/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:59:22,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:59:22,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:59:22,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:59:22,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:59:22,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:59:22,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:59:22,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:59:22,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:59:22,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:59:22,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:59:22,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:59:22,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:59:22,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:59:22,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:59:22,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:59:22,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:59:22,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:59:22,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:59:22,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:59:22,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:59:22,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:59:22,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:59:22,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:59:22,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:59:22,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:59:22,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:59:22,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:59:22,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:59:22,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:59:22,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:59:22,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:59:22,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:59:22,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:59:22,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:59:22,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:59:22,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:59:22,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:59:22,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:59:22,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:59:22,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:59:22,888 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:59:22,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:59:22,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:59:22,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:59:22,904 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:59:22,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:59:22,904 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:59:22,904 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:59:22,904 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:59:22,905 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:59:22,905 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:59:22,905 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:59:22,905 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:59:22,905 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:59:22,905 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:59:22,906 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:22,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:59:22,906 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:59:22,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:59:22,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:59:22,906 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:59:22,907 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:59:22,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:59:22,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:59:22,907 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:59:22,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:59:22,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:59:22,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:59:22,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:59:22,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:59:23,068 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:59:23,081 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:59:23,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:59:23,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:59:23,087 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:59:23,087 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:59:23,157 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_RXb1Ul/tmp/60957114a7194d9a980d2f65bf88463e/FLAGc83102119 [2020-07-01 12:59:23,494 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:59:23,495 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:59:23,502 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_RXb1Ul/tmp/60957114a7194d9a980d2f65bf88463e/FLAGc83102119 [2020-07-01 12:59:23,909 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_RXb1Ul/tmp/60957114a7194d9a980d2f65bf88463e [2020-07-01 12:59:23,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:59:23,921 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:59:23,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:59:23,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:59:23,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:59:23,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a0de7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:59:23,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:59:24,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:59:24,186 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:59:24,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:59:24,217 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:59:24,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24 WrapperNode [2020-07-01 12:59:24,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:59:24,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:59:24,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:59:24,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:59:24,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:59:24,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:59:24,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:59:24,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:59:24,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:59:24,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:59:24,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:59:24,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:59:24,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:59:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:59:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:59:24,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:59:24,511 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 12:59:24,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:59:24 BoogieIcfgContainer [2020-07-01 12:59:24,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:59:24,515 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:59:24,515 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:59:24,517 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:59:24,518 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:59:24" (1/1) ... [2020-07-01 12:59:24,531 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 13 edges [2020-07-01 12:59:24,532 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:59:24,533 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:59:24,533 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:59:24,534 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:59:24,535 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:59:24,536 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:59:24,536 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:59:24,550 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:59:24,564 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:59:24,568 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:59:24,570 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:59:24,584 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 12:59:24,586 INFO L70 RemoveSinkStates]: Removed 6 edges and 2 locations by removing sink states [2020-07-01 12:59:24,587 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:59:24,588 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:59:24,594 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:59:24,594 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:59:24,595 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:59:24,595 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:59:24,595 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:59:24,595 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:59:24,596 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 12:59:24,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:59:24 BasicIcfg [2020-07-01 12:59:24,597 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:59:24,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:59:24,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:59:24,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:59:24,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:59:23" (1/4) ... [2020-07-01 12:59:24,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36630557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:59:24, skipping insertion in model container [2020-07-01 12:59:24,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (2/4) ... [2020-07-01 12:59:24,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36630557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:59:24, skipping insertion in model container [2020-07-01 12:59:24,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:59:24" (3/4) ... [2020-07-01 12:59:24,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36630557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:59:24, skipping insertion in model container [2020-07-01 12:59:24,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:59:24" (4/4) ... [2020-07-01 12:59:24,606 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:59:24,617 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:59:24,625 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:59:24,638 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:59:24,662 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:59:24,662 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:59:24,662 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:59:24,662 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:59:24,662 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:59:24,662 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:59:24,663 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:59:24,663 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:59:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 12:59:24,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:59:24,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 12:59:24,743 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:59:24,743 INFO L271 CegarLoopResult]: At program point L24-2(lines 24 27) the Hoare annotation is: true [2020-07-01 12:59:24,743 INFO L271 CegarLoopResult]: At program point L22-2(lines 22 29) the Hoare annotation is: true [2020-07-01 12:59:24,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:59:24 BasicIcfg [2020-07-01 12:59:24,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:59:24,753 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:59:24,753 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:59:24,756 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:59:24,757 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:24,757 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:59:23" (1/5) ... [2020-07-01 12:59:24,758 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4209eb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:59:24, skipping insertion in model container [2020-07-01 12:59:24,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:24,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:24" (2/5) ... [2020-07-01 12:59:24,759 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4209eb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:59:24, skipping insertion in model container [2020-07-01 12:59:24,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:24,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:59:24" (3/5) ... [2020-07-01 12:59:24,759 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4209eb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:59:24, skipping insertion in model container [2020-07-01 12:59:24,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:24,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:59:24" (4/5) ... [2020-07-01 12:59:24,760 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4209eb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:59:24, skipping insertion in model container [2020-07-01 12:59:24,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:24,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:59:24" (5/5) ... [2020-07-01 12:59:24,762 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:59:24,789 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:59:24,789 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:59:24,789 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:59:24,790 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:59:24,790 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:59:24,790 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:59:24,790 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:59:24,790 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:59:24,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:59:24,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:59:24,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:59:24,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:59:24,816 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:59:24,816 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:59:24,816 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:59:24,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:59:24,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:59:24,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:59:24,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:59:24,817 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:59:24,817 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:59:24,822 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [60] ULTIMATE.startENTRY-->L22-2: Formula: (and (<= v_ULTIMATE.start_main_~z~0_12 10000) (<= v_ULTIMATE.start_main_~y~0_16 10000) (<= 0 (+ v_ULTIMATE.start_main_~x~0_14 10000)) (<= v_ULTIMATE.start_main_~x~0_14 10000)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 5#L22-2true [2020-07-01 12:59:24,823 INFO L796 eck$LassoCheckResult]: Loop: 5#L22-2true [48] L22-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (<= 1 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L24-2true [58] L24-2-->L22-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_15 v_ULTIMATE.start_main_~x~0_13) v_ULTIMATE.start_main_~y~0_14) (<= v_ULTIMATE.start_main_~z~0_11 v_ULTIMATE.start_main_~y~0_15)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 5#L22-2true [2020-07-01 12:59:24,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,829 INFO L82 PathProgramCache]: Analyzing trace with hash 91, now seen corresponding path program 1 times [2020-07-01 12:59:24,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586138286] [2020-07-01 12:59:24,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,910 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:24,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2507, now seen corresponding path program 1 times [2020-07-01 12:59:24,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525710990] [2020-07-01 12:59:24,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,943 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:24,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,945 INFO L82 PathProgramCache]: Analyzing trace with hash 88997, now seen corresponding path program 1 times [2020-07-01 12:59:24,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344877530] [2020-07-01 12:59:24,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,960 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:25,007 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:25,008 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:25,008 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:25,009 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:25,009 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:59:25,009 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:25,009 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:25,009 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:25,010 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:59:25,010 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:25,010 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:25,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:25,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:25,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:25,141 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:25,142 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:25,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:25,148 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:25,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:59:25,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:25,432 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:59:25,434 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:25,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:25,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:25,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:25,435 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:59:25,435 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:25,435 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:25,435 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:25,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:59:25,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:25,436 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:25,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:25,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:25,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:25,532 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:25,538 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:25,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:25,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:25,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:25,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:25,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:25,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:25,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:59:25,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:25,556 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:59:25,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:25,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:25,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:25,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:25,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:25,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:59:25,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:59:25,600 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:25,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:25,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:25,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:25,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:25,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:25,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:59:25,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:59:25,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 12:59:25,674 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:25,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:25,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:25,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:25,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:25,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:25,681 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:59:25,684 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:59:25,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:25,690 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:59:25,717 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 12:59:25,717 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:25,722 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:59:25,722 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:59:25,722 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:59:25,723 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 12:59:25,758 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:59:25,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:25,807 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:59:25,808 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:25,821 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:59:25,821 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:25,841 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:59:25,843 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:59:25,847 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:59:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:59:26,152 INFO L98 LoopCannibalizer]: 12 predicates before loop cannibalization 12 predicates after loop cannibalization [2020-07-01 12:59:26,158 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 12 loop predicates [2020-07-01 12:59:26,160 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 12:59:26,785 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 19 states and 30 transitions. Complement of second has 18 states. [2020-07-01 12:59:26,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 8 non-accepting loop states 1 accepting loop states [2020-07-01 12:59:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:59:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 19 transitions. [2020-07-01 12:59:26,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:59:26,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:26,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:59:26,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:26,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:59:26,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:26,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 30 transitions. [2020-07-01 12:59:26,801 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-07-01 12:59:26,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 12 states and 18 transitions. [2020-07-01 12:59:26,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 12:59:26,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-07-01 12:59:26,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 18 transitions. [2020-07-01 12:59:26,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:59:26,808 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2020-07-01 12:59:26,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 18 transitions. [2020-07-01 12:59:26,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2020-07-01 12:59:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 12:59:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 12:59:26,838 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 12:59:26,838 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 12:59:26,838 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:59:26,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 12:59:26,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:59:26,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:59:26,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:59:26,839 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:59:26,839 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:59:26,840 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY [60] ULTIMATE.startENTRY-->L22-2: Formula: (and (<= v_ULTIMATE.start_main_~z~0_12 10000) (<= v_ULTIMATE.start_main_~y~0_16 10000) (<= 0 (+ v_ULTIMATE.start_main_~x~0_14 10000)) (<= v_ULTIMATE.start_main_~x~0_14 10000)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 98#L22-2 [48] L22-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (<= 1 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 99#L24-2 [44] L24-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 (+ v_ULTIMATE.start_main_~z~0_9 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 1)) (< v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~z~0_9)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 100#L24-2 [2020-07-01 12:59:26,840 INFO L796 eck$LassoCheckResult]: Loop: 100#L24-2 [44] L24-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 (+ v_ULTIMATE.start_main_~z~0_9 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 1)) (< v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~z~0_9)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 100#L24-2 [2020-07-01 12:59:26,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:26,840 INFO L82 PathProgramCache]: Analyzing trace with hash 88983, now seen corresponding path program 1 times [2020-07-01 12:59:26,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:26,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26241704] [2020-07-01 12:59:26,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:26,855 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:26,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:26,855 INFO L82 PathProgramCache]: Analyzing trace with hash 75, now seen corresponding path program 1 times [2020-07-01 12:59:26,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:26,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874741753] [2020-07-01 12:59:26,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:26,863 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:26,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:26,863 INFO L82 PathProgramCache]: Analyzing trace with hash 2758517, now seen corresponding path program 2 times [2020-07-01 12:59:26,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:26,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138397998] [2020-07-01 12:59:26,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:26,880 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:26,899 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:26,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:26,900 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:26,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:26,900 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:59:26,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:26,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:26,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:26,900 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:59:26,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:26,901 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:26,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:26,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:26,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:26,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:26,987 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:26,988 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:26,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:26,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:26,996 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:59:26,996 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:27,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:27,029 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:27,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:59:27,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:27,286 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:59:27,289 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:27,289 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:27,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:27,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:27,289 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:59:27,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:27,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:27,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:27,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:59:27,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:27,290 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:27,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,361 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:27,362 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:27,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:27,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:27,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:27,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:27,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:27,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:59:27,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:59:27,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:27,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:27,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:27,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:27,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:27,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:27,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:27,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:59:27,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:27,418 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:59:27,423 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 12:59:27,423 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:27,426 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:59:27,427 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:59:27,427 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:59:27,427 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~z~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 12:59:27,460 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:59:27,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:27,479 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:59:27,480 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:27,488 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:59:27,488 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:59:27,489 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:59:27,489 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:59:27,489 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 12:59:27,503 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 10 states and 15 transitions. Complement of second has 2 states. [2020-07-01 12:59:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:59:27,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:59:27,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 12:59:27,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:59:27,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:27,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-01 12:59:27,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:27,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:59:27,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:27,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 15 transitions. [2020-07-01 12:59:27,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 12:59:27,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 15 transitions. [2020-07-01 12:59:27,508 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:59:27,509 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 12:59:27,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2020-07-01 12:59:27,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:59:27,509 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-07-01 12:59:27,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2020-07-01 12:59:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-07-01 12:59:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-01 12:59:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2020-07-01 12:59:27,511 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-07-01 12:59:27,511 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-07-01 12:59:27,511 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:59:27,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2020-07-01 12:59:27,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:59:27,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:59:27,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:59:27,512 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:59:27,512 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:59:27,513 INFO L794 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY [60] ULTIMATE.startENTRY-->L22-2: Formula: (and (<= v_ULTIMATE.start_main_~z~0_12 10000) (<= v_ULTIMATE.start_main_~y~0_16 10000) (<= 0 (+ v_ULTIMATE.start_main_~x~0_14 10000)) (<= v_ULTIMATE.start_main_~x~0_14 10000)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 143#L22-2 [48] L22-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (<= 1 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 144#L24-2 [44] L24-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 (+ v_ULTIMATE.start_main_~z~0_9 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 1)) (< v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~z~0_9)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 145#L24-2 [2020-07-01 12:59:27,513 INFO L796 eck$LassoCheckResult]: Loop: 145#L24-2 [58] L24-2-->L22-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_15 v_ULTIMATE.start_main_~x~0_13) v_ULTIMATE.start_main_~y~0_14) (<= v_ULTIMATE.start_main_~z~0_11 v_ULTIMATE.start_main_~y~0_15)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 147#L22-2 [48] L22-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (<= 1 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 148#L24-2 [44] L24-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 (+ v_ULTIMATE.start_main_~z~0_9 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 1)) (< v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~z~0_9)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 145#L24-2 [2020-07-01 12:59:27,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:27,513 INFO L82 PathProgramCache]: Analyzing trace with hash 88983, now seen corresponding path program 3 times [2020-07-01 12:59:27,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:27,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553854778] [2020-07-01 12:59:27,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:27,526 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:27,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:27,527 INFO L82 PathProgramCache]: Analyzing trace with hash 87061, now seen corresponding path program 1 times [2020-07-01 12:59:27,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:27,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382883597] [2020-07-01 12:59:27,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:27,539 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:27,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:27,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1644017473, now seen corresponding path program 1 times [2020-07-01 12:59:27,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:27,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18979575] [2020-07-01 12:59:27,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:27,561 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:27,602 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:27,602 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:27,603 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:27,603 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:27,603 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:59:27,603 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:27,603 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:27,603 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:27,603 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:59:27,603 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:27,604 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:27,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,678 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:27,679 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:27,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:27,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:27,687 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:59:27,687 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:27,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:27,720 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:27,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:59:27,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:27,967 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:59:27,969 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:27,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:27,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:27,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:27,970 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:59:27,970 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:27,970 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:27,970 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:27,970 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:59:27,970 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:27,971 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:27,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:27,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:28,036 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:28,036 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:28,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:28,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:28,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:28,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:28,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:59:28,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:59:28,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:28,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:28,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:28,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:28,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:28,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:28,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:59:28,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:28,091 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:59:28,096 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:59:28,096 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,099 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:59:28,099 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:59:28,099 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:59:28,099 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-07-01 12:59:28,129 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:59:28,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:28,145 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:59:28,146 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:28,150 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:59:28,151 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:59:28,168 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:59:28,169 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:59:28,169 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-07-01 12:59:28,197 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 18 states and 33 transitions. Complement of second has 12 states. [2020-07-01 12:59:28,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 12:59:28,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:59:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2020-07-01 12:59:28,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 12:59:28,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:28,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 12:59:28,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:28,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 12:59:28,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:28,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 33 transitions. [2020-07-01 12:59:28,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:59:28,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 33 transitions. [2020-07-01 12:59:28,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:59:28,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 12:59:28,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 33 transitions. [2020-07-01 12:59:28,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:59:28,205 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 33 transitions. [2020-07-01 12:59:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 33 transitions. [2020-07-01 12:59:28,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2020-07-01 12:59:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-01 12:59:28,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2020-07-01 12:59:28,208 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 12:59:28,208 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 12:59:28,208 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:59:28,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 24 transitions. [2020-07-01 12:59:28,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:59:28,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:59:28,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:59:28,210 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 12:59:28,210 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:59:28,210 INFO L794 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY [60] ULTIMATE.startENTRY-->L22-2: Formula: (and (<= v_ULTIMATE.start_main_~z~0_12 10000) (<= v_ULTIMATE.start_main_~y~0_16 10000) (<= 0 (+ v_ULTIMATE.start_main_~x~0_14 10000)) (<= v_ULTIMATE.start_main_~x~0_14 10000)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_16, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 222#L22-2 [48] L22-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (<= 1 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 226#L24-2 [44] L24-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 (+ v_ULTIMATE.start_main_~z~0_9 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 1)) (< v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~z~0_9)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 231#L24-2 [58] L24-2-->L22-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_15 v_ULTIMATE.start_main_~x~0_13) v_ULTIMATE.start_main_~y~0_14) (<= v_ULTIMATE.start_main_~z~0_11 v_ULTIMATE.start_main_~y~0_15)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 224#L22-2 [2020-07-01 12:59:28,210 INFO L796 eck$LassoCheckResult]: Loop: 224#L22-2 [48] L22-2-->L24-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (<= 1 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 223#L24-2 [58] L24-2-->L22-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_15 v_ULTIMATE.start_main_~x~0_13) v_ULTIMATE.start_main_~y~0_14) (<= v_ULTIMATE.start_main_~z~0_11 v_ULTIMATE.start_main_~y~0_15)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 224#L22-2 [2020-07-01 12:59:28,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:28,211 INFO L82 PathProgramCache]: Analyzing trace with hash 2758531, now seen corresponding path program 2 times [2020-07-01 12:59:28,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:28,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139169426] [2020-07-01 12:59:28,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:28,223 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:28,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:28,223 INFO L82 PathProgramCache]: Analyzing trace with hash 2507, now seen corresponding path program 2 times [2020-07-01 12:59:28,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:28,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545283022] [2020-07-01 12:59:28,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:28,230 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1644017459, now seen corresponding path program 3 times [2020-07-01 12:59:28,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:28,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395815498] [2020-07-01 12:59:28,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:28,245 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:28,261 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:28,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:28,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:28,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:28,262 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:59:28,262 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:28,262 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:28,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:28,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:59:28,263 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:28,263 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:28,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:28,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:28,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:28,314 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:28,314 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:28,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:28,317 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:28,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:59:28,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:28,618 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:59:28,621 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:28,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:28,621 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:28,621 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:28,621 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:59:28,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:28,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:28,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:59:28,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:28,622 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:28,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:28,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:28,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:59:28,674 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:28,674 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:28,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:28,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:28,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:28,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:28,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:28,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:59:28,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:28,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:28,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:28,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:28,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:28,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:28,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:59:28,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:59:28,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:28,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:28,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:28,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:28,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:28,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:59:28,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:59:28,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 12:59:28,793 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:59:28,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:28,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:28,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:28,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:28,799 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:59:28,800 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:59:28,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:28,804 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:59:28,812 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 12:59:28,812 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:28,815 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:59:28,816 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:59:28,816 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:59:28,816 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 12:59:28,846 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:59:28,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:28,868 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:59:28,868 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:28,875 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:59:28,876 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:28,878 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:59:28,879 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-01 12:59:28,881 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:59:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:59:29,065 INFO L98 LoopCannibalizer]: 12 predicates before loop cannibalization 12 predicates after loop cannibalization [2020-07-01 12:59:29,065 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 12 loop predicates [2020-07-01 12:59:29,066 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 15 Second operand 3 states. [2020-07-01 12:59:29,528 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 128 states and 219 transitions. Complement of second has 46 states. [2020-07-01 12:59:29,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 8 non-accepting loop states 1 accepting loop states [2020-07-01 12:59:29,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:59:29,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 19 transitions. [2020-07-01 12:59:29,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 12:59:29,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:29,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 19 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 12:59:29,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:29,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 19 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 12:59:29,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:29,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 219 transitions. [2020-07-01 12:59:29,538 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:59:29,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 0 states and 0 transitions. [2020-07-01 12:59:29,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:59:29,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:59:29,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:59:29,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:59:29,539 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:59:29,539 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:59:29,539 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:59:29,539 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 12:59:29,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:59:29,539 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:59:29,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:59:29,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:59:29 BasicIcfg [2020-07-01 12:59:29,545 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:59:29,547 INFO L168 Benchmark]: Toolchain (without parser) took 5625.67 ms. Allocated memory was 649.6 MB in the beginning and 746.1 MB in the end (delta: 96.5 MB). Free memory was 562.7 MB in the beginning and 356.6 MB in the end (delta: 206.1 MB). Peak memory consumption was 302.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:29,548 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 584.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:59:29,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.60 ms. Allocated memory was 649.6 MB in the beginning and 672.1 MB in the end (delta: 22.5 MB). Free memory was 562.7 MB in the beginning and 635.4 MB in the end (delta: -72.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:29,549 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.13 ms. Allocated memory is still 672.1 MB. Free memory was 635.4 MB in the beginning and 634.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:29,550 INFO L168 Benchmark]: Boogie Preprocessor took 20.42 ms. Allocated memory is still 672.1 MB. Free memory was 634.1 MB in the beginning and 632.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:29,550 INFO L168 Benchmark]: RCFGBuilder took 240.03 ms. Allocated memory is still 672.1 MB. Free memory was 632.7 MB in the beginning and 617.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:29,551 INFO L168 Benchmark]: BlockEncodingV2 took 81.82 ms. Allocated memory is still 672.1 MB. Free memory was 617.0 MB in the beginning and 611.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:29,551 INFO L168 Benchmark]: TraceAbstraction took 154.34 ms. Allocated memory is still 672.1 MB. Free memory was 610.3 MB in the beginning and 602.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:29,552 INFO L168 Benchmark]: BuchiAutomizer took 4792.37 ms. Allocated memory was 672.1 MB in the beginning and 746.1 MB in the end (delta: 73.9 MB). Free memory was 602.1 MB in the beginning and 356.6 MB in the end (delta: 245.5 MB). Peak memory consumption was 319.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:29,555 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 13 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 584.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.60 ms. Allocated memory was 649.6 MB in the beginning and 672.1 MB in the end (delta: 22.5 MB). Free memory was 562.7 MB in the beginning and 635.4 MB in the end (delta: -72.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.13 ms. Allocated memory is still 672.1 MB. Free memory was 635.4 MB in the beginning and 634.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.42 ms. Allocated memory is still 672.1 MB. Free memory was 634.1 MB in the beginning and 632.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 240.03 ms. Allocated memory is still 672.1 MB. Free memory was 632.7 MB in the beginning and 617.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 81.82 ms. Allocated memory is still 672.1 MB. Free memory was 617.0 MB in the beginning and 611.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.34 ms. Allocated memory is still 672.1 MB. Free memory was 610.3 MB in the beginning and 602.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4792.37 ms. Allocated memory was 672.1 MB in the beginning and 746.1 MB in the end (delta: 73.9 MB). Free memory was 602.1 MB in the beginning and 356.6 MB in the end (delta: 245.5 MB). Peak memory consumption was 319.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has 2-nested ranking function (if x > 0 then 1 else 0), (if x > 0 then x else y) and consists of 10 locations. One nondeterministic module has affine ranking function z + -1 * y and consists of 2 locations. One nondeterministic module has affine ranking function z and consists of 5 locations. One nondeterministic module has 2-nested ranking function (if x > 0 then 1 else 0), (if x > 0 then x else y) and consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 17 SDtfs, 38 SDslu, 1 SDs, 0 SdLazy, 91 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf93 smp100 dnf100 smp100 tf108 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:59:20.576 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_RXb1Ul/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:59:30.244 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check