 transitions. [2020-07-01 11:45:45,431 INFO L711 BuchiCegarLoop]: Abstraction has 123 states and 184 transitions. [2020-07-01 11:45:45,431 INFO L591 BuchiCegarLoop]: Abstraction has 123 states and 184 transitions. [2020-07-01 11:45:45,431 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:45:45,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 184 transitions. [2020-07-01 11:45:45,433 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-07-01 11:45:45,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:45:45,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:45:45,434 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-07-01 11:45:45,435 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:45:45,435 INFO L794 eck$LassoCheckResult]: Stem: 22152#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L19: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 22153#L19 [29] L19-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 22175#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 22177#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 22186#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 22249#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 22261#L6 [34] L6-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 22263#rec1FINAL [26] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 22262#rec1EXIT >[41] rec1EXIT-->L8-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 22155#L8-1 [32] L8-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i]< 22154#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 22157#L6 [34] L6-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 22174#rec1FINAL [26] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 22266#rec1EXIT >[40] rec1EXIT-->L8-2: AOR: Formula: (= |v_rec1_#t~ret1_4| |v_rec1_#resOutParam_2|) InVars {rec1_#res=|v_rec1_#resOutParam_2|} OutVars{rec1_#t~ret1=|v_rec1_#t~ret1_4|} AuxVars[] AssignedVars[rec1_#t~ret1] LVA: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i] 22148#L8-2 [36] L8-2-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_3| |v_rec1_#t~ret1_5|) InVars {rec1_#t~ret1=|v_rec1_#t~ret1_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_3|} AuxVars[] AssignedVars[rec1_#in~i]< 22173#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 22178#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 22179#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 22188#rec1ENTRY [2020-07-01 11:45:45,435 INFO L796 eck$LassoCheckResult]: Loop: 22188#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 22229#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 22182#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 22188#rec1ENTRY [2020-07-01 11:45:45,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:45,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1324911227, now seen corresponding path program 1 times [2020-07-01 11:45:45,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:45,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888443786] [2020-07-01 11:45:45,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:45,490 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-01 11:45:45,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888443786] [2020-07-01 11:45:45,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:45:45,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-01 11:45:45,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554172545] [2020-07-01 11:45:45,491 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:45:45,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:45,492 INFO L82 PathProgramCache]: Analyzing trace with hash 55151, now seen corresponding path program 2 times [2020-07-01 11:45:45,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:45,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998422052] [2020-07-01 11:45:45,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:45,497 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:45:45,531 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:45:45,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:45:45,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:45:45,532 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:45:45,532 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:45:45,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:45,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:45:45,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:45:45,533 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:45:45,533 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:45:45,533 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:45:45,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,592 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:45:45,592 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:45,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:45,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:45,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:45,600 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret1=0} Honda state: {rec1_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:45,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:45,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:45,644 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:45,644 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret0=0} Honda state: {rec1_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:45,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:45,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:45,682 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:45,683 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_~i=0} Honda state: {rec1_~i=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-01 11:45:45,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:45,723 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:45,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:45,727 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret2=0} Honda state: {rec1_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:45,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:45,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:45,773 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:45,773 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#res=0} Honda state: {rec1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:45,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:45,861 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:45,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:45:45,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:45,977 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:45:45,980 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:45:45,981 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:45:45,981 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:45:45,981 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:45:45,981 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:45:45,981 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:45,981 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:45:45,981 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:45:45,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:45:45,982 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:45:45,982 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:45:45,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,993 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 11:45:45,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:45,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:46,037 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:45:46,037 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:46,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:46,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:46,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:46,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:46,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:46,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:46,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:46,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:46,048 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/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) [2020-07-01 11:45:46,082 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 Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:46,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:46,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:46,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:46,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:46,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:46,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:46,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:46,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:46,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:46,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:46,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:46,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:46,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:46,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:46,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:46,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:46,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:46,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:46,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:46,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:46,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:46,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:46,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:46,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:46,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:46,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:46,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:46,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:46,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:46,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:46,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:46,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:46,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:46,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:46,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:46,243 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:46,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:46,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:46,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:46,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:46,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:46,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:46,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:46,250 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:45:46,259 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:45:46,259 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/sandbox/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:46,264 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:45:46,264 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:45:46,264 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:45:46,264 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec1_#in~i) = 1*rec1_#in~i Supporting invariants [] [2020-07-01 11:45:46,295 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:45:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:46,351 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-01 11:45:46,353 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:46,388 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:45:46,389 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:45:46,455 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:45:46,455 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-07-01 11:45:46,456 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 123 states and 184 transitions. cyclomatic complexity: 64 Second operand 5 states. [2020-07-01 11:45:46,594 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 123 states and 184 transitions. cyclomatic complexity: 64. Second operand 5 states. Result 354 states and 433 transitions. Complement of second has 48 states. [2020-07-01 11:45:46,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:45:46,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:45:46,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2020-07-01 11:45:46,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 18 letters. Loop has 3 letters. [2020-07-01 11:45:46,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:46,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 21 letters. Loop has 3 letters. [2020-07-01 11:45:46,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:46,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 18 letters. Loop has 6 letters. [2020-07-01 11:45:46,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:46,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 354 states and 433 transitions. [2020-07-01 11:45:46,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2020-07-01 11:45:46,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 354 states to 164 states and 241 transitions. [2020-07-01 11:45:46,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 124 [2020-07-01 11:45:46,609 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 130 [2020-07-01 11:45:46,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 241 transitions. [2020-07-01 11:45:46,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:45:46,609 INFO L688 BuchiCegarLoop]: Abstraction has 164 states and 241 transitions. [2020-07-01 11:45:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 241 transitions. [2020-07-01 11:45:46,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 134. [2020-07-01 11:45:46,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-01 11:45:46,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 193 transitions. [2020-07-01 11:45:46,620 INFO L711 BuchiCegarLoop]: Abstraction has 134 states and 193 transitions. [2020-07-01 11:45:46,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:45:46,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 11:45:46,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-01 11:45:46,621 INFO L87 Difference]: Start difference. First operand 134 states and 193 transitions. Second operand 6 states. [2020-07-01 11:45:46,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:45:46,684 INFO L93 Difference]: Finished difference Result 153 states and 212 transitions. [2020-07-01 11:45:46,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-01 11:45:46,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 212 transitions. [2020-07-01 11:45:46,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2020-07-01 11:45:46,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 148 states and 203 transitions. [2020-07-01 11:45:46,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2020-07-01 11:45:46,692 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2020-07-01 11:45:46,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 203 transitions. [2020-07-01 11:45:46,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:45:46,693 INFO L688 BuchiCegarLoop]: Abstraction has 148 states and 203 transitions. [2020-07-01 11:45:46,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 203 transitions. [2020-07-01 11:45:46,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 137. [2020-07-01 11:45:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-07-01 11:45:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 187 transitions. [2020-07-01 11:45:46,701 INFO L711 BuchiCegarLoop]: Abstraction has 137 states and 187 transitions. [2020-07-01 11:45:46,701 INFO L591 BuchiCegarLoop]: Abstraction has 137 states and 187 transitions. [2020-07-01 11:45:46,701 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:45:46,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 187 transitions. [2020-07-01 11:45:46,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2020-07-01 11:45:46,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:45:46,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:45:46,704 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [7, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-07-01 11:45:46,704 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:45:46,705 INFO L794 eck$LassoCheckResult]: Stem: 23071#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L19: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet5_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet5_4|] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 23072#L19 [29] L19-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_4| v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_4|} AuxVars[] AssignedVars[rec1_#in~i]< 23086#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 23162#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 23143#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 23159#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 23165#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 23144#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 23145#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 23164#L6 [34] L6-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 23163#rec1FINAL [26] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 23160#rec1EXIT >[41] rec1EXIT-->L8-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 23155#L8-1 [32] L8-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i]< 23157#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 23161#L6 [34] L6-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 23158#rec1FINAL [26] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 23154#rec1EXIT >[40] rec1EXIT-->L8-2: AOR: Formula: (= |v_rec1_#t~ret1_4| |v_rec1_#resOutParam_2|) InVars {rec1_#res=|v_rec1_#resOutParam_2|} OutVars{rec1_#t~ret1=|v_rec1_#t~ret1_4|} AuxVars[] AssignedVars[rec1_#t~ret1] LVA: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i] 23149#L8-2 [36] L8-2-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_3| |v_rec1_#t~ret1_5|) InVars {rec1_#t~ret1=|v_rec1_#t~ret1_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_3|} AuxVars[] AssignedVars[rec1_#in~i]< 23151#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 23166#L6 [34] L6-->rec1FINAL: Formula: (and (<= v_rec1_~i_2 0) (= |v_rec1_#res_1| 0)) InVars {rec1_~i=v_rec1_~i_2} OutVars{rec1_#res=|v_rec1_#res_1|, rec1_~i=v_rec1_~i_2} AuxVars[] AssignedVars[rec1_#res] 23152#rec1FINAL [26] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 23148#rec1EXIT >[39] rec1EXIT-->L8-3: AOR: Formula: (= |v_rec1_#t~ret2_4| |v_rec1_#resOutParam_3|) InVars {rec1_#res=|v_rec1_#resOutParam_3|} OutVars{rec1_#t~ret2=|v_rec1_#t~ret2_4|} AuxVars[] AssignedVars[rec1_#t~ret2] LVA: Formula: (= |v_rec1_#in~iInParam_3| |v_rec1_#t~ret1_5|) InVars {rec1_#t~ret1=|v_rec1_#t~ret1_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_3|} AuxVars[] AssignedVars[rec1_#in~i] 23147#L8-3 [31] L8-3-->rec1FINAL: Formula: (= |v_rec1_#res_2| (+ |v_rec1_#t~ret2_3| 1)) InVars {rec1_#t~ret2=|v_rec1_#t~ret2_3|} OutVars{rec1_#t~ret1=|v_rec1_#t~ret1_3|, rec1_#t~ret2=|v_rec1_#t~ret2_2|, rec1_#res=|v_rec1_#res_2|, rec1_#t~ret0=|v_rec1_#t~ret0_3|} AuxVars[] AssignedVars[rec1_#t~ret1, rec1_#t~ret2, rec1_#res, rec1_#t~ret0] 23146#rec1FINAL [26] rec1FINAL-->rec1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 23142#rec1EXIT >[41] rec1EXIT-->L8-1: AOR: Formula: (= |v_rec1_#t~ret0_4| |v_rec1_#resOutParam_1|) InVars {rec1_#res=|v_rec1_#resOutParam_1|} OutVars{rec1_#t~ret0=|v_rec1_#t~ret0_4|} AuxVars[] AssignedVars[rec1_#t~ret0] LVA: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i] 23102#L8-1 [32] L8-1-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_2| (+ |v_rec1_#t~ret0_5| (- 1))) InVars {rec1_#t~ret0=|v_rec1_#t~ret0_5|} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_2|} AuxVars[] AssignedVars[rec1_#in~i]< 23132#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 23176#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 23136#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 23137#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 23140#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 23135#L8 [2020-07-01 11:45:46,705 INFO L796 eck$LassoCheckResult]: Loop: 23135#L8 [33] L8-->rec1ENTRY: Formula: (= |v_rec1_#in~iInParam_1| (+ v_rec1_~i_5 (- 2))) InVars {rec1_~i=v_rec1_~i_5} OutVars{rec1_#in~i=|v_rec1_#in~iInParam_1|} AuxVars[] AssignedVars[rec1_#in~i]< 23139#rec1ENTRY [25] rec1ENTRY-->L6: Formula: (= v_rec1_~i_1 |v_rec1_#in~i_1|) InVars {rec1_#in~i=|v_rec1_#in~i_1|} OutVars{rec1_#in~i=|v_rec1_#in~i_1|, rec1_~i=v_rec1_~i_1} AuxVars[] AssignedVars[rec1_~i] 23140#L6 [42] L6-->L8: Formula: (> v_rec1_~i_3 0) InVars {rec1_~i=v_rec1_~i_3} OutVars{rec1_~i=v_rec1_~i_3} AuxVars[] AssignedVars[] 23135#L8 [2020-07-01 11:45:46,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:46,705 INFO L82 PathProgramCache]: Analyzing trace with hash 37993876, now seen corresponding path program 1 times [2020-07-01 11:45:46,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:46,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653350311] [2020-07-01 11:45:46,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-07-01 11:45:46,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653350311] [2020-07-01 11:45:46,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574657432] [2020-07-01 11:45:46,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 11:45:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:46,858 INFO L264 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:45:46,860 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:46,868 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-07-01 11:45:46,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 11:45:46,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 10 [2020-07-01 11:45:46,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744690446] [2020-07-01 11:45:46,870 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:45:46,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:46,870 INFO L82 PathProgramCache]: Analyzing trace with hash 62321, now seen corresponding path program 3 times [2020-07-01 11:45:46,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:45:46,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928220666] [2020-07-01 11:45:46,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:45:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:45:46,875 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:45:46,917 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:45:46,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:45:46,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:45:46,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:45:46,918 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:45:46,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:46,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:45:46,918 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:45:46,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:45:46,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:45:46,919 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:45:46,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:46,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:46,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:46,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:46,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:46,975 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:45:46,976 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:46,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:46,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:46,989 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:46,989 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret1=0} Honda state: {rec1_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:47,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:47,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:47,029 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:47,030 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#res=0} Honda state: {rec1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:47,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:47,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:47,066 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:47,066 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret0=0} Honda state: {rec1_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:47,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:47,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:47,104 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:45:47,104 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec1_#t~ret2=0} Honda state: {rec1_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:47,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:45:47,138 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:45:47,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:45:47,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:45:59,224 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:45:59,228 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:45:59,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:45:59,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:45:59,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:45:59,229 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:45:59,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:59,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:45:59,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:45:59,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:45:59,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:45:59,229 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:45:59,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:59,233 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 11:45:59,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:59,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:59,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:45:59,287 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:45:59,287 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:59,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:59,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:59,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:59,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:59,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:59,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:59,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:59,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:59,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:59,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:59,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:59,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:59,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:59,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:59,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:59,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:59,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:59,335 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:59,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:59,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:59,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:59,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:59,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:59,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:59,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:59,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:59,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:59,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:59,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:59,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:59,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:59,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:59,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:59,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:59,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:59,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:59,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:45:59,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:45:59,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:45:59,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:45:59,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:45:59,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:45:59,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:45:59,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:45:59,445 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:45:59,448 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:45:59,448 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:45:59,451 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:45:59,451 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:45:59,451 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:45:59,452 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec1_~i) = 1*rec1_~i Supporting invariants [] [2020-07-01 11:45:59,481 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:45:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:45:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:59,540 INFO L264 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-01 11:45:59,543 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:59,572 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 11:45:59,578 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 11:45:59,582 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 11:45:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:59,596 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:45:59,597 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:45:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:45:59,657 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:45:59,658 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:45:59,716 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 11:45:59,716 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 5 loop predicates [2020-07-01 11:45:59,716 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 137 states and 187 transitions. cyclomatic complexity: 52 Second operand 5 states. [2020-07-01 11:45:59,847 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 137 states and 187 transitions. cyclomatic complexity: 52. Second operand 5 states. Result 352 states and 467 transitions. Complement of second has 76 states. [2020-07-01 11:45:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 4 non-accepting loop states 2 accepting loop states [2020-07-01 11:45:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:45:59,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 22 transitions. [2020-07-01 11:45:59,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 31 letters. Loop has 3 letters. [2020-07-01 11:45:59,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:59,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 34 letters. Loop has 3 letters. [2020-07-01 11:45:59,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:59,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 31 letters. Loop has 6 letters. [2020-07-01 11:45:59,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:45:59,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 352 states and 467 transitions. [2020-07-01 11:45:59,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2020-07-01 11:45:59,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 352 states to 167 states and 235 transitions. [2020-07-01 11:45:59,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 121 [2020-07-01 11:45:59,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 132 [2020-07-01 11:45:59,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167 states and 235 transitions. [2020-07-01 11:45:59,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:45:59,862 INFO L688 BuchiCegarLoop]: Abstraction has 167 states and 235 transitions. [2020-07-01 11:45:59,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states and 235 transitions. [2020-07-01 11:45:59,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 137. [2020-07-01 11:45:59,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-07-01 11:45:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 187 transitions. [2020-07-01 11:45:59,872 INFO L711 BuchiCegarLoop]: Abstraction has 137 states and 187 transitions. [2020-07-01 11:45:59,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:45:59,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-01 11:45:59,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-01 11:45:59,872 INFO L87 Difference]: Start difference. First operand 137 states and 187 transitions. Second operand 10 states. [2020-07-01 11:45:59,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:45:59,946 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2020-07-01 11:45:59,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-01 11:45:59,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 35 transitions. [2020-07-01 11:45:59,948 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:45:59,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2020-07-01 11:45:59,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:45:59,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:45:59,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:45:59,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:45:59,949 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:45:59,950 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:45:59,950 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:45:59,950 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:45:59,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:45:59,950 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:45:59,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:45:59,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:45:59 BasicIcfg [2020-07-01 11:45:59,957 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:45:59,960 INFO L168 Benchmark]: Toolchain (without parser) took 22048.53 ms. Allocated memory was 514.9 MB in the beginning and 889.7 MB in the end (delta: 374.9 MB). Free memory was 438.4 MB in the beginning and 357.6 MB in the end (delta: 80.8 MB). Peak memory consumption was 455.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:45:59,960 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:45:59,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.09 ms. Allocated memory was 514.9 MB in the beginning and 558.4 MB in the end (delta: 43.5 MB). Free memory was 438.4 MB in the beginning and 526.4 MB in the end (delta: -88.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:45:59,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.57 ms. Allocated memory is still 558.4 MB. Free memory was 526.4 MB in the beginning and 524.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:45:59,961 INFO L168 Benchmark]: Boogie Preprocessor took 16.95 ms. Allocated memory is still 558.4 MB. Free memory was 524.4 MB in the beginning and 523.7 MB in the end (delta: 673.8 kB). Peak memory consumption was 673.8 kB. Max. memory is 50.3 GB. [2020-07-01 11:45:59,962 INFO L168 Benchmark]: RCFGBuilder took 227.17 ms. Allocated memory is still 558.4 MB. Free memory was 523.0 MB in the beginning and 511.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:45:59,962 INFO L168 Benchmark]: BlockEncodingV2 took 65.06 ms. Allocated memory is still 558.4 MB. Free memory was 511.5 MB in the beginning and 506.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:45:59,963 INFO L168 Benchmark]: TraceAbstraction took 166.84 ms. Allocated memory is still 558.4 MB. Free memory was 506.1 MB in the beginning and 495.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:45:59,963 INFO L168 Benchmark]: BuchiAutomizer took 21237.13 ms. Allocated memory was 558.4 MB in the beginning and 889.7 MB in the end (delta: 331.4 MB). Free memory was 495.2 MB in the beginning and 357.6 MB in the end (delta: 137.6 MB). Peak memory consumption was 468.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:45:59,966 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 14 locations, 17 edges - StatisticsResult: Encoded RCFG 10 locations, 13 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.09 ms. Allocated memory was 514.9 MB in the beginning and 558.4 MB in the end (delta: 43.5 MB). Free memory was 438.4 MB in the beginning and 526.4 MB in the end (delta: -88.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.57 ms. Allocated memory is still 558.4 MB. Free memory was 526.4 MB in the beginning and 524.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.95 ms. Allocated memory is still 558.4 MB. Free memory was 524.4 MB in the beginning and 523.7 MB in the end (delta: 673.8 kB). Peak memory consumption was 673.8 kB. Max. memory is 50.3 GB. * RCFGBuilder took 227.17 ms. Allocated memory is still 558.4 MB. Free memory was 523.0 MB in the beginning and 511.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 65.06 ms. Allocated memory is still 558.4 MB. Free memory was 511.5 MB in the beginning and 506.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 166.84 ms. Allocated memory is still 558.4 MB. Free memory was 506.1 MB in the beginning and 495.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 21237.13 ms. Allocated memory was 558.4 MB in the beginning and 889.7 MB in the end (delta: 331.4 MB). Free memory was 495.2 MB in the beginning and 357.6 MB in the end (delta: 137.6 MB). Peak memory consumption was 468.9 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 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=10occurred 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, 5 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 5 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function \old(i) and consists of 5 locations. One nondeterministic module has affine ranking function org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@96ac1ab and consists of 23 locations. One nondeterministic module has affine ranking function \old(i) and consists of 6 locations. One nondeterministic module has affine ranking function i and consists of 8 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 21.2s and 5 iterations. TraceHistogramMax:7. Analysis of lassos took 16.4s. Construction of modules took 0.3s. Büchi inclusion checks took 3.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 217 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had 137 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 102 SDtfs, 130 SDslu, 257 SDs, 0 SdLazy, 376 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf92 smp100 dnf100 smp100 tf109 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 13.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:45:34.649 ----------------------------------------------- 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/sandbox/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/sandbox/tmp/BenchExec_run_9TGcMb/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:46:01.002 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check