/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 13:09:09,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:09:09,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:09:09,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:09:09,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:09:09,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:09:09,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:09:09,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:09:09,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:09:09,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:09:09,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:09:09,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:09:09,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:09:09,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:09:09,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:09:09,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:09:09,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:09:09,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:09:09,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:09:09,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:09:09,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:09:09,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:09:09,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:09:09,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:09:09,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:09:09,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:09:09,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:09:09,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:09:09,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:09:09,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:09:09,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:09:09,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:09:09,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:09:09,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:09:09,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:09:09,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:09:09,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:09:09,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:09:09,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:09:09,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:09:09,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:09:09,140 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 13:09:09,154 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:09:09,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:09:09,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:09:09,156 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:09:09,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:09:09,156 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:09:09,156 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:09:09,156 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:09:09,157 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:09:09,157 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:09:09,157 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:09:09,157 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:09:09,157 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:09:09,157 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:09:09,158 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:09,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:09:09,158 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:09:09,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:09:09,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:09:09,158 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:09:09,159 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:09:09,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:09:09,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:09:09,159 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:09:09,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:09:09,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:09:09,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:09:09,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:09:09,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:09:09,328 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:09:09,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:09:09,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:09:09,346 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:09:09,346 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:09:09,347 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:09:09,450 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_SH5H0w/tmp/9e4f7e9c1fea4b4a8fcf668e6b2724fb/FLAGa8d313bbc [2020-07-01 13:09:09,805 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:09:09,806 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:09:09,813 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_SH5H0w/tmp/9e4f7e9c1fea4b4a8fcf668e6b2724fb/FLAGa8d313bbc [2020-07-01 13:09:10,202 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_SH5H0w/tmp/9e4f7e9c1fea4b4a8fcf668e6b2724fb [2020-07-01 13:09:10,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:09:10,215 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:09:10,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:09:10,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:09:10,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:09:10,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73facf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10, skipping insertion in model container [2020-07-01 13:09:10,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:09:10,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:09:10,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:09:10,468 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:09:10,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:09:10,499 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:09:10,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10 WrapperNode [2020-07-01 13:09:10,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:09:10,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:09:10,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:09:10,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:09:10,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:09:10,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:09:10,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:09:10,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:09:10,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:09:10,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:09:10,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:09:10,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:09:10,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:09:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:09:10,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:09:10,776 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:09:10,777 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 13:09:10,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:10 BoogieIcfgContainer [2020-07-01 13:09:10,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:09:10,781 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:09:10,781 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:09:10,783 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:09:10,784 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:10" (1/1) ... [2020-07-01 13:09:10,795 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 13:09:10,797 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:09:10,798 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:09:10,798 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:09:10,798 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:09:10,800 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:09:10,801 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:09:10,801 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:09:10,816 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:09:10,830 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 13:09:10,834 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 13:09:10,835 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:09:10,844 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 13:09:10,846 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 13:09:10,848 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:09:10,848 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:09:10,848 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:09:10,848 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:09:10,849 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-07-01 13:09:10,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:10 BasicIcfg [2020-07-01 13:09:10,849 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:09:10,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:09:10,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:09:10,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:09:10,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:09:10" (1/4) ... [2020-07-01 13:09:10,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57066bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:09:10, skipping insertion in model container [2020-07-01 13:09:10,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (2/4) ... [2020-07-01 13:09:10,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57066bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:09:10, skipping insertion in model container [2020-07-01 13:09:10,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:10" (3/4) ... [2020-07-01 13:09:10,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57066bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:10, skipping insertion in model container [2020-07-01 13:09:10,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:10" (4/4) ... [2020-07-01 13:09:10,858 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:09:10,868 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:09:10,874 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:09:10,888 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:09:10,910 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:09:10,911 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:09:10,911 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:09:10,911 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:09:10,911 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:09:10,911 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:09:10,911 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:09:10,912 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:09:10,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 13:09:10,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:09:10,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 13:09:10,985 INFO L271 CegarLoopResult]: At program point L19-2(lines 13 25) the Hoare annotation is: true [2020-07-01 13:09:10,985 INFO L268 CegarLoopResult]: For program point L14(lines 14 24) no Hoare annotation was computed. [2020-07-01 13:09:10,985 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:09:10,986 INFO L268 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-07-01 13:09:10,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:10 BasicIcfg [2020-07-01 13:09:10,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:09:10,995 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:09:10,995 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:09:10,998 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:09:10,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:10,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:09:10" (1/5) ... [2020-07-01 13:09:11,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4224540a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:09:11, skipping insertion in model container [2020-07-01 13:09:11,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:11,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:10" (2/5) ... [2020-07-01 13:09:11,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4224540a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:09:11, skipping insertion in model container [2020-07-01 13:09:11,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:11,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:10" (3/5) ... [2020-07-01 13:09:11,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4224540a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:11, skipping insertion in model container [2020-07-01 13:09:11,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:11,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:10" (4/5) ... [2020-07-01 13:09:11,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4224540a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:11, skipping insertion in model container [2020-07-01 13:09:11,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:11,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:10" (5/5) ... [2020-07-01 13:09:11,004 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:09:11,032 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:09:11,032 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:09:11,032 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:09:11,033 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:09:11,033 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:09:11,033 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:09:11,033 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:09:11,033 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:09:11,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 13:09:11,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:09:11,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:11,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:11,060 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:09:11,060 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:09:11,060 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:09:11,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 13:09:11,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:09:11,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:11,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:11,061 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:09:11,061 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:09:11,066 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 4#L19-2true [2020-07-01 13:09:11,067 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 6#L14true [38] L14-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_12 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~t~0_6) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~j~0_12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 4#L19-2true [2020-07-01 13:09:11,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:11,073 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2020-07-01 13:09:11,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:11,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064737724] [2020-07-01 13:09:11,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:11,156 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:11,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:11,157 INFO L82 PathProgramCache]: Analyzing trace with hash 2053, now seen corresponding path program 1 times [2020-07-01 13:09:11,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:11,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819669024] [2020-07-01 13:09:11,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:11,177 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:11,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:11,179 INFO L82 PathProgramCache]: Analyzing trace with hash 58752, now seen corresponding path program 1 times [2020-07-01 13:09:11,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:11,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187172189] [2020-07-01 13:09:11,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:11,194 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:11,271 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:11,272 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:11,272 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:11,272 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:11,272 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:11,272 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:11,273 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:11,273 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:11,273 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:09:11,273 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:11,273 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:11,293 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 13:09:11,303 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 13:09:11,307 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 13:09:11,410 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:11,411 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:11,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:11,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:11,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:11,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:11,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:11,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:11,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:11,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:11,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:11,499 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:11,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:11,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:11,933 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:09:11,936 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:11,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:11,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:11,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:11,956 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:09:11,956 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:11,956 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:11,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:11,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:09:11,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:11,956 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:11,958 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 13:09:11,963 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 13:09:11,967 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 13:09:12,052 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:12,058 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 13:09:12,063 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 13:09:12,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:12,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:12,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:12,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:12,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:09:12,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:09:12,087 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 13:09:12,123 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 13:09:12,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:12,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:12,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:12,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:12,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:09:12,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:09:12,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 13:09:12,170 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 13:09:12,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:12,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:09:12,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:12,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:12,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:12,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:09:12,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:09:12,182 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:09:12,187 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 13:09:12,187 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:12,192 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:09:12,192 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:09:12,192 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:09:12,193 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-07-01 13:09:12,227 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:09:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:12,263 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:09:12,264 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:12,277 WARN L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 13:09:12,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:12,292 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 13:09:12,317 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 13:09:12,323 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 13:09:12,324 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-07-01 13:09:12,391 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 19 states and 29 transitions. Complement of second has 9 states. [2020-07-01 13:09:12,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-07-01 13:09:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:09:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2020-07-01 13:09:12,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:09:12,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:12,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:09:12,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:12,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 13:09:12,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:12,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 29 transitions. [2020-07-01 13:09:12,406 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-07-01 13:09:12,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 24 transitions. [2020-07-01 13:09:12,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-07-01 13:09:12,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-07-01 13:09:12,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2020-07-01 13:09:12,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:09:12,413 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2020-07-01 13:09:12,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2020-07-01 13:09:12,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2020-07-01 13:09:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 13:09:12,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2020-07-01 13:09:12,443 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2020-07-01 13:09:12,443 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2020-07-01 13:09:12,443 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 13:09:12,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2020-07-01 13:09:12,444 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 13:09:12,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:12,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:12,444 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:09:12,444 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:09:12,445 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 68#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 70#L14 [2020-07-01 13:09:12,445 INFO L796 eck$LassoCheckResult]: Loop: 70#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 76#L19 [42] L19-->L19-2: Formula: (and (>= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 (- 1)))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 69#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 70#L14 [2020-07-01 13:09:12,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:12,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 1 times [2020-07-01 13:09:12,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:12,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083908740] [2020-07-01 13:09:12,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:12,455 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:12,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:12,455 INFO L82 PathProgramCache]: Analyzing trace with hash 70528, now seen corresponding path program 1 times [2020-07-01 13:09:12,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:12,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762547471] [2020-07-01 13:09:12,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:12,464 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:12,465 INFO L82 PathProgramCache]: Analyzing trace with hash 56464891, now seen corresponding path program 1 times [2020-07-01 13:09:12,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:12,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305837152] [2020-07-01 13:09:12,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:12,477 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:12,521 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:12,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:12,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:12,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:12,522 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:12,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:12,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:12,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:12,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:09:12,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:12,522 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:12,524 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 13:09:12,528 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 13:09:12,533 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 13:09:12,611 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:12,612 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:12,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:12,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:12,621 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:12,621 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/sandbox/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 13:09:12,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:12,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:12,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:12,663 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:12,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:12,700 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:12,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:12,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:12,885 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:09:12,888 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:12,888 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:12,888 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:12,888 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:12,888 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:09:12,888 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:12,888 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:12,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:12,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:09:12,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:12,889 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:12,891 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 13:09:12,895 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 13:09:12,900 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 13:09:12,958 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:12,958 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:12,964 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 13:09:12,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:12,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:12,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:12,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:12,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:09:12,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:09:12,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:13,014 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 13:09:13,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:13,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:13,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:13,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:13,020 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:09:13,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:09:13,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:13,065 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 13:09:13,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:13,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:09:13,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:13,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:13,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:13,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:09:13,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:09:13,074 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:09:13,081 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 13:09:13,081 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:13,089 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:09:13,089 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:09:13,089 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:09:13,089 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 13:09:13,120 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:09:13,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:13,139 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:09:13,139 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:13,144 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:09:13,144 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:13,167 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 13:09:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:13,172 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:09:13,173 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:13,199 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:09:13,200 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 13:09:13,200 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-07-01 13:09:13,263 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 55 states and 82 transitions. Complement of second has 20 states. [2020-07-01 13:09:13,263 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 13:09:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:09:13,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-07-01 13:09:13,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 13:09:13,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:13,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 13:09:13,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:13,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 13:09:13,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:13,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 82 transitions. [2020-07-01 13:09:13,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2020-07-01 13:09:13,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 38 states and 56 transitions. [2020-07-01 13:09:13,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-07-01 13:09:13,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-07-01 13:09:13,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 56 transitions. [2020-07-01 13:09:13,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:09:13,274 INFO L688 BuchiCegarLoop]: Abstraction has 38 states and 56 transitions. [2020-07-01 13:09:13,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 56 transitions. [2020-07-01 13:09:13,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 22. [2020-07-01 13:09:13,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-01 13:09:13,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 34 transitions. [2020-07-01 13:09:13,277 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 34 transitions. [2020-07-01 13:09:13,277 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 34 transitions. [2020-07-01 13:09:13,277 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 13:09:13,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 34 transitions. [2020-07-01 13:09:13,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 13:09:13,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:13,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:13,279 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 13:09:13,279 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:09:13,279 INFO L794 eck$LassoCheckResult]: Stem: 198#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 199#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 200#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 205#L19 [2020-07-01 13:09:13,279 INFO L796 eck$LassoCheckResult]: Loop: 205#L19 [35] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~i~0_6) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 206#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 210#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 205#L19 [2020-07-01 13:09:13,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:13,280 INFO L82 PathProgramCache]: Analyzing trace with hash 58755, now seen corresponding path program 1 times [2020-07-01 13:09:13,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:13,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666936243] [2020-07-01 13:09:13,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:13,289 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:13,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:13,289 INFO L82 PathProgramCache]: Analyzing trace with hash 64521, now seen corresponding path program 1 times [2020-07-01 13:09:13,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:13,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590625727] [2020-07-01 13:09:13,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:13,299 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:13,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:13,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1750404935, now seen corresponding path program 1 times [2020-07-01 13:09:13,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:13,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514597081] [2020-07-01 13:09:13,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:13,312 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:13,334 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:13,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:13,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:13,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:13,335 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:13,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:13,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:13,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:13,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:09:13,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:13,336 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:13,337 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 13:09:13,341 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 13:09:13,345 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 13:09:13,394 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:13,394 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:13,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:13,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:13,402 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:13,402 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/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:13,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:13,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:13,439 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:13,439 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:13,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:13,472 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:13,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:13,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:13,718 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:09:13,721 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:13,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:13,734 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:13,734 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:13,735 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:09:13,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:13,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:13,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:13,735 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:09:13,735 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:13,735 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:13,738 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 13:09:13,746 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 13:09:13,765 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 13:09:13,834 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:13,834 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:13,837 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 13:09:13,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:13,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:13,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:13,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:13,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:09:13,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:09:13,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:13,879 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 13:09:13,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:13,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:09:13,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:13,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:13,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:13,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:09:13,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:09:13,886 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:09:13,889 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:09:13,889 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:13,895 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:09:13,896 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:09:13,896 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:09:13,896 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-07-01 13:09:13,926 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:09:13,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:13,947 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:09:13,947 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:13,951 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:09:13,951 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:13,962 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 13:09:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:13,982 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:09:13,983 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:13,985 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:09:13,985 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 13:09:13,985 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 22 states and 34 transitions. cyclomatic complexity: 15 Second operand 3 states. [2020-07-01 13:09:14,060 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 22 states and 34 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 66 states and 101 transitions. Complement of second has 14 states. [2020-07-01 13:09:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 13:09:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:09:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-07-01 13:09:14,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 13:09:14,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:14,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 13:09:14,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:14,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 13:09:14,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:14,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 101 transitions. [2020-07-01 13:09:14,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-07-01 13:09:14,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 22 states and 31 transitions. [2020-07-01 13:09:14,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-01 13:09:14,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 13:09:14,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2020-07-01 13:09:14,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:09:14,068 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2020-07-01 13:09:14,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2020-07-01 13:09:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-07-01 13:09:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 13:09:14,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2020-07-01 13:09:14,071 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-07-01 13:09:14,071 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-07-01 13:09:14,071 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 13:09:14,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2020-07-01 13:09:14,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-01 13:09:14,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:14,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:14,073 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 13:09:14,073 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1] [2020-07-01 13:09:14,073 INFO L794 eck$LassoCheckResult]: Stem: 347#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 348#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 357#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 354#L19 [2020-07-01 13:09:14,073 INFO L796 eck$LassoCheckResult]: Loop: 354#L19 [35] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~i~0_6) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 349#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 350#L14 [38] L14-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_12 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~t~0_6) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~j~0_12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 356#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 359#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 354#L19 [2020-07-01 13:09:14,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:14,074 INFO L82 PathProgramCache]: Analyzing trace with hash 58755, now seen corresponding path program 2 times [2020-07-01 13:09:14,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:14,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964444466] [2020-07-01 13:09:14,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,082 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:14,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:14,083 INFO L82 PathProgramCache]: Analyzing trace with hash 62002893, now seen corresponding path program 1 times [2020-07-01 13:09:14,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:14,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873910656] [2020-07-01 13:09:14,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:14,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:09:14,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873910656] [2020-07-01 13:09:14,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:09:14,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:09:14,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762433706] [2020-07-01 13:09:14,127 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 13:09:14,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:09:14,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:09:14,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:09:14,131 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand 3 states. [2020-07-01 13:09:14,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:09:14,147 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2020-07-01 13:09:14,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:09:14,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 32 transitions. [2020-07-01 13:09:14,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 13:09:14,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 27 transitions. [2020-07-01 13:09:14,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-01 13:09:14,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 13:09:14,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2020-07-01 13:09:14,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:09:14,151 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2020-07-01 13:09:14,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2020-07-01 13:09:14,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2020-07-01 13:09:14,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-01 13:09:14,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-07-01 13:09:14,154 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-07-01 13:09:14,154 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-07-01 13:09:14,154 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 13:09:14,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-07-01 13:09:14,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 13:09:14,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:14,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:14,155 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2020-07-01 13:09:14,155 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1] [2020-07-01 13:09:14,156 INFO L794 eck$LassoCheckResult]: Stem: 397#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 398#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 409#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 403#L19 [35] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~i~0_6) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 401#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 402#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 405#L19 [42] L19-->L19-2: Formula: (and (>= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 (- 1)))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 407#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 406#L14 [2020-07-01 13:09:14,156 INFO L796 eck$LassoCheckResult]: Loop: 406#L14 [38] L14-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_12 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~t~0_6) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~j~0_12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 399#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 400#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 404#L19 [42] L19-->L19-2: Formula: (and (>= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 (- 1)))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 407#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 406#L14 [2020-07-01 13:09:14,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:14,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1488036161, now seen corresponding path program 1 times [2020-07-01 13:09:14,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:14,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101521075] [2020-07-01 13:09:14,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,169 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:14,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:14,170 INFO L82 PathProgramCache]: Analyzing trace with hash 64776580, now seen corresponding path program 1 times [2020-07-01 13:09:14,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:14,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553774426] [2020-07-01 13:09:14,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:09:14,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553774426] [2020-07-01 13:09:14,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:09:14,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:09:14,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604063981] [2020-07-01 13:09:14,199 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 13:09:14,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:09:14,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:09:14,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:09:14,200 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-07-01 13:09:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:09:14,213 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2020-07-01 13:09:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:09:14,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2020-07-01 13:09:14,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 13:09:14,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 24 transitions. [2020-07-01 13:09:14,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-01 13:09:14,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 13:09:14,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2020-07-01 13:09:14,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:09:14,216 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-07-01 13:09:14,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2020-07-01 13:09:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 11. [2020-07-01 13:09:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 13:09:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-07-01 13:09:14,218 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 13:09:14,218 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 13:09:14,218 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 13:09:14,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-07-01 13:09:14,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 13:09:14,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:14,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:14,219 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:09:14,220 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1, 1, 1] [2020-07-01 13:09:14,220 INFO L794 eck$LassoCheckResult]: Stem: 443#ULTIMATE.startENTRY [29] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 444#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 446#L14 [2020-07-01 13:09:14,220 INFO L796 eck$LassoCheckResult]: Loop: 446#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 449#L19 [35] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~i~0_6) (< v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 447#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 448#L14 [41] L14-->L19: Formula: (>= v_ULTIMATE.start_main_~i~0_13 v_ULTIMATE.start_main_~j~0_13) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_13, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 450#L19 [42] L19-->L19-2: Formula: (and (>= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 (- 1)))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 453#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 452#L14 [38] L14-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_12 v_ULTIMATE.start_main_~j~0_12) (= v_ULTIMATE.start_main_~j~0_11 v_ULTIMATE.start_main_~t~0_6) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 v_ULTIMATE.start_main_~j~0_12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_12, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 445#L19-2 [34] L19-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_10) (< 0 v_ULTIMATE.start_main_~i~0_10)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 446#L14 [2020-07-01 13:09:14,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:14,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 2 times [2020-07-01 13:09:14,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:14,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327431374] [2020-07-01 13:09:14,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,227 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:14,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:14,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1356276394, now seen corresponding path program 1 times [2020-07-01 13:09:14,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:14,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142674844] [2020-07-01 13:09:14,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:14,241 INFO L82 PathProgramCache]: Analyzing trace with hash 221360059, now seen corresponding path program 1 times [2020-07-01 13:09:14,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:14,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529914019] [2020-07-01 13:09:14,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:14,256 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:14,329 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:14,329 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:14,329 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:14,329 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:14,329 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:14,329 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:14,330 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:14,330 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:14,330 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Lasso [2020-07-01 13:09:14,330 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:14,330 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:14,332 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 13:09:14,335 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 13:09:14,336 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 13:09:14,339 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 13:09:14,341 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 13:09:14,355 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 13:09:14,417 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:14,418 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:14,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:14,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:14,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:14,424 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:14,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:14,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:14,459 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:14,459 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:14,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:14,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:14,494 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:14,494 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:14,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:14,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:14,529 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:14,529 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:14,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:14,561 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:14,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:14,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:15,077 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:15,078 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~j~0=0} Honda state: {ULTIMATE.start_main_~i~0=10, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~j~0=9} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=7, ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=2, ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~j~0=0}] Lambdas: [0, 0, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:15,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:15,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:15,114 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:15,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 13:09:15,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,152 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:15,153 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,153 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:15,153 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:15,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:15 BasicIcfg [2020-07-01 13:09:15,165 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:09:15,167 INFO L168 Benchmark]: Toolchain (without parser) took 4951.21 ms. Allocated memory was 649.6 MB in the beginning and 755.5 MB in the end (delta: 105.9 MB). Free memory was 562.7 MB in the beginning and 577.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 91.0 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:15,168 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:09:15,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.31 ms. Allocated memory was 649.6 MB in the beginning and 686.8 MB in the end (delta: 37.2 MB). Free memory was 562.7 MB in the beginning and 650.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:15,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.93 ms. Allocated memory is still 686.8 MB. Free memory was 649.4 MB in the beginning and 648.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:15,169 INFO L168 Benchmark]: Boogie Preprocessor took 19.05 ms. Allocated memory is still 686.8 MB. Free memory was 648.3 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:15,170 INFO L168 Benchmark]: RCFGBuilder took 227.81 ms. Allocated memory is still 686.8 MB. Free memory was 647.3 MB in the beginning and 632.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:15,170 INFO L168 Benchmark]: BlockEncodingV2 took 68.64 ms. Allocated memory is still 686.8 MB. Free memory was 632.4 MB in the beginning and 628.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:15,171 INFO L168 Benchmark]: TraceAbstraction took 143.94 ms. Allocated memory is still 686.8 MB. Free memory was 627.0 MB in the beginning and 618.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:15,171 INFO L168 Benchmark]: BuchiAutomizer took 4169.97 ms. Allocated memory was 686.8 MB in the beginning and 755.5 MB in the end (delta: 68.7 MB). Free memory was 618.4 MB in the beginning and 577.6 MB in the end (delta: 40.7 MB). Peak memory consumption was 109.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:15,175 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 283.31 ms. Allocated memory was 649.6 MB in the beginning and 686.8 MB in the end (delta: 37.2 MB). Free memory was 562.7 MB in the beginning and 650.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.93 ms. Allocated memory is still 686.8 MB. Free memory was 649.4 MB in the beginning and 648.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.05 ms. Allocated memory is still 686.8 MB. Free memory was 648.3 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 227.81 ms. Allocated memory is still 686.8 MB. Free memory was 647.3 MB in the beginning and 632.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 68.64 ms. Allocated memory is still 686.8 MB. Free memory was 632.4 MB in the beginning and 628.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 143.94 ms. Allocated memory is still 686.8 MB. Free memory was 627.0 MB in the beginning and 618.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4169.97 ms. Allocated memory was 686.8 MB in the beginning and 755.5 MB in the end (delta: 68.7 MB). Free memory was 618.4 MB in the beginning and 577.6 MB in the end (delta: 40.7 MB). Peak memory consumption was 109.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function j and consists of 6 locations. One nondeterministic module has affine ranking function i and consists of 5 locations. One nondeterministic module has affine ranking function i + -1 * j and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 37 SDslu, 0 SDs, 0 SdLazy, 87 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax178 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf92 smp100 dnf100 smp100 tf109 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2020-07-01 13:09:15,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:15,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:15,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:15,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:15,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,187 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:15,187 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:15,188 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@526b3617=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@273f199b=0, ~unnamed0~0~false=0, i=0, j=0} State at position 1 is {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@526b3617=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@273f199b=0, ~unnamed0~0~false=0, i=10, j=9} For i>1, the state at position i is {t=0 + sum_{k=0}^i 7*0^k + 2*0^k, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@526b3617=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@273f199b=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, i=10 + sum_{k=0}^i 0, j=9 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint 2GEVs Lambdas: [0, 0, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 [L13] COND TRUE i > 0 && j > 0 Loop: [L14] COND FALSE !(i < j) [L19] COND TRUE i > j [L20] j = i [L13] COND TRUE i > 0 && j > 0 [L14] COND FALSE !(i < j) [L19] COND FALSE !(i > j) [L22] i = i-1 [L13] COND TRUE i > 0 && j > 0 [L14] COND TRUE i < j [L15] t = i [L16] i = j [L17] j = t [L13] COND TRUE i > 0 && j > 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 13:09:06.915 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_SH5H0w/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:09:15.614 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check