/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:14:36,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:14:36,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:14:36,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:14:36,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:14:36,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:14:36,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:14:36,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:14:36,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:14:36,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:14:36,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:14:36,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:14:36,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:14:36,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:14:36,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:14:36,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:14:36,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:14:36,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:14:36,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:14:36,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:14:36,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:14:36,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:14:36,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:14:36,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:14:36,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:14:36,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:14:36,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:14:36,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:14:36,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:14:36,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:14:36,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:14:36,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:14:36,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:14:36,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:14:36,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:14:36,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:14:36,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:14:36,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:14:36,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:14:36,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:14:36,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:14:36,892 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:14:36,906 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:14:36,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:14:36,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:14:36,908 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:14:36,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:14:36,908 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:14:36,908 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:14:36,908 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:14:36,909 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:14:36,909 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:14:36,909 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:14:36,909 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:14:36,910 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:14:36,910 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:14:36,911 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:36,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:14:36,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:14:36,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:14:36,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:14:36,911 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:14:36,912 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:14:36,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:14:36,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:14:36,912 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:14:36,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:14:36,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:14:36,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:14:36,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:14:36,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:14:37,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:14:37,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:14:37,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:14:37,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:14:37,097 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:14:37,098 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:14:37,163 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_riX_y0/tmp/1ade9982c8694008a0575703164a7a72/FLAG31a0cafa0 [2020-07-01 12:14:37,488 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:14:37,489 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:14:37,495 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_riX_y0/tmp/1ade9982c8694008a0575703164a7a72/FLAG31a0cafa0 [2020-07-01 12:14:38,877 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_riX_y0/tmp/1ade9982c8694008a0575703164a7a72 [2020-07-01 12:14:38,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:14:38,889 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:14:38,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:14:38,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:14:38,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:14:38,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e748b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:38, skipping insertion in model container [2020-07-01 12:14:38,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:14:38" (1/1) ... [2020-07-01 12:14:38,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:14:38,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:14:39,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:14:39,160 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:14:39,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:14:39,191 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:14:39,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39 WrapperNode [2020-07-01 12:14:39,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:14:39,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:14:39,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:14:39,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:14:39,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:14:39,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:14:39,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:14:39,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:14:39,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:14:39,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:14:39,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:14:39,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:14:39,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:14:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:14:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:14:39,479 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:14:39,480 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 12:14:39,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:14:39 BoogieIcfgContainer [2020-07-01 12:14:39,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:14:39,484 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:14:39,484 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:14:39,486 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:14:39,487 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:14:39" (1/1) ... [2020-07-01 12:14:39,499 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 13 edges [2020-07-01 12:14:39,501 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:14:39,501 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:14:39,502 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:14:39,502 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:14:39,504 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:14:39,504 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:14:39,505 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:14:39,518 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:14:39,532 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:14:39,536 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:14:39,538 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:14:39,553 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:14:39,555 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:14:39,556 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:14:39,557 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:14:39,557 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:14:39,557 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:14:39,557 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-07-01 12:14:39,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:14:39 BasicIcfg [2020-07-01 12:14:39,558 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:14:39,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:14:39,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:14:39,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:14:39,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:14:38" (1/4) ... [2020-07-01 12:14:39,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7752a877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (2/4) ... [2020-07-01 12:14:39,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7752a877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:14:39" (3/4) ... [2020-07-01 12:14:39,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7752a877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:14:39" (4/4) ... [2020-07-01 12:14:39,567 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:14:39,578 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:14:39,587 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:14:39,601 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:14:39,625 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:14:39,625 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:14:39,625 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:14:39,625 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:14:39,625 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:14:39,626 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:14:39,626 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:14:39,626 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:14:39,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 12:14:39,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:14:39,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 12:14:39,704 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:14:39,705 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-07-01 12:14:39,705 INFO L268 CegarLoopResult]: For program point L10-2(lines 7 15) no Hoare annotation was computed. [2020-07-01 12:14:39,705 INFO L268 CegarLoopResult]: For program point L7(lines 7 15) no Hoare annotation was computed. [2020-07-01 12:14:39,705 INFO L271 CegarLoopResult]: At program point L6-2(lines 6 17) the Hoare annotation is: true [2020-07-01 12:14:39,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:14:39 BasicIcfg [2020-07-01 12:14:39,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:14:39,715 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:14:39,715 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:14:39,718 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:14:39,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:14:38" (1/5) ... [2020-07-01 12:14:39,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ebdeb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:14:39" (2/5) ... [2020-07-01 12:14:39,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ebdeb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:14:39" (3/5) ... [2020-07-01 12:14:39,721 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ebdeb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:14:39" (4/5) ... [2020-07-01 12:14:39,722 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ebdeb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:14:39, skipping insertion in model container [2020-07-01 12:14:39,722 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:14:39,722 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:14:39" (5/5) ... [2020-07-01 12:14:39,723 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:14:39,750 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:14:39,751 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:14:39,751 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:14:39,751 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:14:39,751 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:14:39,751 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:14:39,751 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:14:39,752 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:14:39,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:14:39,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:14:39,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:14:39,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:14:39,777 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:14:39,777 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:14:39,777 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:14:39,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:14:39,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:14:39,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:14:39,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:14:39,778 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:14:39,778 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:14:39,783 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 7#L6-2true [2020-07-01 12:14:39,784 INFO L796 eck$LassoCheckResult]: Loop: 7#L6-2true [48] L6-2-->L7: Formula: (< 0 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4} AuxVars[] AssignedVars[] 5#L7true [36] L7-->L10-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 (- 1))) (< 0 v_ULTIMATE.start_test_fun_~x_6)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 6#L10-2true [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 7#L6-2true [2020-07-01 12:14:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:39,790 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 12:14:39,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:39,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647044342] [2020-07-01 12:14:39,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,869 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:39,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:39,870 INFO L82 PathProgramCache]: Analyzing trace with hash 77074, now seen corresponding path program 1 times [2020-07-01 12:14:39,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:39,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96418726] [2020-07-01 12:14:39,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,886 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:39,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:39,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1983698, now seen corresponding path program 1 times [2020-07-01 12:14:39,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:39,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425953009] [2020-07-01 12:14:39,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:39,903 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:39,951 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:39,952 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:39,952 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:39,952 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:39,953 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:14:39,953 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:39,953 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:39,953 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:39,953 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:14:39,953 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:39,954 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:39,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:39,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:39,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,061 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:40,062 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:40,067 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:14:40,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:40,126 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:14:40,127 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=6}, {ULTIMATE.start_test_fun_~c~0=-5}, {ULTIMATE.start_test_fun_~c~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:40,160 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:14:40,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:40,233 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:14:40,236 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:40,236 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:40,236 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:40,236 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:40,236 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:14:40,236 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:40,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:40,237 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:14:40,237 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:40,237 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:40,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,302 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:40,308 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:14:40,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:40,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:40,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:40,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:40,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:40,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:40,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:40,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:14:40,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:40,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:40,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:40,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:40,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:40,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:40,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:40,368 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:14:40,372 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:14:40,373 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,377 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:14:40,377 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:14:40,378 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:14:40,378 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x) = 1*ULTIMATE.start_test_fun_~x Supporting invariants [] [2020-07-01 12:14:40,412 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:14:40,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:40,446 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:14:40,447 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:40,459 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:40,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:14:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:40,521 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:40,521 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:40,522 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:14:40,527 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 12:14:40,529 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-07-01 12:14:40,589 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 18 states and 30 transitions. Complement of second has 6 states. [2020-07-01 12:14:40,590 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 12:14:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:14:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-07-01 12:14:40,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 12:14:40,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 12:14:40,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 12:14:40,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:40,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 30 transitions. [2020-07-01 12:14:40,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:14:40,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 27 transitions. [2020-07-01 12:14:40,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:14:40,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 12:14:40,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 27 transitions. [2020-07-01 12:14:40,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:14:40,613 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 27 transitions. [2020-07-01 12:14:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 27 transitions. [2020-07-01 12:14:40,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-07-01 12:14:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-01 12:14:40,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2020-07-01 12:14:40,643 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 12:14:40,644 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 12:14:40,644 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:14:40,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 24 transitions. [2020-07-01 12:14:40,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:14:40,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:14:40,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:14:40,645 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:14:40,645 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:14:40,646 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 75#L6-2 [48] L6-2-->L7: Formula: (< 0 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4} AuxVars[] AssignedVars[] 76#L7 [2020-07-01 12:14:40,646 INFO L796 eck$LassoCheckResult]: Loop: 76#L7 [46] L7-->L10: Formula: (>= 0 v_ULTIMATE.start_test_fun_~x_7) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} AuxVars[] AssignedVars[] 70#L10 [32] L10-->L10-2: Formula: (and (< 0 v_ULTIMATE.start_test_fun_~y_6) (= v_ULTIMATE.start_test_fun_~y_5 (+ v_ULTIMATE.start_test_fun_~y_6 (- 1)))) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y] 71#L10-2 [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 80#L6-2 [48] L6-2-->L7: Formula: (< 0 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4} AuxVars[] AssignedVars[] 76#L7 [2020-07-01 12:14:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,647 INFO L82 PathProgramCache]: Analyzing trace with hash 2063, now seen corresponding path program 1 times [2020-07-01 12:14:40,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402559807] [2020-07-01 12:14:40,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,655 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2325916, now seen corresponding path program 1 times [2020-07-01 12:14:40,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753168917] [2020-07-01 12:14:40,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:40,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1906626218, now seen corresponding path program 1 times [2020-07-01 12:14:40,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:14:40,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767742287] [2020-07-01 12:14:40,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:14:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:14:40,678 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:14:40,704 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:40,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:40,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:40,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:40,705 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:14:40,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:40,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:40,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:14:40,706 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:40,706 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:40,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,716 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 12:14:40,757 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:40,757 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:40,765 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:14:40,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:40,817 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:14:40,817 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=6}, {ULTIMATE.start_test_fun_~c~0=-5}, {ULTIMATE.start_test_fun_~c~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:14:40,850 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:14:40,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:14:40,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:14:40,967 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:14:40,970 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:14:40,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:14:40,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:14:40,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:14:40,970 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:14:40,971 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:40,971 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:14:40,971 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:14:40,971 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:14:40,971 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:14:40,972 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:14:40,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:40,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:14:41,026 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:14:41,027 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:14:41,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:41,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:41,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:41,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:41,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:41,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:41,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:41,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:14:41,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:14:41,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:14:41,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:14:41,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:14:41,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:14:41,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:14:41,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:14:41,079 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:14:41,083 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:14:41,084 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:14:41,096 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:14:41,096 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:14:41,096 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:14:41,096 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~y) = 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-07-01 12:14:41,126 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:14:41,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:14:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:41,147 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:14:41,148 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:41,153 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:41,153 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:14:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:14:41,173 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:14:41,174 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:14:41,202 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:14:41,203 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 12:14:41,203 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-07-01 12:14:41,282 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 96 states and 164 transitions. Complement of second has 18 states. [2020-07-01 12:14:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 12:14:41,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:14:41,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-07-01 12:14:41,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 12:14:41,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 12:14:41,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-01 12:14:41,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:14:41,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 164 transitions. [2020-07-01 12:14:41,294 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:14:41,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 0 states and 0 transitions. [2020-07-01 12:14:41,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:14:41,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:14:41,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:14:41,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:14:41,295 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:14:41,295 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:14:41,295 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:14:41,295 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:14:41,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:14:41,296 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:14:41,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:14:41,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:14:41 BasicIcfg [2020-07-01 12:14:41,302 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:14:41,305 INFO L168 Benchmark]: Toolchain (without parser) took 2414.59 ms. Allocated memory was 649.6 MB in the beginning and 687.3 MB in the end (delta: 37.7 MB). Free memory was 561.7 MB in the beginning and 448.1 MB in the end (delta: 113.6 MB). Peak memory consumption was 151.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:41,305 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:14:41,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.23 ms. Allocated memory was 649.6 MB in the beginning and 687.3 MB in the end (delta: 37.7 MB). Free memory was 561.7 MB in the beginning and 651.8 MB in the end (delta: -90.1 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:41,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 687.3 MB. Free memory was 651.8 MB in the beginning and 649.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:41,307 INFO L168 Benchmark]: Boogie Preprocessor took 20.33 ms. Allocated memory is still 687.3 MB. Free memory is still 649.1 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:14:41,307 INFO L168 Benchmark]: RCFGBuilder took 234.03 ms. Allocated memory is still 687.3 MB. Free memory was 649.1 MB in the beginning and 633.2 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:41,308 INFO L168 Benchmark]: BlockEncodingV2 took 74.02 ms. Allocated memory is still 687.3 MB. Free memory was 633.2 MB in the beginning and 627.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:41,308 INFO L168 Benchmark]: TraceAbstraction took 154.87 ms. Allocated memory is still 687.3 MB. Free memory was 627.8 MB in the beginning and 618.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:41,309 INFO L168 Benchmark]: BuchiAutomizer took 1587.57 ms. Allocated memory is still 687.3 MB. Free memory was 618.3 MB in the beginning and 448.1 MB in the end (delta: 170.2 MB). Peak memory consumption was 170.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:14:41,313 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 13 edges - StatisticsResult: Encoded RCFG 5 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 302.23 ms. Allocated memory was 649.6 MB in the beginning and 687.3 MB in the end (delta: 37.7 MB). Free memory was 561.7 MB in the beginning and 651.8 MB in the end (delta: -90.1 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 687.3 MB. Free memory was 651.8 MB in the beginning and 649.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.33 ms. Allocated memory is still 687.3 MB. Free memory is still 649.1 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 234.03 ms. Allocated memory is still 687.3 MB. Free memory was 649.1 MB in the beginning and 633.2 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 74.02 ms. Allocated memory is still 687.3 MB. Free memory was 633.2 MB in the beginning and 627.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.87 ms. Allocated memory is still 687.3 MB. Free memory was 627.8 MB in the beginning and 618.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1587.57 ms. Allocated memory is still 687.3 MB. Free memory was 618.3 MB in the beginning and 448.1 MB in the end (delta: 170.2 MB). Peak memory consumption was 170.2 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 38 SDslu, 24 SDs, 0 SdLazy, 43 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:14:34.654 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_riX_y0/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:14:41.949 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check