/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:56:04,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:56:04,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:56:04,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:56:04,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:56:04,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:56:04,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:56:04,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:56:04,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:56:04,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:56:04,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:56:04,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:56:04,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:56:04,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:56:04,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:56:04,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:56:04,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:56:04,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:56:04,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:56:04,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:56:04,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:56:04,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:56:04,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:56:04,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:56:04,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:56:04,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:56:04,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:56:04,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:56:04,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:56:04,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:56:04,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:56:04,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:56:04,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:56:04,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:56:04,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:56:04,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:56:04,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:56:04,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:56:04,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:56:04,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:56:04,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:56:04,905 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:56:04,919 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:56:04,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:56:04,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:56:04,921 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:56:04,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:56:04,921 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:56:04,921 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:56:04,921 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:56:04,922 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:56:04,922 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:56:04,922 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:56:04,922 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:56:04,922 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:56:04,922 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:56:04,923 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:56:04,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:56:04,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:56:04,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:56:04,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:56:04,923 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:56:04,924 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:56:04,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:56:04,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:56:04,924 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:56:04,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:56:04,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:56:04,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:56:04,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:56:04,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:56:05,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:56:05,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:56:05,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:56:05,114 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:56:05,114 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:56:05,115 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:56:05,179 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_FdE3o3/tmp/a00f68c79ba14b3b83b5eafd72054e7f/FLAGdeb31cc34 [2020-07-01 10:56:05,508 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:56:05,509 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:56:05,528 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_FdE3o3/tmp/a00f68c79ba14b3b83b5eafd72054e7f/FLAGdeb31cc34 [2020-07-01 10:56:05,935 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_FdE3o3/tmp/a00f68c79ba14b3b83b5eafd72054e7f [2020-07-01 10:56:05,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:56:05,948 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:56:05,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:56:05,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:56:05,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:56:05,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:56:05" (1/1) ... [2020-07-01 10:56:05,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713aea39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:05, skipping insertion in model container [2020-07-01 10:56:05,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:56:05" (1/1) ... [2020-07-01 10:56:05,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:56:05,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:56:06,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:56:06,205 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:56:06,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:56:06,237 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:56:06,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06 WrapperNode [2020-07-01 10:56:06,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:56:06,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:56:06,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:56:06,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:56:06,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:56:06,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:56:06,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:56:06,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:56:06,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:56:06,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:56:06,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:56:06,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:56:06,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:56:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:56:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:56:06,569 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:56:06,569 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-01 10:56:06,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:56:06 BoogieIcfgContainer [2020-07-01 10:56:06,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:56:06,574 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:56:06,574 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:56:06,578 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:56:06,579 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:56:06" (1/1) ... [2020-07-01 10:56:06,593 INFO L313 BlockEncoder]: Initial Icfg 21 locations, 33 edges [2020-07-01 10:56:06,595 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:56:06,595 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:56:06,596 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:56:06,596 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:56:06,598 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:56:06,599 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:56:06,599 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:56:06,620 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:56:06,640 INFO L200 BlockEncoder]: SBE split 11 edges [2020-07-01 10:56:06,644 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 10:56:06,646 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:56:06,660 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 10:56:06,663 INFO L70 RemoveSinkStates]: Removed 5 edges and 3 locations by removing sink states [2020-07-01 10:56:06,665 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:56:06,665 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:56:06,666 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:56:06,666 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:56:06,667 INFO L313 BlockEncoder]: Encoded RCFG 15 locations, 34 edges [2020-07-01 10:56:06,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:56:06 BasicIcfg [2020-07-01 10:56:06,668 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:56:06,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:56:06,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:56:06,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:56:06,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:56:05" (1/4) ... [2020-07-01 10:56:06,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8c9f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:56:06, skipping insertion in model container [2020-07-01 10:56:06,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (2/4) ... [2020-07-01 10:56:06,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8c9f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:56:06, skipping insertion in model container [2020-07-01 10:56:06,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:56:06" (3/4) ... [2020-07-01 10:56:06,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8c9f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:56:06, skipping insertion in model container [2020-07-01 10:56:06,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:56:06" (4/4) ... [2020-07-01 10:56:06,677 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:56:06,691 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:56:06,699 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:56:06,715 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:56:06,741 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:56:06,742 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:56:06,742 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:56:06,742 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:56:06,742 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:56:06,743 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:56:06,743 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:56:06,743 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:56:06,759 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-07-01 10:56:06,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:56:06,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-07-01 10:56:06,822 INFO L271 CegarLoopResult]: At program point L35-3(lines 35 44) the Hoare annotation is: true [2020-07-01 10:56:06,822 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:56:06,822 INFO L268 CegarLoopResult]: For program point L24(lines 24 28) no Hoare annotation was computed. [2020-07-01 10:56:06,822 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2020-07-01 10:56:06,822 INFO L268 CegarLoopResult]: For program point L23-1(lines 23 29) no Hoare annotation was computed. [2020-07-01 10:56:06,823 INFO L268 CegarLoopResult]: For program point L49(lines 49 52) no Hoare annotation was computed. [2020-07-01 10:56:06,823 INFO L268 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-07-01 10:56:06,823 INFO L268 CegarLoopResult]: For program point L15(lines 15 21) no Hoare annotation was computed. [2020-07-01 10:56:06,823 INFO L268 CegarLoopResult]: For program point L15-1(lines 15 21) no Hoare annotation was computed. [2020-07-01 10:56:06,823 INFO L268 CegarLoopResult]: For program point L46(lines 46 53) no Hoare annotation was computed. [2020-07-01 10:56:06,823 INFO L268 CegarLoopResult]: For program point L46-2(lines 1 57) no Hoare annotation was computed. [2020-07-01 10:56:06,824 INFO L268 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-07-01 10:56:06,824 INFO L268 CegarLoopResult]: For program point L37-2(lines 35 44) no Hoare annotation was computed. [2020-07-01 10:56:06,824 INFO L268 CegarLoopResult]: For program point L34(lines 34 45) no Hoare annotation was computed. [2020-07-01 10:56:06,824 INFO L268 CegarLoopResult]: For program point L35-1(lines 35 44) no Hoare annotation was computed. [2020-07-01 10:56:06,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:56:06 BasicIcfg [2020-07-01 10:56:06,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:56:06,834 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:56:06,834 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:56:06,837 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:56:06,838 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:56:06,838 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:56:05" (1/5) ... [2020-07-01 10:56:06,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bef5d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:56:06, skipping insertion in model container [2020-07-01 10:56:06,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:56:06,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:56:06" (2/5) ... [2020-07-01 10:56:06,840 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bef5d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:56:06, skipping insertion in model container [2020-07-01 10:56:06,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:56:06,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:56:06" (3/5) ... [2020-07-01 10:56:06,840 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bef5d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:56:06, skipping insertion in model container [2020-07-01 10:56:06,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:56:06,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:56:06" (4/5) ... [2020-07-01 10:56:06,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bef5d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:56:06, skipping insertion in model container [2020-07-01 10:56:06,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:56:06,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:56:06" (5/5) ... [2020-07-01 10:56:06,843 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:56:06,869 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:56:06,869 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:56:06,869 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:56:06,869 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:56:06,869 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:56:06,869 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:56:06,870 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:56:06,870 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:56:06,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-07-01 10:56:06,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2020-07-01 10:56:06,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:56:06,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:56:06,899 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:56:06,899 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 10:56:06,899 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:56:06,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-07-01 10:56:06,901 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2020-07-01 10:56:06,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:56:06,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:56:06,902 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:56:06,902 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 10:56:06,907 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue [152] ULTIMATE.startENTRY-->L34: Formula: (and (= 0 v_ULTIMATE.start_main_~new~0_9) (= 0 v_ULTIMATE.start_main_~old~0_7) (= 0 v_~LOCK~0_17)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~new~0=v_ULTIMATE.start_main_~new~0_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_~old~0=v_ULTIMATE.start_main_~old~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_4|, ~LOCK~0=v_~LOCK~0_17, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_~got_lock~0=v_ULTIMATE.start_main_~got_lock~0_9, ULTIMATE.start_main_#t~post5=|v_ULTIMATE.start_main_#t~post5_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~new~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~old~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ~LOCK~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~got_lock~0, ULTIMATE.start_main_#t~post5] 12#L34true [131] L34-->L35-3: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet0_3|) InVars {ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_3|} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0] 8#L35-3true [2020-07-01 10:56:06,907 INFO L796 eck$LassoCheckResult]: Loop: 8#L35-3true [96] L35-3-->L37: Formula: (= v_ULTIMATE.start_main_~got_lock~0_4 0) InVars {} OutVars{ULTIMATE.start_main_~got_lock~0=v_ULTIMATE.start_main_~got_lock~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~got_lock~0] 4#L37true [88] L37-->L37-2: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 15#L37-2true [114] L37-2-->L35-1: Formula: (= 0 v_ULTIMATE.start_main_~got_lock~0_8) InVars {ULTIMATE.start_main_~got_lock~0=v_ULTIMATE.start_main_~got_lock~0_8} OutVars{ULTIMATE.start_main_~got_lock~0=v_ULTIMATE.start_main_~got_lock~0_8} AuxVars[] AssignedVars[] 13#L35-1true [148] L35-1-->L35-3: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet1_5|) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1] 8#L35-3true [2020-07-01 10:56:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:56:06,914 INFO L82 PathProgramCache]: Analyzing trace with hash 5804, now seen corresponding path program 1 times [2020-07-01 10:56:06,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:56:06,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309965060] [2020-07-01 10:56:06,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:56:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:56:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:56:06,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:56:06,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:56:06,996 INFO L82 PathProgramCache]: Analyzing trace with hash 3871707, now seen corresponding path program 1 times [2020-07-01 10:56:06,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:56:06,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959917627] [2020-07-01 10:56:06,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:56:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:56:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:56:07,005 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:56:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:56:07,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1068096774, now seen corresponding path program 1 times [2020-07-01 10:56:07,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:56:07,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815473184] [2020-07-01 10:56:07,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:56:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:56:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:56:07,021 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:56:07,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:56:07 BasicIcfg [2020-07-01 10:56:07,109 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:56:07,112 INFO L168 Benchmark]: Toolchain (without parser) took 1163.12 ms. Allocated memory was 649.6 MB in the beginning and 689.4 MB in the end (delta: 39.8 MB). Free memory was 561.6 MB in the beginning and 590.0 MB in the end (delta: -28.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:56:07,112 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 10:56:07,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.67 ms. Allocated memory was 649.6 MB in the beginning and 689.4 MB in the end (delta: 39.8 MB). Free memory was 561.6 MB in the beginning and 651.5 MB in the end (delta: -89.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:56:07,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.42 ms. Allocated memory is still 689.4 MB. Free memory was 651.5 MB in the beginning and 650.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:56:07,114 INFO L168 Benchmark]: Boogie Preprocessor took 22.28 ms. Allocated memory is still 689.4 MB. Free memory was 650.2 MB in the beginning and 648.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:56:07,115 INFO L168 Benchmark]: RCFGBuilder took 277.23 ms. Allocated memory is still 689.4 MB. Free memory was 648.8 MB in the beginning and 631.8 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:56:07,116 INFO L168 Benchmark]: BlockEncodingV2 took 93.83 ms. Allocated memory is still 689.4 MB. Free memory was 631.8 MB in the beginning and 625.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:56:07,116 INFO L168 Benchmark]: TraceAbstraction took 164.33 ms. Allocated memory is still 689.4 MB. Free memory was 625.0 MB in the beginning and 615.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:56:07,117 INFO L168 Benchmark]: BuchiAutomizer took 275.39 ms. Allocated memory is still 689.4 MB. Free memory was 615.5 MB in the beginning and 590.0 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:56:07,121 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 21 locations, 33 edges - StatisticsResult: Encoded RCFG 15 locations, 34 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 288.67 ms. Allocated memory was 649.6 MB in the beginning and 689.4 MB in the end (delta: 39.8 MB). Free memory was 561.6 MB in the beginning and 651.5 MB in the end (delta: -89.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.42 ms. Allocated memory is still 689.4 MB. Free memory was 651.5 MB in the beginning and 650.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 22.28 ms. Allocated memory is still 689.4 MB. Free memory was 650.2 MB in the beginning and 648.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 277.23 ms. Allocated memory is still 689.4 MB. Free memory was 648.8 MB in the beginning and 631.8 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 93.83 ms. Allocated memory is still 689.4 MB. Free memory was 631.8 MB in the beginning and 625.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 164.33 ms. Allocated memory is still 689.4 MB. Free memory was 625.0 MB in the beginning and 615.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 275.39 ms. Allocated memory is still 689.4 MB. Free memory was 615.5 MB in the beginning and 590.0 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 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=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. 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: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 35]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {got_lock=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f921164=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@797d3288=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6015615d=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fadd344=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5e98eea0=0, new=0, old=0, LOCK=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@1fe3c0ae=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 35]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int LOCK; [L32] int got_lock; [L33] int old = 0, new = 0; [L34] COND TRUE __VERIFIER_nondet_int() Loop: [L36] got_lock = 0 [L37] COND FALSE !(__VERIFIER_nondet_int()) [L41] COND FALSE !(\read(got_lock)) [L44] COND TRUE __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 10:56:02.674 ----------------------------------------------- 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_FdE3o3/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:56:07.357 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check