19.60/11.42 NO 19.60/11.42 19.60/11.42 Ultimate: Cannot open display: 19.60/11.42 This is Ultimate 0.1.24-8dc7c08-m 19.60/11.42 [2019-03-28 12:06:48,906 INFO L170 SettingsManager]: Resetting all preferences to default values... 19.60/11.42 [2019-03-28 12:06:48,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 19.60/11.42 [2019-03-28 12:06:48,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 19.60/11.42 [2019-03-28 12:06:48,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 19.60/11.42 [2019-03-28 12:06:48,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 19.60/11.42 [2019-03-28 12:06:48,922 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 19.60/11.42 [2019-03-28 12:06:48,923 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 19.60/11.42 [2019-03-28 12:06:48,925 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 19.60/11.42 [2019-03-28 12:06:48,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 19.60/11.42 [2019-03-28 12:06:48,926 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 19.60/11.42 [2019-03-28 12:06:48,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 19.60/11.42 [2019-03-28 12:06:48,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 19.60/11.42 [2019-03-28 12:06:48,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 19.60/11.42 [2019-03-28 12:06:48,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 19.60/11.42 [2019-03-28 12:06:48,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 19.60/11.42 [2019-03-28 12:06:48,931 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 19.60/11.42 [2019-03-28 12:06:48,933 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 19.60/11.42 [2019-03-28 12:06:48,935 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 19.60/11.42 [2019-03-28 12:06:48,936 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 19.60/11.42 [2019-03-28 12:06:48,937 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 19.60/11.42 [2019-03-28 12:06:48,938 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 19.60/11.42 [2019-03-28 12:06:48,940 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 19.60/11.42 [2019-03-28 12:06:48,940 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 19.60/11.42 [2019-03-28 12:06:48,941 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 19.60/11.42 [2019-03-28 12:06:48,941 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 19.60/11.42 [2019-03-28 12:06:48,942 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 19.60/11.42 [2019-03-28 12:06:48,943 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 19.60/11.42 [2019-03-28 12:06:48,943 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 19.60/11.42 [2019-03-28 12:06:48,945 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 19.60/11.42 [2019-03-28 12:06:48,945 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 19.60/11.42 [2019-03-28 12:06:48,946 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 19.60/11.42 [2019-03-28 12:06:48,947 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 19.60/11.42 [2019-03-28 12:06:48,947 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 19.60/11.42 [2019-03-28 12:06:48,948 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 19.60/11.42 [2019-03-28 12:06:48,948 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 19.60/11.42 [2019-03-28 12:06:48,948 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 19.60/11.42 [2019-03-28 12:06:48,949 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 19.60/11.42 [2019-03-28 12:06:48,950 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 19.60/11.42 [2019-03-28 12:06:48,950 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf 19.60/11.42 [2019-03-28 12:06:48,965 INFO L110 SettingsManager]: Loading preferences was successful 19.60/11.42 [2019-03-28 12:06:48,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 19.60/11.42 [2019-03-28 12:06:48,966 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 19.60/11.42 [2019-03-28 12:06:48,966 INFO L133 SettingsManager]: * Rewrite not-equals=true 19.60/11.42 [2019-03-28 12:06:48,966 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 19.60/11.42 [2019-03-28 12:06:48,967 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 19.60/11.42 [2019-03-28 12:06:48,967 INFO L133 SettingsManager]: * Use SBE=true 19.60/11.42 [2019-03-28 12:06:48,967 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 19.60/11.42 [2019-03-28 12:06:48,967 INFO L133 SettingsManager]: * Use old map elimination=false 19.60/11.42 [2019-03-28 12:06:48,967 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 19.60/11.42 [2019-03-28 12:06:48,968 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 19.60/11.42 [2019-03-28 12:06:48,968 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 19.60/11.42 [2019-03-28 12:06:48,968 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 19.60/11.42 [2019-03-28 12:06:48,968 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 19.60/11.42 [2019-03-28 12:06:48,968 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:48,969 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 19.60/11.42 [2019-03-28 12:06:48,969 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 19.60/11.42 [2019-03-28 12:06:48,969 INFO L133 SettingsManager]: * Check division by zero=IGNORE 19.60/11.42 [2019-03-28 12:06:48,969 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 19.60/11.42 [2019-03-28 12:06:48,969 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 19.60/11.42 [2019-03-28 12:06:48,970 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 19.60/11.42 [2019-03-28 12:06:48,970 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 19.60/11.42 [2019-03-28 12:06:48,970 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 19.60/11.42 [2019-03-28 12:06:48,970 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 19.60/11.42 [2019-03-28 12:06:48,970 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 19.60/11.42 [2019-03-28 12:06:48,971 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 19.60/11.42 [2019-03-28 12:06:48,971 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 19.60/11.42 [2019-03-28 12:06:48,971 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 19.60/11.42 [2019-03-28 12:06:48,971 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 19.60/11.42 [2019-03-28 12:06:48,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 19.60/11.42 [2019-03-28 12:06:49,019 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 19.60/11.42 [2019-03-28 12:06:49,022 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 19.60/11.42 [2019-03-28 12:06:49,024 INFO L271 PluginConnector]: Initializing CDTParser... 19.60/11.42 [2019-03-28 12:06:49,024 INFO L276 PluginConnector]: CDTParser initialized 19.60/11.42 [2019-03-28 12:06:49,025 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c 19.60/11.42 [2019-03-28 12:06:49,086 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/4cdbb7d136ef4fafa8716b74ccc413a7/FLAG276ea33bd 19.60/11.42 [2019-03-28 12:06:49,633 INFO L307 CDTParser]: Found 1 translation units. 19.60/11.42 [2019-03-28 12:06:49,634 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c 19.60/11.42 [2019-03-28 12:06:49,640 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/4cdbb7d136ef4fafa8716b74ccc413a7/FLAG276ea33bd 19.60/11.42 [2019-03-28 12:06:50,038 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/4cdbb7d136ef4fafa8716b74ccc413a7 19.60/11.42 [2019-03-28 12:06:50,050 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 19.60/11.42 [2019-03-28 12:06:50,051 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 19.60/11.42 [2019-03-28 12:06:50,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 19.60/11.42 [2019-03-28 12:06:50,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 19.60/11.42 [2019-03-28 12:06:50,056 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 19.60/11.42 [2019-03-28 12:06:50,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430a19bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50, skipping insertion in model container 19.60/11.42 [2019-03-28 12:06:50,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 19.60/11.42 [2019-03-28 12:06:50,089 INFO L176 MainTranslator]: Built tables and reachable declarations 19.60/11.42 [2019-03-28 12:06:50,242 INFO L206 PostProcessor]: Analyzing one entry point: main 19.60/11.42 [2019-03-28 12:06:50,246 INFO L191 MainTranslator]: Completed pre-run 19.60/11.42 [2019-03-28 12:06:50,263 INFO L206 PostProcessor]: Analyzing one entry point: main 19.60/11.42 [2019-03-28 12:06:50,277 INFO L195 MainTranslator]: Completed translation 19.60/11.42 [2019-03-28 12:06:50,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50 WrapperNode 19.60/11.42 [2019-03-28 12:06:50,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 19.60/11.42 [2019-03-28 12:06:50,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 19.60/11.42 [2019-03-28 12:06:50,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 19.60/11.42 [2019-03-28 12:06:50,279 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 19.60/11.42 [2019-03-28 12:06:50,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 19.60/11.42 [2019-03-28 12:06:50,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 19.60/11.42 [2019-03-28 12:06:50,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 19.60/11.42 [2019-03-28 12:06:50,369 INFO L276 PluginConnector]: Boogie Preprocessor initialized 19.60/11.42 [2019-03-28 12:06:50,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 19.60/11.42 [2019-03-28 12:06:50,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 19.60/11.42 [2019-03-28 12:06:50,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... 19.60/11.42 [2019-03-28 12:06:50,387 INFO L276 PluginConnector]: RCFGBuilder initialized 19.60/11.42 [2019-03-28 12:06:50,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (1/1) ... 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 19.60/11.42 [2019-03-28 12:06:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure Ack 19.60/11.42 [2019-03-28 12:06:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack 19.60/11.42 [2019-03-28 12:06:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 19.60/11.42 [2019-03-28 12:06:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 19.60/11.42 [2019-03-28 12:06:50,588 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 19.60/11.42 [2019-03-28 12:06:50,589 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. 19.60/11.42 [2019-03-28 12:06:50,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:50 BoogieIcfgContainer 19.60/11.42 [2019-03-28 12:06:50,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 19.60/11.42 [2019-03-28 12:06:50,591 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 19.60/11.42 [2019-03-28 12:06:50,591 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 19.60/11.42 [2019-03-28 12:06:50,593 INFO L276 PluginConnector]: BlockEncodingV2 initialized 19.60/11.42 [2019-03-28 12:06:50,593 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:50" (1/1) ... 19.60/11.42 [2019-03-28 12:06:50,611 INFO L313 BlockEncoder]: Initial Icfg 17 locations, 22 edges 19.60/11.42 [2019-03-28 12:06:50,612 INFO L258 BlockEncoder]: Using Remove infeasible edges 19.60/11.42 [2019-03-28 12:06:50,613 INFO L263 BlockEncoder]: Using Maximize final states 19.60/11.42 [2019-03-28 12:06:50,614 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 19.60/11.42 [2019-03-28 12:06:50,614 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 19.60/11.42 [2019-03-28 12:06:50,616 INFO L296 BlockEncoder]: Using Remove sink states 19.60/11.42 [2019-03-28 12:06:50,617 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 19.60/11.42 [2019-03-28 12:06:50,617 INFO L179 BlockEncoder]: Using Rewrite not-equals 19.60/11.42 [2019-03-28 12:06:50,632 INFO L185 BlockEncoder]: Using Use SBE 19.60/11.42 [2019-03-28 12:06:50,647 INFO L200 BlockEncoder]: SBE split 2 edges 19.60/11.42 [2019-03-28 12:06:50,652 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 19.60/11.42 [2019-03-28 12:06:50,653 INFO L71 MaximizeFinalStates]: 0 new accepting states 19.60/11.42 [2019-03-28 12:06:50,661 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 19.60/11.42 [2019-03-28 12:06:50,663 INFO L70 RemoveSinkStates]: Removed 4 edges and 3 locations by removing sink states 19.60/11.42 [2019-03-28 12:06:50,665 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 19.60/11.42 [2019-03-28 12:06:50,665 INFO L71 MaximizeFinalStates]: 0 new accepting states 19.60/11.42 [2019-03-28 12:06:50,669 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding 19.60/11.42 [2019-03-28 12:06:50,670 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 19.60/11.42 [2019-03-28 12:06:50,670 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 19.60/11.42 [2019-03-28 12:06:50,671 INFO L71 MaximizeFinalStates]: 0 new accepting states 19.60/11.42 [2019-03-28 12:06:50,671 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 19.60/11.42 [2019-03-28 12:06:50,671 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 19.60/11.42 [2019-03-28 12:06:50,672 INFO L313 BlockEncoder]: Encoded RCFG 12 locations, 18 edges 19.60/11.42 [2019-03-28 12:06:50,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:50 BasicIcfg 19.60/11.42 [2019-03-28 12:06:50,672 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 19.60/11.42 [2019-03-28 12:06:50,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 19.60/11.42 [2019-03-28 12:06:50,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... 19.60/11.42 [2019-03-28 12:06:50,677 INFO L276 PluginConnector]: TraceAbstraction initialized 19.60/11.42 [2019-03-28 12:06:50,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:06:50" (1/4) ... 19.60/11.42 [2019-03-28 12:06:50,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ce7185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:06:50, skipping insertion in model container 19.60/11.42 [2019-03-28 12:06:50,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (2/4) ... 19.60/11.42 [2019-03-28 12:06:50,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ce7185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:06:50, skipping insertion in model container 19.60/11.42 [2019-03-28 12:06:50,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:50" (3/4) ... 19.60/11.42 [2019-03-28 12:06:50,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ce7185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:50, skipping insertion in model container 19.60/11.42 [2019-03-28 12:06:50,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:50" (4/4) ... 19.60/11.42 [2019-03-28 12:06:50,681 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 19.60/11.42 [2019-03-28 12:06:50,691 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 19.60/11.42 [2019-03-28 12:06:50,699 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. 19.60/11.42 [2019-03-28 12:06:50,717 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. 19.60/11.42 [2019-03-28 12:06:50,748 INFO L133 ementStrategyFactory]: Using default assertion order modulation 19.60/11.42 [2019-03-28 12:06:50,748 INFO L382 AbstractCegarLoop]: Interprodecural is true 19.60/11.42 [2019-03-28 12:06:50,749 INFO L383 AbstractCegarLoop]: Hoare is true 19.60/11.42 [2019-03-28 12:06:50,749 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 19.60/11.42 [2019-03-28 12:06:50,749 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 19.60/11.42 [2019-03-28 12:06:50,749 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 19.60/11.42 [2019-03-28 12:06:50,749 INFO L387 AbstractCegarLoop]: Difference is false 19.60/11.42 [2019-03-28 12:06:50,749 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 19.60/11.42 [2019-03-28 12:06:50,750 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 19.60/11.42 [2019-03-28 12:06:50,767 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. 19.60/11.42 [2019-03-28 12:06:50,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. 19.60/11.42 [2019-03-28 12:06:50,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. 19.60/11.42 [2019-03-28 12:06:50,842 INFO L451 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: true 19.60/11.42 [2019-03-28 12:06:50,842 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. 19.60/11.42 [2019-03-28 12:06:50,842 INFO L451 ceAbstractionStarter]: At program point L14-1(line 14) the Hoare annotation is: true 19.60/11.42 [2019-03-28 12:06:50,842 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. 19.60/11.42 [2019-03-28 12:06:50,843 INFO L448 ceAbstractionStarter]: For program point AckFINAL(lines 10 15) no Hoare annotation was computed. 19.60/11.42 [2019-03-28 12:06:50,843 INFO L451 ceAbstractionStarter]: At program point L13-1(line 13) the Hoare annotation is: true 19.60/11.42 [2019-03-28 12:06:50,843 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. 19.60/11.42 [2019-03-28 12:06:50,843 INFO L448 ceAbstractionStarter]: For program point L13-2(line 13) no Hoare annotation was computed. 19.60/11.42 [2019-03-28 12:06:50,843 INFO L448 ceAbstractionStarter]: For program point AckEXIT(lines 10 15) no Hoare annotation was computed. 19.60/11.42 [2019-03-28 12:06:50,843 INFO L451 ceAbstractionStarter]: At program point AckENTRY(lines 10 15) the Hoare annotation is: true 19.60/11.42 [2019-03-28 12:06:50,844 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. 19.60/11.42 [2019-03-28 12:06:50,844 INFO L451 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: true 19.60/11.42 [2019-03-28 12:06:50,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:50 BasicIcfg 19.60/11.42 [2019-03-28 12:06:50,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 19.60/11.42 [2019-03-28 12:06:50,848 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 19.60/11.42 [2019-03-28 12:06:50,848 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 19.60/11.42 [2019-03-28 12:06:50,852 INFO L276 PluginConnector]: BuchiAutomizer initialized 19.60/11.42 [2019-03-28 12:06:50,853 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.60/11.42 [2019-03-28 12:06:50,853 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.03 12:06:50" (1/5) ... 19.60/11.42 [2019-03-28 12:06:50,854 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d0b5bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:06:50, skipping insertion in model container 19.60/11.42 [2019-03-28 12:06:50,854 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.60/11.42 [2019-03-28 12:06:50,854 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:06:50" (2/5) ... 19.60/11.42 [2019-03-28 12:06:50,855 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d0b5bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.03 12:06:50, skipping insertion in model container 19.60/11.42 [2019-03-28 12:06:50,855 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.60/11.42 [2019-03-28 12:06:50,855 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:06:50" (3/5) ... 19.60/11.42 [2019-03-28 12:06:50,855 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d0b5bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:50, skipping insertion in model container 19.60/11.42 [2019-03-28 12:06:50,855 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.60/11.42 [2019-03-28 12:06:50,856 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:06:50" (4/5) ... 19.60/11.42 [2019-03-28 12:06:50,856 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d0b5bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:50, skipping insertion in model container 19.60/11.42 [2019-03-28 12:06:50,856 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis 19.60/11.42 [2019-03-28 12:06:50,856 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:50" (5/5) ... 19.60/11.42 [2019-03-28 12:06:50,858 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 19.60/11.42 [2019-03-28 12:06:50,887 INFO L133 ementStrategyFactory]: Using default assertion order modulation 19.60/11.42 [2019-03-28 12:06:50,887 INFO L374 BuchiCegarLoop]: Interprodecural is true 19.60/11.42 [2019-03-28 12:06:50,887 INFO L375 BuchiCegarLoop]: Hoare is true 19.60/11.42 [2019-03-28 12:06:50,887 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates 19.60/11.42 [2019-03-28 12:06:50,887 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE 19.60/11.42 [2019-03-28 12:06:50,887 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION 19.60/11.42 [2019-03-28 12:06:50,888 INFO L379 BuchiCegarLoop]: Difference is false 19.60/11.42 [2019-03-28 12:06:50,888 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA 19.60/11.42 [2019-03-28 12:06:50,888 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== 19.60/11.42 [2019-03-28 12:06:50,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. 19.60/11.42 [2019-03-28 12:06:50,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 19.60/11.42 [2019-03-28 12:06:50,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.60/11.42 [2019-03-28 12:06:50,913 INFO L119 BuchiIsEmpty]: Starting construction of run 19.60/11.42 [2019-03-28 12:06:50,920 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 19.60/11.42 [2019-03-28 12:06:50,921 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] 19.60/11.42 [2019-03-28 12:06:50,921 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ 19.60/11.42 [2019-03-28 12:06:50,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. 19.60/11.42 [2019-03-28 12:06:50,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 19.60/11.42 [2019-03-28 12:06:50,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.60/11.42 [2019-03-28 12:06:50,923 INFO L119 BuchiIsEmpty]: Starting construction of run 19.60/11.42 [2019-03-28 12:06:50,923 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] 19.60/11.42 [2019-03-28 12:06:50,923 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] 19.60/11.42 [2019-03-28 12:06:50,929 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [65] ULTIMATE.startENTRY-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_8) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_6|, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~x~0] 5#L23true [49] L23-->AckENTRY: Formula: (and (= |v_Ack_#in~mInParam_4| v_ULTIMATE.start_main_~x~0_7) (= |v_Ack_#in~nInParam_4| v_ULTIMATE.start_main_~y~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{Ack_#in~n=|v_Ack_#in~nInParam_4|, Ack_#in~m=|v_Ack_#in~mInParam_4|} AuxVars[] AssignedVars[Ack_#in~n, Ack_#in~m]< 13#AckENTRYtrue 19.60/11.42 [2019-03-28 12:06:50,929 INFO L796 eck$LassoCheckResult]: Loop: 13#AckENTRYtrue [52] AckENTRY-->L12: Formula: (and (= v_Ack_~n_1 |v_Ack_#in~n_1|) (= v_Ack_~m_1 |v_Ack_#in~m_1|)) InVars {Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|} OutVars{Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|, Ack_~m=v_Ack_~m_1, Ack_~n=v_Ack_~n_1} AuxVars[] AssignedVars[Ack_~m, Ack_~n] 6#L12true [60] L12-->L13: Formula: (< 0 v_Ack_~m_3) InVars {Ack_~m=v_Ack_~m_3} OutVars{Ack_~m=v_Ack_~m_3} AuxVars[] AssignedVars[] 11#L13true [62] L13-->L14: Formula: (< 0 v_Ack_~n_4) InVars {Ack_~n=v_Ack_~n_4} OutVars{Ack_~n=v_Ack_~n_4} AuxVars[] AssignedVars[] 4#L14true [35] L14-->AckENTRY: Formula: (and (= |v_Ack_#in~nInParam_2| (+ v_Ack_~n_6 (- 1))) (= |v_Ack_#in~mInParam_2| v_Ack_~m_8)) InVars {Ack_~m=v_Ack_~m_8, Ack_~n=v_Ack_~n_6} OutVars{Ack_#in~n=|v_Ack_#in~nInParam_2|, Ack_#in~m=|v_Ack_#in~mInParam_2|} AuxVars[] AssignedVars[Ack_#in~n, Ack_#in~m]< 13#AckENTRYtrue 19.60/11.42 [2019-03-28 12:06:50,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:50,935 INFO L82 PathProgramCache]: Analyzing trace with hash 3025, now seen corresponding path program 1 times 19.60/11.42 [2019-03-28 12:06:50,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.60/11.42 [2019-03-28 12:06:50,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.60/11.42 [2019-03-28 12:06:50,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:50,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:50,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:51,010 INFO L82 PathProgramCache]: Analyzing trace with hash 2532270, now seen corresponding path program 1 times 19.60/11.42 [2019-03-28 12:06:51,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.60/11.42 [2019-03-28 12:06:51,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.60/11.42 [2019-03-28 12:06:51,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:51,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:51,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:51,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1499707522, now seen corresponding path program 1 times 19.60/11.42 [2019-03-28 12:06:51,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.60/11.42 [2019-03-28 12:06:51,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.60/11.42 [2019-03-28 12:06:51,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:51,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:51,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:51,127 INFO L216 LassoAnalysis]: Preferences: 19.60/11.42 [2019-03-28 12:06:51,128 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.60/11.42 [2019-03-28 12:06:51,129 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.60/11.42 [2019-03-28 12:06:51,129 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.60/11.42 [2019-03-28 12:06:51,129 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.60/11.42 [2019-03-28 12:06:51,129 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,129 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.60/11.42 [2019-03-28 12:06:51,130 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.60/11.42 [2019-03-28 12:06:51,130 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 19.60/11.42 [2019-03-28 12:06:51,130 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.60/11.42 [2019-03-28 12:06:51,130 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.60/11.42 [2019-03-28 12:06:51,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,270 INFO L300 LassoAnalysis]: Preprocessing complete. 19.60/11.42 [2019-03-28 12:06:51,271 INFO L412 LassoAnalysis]: Checking for nontermination... 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,279 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:51,288 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:51,289 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#res=0} Honda state: {Ack_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,317 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,317 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:51,345 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:51,345 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#in~m=1} Honda state: {Ack_#in~m=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,352 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:51,355 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:51,356 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_~m=0} Honda state: {Ack_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,382 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,383 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:51,386 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:51,386 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret2=0} Honda state: {Ack_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,413 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,413 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:51,416 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:51,417 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_~n=0} Honda state: {Ack_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,444 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:51,448 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:51,448 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret1=0} Honda state: {Ack_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,476 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,476 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:51,480 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:51,480 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret0=0} Honda state: {Ack_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,507 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,507 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,538 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:51,538 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:51,570 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. 19.60/11.42 [2019-03-28 12:06:51,572 INFO L216 LassoAnalysis]: Preferences: 19.60/11.42 [2019-03-28 12:06:51,572 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.60/11.42 [2019-03-28 12:06:51,572 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.60/11.42 [2019-03-28 12:06:51,572 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.60/11.42 [2019-03-28 12:06:51,573 INFO L127 ssoRankerPreferences]: Use exernal solver: false 19.60/11.42 [2019-03-28 12:06:51,573 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:51,573 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.60/11.42 [2019-03-28 12:06:51,573 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.60/11.42 [2019-03-28 12:06:51,573 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop 19.60/11.42 [2019-03-28 12:06:51,573 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.60/11.42 [2019-03-28 12:06:51,574 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.60/11.42 [2019-03-28 12:06:51,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:51,669 INFO L300 LassoAnalysis]: Preprocessing complete. 19.60/11.42 [2019-03-28 12:06:51,675 INFO L497 LassoAnalysis]: Using template 'affine'. 19.60/11.42 [2019-03-28 12:06:51,677 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.60/11.42 Termination analysis: LINEAR_WITH_GUESSES 19.60/11.42 Number of strict supporting invariants: 0 19.60/11.42 Number of non-strict supporting invariants: 1 19.60/11.42 Consider only non-deceasing supporting invariants: true 19.60/11.42 Simplify termination arguments: true 19.60/11.42 Simplify supporting invariants: trueOverapproximate stem: false 19.60/11.42 [2019-03-28 12:06:51,679 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.60/11.42 [2019-03-28 12:06:51,679 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.60/11.42 [2019-03-28 12:06:51,680 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.60/11.42 [2019-03-28 12:06:51,680 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.60/11.42 [2019-03-28 12:06:51,680 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.60/11.42 [2019-03-28 12:06:51,682 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.60/11.42 [2019-03-28 12:06:51,683 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.60/11.42 [2019-03-28 12:06:51,687 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.60/11.42 [2019-03-28 12:06:51,687 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.60/11.42 Termination analysis: LINEAR_WITH_GUESSES 19.60/11.42 Number of strict supporting invariants: 0 19.60/11.42 Number of non-strict supporting invariants: 1 19.60/11.42 Consider only non-deceasing supporting invariants: true 19.60/11.42 Simplify termination arguments: true 19.60/11.42 Simplify supporting invariants: trueOverapproximate stem: false 19.60/11.42 [2019-03-28 12:06:51,688 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.60/11.42 [2019-03-28 12:06:51,688 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.60/11.42 [2019-03-28 12:06:51,688 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.60/11.42 [2019-03-28 12:06:51,689 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.60/11.42 [2019-03-28 12:06:51,689 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.60/11.42 [2019-03-28 12:06:51,689 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.60/11.42 [2019-03-28 12:06:51,689 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.60/11.42 [2019-03-28 12:06:51,691 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.60/11.42 [2019-03-28 12:06:51,691 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.60/11.42 Termination analysis: LINEAR_WITH_GUESSES 19.60/11.42 Number of strict supporting invariants: 0 19.60/11.42 Number of non-strict supporting invariants: 1 19.60/11.42 Consider only non-deceasing supporting invariants: true 19.60/11.42 Simplify termination arguments: true 19.60/11.42 Simplify supporting invariants: trueOverapproximate stem: false 19.60/11.42 [2019-03-28 12:06:51,692 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.60/11.42 [2019-03-28 12:06:51,692 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.60/11.42 [2019-03-28 12:06:51,692 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.60/11.42 [2019-03-28 12:06:51,692 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.60/11.42 [2019-03-28 12:06:51,693 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.60/11.42 [2019-03-28 12:06:51,693 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.60/11.42 [2019-03-28 12:06:51,693 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.60/11.42 [2019-03-28 12:06:51,698 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.60/11.42 [2019-03-28 12:06:51,699 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.60/11.42 Termination analysis: LINEAR_WITH_GUESSES 19.60/11.42 Number of strict supporting invariants: 0 19.60/11.42 Number of non-strict supporting invariants: 1 19.60/11.42 Consider only non-deceasing supporting invariants: true 19.60/11.42 Simplify termination arguments: true 19.60/11.42 Simplify supporting invariants: trueOverapproximate stem: false 19.60/11.42 [2019-03-28 12:06:51,699 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.60/11.42 [2019-03-28 12:06:51,699 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.60/11.42 [2019-03-28 12:06:51,700 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.60/11.42 [2019-03-28 12:06:51,700 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.60/11.42 [2019-03-28 12:06:51,700 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.60/11.42 [2019-03-28 12:06:51,701 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.60/11.42 [2019-03-28 12:06:51,701 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.60/11.42 [2019-03-28 12:06:51,702 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.60/11.42 [2019-03-28 12:06:51,702 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.60/11.42 Termination analysis: LINEAR_WITH_GUESSES 19.60/11.42 Number of strict supporting invariants: 0 19.60/11.42 Number of non-strict supporting invariants: 1 19.60/11.42 Consider only non-deceasing supporting invariants: true 19.60/11.42 Simplify termination arguments: true 19.60/11.42 Simplify supporting invariants: trueOverapproximate stem: false 19.60/11.42 [2019-03-28 12:06:51,703 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.60/11.42 [2019-03-28 12:06:51,703 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.60/11.42 [2019-03-28 12:06:51,703 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.60/11.42 [2019-03-28 12:06:51,704 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.60/11.42 [2019-03-28 12:06:51,704 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.60/11.42 [2019-03-28 12:06:51,704 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.60/11.42 [2019-03-28 12:06:51,705 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.60/11.42 [2019-03-28 12:06:51,706 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.60/11.42 [2019-03-28 12:06:51,706 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.60/11.42 Termination analysis: LINEAR_WITH_GUESSES 19.60/11.42 Number of strict supporting invariants: 0 19.60/11.42 Number of non-strict supporting invariants: 1 19.60/11.42 Consider only non-deceasing supporting invariants: true 19.60/11.42 Simplify termination arguments: true 19.60/11.42 Simplify supporting invariants: trueOverapproximate stem: false 19.60/11.42 [2019-03-28 12:06:51,707 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.60/11.42 [2019-03-28 12:06:51,707 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.60/11.42 [2019-03-28 12:06:51,707 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.60/11.42 [2019-03-28 12:06:51,707 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.60/11.42 [2019-03-28 12:06:51,707 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.60/11.42 [2019-03-28 12:06:51,708 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.60/11.42 [2019-03-28 12:06:51,708 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.60/11.42 [2019-03-28 12:06:51,710 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.60/11.42 [2019-03-28 12:06:51,710 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.60/11.42 Termination analysis: LINEAR_WITH_GUESSES 19.60/11.42 Number of strict supporting invariants: 0 19.60/11.42 Number of non-strict supporting invariants: 1 19.60/11.42 Consider only non-deceasing supporting invariants: true 19.60/11.42 Simplify termination arguments: true 19.60/11.42 Simplify supporting invariants: trueOverapproximate stem: false 19.60/11.42 [2019-03-28 12:06:51,710 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.60/11.42 [2019-03-28 12:06:51,711 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.60/11.42 [2019-03-28 12:06:51,711 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.60/11.42 [2019-03-28 12:06:51,711 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.60/11.42 [2019-03-28 12:06:51,711 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.60/11.42 [2019-03-28 12:06:51,712 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.60/11.42 [2019-03-28 12:06:51,712 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.60/11.42 [2019-03-28 12:06:51,713 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. 19.60/11.42 [2019-03-28 12:06:51,713 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: 19.60/11.42 Termination analysis: LINEAR_WITH_GUESSES 19.60/11.42 Number of strict supporting invariants: 0 19.60/11.42 Number of non-strict supporting invariants: 1 19.60/11.42 Consider only non-deceasing supporting invariants: true 19.60/11.42 Simplify termination arguments: true 19.60/11.42 Simplify supporting invariants: trueOverapproximate stem: false 19.60/11.42 [2019-03-28 12:06:51,714 INFO L339 nArgumentSynthesizer]: Template has degree 0. 19.60/11.42 [2019-03-28 12:06:51,714 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. 19.60/11.42 [2019-03-28 12:06:51,714 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts 19.60/11.42 [2019-03-28 12:06:51,714 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts 19.60/11.42 [2019-03-28 12:06:51,715 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. 19.60/11.42 [2019-03-28 12:06:51,715 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. 19.60/11.42 [2019-03-28 12:06:51,716 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. 19.60/11.42 [2019-03-28 12:06:51,720 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. 19.60/11.42 [2019-03-28 12:06:51,725 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. 19.60/11.42 [2019-03-28 12:06:51,725 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 19.60/11.42 [2019-03-28 12:06:51,727 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... 19.60/11.42 [2019-03-28 12:06:51,727 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. 19.60/11.42 [2019-03-28 12:06:51,727 INFO L518 LassoAnalysis]: Proved termination. 19.60/11.42 [2019-03-28 12:06:51,728 INFO L520 LassoAnalysis]: Termination argument consisting of: 19.60/11.42 Ranking function f(Ack_#in~n) = 1*Ack_#in~n 19.60/11.42 Supporting invariants [] 19.60/11.42 [2019-03-28 12:06:51,729 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed 19.60/11.42 [2019-03-28 12:06:51,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.60/11.42 [2019-03-28 12:06:51,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core 19.60/11.42 [2019-03-28 12:06:51,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.60/11.42 [2019-03-28 12:06:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.60/11.42 [2019-03-28 12:06:51,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core 19.60/11.42 [2019-03-28 12:06:51,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... 19.60/11.42 [2019-03-28 12:06:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 19.60/11.42 [2019-03-28 12:06:51,846 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization 19.60/11.42 [2019-03-28 12:06:51,852 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 19.60/11.42 [2019-03-28 12:06:51,853 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states. Second operand 4 states. 19.60/11.42 [2019-03-28 12:06:52,002 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states.. Second operand 4 states. Result 64 states and 105 transitions. Complement of second has 24 states. 19.60/11.42 [2019-03-28 12:06:52,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states 19.60/11.42 [2019-03-28 12:06:52,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. 19.60/11.42 [2019-03-28 12:06:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. 19.60/11.42 [2019-03-28 12:06:52,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. 19.60/11.42 [2019-03-28 12:06:52,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.60/11.42 [2019-03-28 12:06:52,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. 19.60/11.42 [2019-03-28 12:06:52,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.60/11.42 [2019-03-28 12:06:52,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 2 letters. Loop has 8 letters. 19.60/11.42 [2019-03-28 12:06:52,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. 19.60/11.42 [2019-03-28 12:06:52,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 105 transitions. 19.60/11.42 [2019-03-28 12:06:52,028 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 19.60/11.42 [2019-03-28 12:06:52,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 47 states and 86 transitions. 19.60/11.42 [2019-03-28 12:06:52,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 19.60/11.42 [2019-03-28 12:06:52,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 19.60/11.42 [2019-03-28 12:06:52,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 86 transitions. 19.60/11.42 [2019-03-28 12:06:52,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 19.60/11.42 [2019-03-28 12:06:52,041 INFO L706 BuchiCegarLoop]: Abstraction has 47 states and 86 transitions. 19.60/11.42 [2019-03-28 12:06:52,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 86 transitions. 19.60/11.42 [2019-03-28 12:06:52,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. 19.60/11.42 [2019-03-28 12:06:52,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. 19.60/11.42 [2019-03-28 12:06:52,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 59 transitions. 19.60/11.42 [2019-03-28 12:06:52,082 INFO L729 BuchiCegarLoop]: Abstraction has 35 states and 59 transitions. 19.60/11.42 [2019-03-28 12:06:52,082 INFO L609 BuchiCegarLoop]: Abstraction has 35 states and 59 transitions. 19.60/11.42 [2019-03-28 12:06:52,082 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ 19.60/11.42 [2019-03-28 12:06:52,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 59 transitions. 19.60/11.42 [2019-03-28 12:06:52,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 19.60/11.42 [2019-03-28 12:06:52,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.60/11.42 [2019-03-28 12:06:52,085 INFO L119 BuchiIsEmpty]: Starting construction of run 19.60/11.42 [2019-03-28 12:06:52,086 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] 19.60/11.42 [2019-03-28 12:06:52,086 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] 19.60/11.42 [2019-03-28 12:06:52,087 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY [65] ULTIMATE.startENTRY-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_8) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_6|, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~x~0] 148#L23 [49] L23-->AckENTRY: Formula: (and (= |v_Ack_#in~mInParam_4| v_ULTIMATE.start_main_~x~0_7) (= |v_Ack_#in~nInParam_4| v_ULTIMATE.start_main_~y~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{Ack_#in~n=|v_Ack_#in~nInParam_4|, Ack_#in~m=|v_Ack_#in~mInParam_4|} AuxVars[] AssignedVars[Ack_#in~n, Ack_#in~m]< 152#AckENTRY [52] AckENTRY-->L12: Formula: (and (= v_Ack_~n_1 |v_Ack_#in~n_1|) (= v_Ack_~m_1 |v_Ack_#in~m_1|)) InVars {Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|} OutVars{Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|, Ack_~m=v_Ack_~m_1, Ack_~n=v_Ack_~n_1} AuxVars[] AssignedVars[Ack_~m, Ack_~n] 174#L12 [61] L12-->L13: Formula: (> 0 v_Ack_~m_3) InVars {Ack_~m=v_Ack_~m_3} OutVars{Ack_~m=v_Ack_~m_3} AuxVars[] AssignedVars[] 173#L13 [63] L13-->L14: Formula: (> 0 v_Ack_~n_4) InVars {Ack_~n=v_Ack_~n_4} OutVars{Ack_~n=v_Ack_~n_4} AuxVars[] AssignedVars[] 144#L14 19.60/11.42 [2019-03-28 12:06:52,087 INFO L796 eck$LassoCheckResult]: Loop: 144#L14 [35] L14-->AckENTRY: Formula: (and (= |v_Ack_#in~nInParam_2| (+ v_Ack_~n_6 (- 1))) (= |v_Ack_#in~mInParam_2| v_Ack_~m_8)) InVars {Ack_~m=v_Ack_~m_8, Ack_~n=v_Ack_~n_6} OutVars{Ack_#in~n=|v_Ack_#in~nInParam_2|, Ack_#in~m=|v_Ack_#in~mInParam_2|} AuxVars[] AssignedVars[Ack_#in~n, Ack_#in~m]< 147#AckENTRY [52] AckENTRY-->L12: Formula: (and (= v_Ack_~n_1 |v_Ack_#in~n_1|) (= v_Ack_~m_1 |v_Ack_#in~m_1|)) InVars {Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|} OutVars{Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|, Ack_~m=v_Ack_~m_1, Ack_~n=v_Ack_~n_1} AuxVars[] AssignedVars[Ack_~m, Ack_~n] 168#L12 [60] L12-->L13: Formula: (< 0 v_Ack_~m_3) InVars {Ack_~m=v_Ack_~m_3} OutVars{Ack_~m=v_Ack_~m_3} AuxVars[] AssignedVars[] 163#L13 [63] L13-->L14: Formula: (> 0 v_Ack_~n_4) InVars {Ack_~n=v_Ack_~n_4} OutVars{Ack_~n=v_Ack_~n_4} AuxVars[] AssignedVars[] 144#L14 19.60/11.42 [2019-03-28 12:06:52,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:52,087 INFO L82 PathProgramCache]: Analyzing trace with hash 90169701, now seen corresponding path program 1 times 19.60/11.42 [2019-03-28 12:06:52,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.60/11.42 [2019-03-28 12:06:52,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.60/11.42 [2019-03-28 12:06:52,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:52,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:52,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 19.60/11.42 [2019-03-28 12:06:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 19.60/11.42 [2019-03-28 12:06:52,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 19.60/11.42 [2019-03-28 12:06:52,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 19.60/11.42 [2019-03-28 12:06:52,140 INFO L799 eck$LassoCheckResult]: stem already infeasible 19.60/11.42 [2019-03-28 12:06:52,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:52,141 INFO L82 PathProgramCache]: Analyzing trace with hash 2018101, now seen corresponding path program 1 times 19.60/11.42 [2019-03-28 12:06:52,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.60/11.42 [2019-03-28 12:06:52,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.60/11.42 [2019-03-28 12:06:52,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:52,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:52,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:52,229 INFO L216 LassoAnalysis]: Preferences: 19.60/11.42 [2019-03-28 12:06:52,230 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.60/11.42 [2019-03-28 12:06:52,230 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.60/11.42 [2019-03-28 12:06:52,230 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.60/11.42 [2019-03-28 12:06:52,230 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.60/11.42 [2019-03-28 12:06:52,230 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:52,230 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.60/11.42 [2019-03-28 12:06:52,230 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.60/11.42 [2019-03-28 12:06:52,231 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop 19.60/11.42 [2019-03-28 12:06:52,231 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.60/11.42 [2019-03-28 12:06:52,231 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.60/11.42 [2019-03-28 12:06:52,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:52,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:52,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:52,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:52,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:52,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:52,332 INFO L300 LassoAnalysis]: Preprocessing complete. 19.60/11.42 [2019-03-28 12:06:52,332 INFO L412 LassoAnalysis]: Checking for nontermination... 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:52,338 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:52,339 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:52,344 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:52,344 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret1=0} Honda state: {Ack_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:52,376 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:52,377 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:52,380 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:52,380 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#res=0} Honda state: {Ack_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:52,409 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:52,409 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:52,413 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:52,413 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret0=0} Honda state: {Ack_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:52,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:52,441 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:52,446 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:52,446 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret2=0} Honda state: {Ack_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:52,472 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:52,473 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:52,506 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:52,506 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:53,095 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:53,096 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#in~n=1, Ack_~n=-7} Honda state: {Ack_#in~n=1, Ack_~n=-7} Generalized eigenvectors: [{Ack_#in~n=-5, Ack_~n=-1}, {Ack_#in~n=4, Ack_~n=0}, {Ack_#in~n=-8, Ack_~n=0}] Lambdas: [1, 2, 0] Nus: [1, 1] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:53,125 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:53,125 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:53,130 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:53,131 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_~m=4, Ack_#in~m=4} Honda state: {Ack_~m=4, Ack_#in~m=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 [2019-03-28 12:06:53,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 19.60/11.42 [2019-03-28 12:06:53,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 19.60/11.42 [2019-03-28 12:06:53,158 INFO L87 Difference]: Start difference. First operand 35 states and 59 transitions. cyclomatic complexity: 27 Second operand 5 states. 19.60/11.42 [2019-03-28 12:06:53,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 19.60/11.42 [2019-03-28 12:06:53,260 INFO L93 Difference]: Finished difference Result 53 states and 88 transitions. 19.60/11.42 [2019-03-28 12:06:53,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 19.60/11.42 [2019-03-28 12:06:53,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 88 transitions. 19.60/11.42 [2019-03-28 12:06:53,267 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 19.60/11.42 [2019-03-28 12:06:53,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 88 transitions. 19.60/11.42 [2019-03-28 12:06:53,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 19.60/11.42 [2019-03-28 12:06:53,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 19.60/11.42 [2019-03-28 12:06:53,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 88 transitions. 19.60/11.42 [2019-03-28 12:06:53,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. 19.60/11.42 [2019-03-28 12:06:53,271 INFO L706 BuchiCegarLoop]: Abstraction has 53 states and 88 transitions. 19.60/11.42 [2019-03-28 12:06:53,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 88 transitions. 19.60/11.42 [2019-03-28 12:06:53,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. 19.60/11.42 [2019-03-28 12:06:53,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. 19.60/11.42 [2019-03-28 12:06:53,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 74 transitions. 19.60/11.42 [2019-03-28 12:06:53,278 INFO L729 BuchiCegarLoop]: Abstraction has 47 states and 74 transitions. 19.60/11.42 [2019-03-28 12:06:53,279 INFO L609 BuchiCegarLoop]: Abstraction has 47 states and 74 transitions. 19.60/11.42 [2019-03-28 12:06:53,279 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ 19.60/11.42 [2019-03-28 12:06:53,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 74 transitions. 19.60/11.42 [2019-03-28 12:06:53,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 19.60/11.42 [2019-03-28 12:06:53,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false 19.60/11.42 [2019-03-28 12:06:53,281 INFO L119 BuchiIsEmpty]: Starting construction of run 19.60/11.42 [2019-03-28 12:06:53,282 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] 19.60/11.42 [2019-03-28 12:06:53,282 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] 19.60/11.42 [2019-03-28 12:06:53,282 INFO L794 eck$LassoCheckResult]: Stem: 242#ULTIMATE.startENTRY [65] ULTIMATE.startENTRY-->L23: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_8) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_6|, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_3, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~x~0] 243#L23 [49] L23-->AckENTRY: Formula: (and (= |v_Ack_#in~mInParam_4| v_ULTIMATE.start_main_~x~0_7) (= |v_Ack_#in~nInParam_4| v_ULTIMATE.start_main_~y~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{Ack_#in~n=|v_Ack_#in~nInParam_4|, Ack_#in~m=|v_Ack_#in~mInParam_4|} AuxVars[] AssignedVars[Ack_#in~n, Ack_#in~m]< 257#AckENTRY [52] AckENTRY-->L12: Formula: (and (= v_Ack_~n_1 |v_Ack_#in~n_1|) (= v_Ack_~m_1 |v_Ack_#in~m_1|)) InVars {Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|} OutVars{Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|, Ack_~m=v_Ack_~m_1, Ack_~n=v_Ack_~n_1} AuxVars[] AssignedVars[Ack_~m, Ack_~n] 272#L12 [60] L12-->L13: Formula: (< 0 v_Ack_~m_3) InVars {Ack_~m=v_Ack_~m_3} OutVars{Ack_~m=v_Ack_~m_3} AuxVars[] AssignedVars[] 279#L13 [63] L13-->L14: Formula: (> 0 v_Ack_~n_4) InVars {Ack_~n=v_Ack_~n_4} OutVars{Ack_~n=v_Ack_~n_4} AuxVars[] AssignedVars[] 266#L14 19.60/11.42 [2019-03-28 12:06:53,282 INFO L796 eck$LassoCheckResult]: Loop: 266#L14 [35] L14-->AckENTRY: Formula: (and (= |v_Ack_#in~nInParam_2| (+ v_Ack_~n_6 (- 1))) (= |v_Ack_#in~mInParam_2| v_Ack_~m_8)) InVars {Ack_~m=v_Ack_~m_8, Ack_~n=v_Ack_~n_6} OutVars{Ack_#in~n=|v_Ack_#in~nInParam_2|, Ack_#in~m=|v_Ack_#in~mInParam_2|} AuxVars[] AssignedVars[Ack_#in~n, Ack_#in~m]< 283#AckENTRY [52] AckENTRY-->L12: Formula: (and (= v_Ack_~n_1 |v_Ack_#in~n_1|) (= v_Ack_~m_1 |v_Ack_#in~m_1|)) InVars {Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|} OutVars{Ack_#in~n=|v_Ack_#in~n_1|, Ack_#in~m=|v_Ack_#in~m_1|, Ack_~m=v_Ack_~m_1, Ack_~n=v_Ack_~n_1} AuxVars[] AssignedVars[Ack_~m, Ack_~n] 287#L12 [60] L12-->L13: Formula: (< 0 v_Ack_~m_3) InVars {Ack_~m=v_Ack_~m_3} OutVars{Ack_~m=v_Ack_~m_3} AuxVars[] AssignedVars[] 285#L13 [63] L13-->L14: Formula: (> 0 v_Ack_~n_4) InVars {Ack_~n=v_Ack_~n_4} OutVars{Ack_~n=v_Ack_~n_4} AuxVars[] AssignedVars[] 266#L14 19.60/11.42 [2019-03-28 12:06:53,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:53,283 INFO L82 PathProgramCache]: Analyzing trace with hash 90169670, now seen corresponding path program 1 times 19.60/11.42 [2019-03-28 12:06:53,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.60/11.42 [2019-03-28 12:06:53,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.60/11.42 [2019-03-28 12:06:53,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:53,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:53,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2018101, now seen corresponding path program 2 times 19.60/11.42 [2019-03-28 12:06:53,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.60/11.42 [2019-03-28 12:06:53,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.60/11.42 [2019-03-28 12:06:53,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:53,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 19.60/11.42 [2019-03-28 12:06:53,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1535999494, now seen corresponding path program 1 times 19.60/11.42 [2019-03-28 12:06:53,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 19.60/11.42 [2019-03-28 12:06:53,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 19.60/11.42 [2019-03-28 12:06:53,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,302 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 19.60/11.42 [2019-03-28 12:06:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 19.60/11.42 [2019-03-28 12:06:53,386 INFO L216 LassoAnalysis]: Preferences: 19.60/11.42 [2019-03-28 12:06:53,386 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.60/11.42 [2019-03-28 12:06:53,386 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.60/11.42 [2019-03-28 12:06:53,387 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.60/11.42 [2019-03-28 12:06:53,387 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.60/11.42 [2019-03-28 12:06:53,387 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:53,387 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.60/11.42 [2019-03-28 12:06:53,387 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.60/11.42 [2019-03-28 12:06:53,387 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop 19.60/11.42 [2019-03-28 12:06:53,387 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.60/11.42 [2019-03-28 12:06:53,388 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.60/11.42 [2019-03-28 12:06:53,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:53,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:53,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:53,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:53,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:53,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:53,508 INFO L300 LassoAnalysis]: Preprocessing complete. 19.60/11.42 [2019-03-28 12:06:53,508 INFO L412 LassoAnalysis]: Checking for nontermination... 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:53,512 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:53,512 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:53,520 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:53,520 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_~m=4, Ack_#in~m=4} Honda state: {Ack_~m=4, Ack_#in~m=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:53,549 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:53,549 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:53,590 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:53,590 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:54,566 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:54,567 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#in~n=-5, Ack_~n=-7} Honda state: {Ack_#in~n=-5, Ack_~n=-7} Generalized eigenvectors: [{Ack_#in~n=-5, Ack_~n=-1}, {Ack_#in~n=4, Ack_~n=0}, {Ack_#in~n=-2, Ack_~n=0}] Lambdas: [1, 0, 0] Nus: [1, 0] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:54,594 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:54,594 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:54,598 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:54,598 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#res=0} Honda state: {Ack_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:54,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:54,624 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:54,628 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:54,628 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret2=0} Honda state: {Ack_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:54,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:54,654 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:54,657 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:54,657 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret1=0} Honda state: {Ack_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:54,683 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:54,684 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:54,687 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:54,687 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret0=0} Honda state: {Ack_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 [2019-03-28 12:06:54,799 INFO L216 LassoAnalysis]: Preferences: 19.60/11.42 [2019-03-28 12:06:54,799 INFO L124 ssoRankerPreferences]: Compute integeral hull: false 19.60/11.42 [2019-03-28 12:06:54,799 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true 19.60/11.42 [2019-03-28 12:06:54,799 INFO L126 ssoRankerPreferences]: Term annotations enabled: false 19.60/11.42 [2019-03-28 12:06:54,799 INFO L127 ssoRankerPreferences]: Use exernal solver: true 19.60/11.42 [2019-03-28 12:06:54,799 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:54,800 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false 19.60/11.42 [2019-03-28 12:06:54,800 INFO L130 ssoRankerPreferences]: Path of dumped script: 19.60/11.42 [2019-03-28 12:06:54,800 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso 19.60/11.42 [2019-03-28 12:06:54,800 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank 19.60/11.42 [2019-03-28 12:06:54,800 INFO L282 LassoAnalysis]: Starting lasso preprocessing... 19.60/11.42 [2019-03-28 12:06:54,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true 19.60/11.42 [2019-03-28 12:06:54,915 INFO L300 LassoAnalysis]: Preprocessing complete. 19.60/11.42 [2019-03-28 12:06:54,915 INFO L412 LassoAnalysis]: Checking for nontermination... 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:54,918 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:54,919 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:54,922 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:54,922 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret5=0} Honda state: {ULTIMATE.start_main_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:54,948 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:54,948 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:54,983 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:54,983 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,192 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,192 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#in~n=0, Ack_~n=0} Honda state: {Ack_#in~n=-8, Ack_~n=-8} Generalized eigenvectors: [{Ack_#in~n=0, Ack_~n=0}, {Ack_#in~n=7, Ack_~n=-1}, {Ack_#in~n=-8, Ack_~n=0}] Lambdas: [0, 1, 0] Nus: [0, 1] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,220 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,224 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,224 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,250 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,250 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,253 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,253 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~r~0=0} Honda state: {ULTIMATE.start_main_~r~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,279 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,285 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,285 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#in~m=0, Ack_~m=0} Honda state: {Ack_#in~m=4, Ack_~m=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,311 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,311 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,314 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,314 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,340 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,340 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,343 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,343 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#res=0} Honda state: {Ack_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,369 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,369 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,373 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,373 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret2=0} Honda state: {Ack_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,399 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,399 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,402 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,402 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret0=0} Honda state: {Ack_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,428 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,428 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,431 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,431 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {Ack_#t~ret1=0} Honda state: {Ack_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,457 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,457 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,460 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,461 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,486 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,486 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,489 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,489 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,515 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,515 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,519 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,519 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 19.60/11.42 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) 19.60/11.42 Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 19.60/11.42 [2019-03-28 12:06:55,545 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true 19.60/11.42 [2019-03-28 12:06:55,545 INFO L163 nArgumentSynthesizer]: Using integer mode. 19.60/11.42 [2019-03-28 12:06:55,548 INFO L445 LassoAnalysis]: Proved nontermination for one component. 19.60/11.42 [2019-03-28 12:06:55,548 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret6=0} Honda state: {ULTIMATE.start_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 19.60/11.42 [2019-03-28 12:06:55,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.03 12:06:55 BasicIcfg 19.60/11.42 [2019-03-28 12:06:55,596 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 19.60/11.42 [2019-03-28 12:06:55,596 INFO L168 Benchmark]: Toolchain (without parser) took 5546.36 ms. Allocated memory was 649.6 MB in the beginning and 745.0 MB in the end (delta: 95.4 MB). Free memory was 560.2 MB in the beginning and 566.4 MB in the end (delta: -6.2 MB). Peak memory consumption was 221.1 MB. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,598 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.86 ms. Allocated memory is still 649.6 MB. Free memory was 560.2 MB in the beginning and 550.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.07 ms. Allocated memory was 649.6 MB in the beginning and 661.1 MB in the end (delta: 11.5 MB). Free memory was 550.4 MB in the beginning and 629.0 MB in the end (delta: -78.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,600 INFO L168 Benchmark]: Boogie Preprocessor took 17.74 ms. Allocated memory is still 661.1 MB. Free memory was 627.9 MB in the beginning and 626.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,600 INFO L168 Benchmark]: RCFGBuilder took 203.28 ms. Allocated memory is still 661.1 MB. Free memory was 626.9 MB in the beginning and 611.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,601 INFO L168 Benchmark]: BlockEncodingV2 took 81.87 ms. Allocated memory is still 661.1 MB. Free memory was 611.5 MB in the beginning and 606.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,601 INFO L168 Benchmark]: TraceAbstraction took 174.25 ms. Allocated memory is still 661.1 MB. Free memory was 605.0 MB in the beginning and 594.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,602 INFO L168 Benchmark]: BuchiAutomizer took 4747.90 ms. Allocated memory was 661.1 MB in the beginning and 745.0 MB in the end (delta: 83.9 MB). Free memory was 594.2 MB in the beginning and 566.4 MB in the end (delta: 27.9 MB). Peak memory consumption was 243.6 MB. Max. memory is 50.3 GB. 19.60/11.42 [2019-03-28 12:06:55,606 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 19.60/11.42 --- Results --- 19.60/11.42 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 19.60/11.42 - StatisticsResult: Initial Icfg 19.60/11.42 17 locations, 22 edges 19.60/11.42 - StatisticsResult: Encoded RCFG 19.60/11.42 12 locations, 18 edges 19.60/11.42 * Results from de.uni_freiburg.informatik.ultimate.core: 19.60/11.42 - StatisticsResult: Toolchain Benchmarks 19.60/11.42 Benchmark results are: 19.60/11.42 * CDTParser took 0.20 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 19.60/11.42 * CACSL2BoogieTranslator took 225.86 ms. Allocated memory is still 649.6 MB. Free memory was 560.2 MB in the beginning and 550.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. 19.60/11.42 * Boogie Procedure Inliner took 90.07 ms. Allocated memory was 649.6 MB in the beginning and 661.1 MB in the end (delta: 11.5 MB). Free memory was 550.4 MB in the beginning and 629.0 MB in the end (delta: -78.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 50.3 GB. 19.60/11.42 * Boogie Preprocessor took 17.74 ms. Allocated memory is still 661.1 MB. Free memory was 627.9 MB in the beginning and 626.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 19.60/11.42 * RCFGBuilder took 203.28 ms. Allocated memory is still 661.1 MB. Free memory was 626.9 MB in the beginning and 611.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. 19.60/11.42 * BlockEncodingV2 took 81.87 ms. Allocated memory is still 661.1 MB. Free memory was 611.5 MB in the beginning and 606.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. 19.60/11.42 * TraceAbstraction took 174.25 ms. Allocated memory is still 661.1 MB. Free memory was 605.0 MB in the beginning and 594.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. 19.60/11.42 * BuchiAutomizer took 4747.90 ms. Allocated memory was 661.1 MB in the beginning and 745.0 MB in the end (delta: 83.9 MB). Free memory was 594.2 MB in the beginning and 566.4 MB in the end (delta: 27.9 MB). Peak memory consumption was 243.6 MB. Max. memory is 50.3 GB. 19.60/11.42 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 19.60/11.42 - AllSpecificationsHoldResult: All specifications hold 19.60/11.42 We were not able to verify any specifiation because the program does not contain any specification. 19.60/11.42 - StatisticsResult: Ultimate Automizer benchmark data 19.60/11.42 CFG has 2 procedures, 12 locations, 0 error locations. SAFE Result, 0.1s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 5 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available 19.60/11.42 - StatisticsResult: Constructed decomposition of program 19.60/11.42 Your program was decomposed into 2 terminating modules (1 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function \old(n) and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 47 locations. 19.60/11.42 - StatisticsResult: Timing statistics 19.60/11.42 BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 4.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 47 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 53 SDslu, 53 SDs, 0 SdLazy, 77 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf92 smp100 dnf100 smp100 tf109 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 30 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.2s 19.60/11.42 - TerminationAnalysisResult: Nontermination possible 19.60/11.42 Buchi Automizer proved that your program is nonterminating for some inputs 19.60/11.42 - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. 19.60/11.42 Nontermination argument in form of an infinite execution 19.60/11.42 {|Ack_#res|=0, |ULTIMATE.start_main_#t~nondet4|=0, |ULTIMATE.start_main_#t~nondet3|=0, ULTIMATE.start_main_~r~0=0, |Ack_#t~ret0|=0, ULTIMATE.start_main_~x~0=0, |ULTIMATE.start_#t~ret6|=0, |Ack_#t~ret2|=0, |Ack_#t~ret1|=0, |ULTIMATE.start_main_#res|=0, ULTIMATE.start_main_~y~0=0, |Ack_#in~n|=0, |Ack_#in~m|=0, |ULTIMATE.start_main_#t~ret5|=0, Ack_~m=0, Ack_~n=0} 19.60/11.42 {\result=0, \result=0, \old(m)=4, \old(n)=-8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76bf0839=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5748b0c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41e37f21=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707009d5=0, r=0, n=-8, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@480b246e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a310d9e=0, y=0, m=4} 19.60/11.42 {\result=0, \result=0, \old(m)=4, \old(n)=-9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76bf0839=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5748b0c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41e37f21=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707009d5=0, r=0, n=-9, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@480b246e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a310d9e=0, y=0, m=4} 19.60/11.42 {\result=0, \result=0, \old(m)=4, \old(n)=-10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76bf0839=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5748b0c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41e37f21=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707009d5=0, r=0, n=-10, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@480b246e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a310d9e=0, y=0, m=4} 19.60/11.42 {\result=0, \result=0, \old(m)=4, \old(n)=-11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76bf0839=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5748b0c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41e37f21=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707009d5=0, r=0, n=-11, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@480b246e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a310d9e=0, y=0, m=4} 19.60/11.42 {\result=0, \result=0, \old(m)=4, \old(n)=-12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76bf0839=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5748b0c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41e37f21=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707009d5=0, r=0, n=-12, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@480b246e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a310d9e=0, y=0, m=4} 19.60/11.42 - StatisticsResult: NonterminationArgumentStatistics 19.60/11.42 Unbounded Execution 2GEVs Lambdas: [0, 1, 0] Mus: [0, 1] 19.60/11.42 - NonterminatingLassoResult [Line: 14]: Nonterminating execution 19.60/11.42 Found a nonterminating execution for the following lasso shaped sequence of statements. 19.60/11.42 Stem: 19.60/11.42 [L18] int x = __VERIFIER_nondet_int(); 19.60/11.42 [L19] int y = __VERIFIER_nondet_int(); 19.60/11.42 [L20] COND FALSE !(x < 0) 19.60/11.42 [L23] CALL Ack(x, y) 19.60/11.42 [L12] COND FALSE !(m == 0) 19.60/11.42 [L13] COND FALSE !(n == 0) 19.60/11.42 Loop: 19.60/11.42 [L14] CALL Ack(m, n-1) 19.60/11.42 [L12] COND FALSE !(m == 0) 19.60/11.42 [L13] COND FALSE !(n == 0) 19.60/11.42 End of lasso representation. 19.60/11.42 RESULT: Ultimate proved your program to be incorrect! 19.60/11.42 !SESSION 2019-03-28 12:06:46.086 ----------------------------------------------- 19.60/11.42 eclipse.buildId=unknown 19.60/11.42 java.version=1.8.0_181 19.60/11.42 java.vendor=Oracle Corporation 19.60/11.42 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 19.60/11.42 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c 19.60/11.42 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 -i /export/starexec/sandbox2/benchmark/theBenchmark.c 19.60/11.42 19.60/11.42 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:06:55.845 19.60/11.42 !MESSAGE The workspace will exit with unsaved changes in this session. 19.60/11.42 Received shutdown request... 19.60/11.42 Ultimate: 19.60/11.42 GTK+ Version Check 19.60/11.42 EOF