/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 12:15:07,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:15:07,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:15:07,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:15:07,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:15:07,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:15:07,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:15:07,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:15:07,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:15:07,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:15:07,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:15:07,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:15:07,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:15:07,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:15:07,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:15:07,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:15:07,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:15:07,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:15:07,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:15:07,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:15:07,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:15:07,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:15:07,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:15:07,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:15:07,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:15:07,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:15:07,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:15:07,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:15:07,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:15:07,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:15:07,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:15:07,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:15:07,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:15:07,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:15:07,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:15:07,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:15:07,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:15:07,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:15:07,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:15:07,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:15:07,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:15:07,560 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:15:07,574 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:15:07,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:15:07,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:15:07,576 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:15:07,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:15:07,576 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:15:07,576 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:15:07,576 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:15:07,577 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:15:07,577 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:15:07,577 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:15:07,577 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:15:07,577 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:15:07,577 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:15:07,578 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:07,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:15:07,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:15:07,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:15:07,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:15:07,578 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:15:07,579 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:15:07,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:15:07,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:15:07,579 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:15:07,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:15:07,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:15:07,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:15:07,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:15:07,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:15:07,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:15:07,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:15:07,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:15:07,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:15:07,765 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:15:07,766 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:15:07,830 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_p3fffv/tmp/85196ffa0e26418b9e78151578cc0fdc/FLAG9e278d472 [2020-07-01 12:15:08,155 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:15:08,156 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:15:08,162 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_p3fffv/tmp/85196ffa0e26418b9e78151578cc0fdc/FLAG9e278d472 [2020-07-01 12:15:08,566 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_p3fffv/tmp/85196ffa0e26418b9e78151578cc0fdc [2020-07-01 12:15:08,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:15:08,578 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:15:08,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:15:08,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:15:08,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:15:08,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151912b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08, skipping insertion in model container [2020-07-01 12:15:08,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:15:08,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:15:08,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:15:08,844 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:15:08,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:15:08,874 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:15:08,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08 WrapperNode [2020-07-01 12:15:08,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:15:08,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:15:08,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:15:08,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:15:08,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:15:08,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:15:08,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:15:08,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:15:08,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (1/1) ... [2020-07-01 12:15:08,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:15:08,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:15:08,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:15:08,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:15:08,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (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 12:15:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:15:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:15:09,140 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:15:09,140 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:15:09,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:15:09 BoogieIcfgContainer [2020-07-01 12:15:09,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:15:09,145 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:15:09,145 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:15:09,147 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:15:09,148 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:15:09" (1/1) ... [2020-07-01 12:15:09,161 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-07-01 12:15:09,163 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:15:09,164 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:15:09,164 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:15:09,164 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:15:09,166 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:15:09,167 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:15:09,167 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:15:09,180 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:15:09,196 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 12:15:09,200 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:15:09,201 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:15:09,212 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:15:09,213 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 12:15:09,215 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:15:09,215 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:15:09,215 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:15:09,216 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:15:09,216 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 5 edges [2020-07-01 12:15:09,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:15:09 BasicIcfg [2020-07-01 12:15:09,216 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:15:09,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:15:09,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:15:09,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:15:09,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:15:08" (1/4) ... [2020-07-01 12:15:09,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8e43b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:15:09, skipping insertion in model container [2020-07-01 12:15:09,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (2/4) ... [2020-07-01 12:15:09,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8e43b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:15:09, skipping insertion in model container [2020-07-01 12:15:09,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:15:09" (3/4) ... [2020-07-01 12:15:09,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8e43b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:15:09, skipping insertion in model container [2020-07-01 12:15:09,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:15:09" (4/4) ... [2020-07-01 12:15:09,225 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:15:09,235 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:15:09,243 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:15:09,257 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:15:09,279 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:15:09,279 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:15:09,280 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:15:09,280 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:15:09,280 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:15:09,280 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:15:09,280 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:15:09,280 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:15:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 12:15:09,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:15:09,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 12:15:09,357 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:15:09,357 INFO L271 CegarLoopResult]: At program point L13-2(lines 13 17) the Hoare annotation is: true [2020-07-01 12:15:09,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:15:09 BasicIcfg [2020-07-01 12:15:09,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:15:09,366 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:15:09,366 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:15:09,369 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:15:09,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:15:09,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:15:08" (1/5) ... [2020-07-01 12:15:09,371 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9ded898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:15:09, skipping insertion in model container [2020-07-01 12:15:09,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:15:09,372 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:15:08" (2/5) ... [2020-07-01 12:15:09,372 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9ded898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:15:09, skipping insertion in model container [2020-07-01 12:15:09,372 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:15:09,372 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:15:09" (3/5) ... [2020-07-01 12:15:09,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9ded898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:15:09, skipping insertion in model container [2020-07-01 12:15:09,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:15:09,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:15:09" (4/5) ... [2020-07-01 12:15:09,374 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9ded898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:15:09, skipping insertion in model container [2020-07-01 12:15:09,374 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:15:09,374 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:15:09" (5/5) ... [2020-07-01 12:15:09,375 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:15:09,404 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:15:09,404 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:15:09,405 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:15:09,405 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:15:09,405 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:15:09,405 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:15:09,405 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:15:09,406 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:15:09,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 12:15:09,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:15:09,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:15:09,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:15:09,435 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:15:09,435 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:15:09,435 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:15:09,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 12:15:09,436 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:15:09,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:15:09,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:15:09,436 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:15:09,436 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:15:09,441 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [19] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 4#L13-2true [2020-07-01 12:15:09,442 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-2true [28] L13-2-->L13-2: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (> 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) 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_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, 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#L13-2true [2020-07-01 12:15:09,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:09,448 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-07-01 12:15:09,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:09,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609979195] [2020-07-01 12:15:09,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:09,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:15:09,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:09,537 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2020-07-01 12:15:09,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:09,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836002941] [2020-07-01 12:15:09,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:09,549 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:15:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:09,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1578, now seen corresponding path program 1 times [2020-07-01 12:15:09,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:09,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093647952] [2020-07-01 12:15:09,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:09,562 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:15:09,624 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:15:09,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:15:09,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:15:09,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:15:09,625 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:15:09,625 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:09,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:15:09,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:15:09,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:15:09,626 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:15:09,627 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:15:09,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:09,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:09,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:09,773 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:15:09,774 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 12:15:09,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:09,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:09,790 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:09,791 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 12:15:09,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:09,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:09,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:09,830 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 12:15:09,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:09,864 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 12:15:09,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:15:09,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:09,994 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:15:09,997 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:15:09,997 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:15:09,997 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:15:09,997 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:15:09,997 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:15:09,997 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:15:09,998 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:15:09,998 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:15:09,998 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:15:09,998 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:15:09,998 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:15:10,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:10,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:10,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:10,085 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:15:10,090 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 12:15:10,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:15:10,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:15:10,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:15:10,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:15:10,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:15:10,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:15:10,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:15:10,109 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 12:15:10,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:15:10,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:15:10,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:15:10,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:15:10,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:15:10,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:15:10,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:15:10,155 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 12:15:10,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:15:10,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:15:10,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:15:10,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:15:10,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:15:10,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:15:10,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:15:10,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:15:10,200 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:15:10,209 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:15:10,209 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 12:15:10,216 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:15:10,217 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:15:10,217 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:15:10,218 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 12:15:10,252 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:15:10,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:15:10,301 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:15:10,302 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:15:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:15:10,316 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:15:10,317 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:15:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:15:10,330 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:15:10,335 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:15:10,336 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-07-01 12:15:10,371 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 5 states and 17 transitions. Complement of second has 2 states. [2020-07-01 12:15:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:15:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:15:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2020-07-01 12:15:10,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 12:15:10,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:15:10,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:15:10,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:15:10,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:15:10,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:15:10,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 17 transitions. [2020-07-01 12:15:10,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:15:10,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 17 transitions. [2020-07-01 12:15:10,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:15:10,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 12:15:10,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 17 transitions. [2020-07-01 12:15:10,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:15:10,391 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 17 transitions. [2020-07-01 12:15:10,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 17 transitions. [2020-07-01 12:15:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-07-01 12:15:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:15:10,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-07-01 12:15:10,420 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 13 transitions. [2020-07-01 12:15:10,420 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 13 transitions. [2020-07-01 12:15:10,420 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:15:10,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 13 transitions. [2020-07-01 12:15:10,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:15:10,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:15:10,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:15:10,421 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:15:10,422 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:15:10,422 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 33#L13-2 [31] L13-2-->L13-2: Formula: (and (> 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (> 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 34#L13-2 [2020-07-01 12:15:10,422 INFO L796 eck$LassoCheckResult]: Loop: 34#L13-2 [28] L13-2-->L13-2: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (> 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) 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_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, 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] 34#L13-2 [2020-07-01 12:15:10,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:10,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1581, now seen corresponding path program 1 times [2020-07-01 12:15:10,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:10,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870308475] [2020-07-01 12:15:10,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:10,433 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:15:10,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:10,434 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 2 times [2020-07-01 12:15:10,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:10,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233632650] [2020-07-01 12:15:10,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:10,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:15:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:10,442 INFO L82 PathProgramCache]: Analyzing trace with hash 49039, now seen corresponding path program 1 times [2020-07-01 12:15:10,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:10,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448239006] [2020-07-01 12:15:10,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:15:10,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:15:10,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448239006] [2020-07-01 12:15:10,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:15:10,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:15:10,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603666503] [2020-07-01 12:15:10,519 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:15:10,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:15:10,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:15:10,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:15:10,520 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:15:10,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:10,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:15:10,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:15:10,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:15:10,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:15:10,521 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:15:10,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:10,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:10,528 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 12:15:10,606 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:15:10,606 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 12:15:10,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:10,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:10,618 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:10,618 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 12:15:10,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:10,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:10,664 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:10,665 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 12:15:10,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:10,701 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 12:15:10,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:15:10,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:10,816 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:15:10,819 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:15:10,819 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:15:10,819 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:15:10,819 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:15:10,820 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:15:10,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:15:10,820 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:15:10,820 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:15:10,820 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:15:10,820 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:15:10,820 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:15:10,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:10,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:10,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:10,898 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:15:10,899 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 12:15:10,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:15:10,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:15:10,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:15:10,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:15:10,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:15:10,909 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:15:10,909 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:15:10,914 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 12:15:10,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:15:10,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:15:10,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:15:10,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:15:10,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:15:10,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:15:10,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:15:10,965 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 12:15:11,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:15:11,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:15:11,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:15:11,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:15:11,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:15:11,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:15:11,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:15:11,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:15:11,011 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:15:11,015 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:15:11,015 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:15:11,026 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:15:11,026 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:15:11,026 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:15:11,026 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 12:15:11,058 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:15:11,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:15:11,084 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:15:11,084 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:15:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:15:11,093 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:15:11,094 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:15:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:15:11,094 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:15:11,095 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:15:11,095 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 13 transitions. cyclomatic complexity: 11 Second operand 2 states. [2020-07-01 12:15:11,117 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 13 transitions. cyclomatic complexity: 11. Second operand 2 states. Result 8 states and 29 transitions. Complement of second has 3 states. [2020-07-01 12:15:11,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:15:11,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:15:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2020-07-01 12:15:11,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:15:11,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:15:11,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:15:11,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:15:11,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 12:15:11,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:15:11,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 29 transitions. [2020-07-01 12:15:11,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 12:15:11,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 29 transitions. [2020-07-01 12:15:11,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 12:15:11,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 12:15:11,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 29 transitions. [2020-07-01 12:15:11,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:15:11,124 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 29 transitions. [2020-07-01 12:15:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 29 transitions. [2020-07-01 12:15:11,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-07-01 12:15:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 12:15:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 25 transitions. [2020-07-01 12:15:11,126 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 25 transitions. [2020-07-01 12:15:11,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:15:11,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:15:11,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:15:11,130 INFO L87 Difference]: Start difference. First operand 7 states and 25 transitions. Second operand 3 states. [2020-07-01 12:15:11,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:15:11,151 INFO L93 Difference]: Finished difference Result 7 states and 17 transitions. [2020-07-01 12:15:11,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:15:11,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 17 transitions. [2020-07-01 12:15:11,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:15:11,155 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 17 transitions. [2020-07-01 12:15:11,155 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:15:11,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 12:15:11,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 17 transitions. [2020-07-01 12:15:11,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:15:11,156 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 17 transitions. [2020-07-01 12:15:11,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 17 transitions. [2020-07-01 12:15:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 3. [2020-07-01 12:15:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:15:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 12:15:11,158 INFO L711 BuchiCegarLoop]: Abstraction has 3 states and 7 transitions. [2020-07-01 12:15:11,158 INFO L591 BuchiCegarLoop]: Abstraction has 3 states and 7 transitions. [2020-07-01 12:15:11,158 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:15:11,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 7 transitions. [2020-07-01 12:15:11,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:15:11,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:15:11,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:15:11,159 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:15:11,159 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:15:11,159 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~t~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 86#L13-2 [2020-07-01 12:15:11,159 INFO L796 eck$LassoCheckResult]: Loop: 86#L13-2 [29] L13-2-->L13-2: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~t~0_6 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (< 0 v_ULTIMATE.start_main_~i~0_8) (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~t~0_6)) 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_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, 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] 86#L13-2 [2020-07-01 12:15:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:11,160 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-07-01 12:15:11,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:11,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628964174] [2020-07-01 12:15:11,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:11,167 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:15:11,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:11,167 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2020-07-01 12:15:11,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:11,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392877677] [2020-07-01 12:15:11,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:11,174 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:15:11,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:15:11,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1579, now seen corresponding path program 1 times [2020-07-01 12:15:11,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:15:11,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450920680] [2020-07-01 12:15:11,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:15:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:15:11,183 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:15:11,223 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:15:11,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:15:11,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:15:11,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:15:11,224 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:15:11,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:11,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:15:11,224 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:15:11,224 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 12:15:11,225 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:15:11,225 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:15:11,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:11,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:11,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:11,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:11,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:11,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:15:11,326 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:15:11,327 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 12:15:11,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:11,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:11,335 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:11,335 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:11,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:11,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:11,371 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:11,372 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:11,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:11,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:11,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:11,409 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:11,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:11,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:11,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:11,460 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:11,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:11,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:11,497 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:11,497 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:11,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:15:11,530 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:15:11,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:15:11,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:15:11,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:15:11,706 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=6, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~j~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~t~0=6, 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: [12, 0, 7] Nus: [0, 1] [2020-07-01 12:15:11,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 12:15:11,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 12:15:11,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 12:15:11,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:15:11 BasicIcfg [2020-07-01 12:15:11,757 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:15:11,760 INFO L168 Benchmark]: Toolchain (without parser) took 3180.80 ms. Allocated memory was 649.6 MB in the beginning and 757.1 MB in the end (delta: 107.5 MB). Free memory was 560.4 MB in the beginning and 692.8 MB in the end (delta: -132.4 MB). Peak memory consumption was 222.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:15:11,760 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:15:11,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.28 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 560.4 MB in the beginning and 655.9 MB in the end (delta: -95.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:15:11,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 692.1 MB. Free memory was 655.9 MB in the beginning and 653.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:15:11,762 INFO L168 Benchmark]: Boogie Preprocessor took 19.42 ms. Allocated memory is still 692.1 MB. Free memory was 653.6 MB in the beginning and 652.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:15:11,763 INFO L168 Benchmark]: RCFGBuilder took 213.80 ms. Allocated memory is still 692.1 MB. Free memory was 652.5 MB in the beginning and 639.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:15:11,763 INFO L168 Benchmark]: BlockEncodingV2 took 72.02 ms. Allocated memory is still 692.1 MB. Free memory was 639.1 MB in the beginning and 634.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:15:11,764 INFO L168 Benchmark]: TraceAbstraction took 147.76 ms. Allocated memory is still 692.1 MB. Free memory was 633.6 MB in the beginning and 625.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:15:11,765 INFO L168 Benchmark]: BuchiAutomizer took 2391.28 ms. Allocated memory was 692.1 MB in the beginning and 757.1 MB in the end (delta: 65.0 MB). Free memory was 625.0 MB in the beginning and 692.8 MB in the end (delta: -67.8 MB). Peak memory consumption was 244.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:15:11,768 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 296.28 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 560.4 MB in the beginning and 655.9 MB in the end (delta: -95.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 692.1 MB. Free memory was 655.9 MB in the beginning and 653.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.42 ms. Allocated memory is still 692.1 MB. Free memory was 653.6 MB in the beginning and 652.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 213.80 ms. Allocated memory is still 692.1 MB. Free memory was 652.5 MB in the beginning and 639.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.02 ms. Allocated memory is still 692.1 MB. Free memory was 639.1 MB in the beginning and 634.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 147.76 ms. Allocated memory is still 692.1 MB. Free memory was 633.6 MB in the beginning and 625.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2391.28 ms. Allocated memory was 692.1 MB in the beginning and 757.1 MB in the end (delta: 65.0 MB). Free memory was 625.0 MB in the beginning and 692.8 MB in the end (delta: -67.8 MB). Peak memory consumption was 244.3 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, 2 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=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * i and consists of 2 locations. One nondeterministic module has affine ranking function j and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 38 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf90 smp100 dnf100 smp100 tf106 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 13]: Nontermination argument in form of an infinite program execution. [2020-07-01 12:15:11,778 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 12:15:11,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 12:15:11,780 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,780 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 12:15:11,780 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 12:15:11,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,782 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 12:15:11,782 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 12:15:11,782 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@14188576=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1663c0ce=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@14188576=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1663c0ce=0, ~unnamed0~0~false=0, i=6, j=6} For i>1, the state at position i is {t=0 + sum_{k=0}^i 6*0^k, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14188576=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1663c0ce=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, i=6 + sum_{k=0}^i 0, j=6 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [12, 0, 7] Mus: [0, 1] - NonterminatingLassoResult [Line: 13]: 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 Loop: [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 12:15:05.336 ----------------------------------------------- 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_p3fffv/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:15:12.008 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check