/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 13:09:37,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:09:37,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:09:37,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:09:37,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:09:37,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:09:37,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:09:37,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:09:37,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:09:37,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:09:37,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:09:37,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:09:37,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:09:37,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:09:37,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:09:37,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:09:37,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:09:37,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:09:37,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:09:37,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:09:37,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:09:37,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:09:37,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:09:37,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:09:37,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:09:37,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:09:37,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:09:37,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:09:37,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:09:37,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:09:37,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:09:37,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:09:37,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:09:37,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:09:37,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:09:37,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:09:37,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:09:37,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:09:37,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:09:37,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:09:37,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:09:37,592 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 13:09:37,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:09:37,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:09:37,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:09:37,608 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:09:37,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:09:37,608 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:09:37,608 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:09:37,608 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:09:37,609 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:09:37,609 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:09:37,609 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:09:37,609 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:09:37,609 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:09:37,609 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:09:37,610 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:37,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:09:37,610 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:09:37,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:09:37,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:09:37,610 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:09:37,611 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:09:37,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:09:37,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:09:37,611 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:09:37,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:09:37,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:09:37,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:09:37,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:09:37,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:09:37,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:09:37,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:09:37,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:09:37,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:09:37,793 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:09:37,793 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:09:37,862 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_zVjTrQ/tmp/d05bf4eed065412990a2ed78b6885d4b/FLAG88e86a38f [2020-07-01 13:09:38,193 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:09:38,194 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:09:38,200 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_zVjTrQ/tmp/d05bf4eed065412990a2ed78b6885d4b/FLAG88e86a38f [2020-07-01 13:09:38,630 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_zVjTrQ/tmp/d05bf4eed065412990a2ed78b6885d4b [2020-07-01 13:09:38,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:09:38,642 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:09:38,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:09:38,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:09:38,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:09:38,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a391af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38, skipping insertion in model container [2020-07-01 13:09:38,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:09:38,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:09:38,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:09:38,906 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:09:38,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:09:38,936 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:09:38,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38 WrapperNode [2020-07-01 13:09:38,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:09:38,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:09:38,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:09:38,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:09:38,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:09:38,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:09:38,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:09:38,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:09:38,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:09:38,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:09:38,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:09:38,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:09:38,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:09:39,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:09:39,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:09:39,214 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:09:39,215 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 13:09:39,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:39 BoogieIcfgContainer [2020-07-01 13:09:39,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:09:39,219 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:09:39,219 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:09:39,221 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:09:39,222 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:39" (1/1) ... [2020-07-01 13:09:39,233 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2020-07-01 13:09:39,235 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:09:39,235 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:09:39,236 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:09:39,236 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:09:39,238 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:09:39,239 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:09:39,239 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:09:39,252 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:09:39,259 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 13:09:39,264 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 13:09:39,265 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:09:39,281 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 13:09:39,283 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 13:09:39,285 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:09:39,285 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:09:39,285 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:09:39,285 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:09:39,286 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-07-01 13:09:39,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:39 BasicIcfg [2020-07-01 13:09:39,286 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:09:39,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:09:39,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:09:39,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:09:39,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:09:38" (1/4) ... [2020-07-01 13:09:39,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deecea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (2/4) ... [2020-07-01 13:09:39,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deecea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:39" (3/4) ... [2020-07-01 13:09:39,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deecea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:39" (4/4) ... [2020-07-01 13:09:39,295 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:09:39,306 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:09:39,313 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:09:39,327 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:09:39,350 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:09:39,350 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:09:39,350 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:09:39,350 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:09:39,350 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:09:39,351 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:09:39,351 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:09:39,351 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:09:39,365 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 13:09:39,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:09:39,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 13:09:39,424 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:09:39,424 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-07-01 13:09:39,425 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-07-01 13:09:39,425 INFO L271 CegarLoopResult]: At program point L11-2(lines 11 14) the Hoare annotation is: true [2020-07-01 13:09:39,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:39 BasicIcfg [2020-07-01 13:09:39,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:09:39,434 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:09:39,434 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:09:39,438 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:09:39,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:09:38" (1/5) ... [2020-07-01 13:09:39,439 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@375eb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (2/5) ... [2020-07-01 13:09:39,440 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@375eb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:39" (3/5) ... [2020-07-01 13:09:39,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@375eb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:39" (4/5) ... [2020-07-01 13:09:39,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@375eb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:39" (5/5) ... [2020-07-01 13:09:39,443 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:09:39,472 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:09:39,472 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:09:39,472 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:09:39,472 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:09:39,473 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:09:39,473 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:09:39,473 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:09:39,473 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:09:39,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 13:09:39,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:09:39,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:39,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:39,500 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:09:39,500 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:09:39,500 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:09:39,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 13:09:39,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:09:39,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:39,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:39,501 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:09:39,501 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:09:39,506 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 6#L11-2true [2020-07-01 13:09:39,507 INFO L796 eck$LassoCheckResult]: Loop: 6#L11-2true [34] L11-2-->L12: Formula: (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~j~0_7) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 5#L12true [36] L12-->L12-2: Formula: (>= v_ULTIMATE.start_main_~j~0_10 (+ v_ULTIMATE.start_main_~i~0_11 1)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 3#L12-2true [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 6#L11-2true [2020-07-01 13:09:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:39,513 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-07-01 13:09:39,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:39,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881395713] [2020-07-01 13:09:39,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,595 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:39,596 INFO L82 PathProgramCache]: Analyzing trace with hash 63606, now seen corresponding path program 1 times [2020-07-01 13:09:39,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:39,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171764314] [2020-07-01 13:09:39,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,613 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:39,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:39,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1731902, now seen corresponding path program 1 times [2020-07-01 13:09:39,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:39,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863699696] [2020-07-01 13:09:39,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:09:39,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863699696] [2020-07-01 13:09:39,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:09:39,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:09:39,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48554613] [2020-07-01 13:09:39,710 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:39,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:39,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:39,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:39,712 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:39,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:39,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:39,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:09:39,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:39,713 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:39,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:39,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:39,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:39,820 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:39,820 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:39,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:39,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:39,841 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:39,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:39,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:39,881 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:39,915 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:39,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,132 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:09:40,134 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:40,135 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:40,135 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:40,135 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:40,135 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:09:40,135 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:40,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:40,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:40,136 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:09:40,136 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:40,136 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:40,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:40,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:40,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:40,216 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:40,233 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:40,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 13:09:40,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:40,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:40,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:40,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:40,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:09:40,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:09:40,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:40,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 13:09:40,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:40,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:09:40,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:40,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:40,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:40,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:09:40,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:09:40,301 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:09:40,308 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 13:09:40,308 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:40,315 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:09:40,315 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:09:40,315 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:09:40,316 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-07-01 13:09:40,350 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:09:40,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:40,384 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:09:40,386 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:40,395 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:09:40,395 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:09:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:40,437 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:09:40,437 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:40,468 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:09:40,473 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 13:09:40,475 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-07-01 13:09:40,510 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 10 states and 13 transitions. Complement of second has 6 states. [2020-07-01 13:09:40,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 13:09:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:09:40,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2020-07-01 13:09:40,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 13:09:40,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:40,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 13:09:40,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:40,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 13:09:40,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:40,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2020-07-01 13:09:40,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:09:40,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2020-07-01 13:09:40,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 13:09:40,530 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 13:09:40,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2020-07-01 13:09:40,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:09:40,531 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-07-01 13:09:40,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2020-07-01 13:09:40,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-07-01 13:09:40,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-01 13:09:40,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2020-07-01 13:09:40,560 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-07-01 13:09:40,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:09:40,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:09:40,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:09:40,563 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. Second operand 3 states. [2020-07-01 13:09:40,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:09:40,577 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2020-07-01 13:09:40,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:09:40,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2020-07-01 13:09:40,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:09:40,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2020-07-01 13:09:40,580 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 13:09:40,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 13:09:40,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2020-07-01 13:09:40,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 13:09:40,581 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-07-01 13:09:40,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2020-07-01 13:09:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-07-01 13:09:40,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 13:09:40,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2020-07-01 13:09:40,582 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-07-01 13:09:40,582 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-07-01 13:09:40,583 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 13:09:40,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2020-07-01 13:09:40,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 13:09:40,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:40,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:40,584 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 13:09:40,584 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:09:40,584 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 80#L11-2 [34] L11-2-->L12: Formula: (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~j~0_7) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 81#L12 [28] L12-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~j~0_9 (+ v_ULTIMATE.start_main_~i~0_10 1)) (= v_ULTIMATE.start_main_~j~0_8 (+ v_ULTIMATE.start_main_~j~0_9 2))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 77#L12-2 [2020-07-01 13:09:40,584 INFO L796 eck$LassoCheckResult]: Loop: 77#L12-2 [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 78#L11-2 [34] L11-2-->L12: Formula: (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~j~0_7) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 82#L12 [36] L12-->L12-2: Formula: (>= v_ULTIMATE.start_main_~j~0_10 (+ v_ULTIMATE.start_main_~i~0_11 1)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 77#L12-2 [2020-07-01 13:09:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:40,585 INFO L82 PathProgramCache]: Analyzing trace with hash 55859, now seen corresponding path program 1 times [2020-07-01 13:09:40,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:40,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146367733] [2020-07-01 13:09:40,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:40,595 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:40,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:40,595 INFO L82 PathProgramCache]: Analyzing trace with hash 54906, now seen corresponding path program 2 times [2020-07-01 13:09:40,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:40,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054211483] [2020-07-01 13:09:40,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:40,603 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:40,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1664120584, now seen corresponding path program 1 times [2020-07-01 13:09:40,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:40,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324167319] [2020-07-01 13:09:40,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:40,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:40,635 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:40,636 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:40,636 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:40,636 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:40,636 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:40,636 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,636 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:40,636 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:40,637 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:09:40,637 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:40,637 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:40,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:40,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:40,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:40,694 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:40,694 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,705 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,705 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,745 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,745 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/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,781 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:40,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:41,236 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:09:41,239 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:41,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:41,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:41,239 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:41,239 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:09:41,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:41,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:41,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:41,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:09:41,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:41,241 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:41,242 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 13:09:41,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:41,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:41,297 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:41,298 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:41,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 13:09:41,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:41,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:41,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:41,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:41,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:09:41,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:09:41,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:41,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 13:09:41,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:41,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:41,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:41,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:41,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:09:41,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:09:41,361 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:41,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 13:09:41,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:09:41,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:09:41,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:09:41,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:09:41,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:09:41,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:09:41,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:09:41,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:09:41,409 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:09:41,410 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:09:41,415 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:09:41,415 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:09:41,415 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:09:41,415 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-07-01 13:09:41,447 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:09:41,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:41,473 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:09:41,474 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:41,480 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:09:41,481 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:41,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:09:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:09:41,499 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:09:41,500 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:09:41,562 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 13:09:41,562 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 4 loop predicates [2020-07-01 13:09:41,562 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-07-01 13:09:41,610 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 16 states and 18 transitions. Complement of second has 9 states. [2020-07-01 13:09:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 13:09:41,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:09:41,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-07-01 13:09:41,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 13:09:41,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:41,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 13:09:41,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:41,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 13:09:41,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:09:41,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2020-07-01 13:09:41,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 13:09:41,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 14 transitions. [2020-07-01 13:09:41,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 13:09:41,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 13:09:41,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2020-07-01 13:09:41,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:09:41,617 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-07-01 13:09:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2020-07-01 13:09:41,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-07-01 13:09:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 13:09:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-07-01 13:09:41,619 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-07-01 13:09:41,619 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-07-01 13:09:41,619 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 13:09:41,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2020-07-01 13:09:41,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 13:09:41,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:41,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:41,621 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:09:41,621 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2020-07-01 13:09:41,621 INFO L794 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 159#L11-2 [34] L11-2-->L12: Formula: (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~j~0_7) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 160#L12 [2020-07-01 13:09:41,621 INFO L796 eck$LassoCheckResult]: Loop: 160#L12 [28] L12-->L12-2: Formula: (and (< v_ULTIMATE.start_main_~j~0_9 (+ v_ULTIMATE.start_main_~i~0_10 1)) (= v_ULTIMATE.start_main_~j~0_8 (+ v_ULTIMATE.start_main_~j~0_9 2))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 154#L12-2 [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 155#L11-2 [34] L11-2-->L12: Formula: (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~j~0_7) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 164#L12 [36] L12-->L12-2: Formula: (>= v_ULTIMATE.start_main_~j~0_10 (+ v_ULTIMATE.start_main_~i~0_11 1)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 156#L12-2 [25] L12-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 157#L11-2 [34] L11-2-->L12: Formula: (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~j~0_7) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 160#L12 [2020-07-01 13:09:41,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:41,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1801, now seen corresponding path program 1 times [2020-07-01 13:09:41,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:41,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531111073] [2020-07-01 13:09:41,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:41,629 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:41,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:41,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1713256233, now seen corresponding path program 1 times [2020-07-01 13:09:41,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:41,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869063960] [2020-07-01 13:09:41,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:41,642 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:41,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:41,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1492047921, now seen corresponding path program 2 times [2020-07-01 13:09:41,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:41,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426771178] [2020-07-01 13:09:41,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:41,657 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:41,697 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:41,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:41,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:41,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:41,697 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:41,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:41,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:41,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:41,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:09:41,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:41,698 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:41,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:41,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:41,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:41,790 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:41,790 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:41,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:41,797 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:41,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:41,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:42,016 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:42,016 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=5, ULTIMATE.start_main_~i~0=5} Honda state: {ULTIMATE.start_main_~j~0=5, ULTIMATE.start_main_~i~0=5} Generalized eigenvectors: [{ULTIMATE.start_main_~j~0=2, ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~i~0=0}] Lambdas: [1, 0, 11] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:42,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:42,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:42,054 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:42,054 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:42,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:42,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:42,093 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:42,093 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: [] [2020-07-01 13:09:42,136 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:42,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:42,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:42,136 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:42,137 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:42,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:42,137 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:42,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:42,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 13:09:42,138 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:42,138 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:42,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:42,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:42,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:42,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:09:42,272 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:42,273 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:42,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:42,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:42,282 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:42,282 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/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:42,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:42,316 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 13:09:42,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:42,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:42,441 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:42,442 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~j~0=0} Honda state: {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~j~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=4, ULTIMATE.start_main_~j~0=4}, {ULTIMATE.start_main_~i~0=-2, ULTIMATE.start_main_~j~0=-2}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~j~0=0}] Lambdas: [1, 1, 7] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/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 13:09:42,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:42,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:42,479 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:42,479 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:42,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:42,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:42,516 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:42,516 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 13:09:42,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:42,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:42,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:42,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:42 BasicIcfg [2020-07-01 13:09:42,566 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:09:42,569 INFO L168 Benchmark]: Toolchain (without parser) took 3925.57 ms. Allocated memory was 649.6 MB in the beginning and 756.5 MB in the end (delta: 107.0 MB). Free memory was 556.3 MB in the beginning and 679.5 MB in the end (delta: -123.2 MB). Peak memory consumption was 217.9 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:42,569 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:09:42,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.70 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 556.3 MB in the beginning and 655.4 MB in the end (delta: -99.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:42,570 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.95 ms. Allocated memory is still 692.1 MB. Free memory was 655.4 MB in the beginning and 654.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:42,571 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 ms. Allocated memory is still 692.1 MB. Free memory was 654.0 MB in the beginning and 652.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:42,571 INFO L168 Benchmark]: RCFGBuilder took 226.66 ms. Allocated memory is still 692.1 MB. Free memory was 652.7 MB in the beginning and 638.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:42,572 INFO L168 Benchmark]: BlockEncodingV2 took 67.48 ms. Allocated memory is still 692.1 MB. Free memory was 638.4 MB in the beginning and 633.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:42,572 INFO L168 Benchmark]: TraceAbstraction took 146.06 ms. Allocated memory is still 692.1 MB. Free memory was 632.0 MB in the beginning and 623.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:42,573 INFO L168 Benchmark]: BuchiAutomizer took 3132.05 ms. Allocated memory was 692.1 MB in the beginning and 756.5 MB in the end (delta: 64.5 MB). Free memory was 623.8 MB in the beginning and 679.5 MB in the end (delta: -55.7 MB). Peak memory consumption was 242.9 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:42,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 10 edges - StatisticsResult: Encoded RCFG 4 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 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 293.70 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 556.3 MB in the beginning and 655.4 MB in the end (delta: -99.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.95 ms. Allocated memory is still 692.1 MB. Free memory was 655.4 MB in the beginning and 654.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.53 ms. Allocated memory is still 692.1 MB. Free memory was 654.0 MB in the beginning and 652.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 226.66 ms. Allocated memory is still 692.1 MB. Free memory was 652.7 MB in the beginning and 638.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 67.48 ms. Allocated memory is still 692.1 MB. Free memory was 638.4 MB in the beginning and 633.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.06 ms. Allocated memory is still 692.1 MB. Free memory was 632.0 MB in the beginning and 623.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3132.05 ms. Allocated memory was 692.1 MB in the beginning and 756.5 MB in the end (delta: 64.5 MB). Free memory was 623.8 MB in the beginning and 679.5 MB in the end (delta: -55.7 MB). Peak memory consumption was 242.9 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: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * i + j and consists of 4 locations. One nondeterministic module has affine ranking function -1 * i + j and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 14 SDslu, 0 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax184 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp90 dnf100 smp100 tf109 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 12]: Nontermination argument in form of an infinite program execution. [2020-07-01 13:09:42,586 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:42,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:42,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:42,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:42,589 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,589 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:42,589 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:42,589 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 {~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=0, j=0} State at position 1 is {~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=0, j=0} For i>1, the state at position i is {~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, i=0 + sum_{k=0}^i 4 + -2, j=0 + sum_{k=0}^i 4 + -2} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [1, 1, 7] Mus: [0, 0] - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] j = 0 [L9] i = 0 [L11] COND TRUE i <= j Loop: [L12] COND TRUE j-i < 1 [L12] j = j+2 [L13] i = i+1 [L11] COND TRUE i <= j [L12] COND FALSE !(j-i < 1) [L13] i = i+1 [L11] COND TRUE i <= j End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 13:09:35.396 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_zVjTrQ/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:09:42.815 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check