/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:33:36,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:33:36,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:33:36,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:33:36,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:33:36,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:33:36,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:33:36,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:33:36,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:33:36,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:33:36,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:33:36,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:33:36,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:33:36,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:33:36,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:33:36,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:33:36,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:33:36,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:33:36,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:33:36,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:33:36,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:33:36,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:33:36,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:33:36,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:33:36,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:33:36,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:33:36,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:33:36,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:33:36,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:33:36,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:33:36,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:33:36,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:33:36,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:33:36,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:33:36,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:33:36,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:33:36,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:33:36,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:33:36,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:33:36,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:33:36,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:33:36,896 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 10:33:36,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:33:36,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:33:36,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:33:36,911 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:33:36,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:33:36,912 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:33:36,912 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:33:36,912 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:33:36,912 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:33:36,913 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:33:36,913 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:33:36,913 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:33:36,913 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:33:36,913 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:33:36,913 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:36,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:33:36,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:33:36,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:33:36,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:33:36,914 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:33:36,914 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:33:36,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:33:36,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:33:36,915 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:33:36,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:33:36,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:33:36,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:33:36,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:33:36,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:33:37,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:33:37,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:33:37,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:33:37,103 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:33:37,103 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:33:37,104 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:33:37,165 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_AC_cMe/tmp/d36792d98fc54646b952336aa01fc5cf/FLAGc7e3b6ef9 [2020-07-01 10:33:37,499 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:33:37,500 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:33:37,506 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_AC_cMe/tmp/d36792d98fc54646b952336aa01fc5cf/FLAGc7e3b6ef9 [2020-07-01 10:33:37,907 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_AC_cMe/tmp/d36792d98fc54646b952336aa01fc5cf [2020-07-01 10:33:37,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:33:37,920 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:33:37,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:33:37,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:33:37,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:33:37,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:33:37" (1/1) ... [2020-07-01 10:33:37,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7aa7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:37, skipping insertion in model container [2020-07-01 10:33:37,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:33:37" (1/1) ... [2020-07-01 10:33:37,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:33:37,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:33:38,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:33:38,171 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:33:38,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:33:38,202 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:33:38,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38 WrapperNode [2020-07-01 10:33:38,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:33:38,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:33:38,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:33:38,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:33:38,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:33:38,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:33:38,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:33:38,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:33:38,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:33:38,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:33:38,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:33:38,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:33:38,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (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 10:33:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:33:38,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:33:38,468 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:33:38,468 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:33:38,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:33:38 BoogieIcfgContainer [2020-07-01 10:33:38,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:33:38,472 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:33:38,472 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:33:38,474 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:33:38,475 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:33:38" (1/1) ... [2020-07-01 10:33:38,489 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-07-01 10:33:38,490 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:33:38,491 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:33:38,492 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:33:38,492 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:33:38,494 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:33:38,495 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:33:38,495 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:33:38,509 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:33:38,517 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 10:33:38,522 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:33:38,524 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:33:38,542 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 10:33:38,544 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 10:33:38,546 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:33:38,546 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:33:38,546 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:33:38,547 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:33:38,547 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 10:33:38,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:33:38 BasicIcfg [2020-07-01 10:33:38,548 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:33:38,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:33:38,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:33:38,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:33:38,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:33:37" (1/4) ... [2020-07-01 10:33:38,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703d7967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:33:38, skipping insertion in model container [2020-07-01 10:33:38,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (2/4) ... [2020-07-01 10:33:38,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703d7967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:33:38, skipping insertion in model container [2020-07-01 10:33:38,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:33:38" (3/4) ... [2020-07-01 10:33:38,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703d7967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:33:38, skipping insertion in model container [2020-07-01 10:33:38,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:33:38" (4/4) ... [2020-07-01 10:33:38,557 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:33:38,568 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:33:38,577 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:33:38,592 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:33:38,620 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:33:38,620 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:33:38,620 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:33:38,621 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:33:38,621 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:33:38,621 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:33:38,621 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:33:38,621 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:33:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 10:33:38,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:33:38,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 10:33:38,695 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:33:38,695 INFO L271 CegarLoopResult]: At program point L27-2(lines 27 31) the Hoare annotation is: true [2020-07-01 10:33:38,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:33:38 BasicIcfg [2020-07-01 10:33:38,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:33:38,704 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:33:38,704 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:33:38,707 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:33:38,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:33:38,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:33:37" (1/5) ... [2020-07-01 10:33:38,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cdcc8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:33:38, skipping insertion in model container [2020-07-01 10:33:38,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:33:38,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:33:38" (2/5) ... [2020-07-01 10:33:38,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cdcc8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:33:38, skipping insertion in model container [2020-07-01 10:33:38,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:33:38,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:33:38" (3/5) ... [2020-07-01 10:33:38,711 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cdcc8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:33:38, skipping insertion in model container [2020-07-01 10:33:38,711 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:33:38,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:33:38" (4/5) ... [2020-07-01 10:33:38,711 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cdcc8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:33:38, skipping insertion in model container [2020-07-01 10:33:38,712 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:33:38,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:33:38" (5/5) ... [2020-07-01 10:33:38,713 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:33:38,741 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:33:38,742 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:33:38,742 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:33:38,742 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:33:38,742 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:33:38,742 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:33:38,742 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:33:38,743 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:33:38,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:33:38,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:33:38,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:33:38,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:33:38,769 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:33:38,769 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:33:38,769 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:33:38,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:33:38,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:33:38,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:33:38,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:33:38,770 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:33:38,771 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:33:38,776 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L27-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L27-2true [2020-07-01 10:33:38,776 INFO L796 eck$LassoCheckResult]: Loop: 4#L27-2true [24] L27-2-->L27-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 1)) (= v_ULTIMATE.start_main_~z~0_6 (* v_ULTIMATE.start_main_~y~0_7 (- 2))) (< v_ULTIMATE.start_main_~x~0_8 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L27-2true [2020-07-01 10:33:38,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:33:38,783 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-07-01 10:33:38,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:33:38,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815656095] [2020-07-01 10:33:38,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:33:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:33:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:33:38,867 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:33:38,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:33:38,868 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2020-07-01 10:33:38,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:33:38,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119342209] [2020-07-01 10:33:38,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:33:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:33:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:33:38,887 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:33:38,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:33:38,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1543, now seen corresponding path program 1 times [2020-07-01 10:33:38,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:33:38,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433861367] [2020-07-01 10:33:38,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:33:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:33:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:33:38,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:33:38,952 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:33:38,953 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:33:38,953 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:33:38,953 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:33:38,953 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:33:38,953 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:38,953 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:33:38,954 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:33:38,954 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:33:38,954 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:33:38,954 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:33:38,974 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 10:33:38,985 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 10:33:38,993 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 10:33:39,103 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:33:39,104 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 10:33:39,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,120 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,120 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:39,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,159 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,160 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:39,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,193 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 10:33:39,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:33:39,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,381 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,381 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=4, ULTIMATE.start_main_~z~0=-6, ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~y~0=4, ULTIMATE.start_main_~z~0=-6, ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~z~0=-2, ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=0, ULTIMATE.start_main_~x~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 1] [2020-07-01 10:33:39,436 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:33:39,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:33:39,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:33:39,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:33:39,437 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:33:39,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:39,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:33:39,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:33:39,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 10:33:39,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:33:39,437 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:33:39,440 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 10:33:39,444 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 10:33:39,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:33:39,468 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 10:33:39,471 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 10:33:39,474 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 10:33:39,477 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 10:33:39,558 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:33:39,558 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:39,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,565 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,566 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:39,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,599 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:39,636 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:33:39,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,784 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=4, ULTIMATE.start_main_~z~0=-6} Honda state: {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=4, ULTIMATE.start_main_~z~0=-6} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=0}, {ULTIMATE.start_main_~x~0=-4, ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~z~0=-2}, {ULTIMATE.start_main_~x~0=-2, ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~z~0=0}] Lambdas: [1, 1, 1] Nus: [0, 1] 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 10:33:39,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,822 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,822 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 10:33:39,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,858 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,858 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 10:33:39,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,896 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,896 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:39,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,932 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,932 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:33:39,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:33:39,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:33:39,968 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:33:39,968 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 10:33:40,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:33:40,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:33:40,012 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,013 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:33:40,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:33:40 BasicIcfg [2020-07-01 10:33:40,024 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:33:40,026 INFO L168 Benchmark]: Toolchain (without parser) took 2105.34 ms. Allocated memory was 514.9 MB in the beginning and 554.2 MB in the end (delta: 39.3 MB). Free memory was 438.5 MB in the beginning and 408.8 MB in the end (delta: 29.7 MB). Peak memory consumption was 69.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:33:40,027 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:33:40,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.54 ms. Allocated memory was 514.9 MB in the beginning and 554.2 MB in the end (delta: 39.3 MB). Free memory was 437.8 MB in the beginning and 522.3 MB in the end (delta: -84.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:33:40,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.16 ms. Allocated memory is still 554.2 MB. Free memory was 522.3 MB in the beginning and 520.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:33:40,029 INFO L168 Benchmark]: Boogie Preprocessor took 18.57 ms. Allocated memory is still 554.2 MB. Free memory was 520.3 MB in the beginning and 518.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:33:40,029 INFO L168 Benchmark]: RCFGBuilder took 216.29 ms. Allocated memory is still 554.2 MB. Free memory was 518.9 MB in the beginning and 507.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:33:40,030 INFO L168 Benchmark]: BlockEncodingV2 took 75.62 ms. Allocated memory is still 554.2 MB. Free memory was 507.7 MB in the beginning and 502.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:33:40,031 INFO L168 Benchmark]: TraceAbstraction took 154.60 ms. Allocated memory is still 554.2 MB. Free memory was 502.2 MB in the beginning and 494.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:33:40,031 INFO L168 Benchmark]: BuchiAutomizer took 1319.62 ms. Allocated memory is still 554.2 MB. Free memory was 494.0 MB in the beginning and 408.8 MB in the end (delta: 85.2 MB). Peak memory consumption was 85.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:33:40,035 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 281.54 ms. Allocated memory was 514.9 MB in the beginning and 554.2 MB in the end (delta: 39.3 MB). Free memory was 437.8 MB in the beginning and 522.3 MB in the end (delta: -84.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.16 ms. Allocated memory is still 554.2 MB. Free memory was 522.3 MB in the beginning and 520.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.57 ms. Allocated memory is still 554.2 MB. Free memory was 520.3 MB in the beginning and 518.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 216.29 ms. Allocated memory is still 554.2 MB. Free memory was 518.9 MB in the beginning and 507.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.62 ms. Allocated memory is still 554.2 MB. Free memory was 507.7 MB in the beginning and 502.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.60 ms. Allocated memory is still 554.2 MB. Free memory was 502.2 MB in the beginning and 494.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1319.62 ms. Allocated memory is still 554.2 MB. Free memory was 494.0 MB in the beginning and 408.8 MB in the end (delta: 85.2 MB). Peak memory consumption was 85.2 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: 27]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf106 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf92 smp100 dnf100 smp100 tf105 neg100 sie104 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 27]: Nontermination argument in form of an infinite program execution. [2020-07-01 10:33:40,045 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,046 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:33:40,046 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,047 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:33:40,047 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:33:40,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:33:40,049 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,049 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:33:40,050 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:33:40,050 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f2420d9=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38b48b23=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2239ec8f=0, z=-6, ~unnamed0~0~false=0, x=-1, y=4} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f2420d9=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38b48b23=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2239ec8f=0, z=-6, ~unnamed0~0~false=0, x=-1, y=4} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f2420d9=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38b48b23=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2239ec8f=0 + sum_{k=0}^i 0, z=-6 + sum_{k=0}^i -2, ~unnamed0~0~false=0 + sum_{k=0}^i 0, x=-1 + sum_{k=0}^i -4 + -2 + -2*k, y=4 + sum_{k=0}^i 1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [1, 1, 1] Mus: [0, 1] - NonterminatingLassoResult [Line: 27]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L23] int x, y, z; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] z = __VERIFIER_nondet_int() Loop: [L27] COND TRUE x < 0 [L28] x = x + z [L29] z = -2*y [L30] y = y + 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 10:33:34.703 ----------------------------------------------- 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_AC_cMe/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:33:40.276 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check