/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:31:57,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:31:57,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:31:57,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:31:57,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:31:57,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:31:57,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:31:57,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:31:57,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:31:57,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:31:57,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:31:57,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:31:57,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:31:57,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:31:57,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:31:57,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:31:57,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:31:57,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:31:57,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:31:57,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:31:57,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:31:57,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:31:57,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:31:57,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:31:57,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:31:57,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:31:57,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:31:57,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:31:57,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:31:57,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:31:57,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:31:57,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:31:57,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:31:57,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:31:57,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:31:57,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:31:57,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:31:57,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:31:57,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:31:57,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:31:57,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:31:57,653 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:31:57,668 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:31:57,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:31:57,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:31:57,670 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:31:57,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:31:57,670 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:31:57,670 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:31:57,670 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:31:57,670 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:31:57,671 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:31:57,671 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:31:57,671 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:31:57,671 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:31:57,671 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:31:57,671 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:31:57,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:31:57,672 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:31:57,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:31:57,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:31:57,672 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:31:57,673 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:31:57,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:31:57,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:31:57,673 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:31:57,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:31:57,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:31:57,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:31:57,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:31:57,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:31:58,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:31:58,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:31:58,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:31:58,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:31:58,055 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:31:58,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:31:58,129 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_qkjuBq/tmp/28c6d1fdcbd54b37a525565e2dcf8029/FLAG00fb381d5 [2020-07-01 10:31:58,488 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:31:58,489 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:31:58,496 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_qkjuBq/tmp/28c6d1fdcbd54b37a525565e2dcf8029/FLAG00fb381d5 [2020-07-01 10:31:58,914 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_qkjuBq/tmp/28c6d1fdcbd54b37a525565e2dcf8029 [2020-07-01 10:31:58,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:31:58,927 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:31:58,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:31:58,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:31:58,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:31:58,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:31:58" (1/1) ... [2020-07-01 10:31:58,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc0f43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:58, skipping insertion in model container [2020-07-01 10:31:58,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:31:58" (1/1) ... [2020-07-01 10:31:58,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:31:58,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:31:59,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:31:59,192 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:31:59,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:31:59,220 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:31:59,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59 WrapperNode [2020-07-01 10:31:59,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:31:59,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:31:59,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:31:59,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:31:59,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:31:59,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:31:59,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:31:59,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:31:59,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:31:59,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:31:59,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:31:59,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:31:59,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:31:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:31:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:31:59,466 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:31:59,466 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:31:59,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:31:59 BoogieIcfgContainer [2020-07-01 10:31:59,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:31:59,471 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:31:59,471 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:31:59,474 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:31:59,475 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:31:59" (1/1) ... [2020-07-01 10:31:59,487 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-07-01 10:31:59,488 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:31:59,489 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:31:59,490 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:31:59,490 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:31:59,492 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:31:59,493 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:31:59,493 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:31:59,505 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:31:59,509 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 10:31:59,515 INFO L70 emoveInfeasibleEdges]: Removed 5 edges and 4 locations because of local infeasibility [2020-07-01 10:31:59,516 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:31:59,518 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:31:59,520 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:31:59,521 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:31:59,521 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:31:59,521 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:31:59,522 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:31:59,522 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 10:31:59,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:31:59 BasicIcfg [2020-07-01 10:31:59,522 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:31:59,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:31:59,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:31:59,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:31:59,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:31:58" (1/4) ... [2020-07-01 10:31:59,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6fd4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:31:59, skipping insertion in model container [2020-07-01 10:31:59,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (2/4) ... [2020-07-01 10:31:59,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6fd4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:31:59, skipping insertion in model container [2020-07-01 10:31:59,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:31:59" (3/4) ... [2020-07-01 10:31:59,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6fd4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:31:59, skipping insertion in model container [2020-07-01 10:31:59,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:31:59" (4/4) ... [2020-07-01 10:31:59,531 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:31:59,541 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:31:59,549 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:31:59,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:31:59,585 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:31:59,585 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:31:59,585 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:31:59,586 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:31:59,586 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:31:59,586 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:31:59,586 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:31:59,586 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:31:59,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 10:31:59,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:31:59,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 10:31:59,663 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:31:59,663 INFO L271 CegarLoopResult]: At program point L10-2(lines 10 12) the Hoare annotation is: true [2020-07-01 10:31:59,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:31:59 BasicIcfg [2020-07-01 10:31:59,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:31:59,672 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:31:59,672 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:31:59,675 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:31:59,676 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:31:59,676 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:31:58" (1/5) ... [2020-07-01 10:31:59,677 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3677f331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:31:59, skipping insertion in model container [2020-07-01 10:31:59,677 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:31:59,677 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:31:59" (2/5) ... [2020-07-01 10:31:59,677 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3677f331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:31:59, skipping insertion in model container [2020-07-01 10:31:59,677 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:31:59,678 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:31:59" (3/5) ... [2020-07-01 10:31:59,678 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3677f331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:31:59, skipping insertion in model container [2020-07-01 10:31:59,678 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:31:59,678 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:31:59" (4/5) ... [2020-07-01 10:31:59,679 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3677f331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:31:59, skipping insertion in model container [2020-07-01 10:31:59,679 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:31:59,679 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:31:59" (5/5) ... [2020-07-01 10:31:59,680 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:31:59,709 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:31:59,709 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:31:59,709 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:31:59,710 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:31:59,710 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:31:59,710 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:31:59,710 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:31:59,710 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:31:59,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:31:59,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:31:59,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:31:59,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:31:59,735 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:31:59,735 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:31:59,736 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:31:59,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:31:59,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:31:59,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:31:59,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:31:59,737 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:31:59,737 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:31:59,742 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 7) InVars {} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 4#L10-2true [2020-07-01 10:31:59,742 INFO L796 eck$LassoCheckResult]: Loop: 4#L10-2true [23] L10-2-->L10-2: Formula: (= v_ULTIMATE.start_main_~x~0_4 2) InVars {} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L10-2true [2020-07-01 10:31:59,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:31:59,749 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-07-01 10:31:59,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:31:59,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497688489] [2020-07-01 10:31:59,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:31:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:31:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:31:59,841 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:31:59,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:31:59,842 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2020-07-01 10:31:59,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:31:59,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275344542] [2020-07-01 10:31:59,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:31:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:31:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:31:59,848 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:31:59,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:31:59,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1542, now seen corresponding path program 1 times [2020-07-01 10:31:59,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:31:59,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712098418] [2020-07-01 10:31:59,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:31:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:31:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:31:59,858 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:31:59,892 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:31:59,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:31:59,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:31:59,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:31:59,893 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:31:59,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:31:59,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:31:59,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:31:59,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 10:31:59,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:31:59,894 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:31:59,942 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 10:31:59,951 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 10:32:00,016 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:32:00,017 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:00,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:00,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:00,033 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:32:00,033 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:32:00,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:00,067 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:00,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:32:00,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:00,125 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:32:00,126 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=7} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-5}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [15, 0, 2] Nus: [0, 1] [2020-07-01 10:32:00,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:32:00 BasicIcfg [2020-07-01 10:32:00,173 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:32:00,176 INFO L168 Benchmark]: Toolchain (without parser) took 1248.55 ms. Allocated memory was 514.9 MB in the beginning and 557.3 MB in the end (delta: 42.5 MB). Free memory was 439.1 MB in the beginning and 470.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:00,176 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:32:00,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.40 ms. Allocated memory was 514.9 MB in the beginning and 557.3 MB in the end (delta: 42.5 MB). Free memory was 439.1 MB in the beginning and 525.9 MB in the end (delta: -86.8 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:00,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.89 ms. Allocated memory is still 557.3 MB. Free memory was 525.9 MB in the beginning and 524.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:00,178 INFO L168 Benchmark]: Boogie Preprocessor took 20.66 ms. Allocated memory is still 557.3 MB. Free memory was 524.3 MB in the beginning and 523.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:00,179 INFO L168 Benchmark]: RCFGBuilder took 193.77 ms. Allocated memory is still 557.3 MB. Free memory was 523.2 MB in the beginning and 513.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:00,180 INFO L168 Benchmark]: BlockEncodingV2 took 51.58 ms. Allocated memory is still 557.3 MB. Free memory was 513.2 MB in the beginning and 509.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:00,180 INFO L168 Benchmark]: TraceAbstraction took 147.52 ms. Allocated memory is still 557.3 MB. Free memory was 508.9 MB in the beginning and 499.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:00,181 INFO L168 Benchmark]: BuchiAutomizer took 501.90 ms. Allocated memory is still 557.3 MB. Free memory was 499.5 MB in the beginning and 470.3 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:00,185 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 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 293.40 ms. Allocated memory was 514.9 MB in the beginning and 557.3 MB in the end (delta: 42.5 MB). Free memory was 439.1 MB in the beginning and 525.9 MB in the end (delta: -86.8 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.89 ms. Allocated memory is still 557.3 MB. Free memory was 525.9 MB in the beginning and 524.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.66 ms. Allocated memory is still 557.3 MB. Free memory was 524.3 MB in the beginning and 523.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 193.77 ms. Allocated memory is still 557.3 MB. Free memory was 523.2 MB in the beginning and 513.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 51.58 ms. Allocated memory is still 557.3 MB. Free memory was 513.2 MB in the beginning and 509.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 147.52 ms. Allocated memory is still 557.3 MB. Free memory was 508.9 MB in the beginning and 499.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 501.90 ms. Allocated memory is still 557.3 MB. Free memory was 499.5 MB in the beginning and 470.3 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 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: 10]: 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 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: inital6 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq233 hnf100 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {\result=0, x=0} State at position 1 is {\result=0, x=7} For i>1, the state at position i is {\result=0 + sum_{k=0}^i 0, x=7 + sum_{k=0}^i -5*0^k} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [15, 0, 2] Mus: [0, 1] - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int x = 7; Loop: [L10] COND TRUE 1 [L11] x = 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 10:31:55.219 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_qkjuBq/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:32:00.420 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check