/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:49:22,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:49:22,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:49:22,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:49:22,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:49:22,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:49:22,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:49:22,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:49:22,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:49:22,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:49:22,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:49:22,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:49:22,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:49:22,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:49:22,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:49:22,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:49:22,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:49:22,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:49:22,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:49:22,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:49:22,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:49:22,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:49:22,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:49:22,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:49:22,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:49:22,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:49:22,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:49:22,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:49:22,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:49:22,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:49:22,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:49:22,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:49:22,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:49:22,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:49:22,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:49:22,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:49:22,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:49:22,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:49:22,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:49:22,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:49:22,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:49:22,920 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:49:22,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:49:22,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:49:22,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:49:22,936 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:49:22,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:49:22,936 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:49:22,936 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:49:22,937 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:49:22,937 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:49:22,937 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:49:22,937 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:49:22,937 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:49:22,938 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:49:22,938 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:49:22,938 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:49:22,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:49:22,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:49:22,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:49:22,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:49:22,939 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:49:22,939 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:49:22,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:49:22,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:49:22,939 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:49:22,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:49:22,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:49:22,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:49:22,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:49:22,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:49:23,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:49:23,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:49:23,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:49:23,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:49:23,122 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:49:23,123 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:49:23,188 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_8dSz42/tmp/c2c8ec31f2c840e4b04984bd917da3c1/FLAGeff94ef4c [2020-07-01 10:49:23,524 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:49:23,525 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:49:23,531 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_8dSz42/tmp/c2c8ec31f2c840e4b04984bd917da3c1/FLAGeff94ef4c [2020-07-01 10:49:23,918 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_8dSz42/tmp/c2c8ec31f2c840e4b04984bd917da3c1 [2020-07-01 10:49:23,929 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:49:23,931 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:49:23,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:49:23,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:49:23,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:49:23,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:49:23" (1/1) ... [2020-07-01 10:49:23,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f9752c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:23, skipping insertion in model container [2020-07-01 10:49:23,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:49:23" (1/1) ... [2020-07-01 10:49:23,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:49:23,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:49:24,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:49:24,186 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:49:24,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:49:24,216 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:49:24,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24 WrapperNode [2020-07-01 10:49:24,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:49:24,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:49:24,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:49:24,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:49:24,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:49:24,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:49:24,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:49:24,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:49:24,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:49:24,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:49:24,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:49:24,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:49:24,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (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 10:49:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-01 10:49:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-01 10:49:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:49:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:49:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2020-07-01 10:49:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2020-07-01 10:49:24,509 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:49:24,509 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 10:49:24,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:49:24 BoogieIcfgContainer [2020-07-01 10:49:24,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:49:24,514 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:49:24,514 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:49:24,516 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:49:24,517 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:49:24" (1/1) ... [2020-07-01 10:49:24,530 INFO L313 BlockEncoder]: Initial Icfg 17 locations, 19 edges [2020-07-01 10:49:24,532 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:49:24,532 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:49:24,533 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:49:24,533 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:49:24,535 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:49:24,536 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:49:24,536 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:49:24,549 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:49:24,556 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 10:49:24,562 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 10:49:24,563 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:49:24,573 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 10:49:24,575 INFO L70 RemoveSinkStates]: Removed 6 edges and 6 locations by removing sink states [2020-07-01 10:49:24,577 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:49:24,577 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:49:24,583 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:49:24,583 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:49:24,583 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:49:24,584 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:49:24,584 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:49:24,584 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:49:24,585 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 6 edges [2020-07-01 10:49:24,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:49:24 BasicIcfg [2020-07-01 10:49:24,585 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:49:24,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:49:24,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:49:24,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:49:24,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:49:23" (1/4) ... [2020-07-01 10:49:24,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdad764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:49:24, skipping insertion in model container [2020-07-01 10:49:24,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (2/4) ... [2020-07-01 10:49:24,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdad764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:49:24, skipping insertion in model container [2020-07-01 10:49:24,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:49:24" (3/4) ... [2020-07-01 10:49:24,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdad764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:49:24, skipping insertion in model container [2020-07-01 10:49:24,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:49:24" (4/4) ... [2020-07-01 10:49:24,595 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:49:24,605 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:49:24,612 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:49:24,625 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:49:24,648 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:49:24,648 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:49:24,648 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:49:24,649 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:49:24,649 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:49:24,649 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:49:24,649 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:49:24,649 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:49:24,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-07-01 10:49:24,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:49:24,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-07-01 10:49:24,737 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-07-01 10:49:24,737 INFO L271 CegarLoopResult]: At program point fENTRY(lines 6 11) the Hoare annotation is: true [2020-07-01 10:49:24,737 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:49:24,737 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-01 10:49:24,738 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-01 10:49:24,738 INFO L271 CegarLoopResult]: At program point f2ENTRY(lines 13 18) the Hoare annotation is: true [2020-07-01 10:49:24,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:49:24 BasicIcfg [2020-07-01 10:49:24,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:49:24,742 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:49:24,742 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:49:24,746 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:49:24,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:49:24,747 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:49:23" (1/5) ... [2020-07-01 10:49:24,747 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab3f031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:49:24, skipping insertion in model container [2020-07-01 10:49:24,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:49:24,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:49:24" (2/5) ... [2020-07-01 10:49:24,749 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab3f031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:49:24, skipping insertion in model container [2020-07-01 10:49:24,749 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:49:24,749 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:49:24" (3/5) ... [2020-07-01 10:49:24,749 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab3f031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:49:24, skipping insertion in model container [2020-07-01 10:49:24,749 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:49:24,749 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:49:24" (4/5) ... [2020-07-01 10:49:24,750 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab3f031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:49:24, skipping insertion in model container [2020-07-01 10:49:24,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:49:24,750 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:49:24" (5/5) ... [2020-07-01 10:49:24,752 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:49:24,780 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:49:24,780 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:49:24,780 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:49:24,781 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:49:24,781 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:49:24,781 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:49:24,781 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:49:24,781 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:49:24,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 10:49:24,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:49:24,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:49:24,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:49:24,809 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:49:24,810 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 10:49:24,810 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:49:24,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 10:49:24,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:49:24,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:49:24,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:49:24,811 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:49:24,811 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 10:49:24,816 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [41] ULTIMATE.startENTRY-->L21: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res] 3#L21true [39] L21-->fENTRY: Formula: (= |v_f_#in~nInParam_1| 4) InVars {} OutVars{f_#in~n=|v_f_#in~nInParam_1|} AuxVars[] AssignedVars[f_#in~n]< 5#fENTRYtrue [2020-07-01 10:49:24,817 INFO L796 eck$LassoCheckResult]: Loop: 5#fENTRYtrue [54] fENTRY-->L9: Formula: (and (= |v_f_#in~n_2| (+ v_f_~n_8 1)) (<= 2 v_f_~n_8)) InVars {f_#in~n=|v_f_#in~n_2|} OutVars{f_#in~n=|v_f_#in~n_2|, f_#t~post2=|v_f_#t~post2_3|, f_~n=v_f_~n_8} AuxVars[] AssignedVars[f_#t~post2, f_~n] 6#L9true [30] L9-->f2ENTRY: Formula: (= |v_f2_#in~nInParam_1| v_f_~n_6) InVars {f_~n=v_f_~n_6} OutVars{f2_#in~n=|v_f2_#in~nInParam_1|} AuxVars[] AssignedVars[f2_#in~n]< 7#f2ENTRYtrue [55] f2ENTRY-->L16: Formula: (and (= |v_f2_#in~n_2| (+ v_f2_~n_8 1)) (<= 2 v_f2_~n_8)) InVars {f2_#in~n=|v_f2_#in~n_2|} OutVars{f2_#t~post3=|v_f2_#t~post3_3|, f2_~n=v_f2_~n_8, f2_#in~n=|v_f2_#in~n_2|} AuxVars[] AssignedVars[f2_#t~post3, f2_~n] 8#L16true [38] L16-->fENTRY: Formula: (= |v_f_#in~nInParam_2| v_f2_~n_6) InVars {f2_~n=v_f2_~n_6} OutVars{f_#in~n=|v_f_#in~nInParam_2|} AuxVars[] AssignedVars[f_#in~n]< 5#fENTRYtrue [2020-07-01 10:49:24,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:49:24,823 INFO L82 PathProgramCache]: Analyzing trace with hash 2271, now seen corresponding path program 1 times [2020-07-01 10:49:24,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:49:24,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546394623] [2020-07-01 10:49:24,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:49:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:49:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:49:24,903 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:49:24,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:49:24,905 INFO L82 PathProgramCache]: Analyzing trace with hash 2562808, now seen corresponding path program 1 times [2020-07-01 10:49:24,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:49:24,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398361635] [2020-07-01 10:49:24,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:49:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:49:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:49:24,928 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:49:24,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:49:24,930 INFO L82 PathProgramCache]: Analyzing trace with hash 2098955478, now seen corresponding path program 1 times [2020-07-01 10:49:24,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:49:24,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456396032] [2020-07-01 10:49:24,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:49:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:49:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:49:24,946 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:49:25,081 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:49:25,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:49:25,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:49:25,083 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:49:25,083 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:49:25,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:49:25,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:49:25,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:49:25,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:49:25,084 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:49:25,084 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:49:25,099 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 10:49:25,107 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 10:49:25,116 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 10:49:25,124 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 10:49:25,128 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 10:49:25,134 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 10:49:25,195 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:49:25,196 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:49:25,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:49:25,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:49:25,213 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:49:25,214 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~post2=0} Honda state: {f_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:49:25,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:49:25,249 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:49:25,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:49:25,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:49:25,363 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:49:25,366 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:49:25,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:49:25,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:49:25,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:49:25,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:49:25,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:49:25,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:49:25,367 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:49:25,367 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:49:25,367 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:49:25,367 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:49:25,368 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 10:49:25,372 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 10:49:25,374 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 10:49:25,382 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 10:49:25,385 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 10:49:25,388 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 10:49:25,433 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:49:25,439 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 10:49:25,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:49:25,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:49:25,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:49:25,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:49:25,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:49:25,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:49:25,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:49:25,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:49:25,454 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 10:49:25,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:49:25,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:49:25,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:49:25,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:49:25,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:49:25,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:49:25,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:49:25,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:49:25,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 10:49:25,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:49:25,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:49:25,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:49:25,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:49:25,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:49:25,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:49:25,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:49:25,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:49:25,535 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:49:25,540 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:49:25,541 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 10:49:25,547 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:49:25,547 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:49:25,547 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:49:25,548 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n) = 1*f_#in~n Supporting invariants [] [2020-07-01 10:49:25,582 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:49:25,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:49:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:49:25,640 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:49:25,642 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:49:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:49:25,672 INFO L264 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-01 10:49:25,673 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:49:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:49:25,746 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 10:49:25,751 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-07-01 10:49:25,752 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states. Second operand 5 states. [2020-07-01 10:49:25,859 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states.. Second operand 5 states. Result 12 states and 13 transitions. Complement of second has 11 states. [2020-07-01 10:49:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 10:49:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 10:49:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2020-07-01 10:49:25,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 10:49:25,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:49:25,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 10:49:25,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:49:25,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-01 10:49:25,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:49:25,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2020-07-01 10:49:25,902 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:49:25,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-07-01 10:49:25,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:49:25,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:49:25,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:49:25,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:49:25,908 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:49:25,908 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:49:25,908 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:49:25,908 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:49:25,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:49:25,909 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:49:25,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:49:25,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:49:25 BasicIcfg [2020-07-01 10:49:25,915 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:49:25,918 INFO L168 Benchmark]: Toolchain (without parser) took 1986.15 ms. Allocated memory was 514.9 MB in the beginning and 587.2 MB in the end (delta: 72.4 MB). Free memory was 438.4 MB in the beginning and 542.4 MB in the end (delta: -103.9 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:49:25,919 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:49:25,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.40 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 437.8 MB in the beginning and 528.5 MB in the end (delta: -90.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:49:25,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.07 ms. Allocated memory is still 561.0 MB. Free memory was 528.5 MB in the beginning and 527.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:49:25,921 INFO L168 Benchmark]: Boogie Preprocessor took 16.81 ms. Allocated memory is still 561.0 MB. Free memory was 527.1 MB in the beginning and 525.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:49:25,921 INFO L168 Benchmark]: RCFGBuilder took 245.26 ms. Allocated memory is still 561.0 MB. Free memory was 525.8 MB in the beginning and 512.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:49:25,922 INFO L168 Benchmark]: BlockEncodingV2 took 71.39 ms. Allocated memory is still 561.0 MB. Free memory was 512.5 MB in the beginning and 507.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:49:25,922 INFO L168 Benchmark]: TraceAbstraction took 154.47 ms. Allocated memory is still 561.0 MB. Free memory was 506.4 MB in the beginning and 496.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:49:25,923 INFO L168 Benchmark]: BuchiAutomizer took 1173.24 ms. Allocated memory was 561.0 MB in the beginning and 587.2 MB in the end (delta: 26.2 MB). Free memory was 496.8 MB in the beginning and 542.4 MB in the end (delta: -45.6 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:49:25,927 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 17 locations, 19 edges - StatisticsResult: Encoded RCFG 6 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 285.40 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 437.8 MB in the beginning and 528.5 MB in the end (delta: -90.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.07 ms. Allocated memory is still 561.0 MB. Free memory was 528.5 MB in the beginning and 527.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.81 ms. Allocated memory is still 561.0 MB. Free memory was 527.1 MB in the beginning and 525.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 245.26 ms. Allocated memory is still 561.0 MB. Free memory was 525.8 MB in the beginning and 512.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.39 ms. Allocated memory is still 561.0 MB. Free memory was 512.5 MB in the beginning and 507.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.47 ms. Allocated memory is still 561.0 MB. Free memory was 506.4 MB in the beginning and 496.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1173.24 ms. Allocated memory was 561.0 MB in the beginning and 587.2 MB in the end (delta: 26.2 MB). Free memory was 496.8 MB in the beginning and 542.4 MB in the end (delta: -45.6 MB). There was no memory consumed. 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 6 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=6occurred 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, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function \old(n) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 8 SDslu, 3 SDs, 0 SdLazy, 13 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 10:49:20.680 ----------------------------------------------- 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_8dSz42/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:49:26.162 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check