/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:00:06,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:00:06,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:00:06,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:00:06,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:00:06,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:00:06,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:00:06,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:00:06,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:00:06,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:00:06,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:00:06,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:00:06,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:00:06,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:00:06,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:00:06,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:00:06,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:00:06,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:00:06,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:00:06,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:00:06,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:00:06,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:00:06,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:00:06,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:00:06,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:00:06,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:00:06,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:00:06,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:00:06,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:00:06,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:00:06,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:00:06,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:00:06,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:00:06,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:00:06,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:00:06,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:00:06,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:00:06,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:00:06,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:00:06,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:00:06,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:00:06,261 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:00:06,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:00:06,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:00:06,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:00:06,276 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:00:06,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:00:06,277 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:00:06,277 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:00:06,277 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:00:06,277 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:00:06,277 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:00:06,278 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:00:06,278 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:00:06,278 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:00:06,278 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:00:06,278 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:06,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:00:06,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:00:06,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:00:06,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:00:06,279 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:00:06,279 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:00:06,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:00:06,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:00:06,280 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:00:06,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:00:06,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:00:06,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:00:06,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:00:06,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:00:06,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:00:06,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:00:06,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:00:06,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:00:06,462 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:00:06,463 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:00:06,533 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_eYClGh/tmp/5560a59535ad4e9aae3a2b74f7f7ec96/FLAG2a3cc0563 [2020-07-01 12:00:06,856 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:00:06,857 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:00:06,863 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_eYClGh/tmp/5560a59535ad4e9aae3a2b74f7f7ec96/FLAG2a3cc0563 [2020-07-01 12:00:07,287 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_eYClGh/tmp/5560a59535ad4e9aae3a2b74f7f7ec96 [2020-07-01 12:00:07,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:00:07,300 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:00:07,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:00:07,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:00:07,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:00:07,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee29445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07, skipping insertion in model container [2020-07-01 12:00:07,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:00:07,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:00:07,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:00:07,561 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:00:07,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:00:07,592 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:00:07,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07 WrapperNode [2020-07-01 12:00:07,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:00:07,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:00:07,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:00:07,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:00:07,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:00:07,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:00:07,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:00:07,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:00:07,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:00:07,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:00:07,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:00:07,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:00:07,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:00:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:00:07,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:00:07,889 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:00:07,890 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 12:00:07,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:00:07 BoogieIcfgContainer [2020-07-01 12:00:07,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:00:07,894 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:00:07,894 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:00:07,896 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:00:07,897 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:00:07" (1/1) ... [2020-07-01 12:00:07,909 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-07-01 12:00:07,911 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:00:07,911 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:00:07,912 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:00:07,912 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:00:07,914 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:00:07,915 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:00:07,915 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:00:07,929 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:00:07,936 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:00:07,942 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:00:07,944 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:00:07,960 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2020-07-01 12:00:07,963 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:00:07,964 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:00:07,964 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:00:07,964 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:00:07,965 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:00:07,965 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 12:00:07,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:00:07 BasicIcfg [2020-07-01 12:00:07,966 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:00:07,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:00:07,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:00:07,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:00:07,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:00:07" (1/4) ... [2020-07-01 12:00:07,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed862dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:00:07, skipping insertion in model container [2020-07-01 12:00:07,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (2/4) ... [2020-07-01 12:00:07,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed862dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:00:07, skipping insertion in model container [2020-07-01 12:00:07,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:00:07" (3/4) ... [2020-07-01 12:00:07,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed862dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:00:07, skipping insertion in model container [2020-07-01 12:00:07,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:00:07" (4/4) ... [2020-07-01 12:00:07,976 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:00:07,986 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:00:07,994 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:00:08,008 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:00:08,031 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:00:08,031 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:00:08,031 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:00:08,031 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:00:08,031 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:00:08,032 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:00:08,032 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:00:08,032 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:00:08,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 12:00:08,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:00:08,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 12:00:08,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:00:08,107 INFO L271 CegarLoopResult]: At program point L8-2(lines 8 11) the Hoare annotation is: true [2020-07-01 12:00:08,108 INFO L271 CegarLoopResult]: At program point L6-2(lines 6 13) the Hoare annotation is: true [2020-07-01 12:00:08,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:00:08 BasicIcfg [2020-07-01 12:00:08,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:00:08,117 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:00:08,117 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:00:08,120 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:00:08,121 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:08,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:00:07" (1/5) ... [2020-07-01 12:00:08,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bc2df6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:00:08, skipping insertion in model container [2020-07-01 12:00:08,122 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:08,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:07" (2/5) ... [2020-07-01 12:00:08,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bc2df6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:00:08, skipping insertion in model container [2020-07-01 12:00:08,122 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:08,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:00:07" (3/5) ... [2020-07-01 12:00:08,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bc2df6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:00:08, skipping insertion in model container [2020-07-01 12:00:08,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:08,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:00:07" (4/5) ... [2020-07-01 12:00:08,124 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bc2df6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:00:08, skipping insertion in model container [2020-07-01 12:00:08,124 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:08,124 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:00:08" (5/5) ... [2020-07-01 12:00:08,125 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:00:08,155 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:00:08,156 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:00:08,156 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:00:08,156 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:00:08,156 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:00:08,156 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:00:08,156 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:00:08,156 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:00:08,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:00:08,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:00:08,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:00:08,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:00:08,184 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:00:08,184 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:00:08,184 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:00:08,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:00:08,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:00:08,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:00:08,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:00:08,186 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:00:08,186 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:00:08,191 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~i_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~j_1 |v_ULTIMATE.start_test_fun_#in~j_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= v_ULTIMATE.start_test_fun_~i_1 |v_ULTIMATE.start_test_fun_#in~i_1|) (= |v_ULTIMATE.start_test_fun_#in~j_1| |v_ULTIMATE.start_main_#t~nondet1_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~j=|v_ULTIMATE.start_test_fun_#in~j_1|, ULTIMATE.start_test_fun_#in~i=|v_ULTIMATE.start_test_fun_#in~i_1|, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_1} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~i, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~j, ULTIMATE.start_test_fun_#in~i, ULTIMATE.start_test_fun_~j] 5#L6-2true [2020-07-01 12:00:08,191 INFO L796 eck$LassoCheckResult]: Loop: 5#L6-2true [44] L6-2-->L8-2: Formula: (and (= v_ULTIMATE.start_test_fun_~j_6 0) (<= 0 v_ULTIMATE.start_test_fun_~i_8)) InVars {ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_8} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_8, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_6} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~j] 4#L8-2true [48] L8-2-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~i_10 (+ v_ULTIMATE.start_test_fun_~i_11 (- 1))) (< v_ULTIMATE.start_test_fun_~i_11 (+ v_ULTIMATE.start_test_fun_~j_7 1))) InVars {ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_11, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_7} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_10, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_7} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~i] 5#L6-2true [2020-07-01 12:00:08,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:08,198 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 12:00:08,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:08,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55678285] [2020-07-01 12:00:08,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,281 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:08,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:08,283 INFO L82 PathProgramCache]: Analyzing trace with hash 2373, now seen corresponding path program 1 times [2020-07-01 12:00:08,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:08,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887880653] [2020-07-01 12:00:08,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,298 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:08,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:08,300 INFO L82 PathProgramCache]: Analyzing trace with hash 63877, now seen corresponding path program 1 times [2020-07-01 12:00:08,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:08,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199298027] [2020-07-01 12:00:08,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,314 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:08,362 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:00:08,363 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:00:08,363 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:00:08,363 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:00:08,363 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:00:08,363 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:08,363 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:00:08,364 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:00:08,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:00:08,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:00:08,364 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:00:08,382 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 12:00:08,462 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:00:08,463 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:08,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:00:08,471 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:08,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:00:08,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:00:08,554 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:00:08,556 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:00:08,556 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:00:08,556 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:00:08,556 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:00:08,556 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:00:08,557 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:08,557 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:00:08,557 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:00:08,557 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:00:08,557 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:00:08,557 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:00:08,559 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 12:00:08,626 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:00:08,632 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:08,639 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 12:00:08,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:00:08,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:00:08,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:00:08,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:00:08,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:00:08,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:00:08,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:00:08,652 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:00:08,660 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:00:08,660 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/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 12:00:08,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:00:08,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:00:08,670 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:00:08,671 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~i) = 2*ULTIMATE.start_test_fun_~i + 1 Supporting invariants [] [2020-07-01 12:00:08,705 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:00:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:08,746 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:00:08,747 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:08,760 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:00:08,761 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:08,776 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 12:00:08,802 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:00:08,808 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 2 loop predicates [2020-07-01 12:00:08,809 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 12:00:08,837 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-07-01 12:00:08,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:00:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:00:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 12:00:08,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:00:08,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:08,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:00:08,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:08,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:00:08,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:08,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 12:00:08,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:00:08,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 12:00:08,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:00:08,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 12:00:08,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 12:00:08,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:00:08,856 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 12:00:08,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 12:00:08,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 12:00:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 12:00:08,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 12:00:08,884 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 12:00:08,884 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 12:00:08,884 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:00:08,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 12:00:08,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:00:08,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:00:08,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:00:08,886 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:00:08,886 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:00:08,886 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~i_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~j_1 |v_ULTIMATE.start_test_fun_#in~j_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= v_ULTIMATE.start_test_fun_~i_1 |v_ULTIMATE.start_test_fun_#in~i_1|) (= |v_ULTIMATE.start_test_fun_#in~j_1| |v_ULTIMATE.start_main_#t~nondet1_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~j=|v_ULTIMATE.start_test_fun_#in~j_1|, ULTIMATE.start_test_fun_#in~i=|v_ULTIMATE.start_test_fun_#in~i_1|, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_1} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~i, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~j, ULTIMATE.start_test_fun_#in~i, ULTIMATE.start_test_fun_~j] 43#L6-2 [44] L6-2-->L8-2: Formula: (and (= v_ULTIMATE.start_test_fun_~j_6 0) (<= 0 v_ULTIMATE.start_test_fun_~i_8)) InVars {ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_8} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_8, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_6} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~j] 44#L8-2 [2020-07-01 12:00:08,886 INFO L796 eck$LassoCheckResult]: Loop: 44#L8-2 [37] L8-2-->L8-2: Formula: (let ((.cse0 (+ v_ULTIMATE.start_test_fun_~j_5 1))) (and (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (= v_ULTIMATE.start_test_fun_~j_4 .cse0) (<= .cse0 v_ULTIMATE.start_test_fun_~i_4))) InVars {ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_5} OutVars{ULTIMATE.start_test_fun_~i=v_ULTIMATE.start_test_fun_~i_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3, ULTIMATE.start_test_fun_~j=v_ULTIMATE.start_test_fun_~j_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_~j] 44#L8-2 [2020-07-01 12:00:08,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:08,887 INFO L82 PathProgramCache]: Analyzing trace with hash 2059, now seen corresponding path program 1 times [2020-07-01 12:00:08,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:08,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150981294] [2020-07-01 12:00:08,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,896 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:08,897 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-07-01 12:00:08,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:08,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668890846] [2020-07-01 12:00:08,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:08,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:08,905 INFO L82 PathProgramCache]: Analyzing trace with hash 63866, now seen corresponding path program 1 times [2020-07-01 12:00:08,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:08,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066623975] [2020-07-01 12:00:08,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:08,917 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:08,937 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:00:08,937 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:00:08,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:00:08,938 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:00:08,938 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:00:08,938 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:08,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:00:08,938 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:00:08,938 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:00:08,938 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:00:08,938 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:00:08,940 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 12:00:08,950 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 12:00:09,000 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:00:09,000 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:09,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:00:09,009 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:09,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:00:09,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:00:09,069 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:00:09,070 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=6}, {ULTIMATE.start_test_fun_~c~0=-5}, {ULTIMATE.start_test_fun_~c~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:09,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:00:09,104 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:09,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:00:09,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:00:09,321 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:00:09,323 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:00:09,324 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:00:09,324 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:00:09,324 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:00:09,324 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:00:09,324 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:09,324 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:00:09,324 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:00:09,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:00:09,325 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:00:09,325 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:00:09,326 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 12:00:09,330 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 12:00:09,367 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:00:09,367 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:09,371 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 12:00:09,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:00:09,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:00:09,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:00:09,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:00:09,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:00:09,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:00:09,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:00:09,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:09,411 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 12:00:09,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:00:09,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:00:09,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:00:09,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:00:09,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:00:09,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:00:09,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:00:09,418 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:00:09,423 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 12:00:09,423 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-01 12:00:09,442 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:00:09,442 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:00:09,443 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:00:09,443 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~i, ULTIMATE.start_test_fun_~j) = 1*ULTIMATE.start_test_fun_~i - 1*ULTIMATE.start_test_fun_~j Supporting invariants [] Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:09,473 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:00:09,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:09,504 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:00:09,504 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:09,509 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:00:09,509 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:09,509 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 12:00:09,509 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:00:09,510 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 1 loop predicates [2020-07-01 12:00:09,510 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 12:00:09,522 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-07-01 12:00:09,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:00:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:00:09,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 12:00:09,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:00:09,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:09,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:00:09,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:09,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 12:00:09,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:09,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 12:00:09,527 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:00:09,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2020-07-01 12:00:09,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:00:09,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:00:09,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:00:09,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:00:09,528 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:00:09,528 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:00:09,528 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:00:09,528 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:00:09,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:00:09,528 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:00:09,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:00:09,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:00:09 BasicIcfg [2020-07-01 12:00:09,535 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:00:09,537 INFO L168 Benchmark]: Toolchain (without parser) took 2236.63 ms. Allocated memory was 514.9 MB in the beginning and 589.3 MB in the end (delta: 74.4 MB). Free memory was 436.2 MB in the beginning and 534.9 MB in the end (delta: -98.6 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:00:09,538 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 455.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:00:09,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.87 ms. Allocated memory was 514.9 MB in the beginning and 562.6 MB in the end (delta: 47.7 MB). Free memory was 435.6 MB in the beginning and 532.4 MB in the end (delta: -96.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:09,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 562.6 MB. Free memory was 532.4 MB in the beginning and 530.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:09,540 INFO L168 Benchmark]: Boogie Preprocessor took 21.17 ms. Allocated memory is still 562.6 MB. Free memory was 530.5 MB in the beginning and 529.7 MB in the end (delta: 852.3 kB). Peak memory consumption was 852.3 kB. Max. memory is 50.3 GB. [2020-07-01 12:00:09,540 INFO L168 Benchmark]: RCFGBuilder took 243.24 ms. Allocated memory is still 562.6 MB. Free memory was 528.9 MB in the beginning and 517.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:09,541 INFO L168 Benchmark]: BlockEncodingV2 took 72.00 ms. Allocated memory is still 562.6 MB. Free memory was 517.6 MB in the beginning and 511.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:09,542 INFO L168 Benchmark]: TraceAbstraction took 149.14 ms. Allocated memory is still 562.6 MB. Free memory was 511.0 MB in the beginning and 502.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:09,542 INFO L168 Benchmark]: BuchiAutomizer took 1418.00 ms. Allocated memory was 562.6 MB in the beginning and 589.3 MB in the end (delta: 26.7 MB). Free memory was 502.7 MB in the beginning and 534.9 MB in the end (delta: -32.1 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:00:09,546 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 3 locations, 4 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 455.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.87 ms. Allocated memory was 514.9 MB in the beginning and 562.6 MB in the end (delta: 47.7 MB). Free memory was 435.6 MB in the beginning and 532.4 MB in the end (delta: -96.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 562.6 MB. Free memory was 532.4 MB in the beginning and 530.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 21.17 ms. Allocated memory is still 562.6 MB. Free memory was 530.5 MB in the beginning and 529.7 MB in the end (delta: 852.3 kB). Peak memory consumption was 852.3 kB. Max. memory is 50.3 GB. * RCFGBuilder took 243.24 ms. Allocated memory is still 562.6 MB. Free memory was 528.9 MB in the beginning and 517.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.00 ms. Allocated memory is still 562.6 MB. Free memory was 517.6 MB in the beginning and 511.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 149.14 ms. Allocated memory is still 562.6 MB. Free memory was 511.0 MB in the beginning and 502.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1418.00 ms. Allocated memory was 562.6 MB in the beginning and 589.3 MB in the end (delta: 26.7 MB). Free memory was 502.7 MB in the beginning and 534.9 MB in the end (delta: -32.1 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. - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * i + 1 and consists of 3 locations. One nondeterministic module has affine ranking function i + -1 * j and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 11 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp85 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp94 dnf100 smp100 tf110 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:00:04.011 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_eYClGh/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:00:09.982 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check