/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 13:16:36,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:16:36,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:16:36,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:16:36,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:16:36,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:16:36,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:16:36,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:16:36,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:16:36,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:16:36,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:16:36,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:16:36,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:16:36,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:16:36,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:16:36,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:16:36,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:16:36,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:16:36,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:16:36,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:16:36,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:16:36,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:16:36,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:16:36,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:16:36,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:16:36,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:16:36,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:16:36,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:16:36,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:16:36,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:16:36,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:16:36,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:16:36,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:16:36,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:16:36,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:16:36,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:16:36,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:16:36,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:16:36,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:16:36,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:16:36,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:16:36,977 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 13:16:36,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:16:36,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:16:36,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:16:36,993 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:16:36,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:16:36,993 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:16:36,994 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:16:36,994 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:16:36,994 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:16:36,994 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:16:36,994 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:16:36,994 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:16:36,995 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:16:36,995 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:16:36,995 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:36,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:16:36,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:16:36,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:16:36,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:16:36,996 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:16:36,996 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:16:36,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:16:36,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:16:36,997 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:16:36,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:16:36,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:16:36,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:16:36,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:16:36,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:16:37,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:16:37,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:16:37,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:16:37,180 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:16:37,180 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:16:37,181 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:16:37,289 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_DntpYG/tmp/3a76e18d26e145c58f18b03e9de16a77/FLAG741da14c5 [2020-07-01 13:16:37,630 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:16:37,631 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:16:37,637 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_DntpYG/tmp/3a76e18d26e145c58f18b03e9de16a77/FLAG741da14c5 [2020-07-01 13:16:38,036 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_DntpYG/tmp/3a76e18d26e145c58f18b03e9de16a77 [2020-07-01 13:16:38,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:16:38,048 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:16:38,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:16:38,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:16:38,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:16:38,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7402a828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38, skipping insertion in model container [2020-07-01 13:16:38,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:16:38,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:16:38,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:16:38,315 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:16:38,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:16:38,347 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:16:38,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38 WrapperNode [2020-07-01 13:16:38,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:16:38,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:16:38,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:16:38,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:16:38,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:16:38,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:16:38,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:16:38,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:16:38,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:16:38,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:16:38,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:16:38,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:16:38,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (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 13:16:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:16:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:16:38,642 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:16:38,642 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 13:16:38,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:16:38 BoogieIcfgContainer [2020-07-01 13:16:38,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:16:38,647 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:16:38,647 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:16:38,649 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:16:38,650 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:16:38" (1/1) ... [2020-07-01 13:16:38,662 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-07-01 13:16:38,664 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:16:38,665 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:16:38,665 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:16:38,666 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:16:38,667 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:16:38,668 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:16:38,668 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:16:38,683 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:16:38,697 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 13:16:38,702 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 13:16:38,703 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:16:38,718 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 13:16:38,720 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 13:16:38,722 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:16:38,722 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:16:38,722 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:16:38,723 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:16:38,723 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-07-01 13:16:38,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:16:38 BasicIcfg [2020-07-01 13:16:38,724 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:16:38,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:16:38,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:16:38,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:16:38,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:16:38" (1/4) ... [2020-07-01 13:16:38,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf6d103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:16:38, skipping insertion in model container [2020-07-01 13:16:38,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (2/4) ... [2020-07-01 13:16:38,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf6d103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:16:38, skipping insertion in model container [2020-07-01 13:16:38,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:16:38" (3/4) ... [2020-07-01 13:16:38,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf6d103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:16:38, skipping insertion in model container [2020-07-01 13:16:38,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:16:38" (4/4) ... [2020-07-01 13:16:38,733 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:16:38,744 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:16:38,752 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:16:38,766 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:16:38,790 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:16:38,790 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:16:38,790 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:16:38,790 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:16:38,790 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:16:38,790 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:16:38,791 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:16:38,791 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:16:38,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 13:16:38,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:16:38,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 13:16:38,869 INFO L268 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-07-01 13:16:38,869 INFO L268 CegarLoopResult]: For program point L16-2(lines 13 21) no Hoare annotation was computed. [2020-07-01 13:16:38,870 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:16:38,870 INFO L268 CegarLoopResult]: For program point L13(lines 13 21) no Hoare annotation was computed. [2020-07-01 13:16:38,870 INFO L271 CegarLoopResult]: At program point L12-2(lines 12 23) the Hoare annotation is: true [2020-07-01 13:16:38,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:16:38 BasicIcfg [2020-07-01 13:16:38,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:16:38,879 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:16:38,880 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:16:38,883 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:16:38,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:16:38,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:16:38" (1/5) ... [2020-07-01 13:16:38,884 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53f1f664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:16:38, skipping insertion in model container [2020-07-01 13:16:38,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:16:38,885 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:16:38" (2/5) ... [2020-07-01 13:16:38,885 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53f1f664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:16:38, skipping insertion in model container [2020-07-01 13:16:38,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:16:38,886 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:16:38" (3/5) ... [2020-07-01 13:16:38,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53f1f664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:16:38, skipping insertion in model container [2020-07-01 13:16:38,886 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:16:38,886 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:16:38" (4/5) ... [2020-07-01 13:16:38,887 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53f1f664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:16:38, skipping insertion in model container [2020-07-01 13:16:38,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:16:38,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:16:38" (5/5) ... [2020-07-01 13:16:38,888 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:16:38,916 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:16:38,916 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:16:38,916 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:16:38,916 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:16:38,917 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:16:38,917 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:16:38,917 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:16:38,917 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:16:38,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 13:16:38,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 13:16:38,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:16:38,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:16:38,943 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:16:38,943 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:16:38,943 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:16:38,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 13:16:38,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 13:16:38,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:16:38,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:16:38,944 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:16:38,944 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 13:16:38,949 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [33] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 3#L12-2true [2020-07-01 13:16:38,950 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true [45] L12-2-->L13: Formula: (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} AuxVars[] AssignedVars[] 6#L13true [36] L13-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~z~0_10 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 7#L16-2true [40] L16-2-->L12-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 3#L12-2true [2020-07-01 13:16:38,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:16:38,956 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-07-01 13:16:38,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:16:38,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99585817] [2020-07-01 13:16:38,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:16:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:39,038 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:16:39,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:16:39,039 INFO L82 PathProgramCache]: Analyzing trace with hash 74192, now seen corresponding path program 1 times [2020-07-01 13:16:39,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:16:39,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321217553] [2020-07-01 13:16:39,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:16:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:39,058 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:16:39,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:16:39,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1951025, now seen corresponding path program 1 times [2020-07-01 13:16:39,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:16:39,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936352093] [2020-07-01 13:16:39,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:16:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:39,078 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:16:39,126 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:16:39,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:16:39,128 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:16:39,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:16:39,128 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:16:39,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:39,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:16:39,128 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:16:39,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:16:39,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:16:39,129 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:16:39,149 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 13:16:39,159 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 13:16:39,167 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 13:16:39,172 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 13:16:39,276 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:16:39,277 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 13:16:39,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:16:39,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:16:39,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:16:39,303 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 13:16:39,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:16:39,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:16:39,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:16:39,345 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:39,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:16:39,380 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:39,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:16:39,418 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:16:39,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:16:39,435 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=-1}] Lambdas: [11, 1, 1] Nus: [0, 0] 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 13:16:39,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:16:39,470 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 13:16:39,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:16:39,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:16:39,891 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:16:39,894 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:16:39,894 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:16:39,895 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:16:39,895 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:16:39,895 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:16:39,895 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:16:39,895 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:16:39,895 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:16:39,895 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:16:39,895 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:16:39,896 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:16:39,898 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 13:16:39,902 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 13:16:39,906 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 13:16:39,912 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 13:16:39,986 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:16:39,992 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:16:39,998 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 13:16:40,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:16:40,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:16:40,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:16:40,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:16:40,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:16:40,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:16:40,014 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 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:16:40,048 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 13:16:40,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:16:40,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:16:40,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:16:40,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:16:40,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:16:40,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:16:40,060 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 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 13:16:40,094 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 13:16:40,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:16:40,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:16:40,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:16:40,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:16:40,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:16:40,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:16:40,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:16:40,102 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 13:16:40,136 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 13:16:40,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:16:40,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:16:40,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:16:40,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:16:40,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:16:40,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:16:40,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:16:40,146 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:16:40,151 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:16:40,151 INFO L444 ModelExtractionUtils]: 2 out of 5 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 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:16:40,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:16:40,174 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:16:40,174 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:16:40,175 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 13:16:40,210 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:16:40,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:16:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:16:40,250 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:16:40,251 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:16:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:16:40,262 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:16:40,263 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:16:40,294 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 13:16:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:16:40,329 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:16:40,330 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:16:40,331 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:16:40,336 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 13:16:40,337 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-07-01 13:16:40,403 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 18 states and 30 transitions. Complement of second has 6 states. [2020-07-01 13:16:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 13:16:40,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:16:40,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-07-01 13:16:40,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 13:16:40,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:16:40,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 13:16:40,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:16:40,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 13:16:40,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:16:40,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 30 transitions. [2020-07-01 13:16:40,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 13:16:40,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 27 transitions. [2020-07-01 13:16:40,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 13:16:40,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 13:16:40,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 27 transitions. [2020-07-01 13:16:40,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:16:40,428 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 27 transitions. [2020-07-01 13:16:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 27 transitions. [2020-07-01 13:16:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-07-01 13:16:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-01 13:16:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2020-07-01 13:16:40,459 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 13:16:40,459 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 13:16:40,460 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 13:16:40,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 24 transitions. [2020-07-01 13:16:40,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 13:16:40,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:16:40,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:16:40,461 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:16:40,461 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 13:16:40,462 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY [33] ULTIMATE.startENTRY-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 76#L12-2 [45] L12-2-->L13: Formula: (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} AuxVars[] AssignedVars[] 71#L13 [2020-07-01 13:16:40,462 INFO L796 eck$LassoCheckResult]: Loop: 71#L13 [43] L13-->L16: Formula: (>= v_ULTIMATE.start_main_~z~0_11 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_11} AuxVars[] AssignedVars[] 77#L16 [34] L16-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (< v_ULTIMATE.start_main_~z~0_6 v_ULTIMATE.start_main_~y~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 78#L16-2 [40] L16-2-->L12-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 70#L12-2 [45] L12-2-->L13: Formula: (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} AuxVars[] AssignedVars[] 71#L13 [2020-07-01 13:16:40,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:16:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2029, now seen corresponding path program 1 times [2020-07-01 13:16:40,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:16:40,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390240366] [2020-07-01 13:16:40,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:16:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:40,472 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:16:40,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:16:40,473 INFO L82 PathProgramCache]: Analyzing trace with hash 2238493, now seen corresponding path program 1 times [2020-07-01 13:16:40,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:16:40,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911059877] [2020-07-01 13:16:40,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:16:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:40,485 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:16:40,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:16:40,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1875139081, now seen corresponding path program 1 times [2020-07-01 13:16:40,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:16:40,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367217219] [2020-07-01 13:16:40,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:16:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:16:40,501 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:16:40,538 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:16:40,538 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:16:40,538 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:16:40,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:16:40,538 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:16:40,538 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:40,539 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:16:40,539 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:16:40,539 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:16:40,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:16:40,539 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:16:40,541 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 13:16:40,545 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 13:16:40,548 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 13:16:40,565 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 13:16:40,630 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:16:40,630 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:40,636 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:16:40,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:16:40,641 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:16:40,641 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:40,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:16:40,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:16:40,681 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:16:40,682 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:40,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:16:40,717 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:16:40,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:16:40,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:16:41,331 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:16:41,334 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:16:41,334 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:16:41,334 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:16:41,334 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:16:41,335 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:16:41,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:16:41,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:16:41,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:16:41,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:16:41,335 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:16:41,335 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:16:41,337 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 13:16:41,342 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 13:16:41,349 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 13:16:41,364 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 13:16:41,423 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:16:41,424 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 13:16:41,429 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 13:16:41,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:16:41,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:16:41,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:16:41,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:16:41,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:16:41,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:16:41,439 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:16:41,473 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 13:16:41,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:16:41,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:16:41,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:16:41,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:16:41,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:16:41,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:16:41,483 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 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:16:41,518 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 13:16:41,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:16:41,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:16:41,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:16:41,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:16:41,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:16:41,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:16:41,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:16:41,526 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:16:41,531 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:16:41,531 INFO L444 ModelExtractionUtils]: 1 out of 5 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 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:16:41,540 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:16:41,540 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:16:41,540 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:16:41,540 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 13:16:41,570 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:16:41,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:16:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:16:41,591 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:16:41,592 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:16:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:16:41,596 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:16:41,597 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:16:41,605 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 13:16:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:16:41,610 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:16:41,611 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:16:41,639 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:16:41,640 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 13:16:41,640 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-07-01 13:16:41,712 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 13 states and 24 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 96 states and 164 transitions. Complement of second has 18 states. [2020-07-01 13:16:41,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 13:16:41,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:16:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-07-01 13:16:41,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 13:16:41,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:16:41,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 13:16:41,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:16:41,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-01 13:16:41,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:16:41,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 164 transitions. [2020-07-01 13:16:41,724 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:16:41,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 0 states and 0 transitions. [2020-07-01 13:16:41,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 13:16:41,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 13:16:41,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 13:16:41,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 13:16:41,725 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:16:41,725 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:16:41,725 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:16:41,725 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 13:16:41,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 13:16:41,725 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:16:41,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 13:16:41,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:16:41 BasicIcfg [2020-07-01 13:16:41,731 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:16:41,734 INFO L168 Benchmark]: Toolchain (without parser) took 3684.67 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 556.6 MB in the beginning and 394.8 MB in the end (delta: 161.8 MB). Peak memory consumption was 191.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:16:41,734 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:16:41,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.95 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 555.2 MB in the beginning and 643.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 13:16:41,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.07 ms. Allocated memory is still 679.0 MB. Free memory was 643.4 MB in the beginning and 642.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:16:41,736 INFO L168 Benchmark]: Boogie Preprocessor took 20.08 ms. Allocated memory is still 679.0 MB. Free memory was 642.1 MB in the beginning and 640.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:16:41,737 INFO L168 Benchmark]: RCFGBuilder took 241.81 ms. Allocated memory is still 679.0 MB. Free memory was 640.7 MB in the beginning and 623.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 50.3 GB. [2020-07-01 13:16:41,738 INFO L168 Benchmark]: BlockEncodingV2 took 77.02 ms. Allocated memory is still 679.0 MB. Free memory was 623.9 MB in the beginning and 618.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:16:41,738 INFO L168 Benchmark]: TraceAbstraction took 153.80 ms. Allocated memory is still 679.0 MB. Free memory was 618.5 MB in the beginning and 610.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:16:41,739 INFO L168 Benchmark]: BuchiAutomizer took 2852.01 ms. Allocated memory is still 679.0 MB. Free memory was 609.1 MB in the beginning and 394.8 MB in the end (delta: 214.3 MB). Peak memory consumption was 214.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:16:41,742 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 5 locations, 8 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 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 298.95 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 555.2 MB in the beginning and 643.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.07 ms. Allocated memory is still 679.0 MB. Free memory was 643.4 MB in the beginning and 642.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.08 ms. Allocated memory is still 679.0 MB. Free memory was 642.1 MB in the beginning and 640.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 241.81 ms. Allocated memory is still 679.0 MB. Free memory was 640.7 MB in the beginning and 623.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.02 ms. Allocated memory is still 679.0 MB. Free memory was 623.9 MB in the beginning and 618.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.80 ms. Allocated memory is still 679.0 MB. Free memory was 618.5 MB in the beginning and 610.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2852.01 ms. Allocated memory is still 679.0 MB. Free memory was 609.1 MB in the beginning and 394.8 MB in the end (delta: 214.3 MB). Peak memory consumption was 214.3 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, 5 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=5occurred 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 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -1 * z + x and consists of 4 locations. One nondeterministic module has affine ranking function -1 * z + y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 38 SDslu, 6 SDs, 0 SdLazy, 51 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 13:16:34.716 ----------------------------------------------- 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_DntpYG/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:16:42.379 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check