/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:40:22,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:40:22,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:40:22,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:40:22,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:40:22,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:40:22,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:40:22,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:40:22,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:40:22,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:40:22,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:40:22,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:40:22,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:40:22,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:40:22,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:40:22,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:40:22,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:40:22,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:40:22,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:40:22,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:40:22,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:40:22,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:40:22,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:40:22,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:40:22,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:40:22,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:40:22,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:40:22,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:40:22,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:40:22,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:40:22,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:40:22,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:40:22,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:40:22,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:40:22,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:40:22,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:40:22,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:40:22,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:40:22,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:40:22,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:40:22,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:40:22,318 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 10:40:22,332 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:40:22,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:40:22,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:40:22,334 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:40:22,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:40:22,334 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:40:22,334 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:40:22,335 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:40:22,335 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:40:22,335 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:40:22,335 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:40:22,335 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:40:22,336 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:40:22,336 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:40:22,336 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:22,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:40:22,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:40:22,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:40:22,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:40:22,337 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:40:22,337 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:40:22,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:40:22,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:40:22,337 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:40:22,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:40:22,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:40:22,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:40:22,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:40:22,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:40:22,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:40:22,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:40:22,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:40:22,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:40:22,520 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:40:22,521 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:40:22,583 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_wTsuRu/tmp/042d175a28bb4eada0cbf3144d8dc797/FLAG203bd5547 [2020-07-01 10:40:22,922 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:40:22,923 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:40:22,930 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_wTsuRu/tmp/042d175a28bb4eada0cbf3144d8dc797/FLAG203bd5547 [2020-07-01 10:40:23,330 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_wTsuRu/tmp/042d175a28bb4eada0cbf3144d8dc797 [2020-07-01 10:40:23,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:40:23,342 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:40:23,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:40:23,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:40:23,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:40:23,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbbdbb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23, skipping insertion in model container [2020-07-01 10:40:23,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:40:23,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:40:23,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:40:23,608 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:40:23,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:40:23,639 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:40:23,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23 WrapperNode [2020-07-01 10:40:23,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:40:23,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:40:23,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:40:23,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:40:23,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:40:23,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:40:23,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:40:23,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:40:23,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:40:23,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:40:23,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:40:23,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:40:23,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:40:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:40:23,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:40:23,918 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:40:23,918 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:40:23,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:40:23 BoogieIcfgContainer [2020-07-01 10:40:23,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:40:23,922 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:40:23,923 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:40:23,925 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:40:23,926 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:40:23" (1/1) ... [2020-07-01 10:40:23,938 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 10:40:23,940 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:40:23,941 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:40:23,941 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:40:23,941 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:40:23,943 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:40:23,944 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:40:23,944 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:40:23,957 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:40:23,964 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 10:40:23,970 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:40:23,971 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:40:23,982 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:40:23,983 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 10:40:23,985 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:40:23,985 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:40:23,991 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 10:40:23,992 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:40:23,992 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:40:23,992 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:40:23,992 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:40:23,993 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:40:23,993 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 10:40:23,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:40:23 BasicIcfg [2020-07-01 10:40:23,994 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:40:23,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:40:23,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:40:23,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:40:23,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:40:23" (1/4) ... [2020-07-01 10:40:23,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff2b0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:40:23, skipping insertion in model container [2020-07-01 10:40:24,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (2/4) ... [2020-07-01 10:40:24,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff2b0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:40:24, skipping insertion in model container [2020-07-01 10:40:24,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:40:23" (3/4) ... [2020-07-01 10:40:24,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff2b0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:40:24, skipping insertion in model container [2020-07-01 10:40:24,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:40:23" (4/4) ... [2020-07-01 10:40:24,002 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:40:24,013 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:40:24,020 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:40:24,033 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:40:24,056 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:40:24,056 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:40:24,056 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:40:24,057 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:40:24,057 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:40:24,057 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:40:24,057 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:40:24,057 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:40:24,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 10:40:24,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:40:24,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 10:40:24,130 INFO L271 CegarLoopResult]: At program point L17-2(lines 17 20) the Hoare annotation is: true [2020-07-01 10:40:24,130 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:40:24,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:40:24 BasicIcfg [2020-07-01 10:40:24,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:40:24,139 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:40:24,139 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:40:24,143 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:40:24,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:40:24,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:40:23" (1/5) ... [2020-07-01 10:40:24,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c6593b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:40:24, skipping insertion in model container [2020-07-01 10:40:24,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:40:24,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:40:23" (2/5) ... [2020-07-01 10:40:24,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c6593b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:40:24, skipping insertion in model container [2020-07-01 10:40:24,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:40:24,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:40:23" (3/5) ... [2020-07-01 10:40:24,146 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c6593b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:40:24, skipping insertion in model container [2020-07-01 10:40:24,146 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:40:24,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:40:23" (4/5) ... [2020-07-01 10:40:24,147 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c6593b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:40:24, skipping insertion in model container [2020-07-01 10:40:24,147 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:40:24,147 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:40:24" (5/5) ... [2020-07-01 10:40:24,148 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:40:24,177 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:40:24,177 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:40:24,177 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:40:24,177 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:40:24,177 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:40:24,178 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:40:24,178 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:40:24,178 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:40:24,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:40:24,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:40:24,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:40:24,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:40:24,205 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:40:24,205 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:40:24,205 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:40:24,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:40:24,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:40:24,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:40:24,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:40:24,206 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:40:24,206 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:40:24,211 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [37] ULTIMATE.startENTRY-->L17-2: Formula: (< 1 (+ v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~y~0_10)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-07-01 10:40:24,211 INFO L796 eck$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 10:40:24,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:40:24,218 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-07-01 10:40:24,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:40:24,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182729649] [2020-07-01 10:40:24,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:40:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:40:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:40:24,305 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:40:24,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:40:24,306 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-07-01 10:40:24,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:40:24,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837644940] [2020-07-01 10:40:24,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:40:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:40:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:40:24,318 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:40:24,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:40:24,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2134, now seen corresponding path program 1 times [2020-07-01 10:40:24,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:40:24,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120413729] [2020-07-01 10:40:24,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:40:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:40:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:40:24,333 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:40:24,382 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:40:24,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:40:24,384 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:40:24,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:40:24,384 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:40:24,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:40:24,385 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:40:24,385 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:40:24,385 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:40:24,385 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:40:24,405 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 10:40:24,423 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 10:40:24,433 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 10:40:24,509 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:40:24,509 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:24,517 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:40:24,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:24,625 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:24,626 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/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:24,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:24,664 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:24,665 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:24,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:24,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:24,703 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 10:40:24,738 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:40:24,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:40:24,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:40:24,739 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:40:24,739 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:40:24,739 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:40:24,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:40:24,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 10:40:24,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:40:24,740 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:40:24,742 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 10:40:24,747 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 10:40:24,751 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 10:40:24,754 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 10:40:24,770 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 10:40:24,774 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 10:40:24,866 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:40:24,866 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:24,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:24,875 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:24,875 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:24,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:24,913 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:24,913 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:24,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:24,950 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:24,950 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:24,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:24,984 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:25,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:40:25,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:25,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:25,080 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=7, ULTIMATE.start_main_~x~0=16} 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=11}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=11}] Lambdas: [1, 1, 2] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:25,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:25,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:25,118 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:25,118 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:40:25,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:40:25,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:40:25,157 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:40:25,158 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 10:40:25,197 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:40:25,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,201 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:40:25,201 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,202 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:40:25,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:40:25 BasicIcfg [2020-07-01 10:40:25,212 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:40:25,215 INFO L168 Benchmark]: Toolchain (without parser) took 1871.69 ms. Allocated memory was 649.6 MB in the beginning and 691.0 MB in the end (delta: 41.4 MB). Free memory was 561.7 MB in the beginning and 527.4 MB in the end (delta: 34.2 MB). Peak memory consumption was 75.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:40:25,215 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:40:25,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.19 ms. Allocated memory was 649.6 MB in the beginning and 691.0 MB in the end (delta: 41.4 MB). Free memory was 561.7 MB in the beginning and 654.4 MB in the end (delta: -92.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:40:25,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.80 ms. Allocated memory is still 691.0 MB. Free memory was 654.4 MB in the beginning and 653.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:40:25,218 INFO L168 Benchmark]: Boogie Preprocessor took 19.72 ms. Allocated memory is still 691.0 MB. Free memory was 653.1 MB in the beginning and 651.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:40:25,218 INFO L168 Benchmark]: RCFGBuilder took 226.67 ms. Allocated memory is still 691.0 MB. Free memory was 651.7 MB in the beginning and 636.4 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:40:25,219 INFO L168 Benchmark]: BlockEncodingV2 took 71.24 ms. Allocated memory is still 691.0 MB. Free memory was 636.4 MB in the beginning and 631.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:40:25,220 INFO L168 Benchmark]: TraceAbstraction took 143.86 ms. Allocated memory is still 691.0 MB. Free memory was 631.0 MB in the beginning and 622.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:40:25,220 INFO L168 Benchmark]: BuchiAutomizer took 1073.12 ms. Allocated memory is still 691.0 MB. Free memory was 621.5 MB in the beginning and 527.4 MB in the end (delta: 94.1 MB). Peak memory consumption was 94.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:40:25,225 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 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 296.19 ms. Allocated memory was 649.6 MB in the beginning and 691.0 MB in the end (delta: 41.4 MB). Free memory was 561.7 MB in the beginning and 654.4 MB in the end (delta: -92.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.80 ms. Allocated memory is still 691.0 MB. Free memory was 654.4 MB in the beginning and 653.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.72 ms. Allocated memory is still 691.0 MB. Free memory was 653.1 MB in the beginning and 651.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 226.67 ms. Allocated memory is still 691.0 MB. Free memory was 651.7 MB in the beginning and 636.4 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.24 ms. Allocated memory is still 691.0 MB. Free memory was 636.4 MB in the beginning and 631.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 143.86 ms. Allocated memory is still 691.0 MB. Free memory was 631.0 MB in the beginning and 622.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1073.12 ms. Allocated memory is still 691.0 MB. Free memory was 621.5 MB in the beginning and 527.4 MB in the end (delta: 94.1 MB). Peak memory consumption was 94.1 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 10:40:25,235 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,236 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:40:25,236 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,236 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:40:25,237 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,237 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:40:25,238 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,238 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:40:25,238 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,239 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:40:25,239 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:40:25,239 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@3f408ed8=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59f3bac4=0, ~unnamed0~0~false=0, x=0, y=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f408ed8=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59f3bac4=0, ~unnamed0~0~false=0, x=16, y=7} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f408ed8=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59f3bac4=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, x=16 + sum_{k=0}^i 1 + 11 + 11*2^k + 11*k, y=7 + sum_{k=0}^i -1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 2] Mus: [0, 1] - 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 > 1 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 10:40:20.084 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_wTsuRu/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:40:25.747 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check