/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 12:09:06,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:09:06,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:09:06,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:09:06,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:09:06,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:09:06,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:09:06,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:09:06,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:09:06,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:09:06,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:09:06,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:09:06,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:09:06,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:09:06,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:09:06,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:09:06,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:09:06,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:09:06,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:09:06,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:09:06,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:09:06,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:09:06,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:09:06,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:09:06,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:09:06,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:09:06,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:09:06,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:09:06,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:09:06,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:09:06,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:09:06,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:09:06,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:09:06,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:09:06,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:09:06,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:09:06,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:09:06,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:09:06,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:09:06,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:09:06,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:09:06,959 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:09:06,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:09:06,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:09:06,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:09:06,975 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:09:06,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:09:06,975 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:09:06,975 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:09:06,975 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:09:06,975 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:09:06,976 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:09:06,976 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:09:06,976 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:09:06,976 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:09:06,976 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:09:06,976 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:06,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:09:06,977 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:09:06,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:09:06,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:09:06,977 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:09:06,978 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:09:06,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:09:06,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:09:06,978 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:09:06,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:09:06,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:09:06,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:09:06,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:09:06,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:09:07,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:09:07,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:09:07,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:09:07,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:09:07,165 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:09:07,166 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:09:07,236 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_YULFud/tmp/8efce9d5920149e19971b183a051cd5b/FLAG8cc01c705 [2020-07-01 12:09:07,561 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:09:07,561 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:09:07,568 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_YULFud/tmp/8efce9d5920149e19971b183a051cd5b/FLAG8cc01c705 [2020-07-01 12:09:07,973 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_YULFud/tmp/8efce9d5920149e19971b183a051cd5b [2020-07-01 12:09:07,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:09:07,985 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:09:07,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:09:07,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:09:07,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:09:07,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:09:07" (1/1) ... [2020-07-01 12:09:07,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb303b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:07, skipping insertion in model container [2020-07-01 12:09:07,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:09:07" (1/1) ... [2020-07-01 12:09:08,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:09:08,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:09:08,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:09:08,247 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:09:08,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:09:08,277 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:09:08,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08 WrapperNode [2020-07-01 12:09:08,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:09:08,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:09:08,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:09:08,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:09:08,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:09:08,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:09:08,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:09:08,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:09:08,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:09:08,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:09:08,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:09:08,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:09:08,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (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 12:09:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:09:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:09:08,566 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:09:08,566 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:09:08,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:09:08 BoogieIcfgContainer [2020-07-01 12:09:08,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:09:08,570 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:09:08,571 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:09:08,573 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:09:08,574 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:09:08" (1/1) ... [2020-07-01 12:09:08,585 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 12:09:08,587 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:09:08,587 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:09:08,588 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:09:08,588 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:09:08,590 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:09:08,590 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:09:08,591 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:09:08,604 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:09:08,611 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:09:08,616 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:09:08,618 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:09:08,630 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 12:09:08,632 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:09:08,634 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:09:08,634 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:09:08,634 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:09:08,634 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:09:08,635 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-07-01 12:09:08,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:09:08 BasicIcfg [2020-07-01 12:09:08,635 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:09:08,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:09:08,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:09:08,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:09:08,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:09:07" (1/4) ... [2020-07-01 12:09:08,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e1591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:09:08, skipping insertion in model container [2020-07-01 12:09:08,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (2/4) ... [2020-07-01 12:09:08,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e1591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:09:08, skipping insertion in model container [2020-07-01 12:09:08,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:09:08" (3/4) ... [2020-07-01 12:09:08,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e1591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:09:08, skipping insertion in model container [2020-07-01 12:09:08,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:09:08" (4/4) ... [2020-07-01 12:09:08,644 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:09:08,655 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:09:08,663 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:09:08,677 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:09:08,699 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:09:08,700 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:09:08,700 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:09:08,700 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:09:08,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:09:08,700 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:09:08,701 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:09:08,701 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:09:08,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 12:09:08,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:09:08,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 12:09:08,775 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:09:08,775 INFO L268 CegarLoopResult]: For program point L13(lines 13 17) no Hoare annotation was computed. [2020-07-01 12:09:08,775 INFO L268 CegarLoopResult]: For program point L13-2(lines 12 22) no Hoare annotation was computed. [2020-07-01 12:09:08,776 INFO L271 CegarLoopResult]: At program point L12-2(lines 12 22) the Hoare annotation is: true [2020-07-01 12:09:08,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:09:08 BasicIcfg [2020-07-01 12:09:08,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:09:08,785 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:09:08,785 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:09:08,789 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:09:08,789 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:09:08,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:09:07" (1/5) ... [2020-07-01 12:09:08,790 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24ea4955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:09:08, skipping insertion in model container [2020-07-01 12:09:08,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:09:08,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:09:08" (2/5) ... [2020-07-01 12:09:08,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24ea4955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:09:08, skipping insertion in model container [2020-07-01 12:09:08,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:09:08,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:09:08" (3/5) ... [2020-07-01 12:09:08,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24ea4955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:09:08, skipping insertion in model container [2020-07-01 12:09:08,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:09:08,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:09:08" (4/5) ... [2020-07-01 12:09:08,793 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24ea4955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:09:08, skipping insertion in model container [2020-07-01 12:09:08,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:09:08,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:09:08" (5/5) ... [2020-07-01 12:09:08,794 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:09:08,822 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:09:08,822 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:09:08,822 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:09:08,822 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:09:08,822 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:09:08,823 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:09:08,823 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:09:08,823 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:09:08,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 12:09:08,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:09:08,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:09:08,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:09:08,849 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:09:08,849 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:09:08,849 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:09:08,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 12:09:08,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:09:08,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:09:08,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:09:08,850 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:09:08,850 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:09:08,855 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 0) (= v_ULTIMATE.start_main_~y~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_1|, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~x~0] 3#L12-2true [2020-07-01 12:09:08,856 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true [31] L12-2-->L13: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 6#L13true [36] L13-->L13-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_7 1) v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~x~0_6 50)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post0] 5#L13-2true [41] L13-2-->L12-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_5 1) v_ULTIMATE.start_main_~x~0_4) (>= v_ULTIMATE.start_main_~y~0_5 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 3#L12-2true [2020-07-01 12:09:08,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:09:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-07-01 12:09:08,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:09:08,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124574088] [2020-07-01 12:09:08,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:09:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:08,939 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:09:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:09:08,940 INFO L82 PathProgramCache]: Analyzing trace with hash 60739, now seen corresponding path program 1 times [2020-07-01 12:09:08,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:09:08,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607459754] [2020-07-01 12:09:08,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:09:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:08,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:09:08,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:09:08,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1907781, now seen corresponding path program 1 times [2020-07-01 12:09:08,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:09:08,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370713388] [2020-07-01 12:09:08,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:09:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:08,972 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:09:09,021 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:09:09,021 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:09:09,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:09:09,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:09:09,022 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:09:09,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:09,022 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:09:09,022 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:09:09,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:09:09,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:09:09,023 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:09:09,042 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 12:09:09,058 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 12:09:09,062 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 12:09:09,073 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 12:09:09,164 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:09:09,164 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 12:09:09,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:09:09,172 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:09,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:09:09,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:09:09,250 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:09:09,253 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:09:09,253 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:09:09,253 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:09:09,253 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:09:09,253 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:09:09,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:09:09,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:09:09,254 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:09:09,254 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:09:09,254 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:09:09,254 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:09:09,256 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 12:09:09,266 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 12:09:09,273 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 12:09:09,277 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 12:09:09,342 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:09:09,348 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/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 12:09:09,355 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 12:09:09,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:09:09,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:09:09,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:09:09,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:09:09,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:09:09,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:09:09,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:09:09,366 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:09:09,374 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:09:09,374 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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 12:09:09,383 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:09:09,384 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:09:09,385 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:09:09,385 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 101 Supporting invariants [] [2020-07-01 12:09:09,419 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:09:09,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:09:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:09:09,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:09:09,462 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:09:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:09:09,474 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:09:09,474 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:09:09,490 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 12:09:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:09:09,521 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:09:09,521 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:09:09,542 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:09:09,548 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 3 loop predicates [2020-07-01 12:09:09,549 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-07-01 12:09:09,647 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 21 states and 27 transitions. Complement of second has 10 states. [2020-07-01 12:09:09,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-07-01 12:09:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:09:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 23 transitions. [2020-07-01 12:09:09,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 12:09:09,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:09:09,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 12:09:09,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:09:09,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 12:09:09,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:09:09,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2020-07-01 12:09:09,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:09:09,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 19 transitions. [2020-07-01 12:09:09,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:09:09,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 12:09:09,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2020-07-01 12:09:09,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:09:09,671 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-07-01 12:09:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2020-07-01 12:09:09,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2020-07-01 12:09:09,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 12:09:09,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-07-01 12:09:09,700 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-07-01 12:09:09,700 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-07-01 12:09:09,700 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:09:09,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2020-07-01 12:09:09,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:09:09,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:09:09,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:09:09,702 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-07-01 12:09:09,702 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:09:09,702 INFO L794 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 0) (= v_ULTIMATE.start_main_~y~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_1|, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~x~0] 80#L12-2 [31] L12-2-->L13: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 81#L13 [36] L13-->L13-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_7 1) v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~x~0_6 50)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post0] 89#L13-2 [41] L13-2-->L12-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_5 1) v_ULTIMATE.start_main_~x~0_4) (>= v_ULTIMATE.start_main_~y~0_5 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 90#L12-2 [31] L12-2-->L13: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 88#L13 [2020-07-01 12:09:09,703 INFO L796 eck$LassoCheckResult]: Loop: 88#L13 [40] L13-->L13-2: Formula: (and (= (+ v_ULTIMATE.start_main_~y~0_8 1) v_ULTIMATE.start_main_~y~0_9) (> v_ULTIMATE.start_main_~x~0_7 50)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post1] 85#L13-2 [41] L13-2-->L12-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_5 1) v_ULTIMATE.start_main_~x~0_4) (>= v_ULTIMATE.start_main_~y~0_5 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 86#L12-2 [31] L12-2-->L13: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 88#L13 [2020-07-01 12:09:09,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:09:09,703 INFO L82 PathProgramCache]: Analyzing trace with hash 59141242, now seen corresponding path program 2 times [2020-07-01 12:09:09,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:09:09,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486025728] [2020-07-01 12:09:09,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:09:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:09,714 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:09:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:09:09,715 INFO L82 PathProgramCache]: Analyzing trace with hash 69533, now seen corresponding path program 1 times [2020-07-01 12:09:09,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:09:09,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429677105] [2020-07-01 12:09:09,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:09:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:09:09,723 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:09:09,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:09:09,724 INFO L82 PathProgramCache]: Analyzing trace with hash 940188804, now seen corresponding path program 1 times [2020-07-01 12:09:09,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:09:09,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158615251] [2020-07-01 12:09:09,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:09:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:09:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:09:09,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158615251] [2020-07-01 12:09:09,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603527474] [2020-07-01 12:09:09,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:09:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:09:09,789 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 12:09:09,790 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:09:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:09:09,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 12:09:09,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-07-01 12:09:09,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043823830] [2020-07-01 12:09:09,818 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:09:09,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:09:09,818 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:09:09,818 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:09:09,818 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:09:09,818 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:09,819 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:09:09,819 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:09:09,819 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:09:09,819 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:09:09,819 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:09:09,820 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 12:09:09,824 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 12:09:09,830 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 12:09:09,832 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 12:09:09,878 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:09:09,878 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:09,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:09:09,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:09:09,890 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:09:09,891 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:09,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:09:09,925 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:09,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:09:09,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:09:09,975 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:09:09,975 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=51} Honda state: {ULTIMATE.start_main_~x~0=51} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 0, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:10,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:09:10,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:09:10,013 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:09:10,013 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:10,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:09:10,047 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:09:10,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:09:10,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:09:10,167 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:09:10,169 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:09:10,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:09:10,169 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:09:10,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:09:10,170 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:09:10,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:09:10,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:09:10,171 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:09:10,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:09:10,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:09:10,171 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:09:10,172 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 12:09:10,176 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 12:09:10,184 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 12:09:10,187 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 12:09:10,237 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:09:10,237 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:09:10,240 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 12:09:10,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:09:10,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:09:10,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:09:10,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:09:10,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:09:10,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:09:10,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:09:10,246 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 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:09:10,281 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 12:09:10,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:09:10,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:09:10,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:09:10,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:09:10,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:09:10,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:09:10,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:09:10,288 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 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:09:10,327 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 12:09:10,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:09:10,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:09:10,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:09:10,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:09:10,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:09:10,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:09:10,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:09:10,334 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:09:10,368 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 12:09:10,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:09:10,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:09:10,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:09:10,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:09:10,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:09:10,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:09:10,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:09:10,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:09:10,378 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:09:10,378 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:09:10,383 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:09:10,383 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:09:10,384 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:09:10,384 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 12:09:10,416 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:09:10,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:09:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:09:10,435 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:09:10,435 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:09:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:09:10,441 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:09:10,442 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:09:10,468 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 12:09:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:09:10,483 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:09:10,483 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:09:10,486 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:09:10,486 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 3 loop predicates [2020-07-01 12:09:10,486 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-07-01 12:09:10,567 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 35 states and 44 transitions. Complement of second has 16 states. [2020-07-01 12:09:10,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-07-01 12:09:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:09:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2020-07-01 12:09:10,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 12:09:10,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:09:10,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2020-07-01 12:09:10,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:09:10,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-01 12:09:10,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:09:10,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 44 transitions. [2020-07-01 12:09:10,574 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:09:10,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2020-07-01 12:09:10,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:09:10,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:09:10,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:09:10,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:09:10,575 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:09:10,575 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:09:10,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:09:10,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 12:09:10,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-01 12:09:10,578 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2020-07-01 12:09:10,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:09:10,582 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 12:09:10,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 12:09:10,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 12:09:10,583 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:09:10,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 12:09:10,583 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:09:10,583 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:09:10,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:09:10,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:09:10,584 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:09:10,584 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:09:10,584 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:09:10,584 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:09:10,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:09:10,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:09:10,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:09:10,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:09:10 BasicIcfg [2020-07-01 12:09:10,591 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:09:10,594 INFO L168 Benchmark]: Toolchain (without parser) took 2607.36 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 561.4 MB in the beginning and 421.9 MB in the end (delta: 139.6 MB). Peak memory consumption was 175.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:09:10,594 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:09:10,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.13 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 561.4 MB in the beginning and 648.3 MB in the end (delta: -86.9 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:09:10,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.66 ms. Allocated memory is still 685.8 MB. Free memory was 648.3 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:09:10,596 INFO L168 Benchmark]: Boogie Preprocessor took 19.58 ms. Allocated memory is still 685.8 MB. Free memory was 647.3 MB in the beginning and 646.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:09:10,596 INFO L168 Benchmark]: RCFGBuilder took 238.12 ms. Allocated memory is still 685.8 MB. Free memory was 646.2 MB in the beginning and 631.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:09:10,597 INFO L168 Benchmark]: BlockEncodingV2 took 64.96 ms. Allocated memory is still 685.8 MB. Free memory was 631.6 MB in the beginning and 626.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:09:10,597 INFO L168 Benchmark]: TraceAbstraction took 148.07 ms. Allocated memory is still 685.8 MB. Free memory was 626.2 MB in the beginning and 617.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:09:10,598 INFO L168 Benchmark]: BuchiAutomizer took 1805.90 ms. Allocated memory is still 685.8 MB. Free memory was 617.5 MB in the beginning and 421.9 MB in the end (delta: 195.7 MB). Peak memory consumption was 195.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:09:10,601 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.13 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 561.4 MB in the beginning and 648.3 MB in the end (delta: -86.9 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.66 ms. Allocated memory is still 685.8 MB. Free memory was 648.3 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.58 ms. Allocated memory is still 685.8 MB. Free memory was 647.3 MB in the beginning and 646.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 238.12 ms. Allocated memory is still 685.8 MB. Free memory was 646.2 MB in the beginning and 631.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 64.96 ms. Allocated memory is still 685.8 MB. Free memory was 631.6 MB in the beginning and 626.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 148.07 ms. Allocated memory is still 685.8 MB. Free memory was 626.2 MB in the beginning and 617.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1805.90 ms. Allocated memory is still 685.8 MB. Free memory was 617.5 MB in the beginning and 421.9 MB in the end (delta: 195.7 MB). Peak memory consumption was 195.7 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -2 * x + 101 and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 24 SDslu, 9 SDs, 0 SdLazy, 45 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 35ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:09:04.735 ----------------------------------------------- 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_YULFud/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:09:11.438 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check