/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 11:03:22,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:03:22,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:03:22,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:03:22,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:03:22,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:03:22,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:03:22,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:03:22,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:03:22,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:03:22,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:03:22,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:03:22,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:03:22,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:03:22,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:03:22,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:03:22,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:03:22,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:03:22,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:03:22,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:03:22,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:03:22,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:03:22,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:03:22,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:03:22,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:03:22,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:03:22,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:03:22,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:03:22,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:03:22,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:03:22,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:03:22,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:03:22,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:03:22,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:03:22,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:03:22,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:03:22,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:03:22,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:03:22,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:03:22,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:03:22,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:03:22,334 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:03:22,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:03:22,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:03:22,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:03:22,350 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:03:22,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:03:22,350 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:03:22,350 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:03:22,350 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:03:22,351 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:03:22,351 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:03:22,351 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:03:22,351 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:03:22,351 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:03:22,351 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:03:22,352 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:22,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:03:22,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:03:22,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:03:22,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:03:22,352 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:03:22,353 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:03:22,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:03:22,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:03:22,353 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:03:22,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:03:22,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:03:22,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:03:22,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:03:22,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:03:22,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:03:22,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:03:22,533 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:03:22,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:03:22,535 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:03:22,536 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:03:22,638 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_glUTny/tmp/f2b7a49b65d5453eab35bf426f3c192f/FLAGc59bf0b2c [2020-07-01 11:03:22,968 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:03:22,969 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:03:22,976 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_glUTny/tmp/f2b7a49b65d5453eab35bf426f3c192f/FLAGc59bf0b2c [2020-07-01 11:03:23,387 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_glUTny/tmp/f2b7a49b65d5453eab35bf426f3c192f [2020-07-01 11:03:23,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:03:23,399 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:03:23,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:03:23,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:03:23,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:03:23,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47328254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23, skipping insertion in model container [2020-07-01 11:03:23,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:03:23,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:03:23,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:03:23,647 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:03:23,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:03:23,677 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:03:23,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23 WrapperNode [2020-07-01 11:03:23,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:03:23,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:03:23,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:03:23,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:03:23,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:03:23,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:03:23,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:03:23,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:03:23,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:03:23,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:03:23,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:03:23,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:03:23,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (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 11:03:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:03:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:03:23,926 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:03:23,926 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:03:23,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:23 BoogieIcfgContainer [2020-07-01 11:03:23,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:03:23,931 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:03:23,931 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:03:23,933 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:03:23,933 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,945 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 11:03:23,947 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:03:23,948 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:03:23,949 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:03:23,949 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:03:23,951 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:03:23,951 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:03:23,952 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:03:23,964 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:03:23,971 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:03:23,976 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:03:23,978 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:23,988 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:03:23,990 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 11:03:23,992 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:03:23,992 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:23,998 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:03:23,999 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:03:23,999 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:03:23,999 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:24,000 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:03:24,000 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:03:24,000 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 11:03:24,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:24 BasicIcfg [2020-07-01 11:03:24,001 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:03:24,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:03:24,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:03:24,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:03:24,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:03:23" (1/4) ... [2020-07-01 11:03:24,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31822044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (2/4) ... [2020-07-01 11:03:24,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31822044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:23" (3/4) ... [2020-07-01 11:03:24,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31822044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:24" (4/4) ... [2020-07-01 11:03:24,010 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:03:24,020 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:03:24,027 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:03:24,041 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:03:24,063 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:03:24,063 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:03:24,064 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:03:24,064 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:03:24,064 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:03:24,064 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:03:24,064 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:03:24,064 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:03:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 11:03:24,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:03:24,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 11:03:24,136 INFO L271 CegarLoopResult]: At program point L17-2(lines 17 20) the Hoare annotation is: true [2020-07-01 11:03:24,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:03:24,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:24 BasicIcfg [2020-07-01 11:03:24,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:03:24,146 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:03:24,146 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:03:24,149 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:03:24,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:03:23" (1/5) ... [2020-07-01 11:03:24,150 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@598bc1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,151 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (2/5) ... [2020-07-01 11:03:24,151 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@598bc1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,151 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:23" (3/5) ... [2020-07-01 11:03:24,152 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@598bc1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,152 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,152 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:24" (4/5) ... [2020-07-01 11:03:24,152 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@598bc1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,153 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:24" (5/5) ... [2020-07-01 11:03:24,154 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:03:24,182 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:03:24,183 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:03:24,183 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:03:24,183 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:03:24,183 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:03:24,183 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:03:24,183 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:03:24,184 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:03:24,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:03:24,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:24,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:24,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:24,210 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:03:24,210 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:24,210 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:03:24,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:03:24,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:24,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:24,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:24,211 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:03:24,212 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:24,216 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [37] ULTIMATE.startENTRY-->L17-2: Formula: (< 0 (+ v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~y~0_10)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-07-01 11:03:24,217 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [26] L17-2-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (< 0 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ (* v_ULTIMATE.start_main_~x~0_10 2) v_ULTIMATE.start_main_~y~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-07-01 11:03:24,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,223 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-07-01 11:03:24,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:24,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090664725] [2020-07-01 11:03:24,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,309 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:24,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,311 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-07-01 11:03:24,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:24,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840855661] [2020-07-01 11:03:24,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,322 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2134, now seen corresponding path program 1 times [2020-07-01 11:03:24,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:24,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640422920] [2020-07-01 11:03:24,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,337 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:24,381 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:24,382 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:24,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:24,383 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:24,383 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:03:24,383 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:24,383 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:24,383 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:24,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:03:24,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:24,384 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:24,403 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 11:03:24,422 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 11:03:24,432 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 11:03:24,510 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:24,511 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 11:03:24,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,517 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:03:24,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:24,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,624 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:24,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=7, ULTIMATE.start_main_~x~0=15} Honda state: {ULTIMATE.start_main_~y~0=7, ULTIMATE.start_main_~x~0=15} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=9}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=12}] Lambdas: [1, 2, 2] Nus: [0, 0] 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 11:03:24,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,662 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:24,663 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:03:24,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,700 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:24,700 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: [] [2020-07-01 11:03:24,736 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:24,736 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:24,736 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:24,736 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:24,736 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:03:24,737 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:24,737 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:24,737 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:24,737 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:03:24,737 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:24,737 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:24,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:03:24,743 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 11:03:24,748 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 11:03:24,752 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 11:03:24,771 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 11:03:24,774 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 11:03:24,870 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:24,870 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 11:03:24,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,877 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:24,877 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 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 11:03:24,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,914 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:24,914 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/sandbox2/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 11:03:24,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:24,951 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/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:24,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,984 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:25,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:25,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:25,093 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:25,094 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=4} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=2}, {ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~x~0=2}] Lambdas: [1, 2, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:25,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:25,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:25,131 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:25,131 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/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:25,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:25,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:25,168 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:25,169 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 11:03:25,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:03:25,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:03:25,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:03:25,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:25 BasicIcfg [2020-07-01 11:03:25,223 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:03:25,226 INFO L168 Benchmark]: Toolchain (without parser) took 1825.81 ms. Allocated memory was 649.6 MB in the beginning and 687.9 MB in the end (delta: 38.3 MB). Free memory was 557.4 MB in the beginning and 525.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 70.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,227 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:03:25,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.28 ms. Allocated memory was 649.6 MB in the beginning and 687.9 MB in the end (delta: 38.3 MB). Free memory was 557.4 MB in the beginning and 652.3 MB in the end (delta: -94.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.31 ms. Allocated memory is still 687.9 MB. Free memory was 652.3 MB in the beginning and 651.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,228 INFO L168 Benchmark]: Boogie Preprocessor took 18.33 ms. Allocated memory is still 687.9 MB. Free memory was 651.0 MB in the beginning and 649.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,229 INFO L168 Benchmark]: RCFGBuilder took 200.98 ms. Allocated memory is still 687.9 MB. Free memory was 649.6 MB in the beginning and 635.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,230 INFO L168 Benchmark]: BlockEncodingV2 took 70.63 ms. Allocated memory is still 687.9 MB. Free memory was 635.4 MB in the beginning and 630.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,230 INFO L168 Benchmark]: TraceAbstraction took 142.72 ms. Allocated memory is still 687.9 MB. Free memory was 630.0 MB in the beginning and 620.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,231 INFO L168 Benchmark]: BuchiAutomizer took 1077.81 ms. Allocated memory is still 687.9 MB. Free memory was 620.8 MB in the beginning and 525.2 MB in the end (delta: 95.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,235 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 277.28 ms. Allocated memory was 649.6 MB in the beginning and 687.9 MB in the end (delta: 38.3 MB). Free memory was 557.4 MB in the beginning and 652.3 MB in the end (delta: -94.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.31 ms. Allocated memory is still 687.9 MB. Free memory was 652.3 MB in the beginning and 651.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.33 ms. Allocated memory is still 687.9 MB. Free memory was 651.0 MB in the beginning and 649.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 200.98 ms. Allocated memory is still 687.9 MB. Free memory was 649.6 MB in the beginning and 635.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.63 ms. Allocated memory is still 687.9 MB. Free memory was 635.4 MB in the beginning and 630.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 142.72 ms. Allocated memory is still 687.9 MB. Free memory was 630.0 MB in the beginning and 620.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1077.81 ms. Allocated memory is still 687.9 MB. Free memory was 620.8 MB in the beginning and 525.2 MB in the end (delta: 95.6 MB). Peak memory consumption was 95.6 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: 17]: 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 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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: inital19 mio100 ax166 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf93 smp100 dnf100 smp100 tf103 neg100 sie109 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. [2020-07-01 11:03:25,245 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:03:25,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:03:25,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:03:25,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,248 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:03:25,248 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,248 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:03:25,249 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:03:25,249 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@4959ee5e=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40693a56=0, ~unnamed0~0~false=0, x=0, y=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4959ee5e=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40693a56=0, ~unnamed0~0~false=0, x=4, y=1} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4959ee5e=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@40693a56=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, x=4 + sum_{k=0}^i 1 + 2*2^k + 2*k + 2, y=1 + sum_{k=0}^i 1 + -2} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 2, 1] Mus: [1, 0] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] COND TRUE x + y > 0 Loop: [L17] COND TRUE x > 0 [L18] x = x + x + y [L19] y = y - 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:03:20.043 ----------------------------------------------- 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_glUTny/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:03:25.474 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check